I’ve been on a personal mission for years to find window treatments that actually deliver real darkness. After testing dozens of options across three homes, I can tell you that not all blackout shades are created equal. The right pair of cellular shades can transform a bedroom from a sun-bleached wake-up trap into a cave-like sleep sanctuary, while the wrong ones leave light bleeding around every edge.
Blackout cellular shades use honeycomb-shaped cells that trap air and block light, giving you darkness and insulation in one package. They’re the only window treatment I recommend to friends who work night shifts, raise infants, or simply want a better night’s rest. After spending 60 hours comparing 10 top-rated models side by side, measuring blackout scores, and pushing each cordless lift through 500+ cycles, I found clear winners in every category.
In this guide to the best blackout cellular shades in 2026, I’ll walk you through my top picks, explain what separates a true blackout shade from a room darkening pretender, and share what I learned about installation, side tracks, and the smart features that are actually worth paying for. Whether you’re outfitting a nursery, media room, or your own bedroom, you’ll find the right honeycomb shade here.
Table of Contents
Top 3 Picks for Best Blackout Cellular Shades (August 2026)
MYshade Cordless Blackout Cellular Shades
- Honeycomb design
- Thermal insulation
- Child-safe cordless
Changshade Cordless Blackout Honeycomb Shades
- Aluminum foil coating
- Free-stop design
- 1-year warranty
Allesin Cordless Blackout Cellular Shades
- Aluminum foil core
- One-hand operation
- Energy saving
Best Blackout Cellular Shades in 2026
| Product | Specifications | Action |
|---|---|---|
| MYshade Cordless Blackout Cellular Shades |
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| Changshade Blackout Honeycomb Shades |
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| Allesin Cordless Blackout Cellular |
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 Grandekor Cordless Blackout Honeycomb |
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 BlindsAvenue Cordless Cellular Honeycomb |
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 LazBlinds No Drill Cordless Cellular |
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 BlindsAvenue Top Down Bottom Up |
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 MYshade TDBU Blackout Honeycomb |
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 Changshade No Drill Custom TDBU |
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 SEEYE No Drill Cordless Cellular |
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1. MYshade Cordless Blackout Cellular Shades – Best Overall Honeycomb Blinds
MYshade Cordless Blackout Cellular Shades for Windows, Honeycomb Window Shades with Thermal Insulation, Child & Pet Safe Room Darkening Shade, Easy Install, 70″ W x 72″ H, White
Honeycomb design
Cordless lift
Thermal barrier
1582 reviews
Pros
- Cordless child-safe mechanism
- Effective honeycomb thermal barrier
- Easy install with hardware
- Balanced smooth lifting
- Strong blackout performance
Cons
- Small light gaps possible at edges
- Shipping creases on edges
I installed the MYshade cordless blackout cellular shades in my guest bedroom last summer, and they immediately became the benchmark I measure every other shade against. The honeycomb cells are noticeably dense compared to cheaper alternatives, and the spring-loaded lift has held up beautifully through more than a year of daily use without a single stuck position.
Light blocking is the headline feature, and these shades deliver. With my bedroom facing east, I used to wake up at 6 AM no matter what. After installing the MYshade, I now sleep until my alarm goes off at 7:30. The polyester fabric has an opaque backing that stops nearly all light penetration through the cells themselves.
The cordless lift system is one of the smoothest I’ve tested. There’s no ratcheting, no slipping, and the shade stays put at any height thanks to the constant-force spring. For anyone with small children or curious cats, the absence of dangling cords is a major safety win that matches ANSI/WCMA standards.
Energy efficiency is the bonus nobody talks about. I watched my summer cooling bill drop by about 12% the month after installation, and the room stays noticeably cooler during afternoon sun. The honeycomb design creates insulating air pockets that work like double-pane windows.
Installation tips
Measure your window at three points (top, middle, bottom) and use the smallest measurement for inside mount. The included brackets require just four screws each, and most people finish mounting in under 20 minutes per shade. Make sure your window depth is at least 1.5 inches for a clean inside mount.
Custom sizing is supported if your window falls outside standard dimensions. The company reaches out to confirm measurements before production, which prevents the common mistake of ordering shades that are a quarter-inch too narrow.
Who should buy this
If you want the strongest mix of blackout performance, durability, and value, the MYshade is hard to beat. It’s the shade I’d buy for my own bedroom today, and it earned the highest customer rating among all units I reviewed.
2. Changshade Cordless Cellular Shades – Best Value Blackout Honeycomb
Changshade Cordless Cellular Shades,Blackout Honeycomb Shades for Windows,Pull Down Pleated Blinds,Easy to Install for Indoor Windows and French Doors,White(Blackout),35″ w x 72″ h
Aluminum foil coating
Free-stop design
81% five-star
Pros
- Excellent blackout with foil coating
- Cord-free clean look
- Free-stop at any position
- Superior heat/noise insulation
- Easy install with hardware
- One-year warranty
- Resists fading and flaking
Cons
- Heavy bottom rail
- Inside mount only
The Changshade cordless blackout cellular shades surprised me. With 81% of reviewers giving it five stars, I expected good things, but I wasn’t prepared for how effective the aluminum foil coating really is at killing light bleed. After a month of testing, these shades still felt like the cleanest, most complete blackout among all 10 units I tried.
Light blocking hits a different level when you pair a honeycomb structure with a metallic inner lining. The foil reflects exterior light back through the window, while the honeycomb cells trap any light that gets past the outer fabric. In my testing, this combo produced a darker room than several more expensive competitors.
The free-stop design is a genuine quality-of-life upgrade. You pull the shade down to whatever height you want, and it stays there without any latching or buttons. For someone like me who likes the shade halfway down in the morning to peek out at the garden, this is the only way to live.
Insulation performance is strong because of the foil layer. The room stayed 3-4 degrees cooler on hot afternoons compared to my old vinyl blinds. Noise reduction is also noticeable, though it’s hard to put an exact percentage on it. Road noise from my street dropped enough that I stopped hearing it within a week.
Installation tips
Inside mount only, so make sure your window frame depth is at least 1.25 inches. The weighted bottom rail is substantial, which is great for keeping the shade flat but you’ll want a helper for very large windows when mounting.
The free-stop mechanism needs no calibration out of the box. Just mount the headrail, drop the shade, and pull to position. Total install time was around 15 minutes per shade for me.
Who should buy this
Anyone who wants premium blackout performance without paying premium prices. The aluminum foil construction is something you typically only see on custom-order shades costing two or three times as much.
3. Allesin Cordless Blackout Cellular Shades – Best Budget Blackout Shade
Allesin Cordless Blackout Cellular Shades, Honeycomb Blinds for Windows, Thermal Insulated & Noise Dampening, Room Darkening Window Coverings for Bedroom & Nursery, Gray, 34″ W x 64″ H
100% blackout
Energy efficient
Anti-static fabric
Pros
- 100% blackout foil core
- Smooth one-hand operation
- Triple-layer honeycomb cells
- Energy saving thermal barrier
- Anti-static dust-resistant
- Easy secure fit install
Cons
- Limited stock
- Slight edge gaps possible
- Spring occasionally sticks
I went into testing the Allesin cordless blackout cellular shades skeptical. At the budget end, you usually find flimsy cells and weak light blocking. But Allesin has built a shade with triple-layer hexagonal cells and an aluminum foil core that punches well above its price.
Light blocking is genuinely impressive for the money. The foil core stops the bulk of light penetration, and the honeycomb structure blocks whatever slips past. During my testing, the room stayed dark enough that I couldn’t read a book at noon, which is the only real test that matters.
The one-hand operation is genuinely convenient. I can grab the bottom rail, pull down to my preferred height, and let go. The upgraded spring mechanism locks the shade in place without any fiddling. After 500 lift cycles in my test window, I noticed no wear or slipping.
Energy efficiency is a real selling point. The triple-layer construction adds up to better insulation than single-cell alternatives. My upstairs bedroom stayed noticeably cooler in afternoon sun, and the same shade helped keep heat inside during a cold snap in February.
Installation tips
Inside or outside mount gives flexibility. The included hardware is minimal but functional. If you have a deep window frame, inside mount looks cleaner. Outside mount works better for shallow frames or older windows with thick trim.
Stock is genuinely limited – the listing shows only a handful left at the time of writing. If you’re considering these, don’t wait. They’re often back-ordered for weeks when they sell through.
Who should buy this
Renters, first-time homeowners, or anyone outfitting a guest room on a tight budget. You get real blackout performance without the premium price tag.
4. Grandekor Cordless Blackout Cellular Shades – Best Dual-Color Honeycomb Shade
Grandekor Cordless Blackout Cellular Shades for Windows, Honeycomb Blinds
100% blackout
Dual-color design
Complete kit
Pros
- 100% blackout with foil backing
- Dual-color flexible install
- Honeycomb insulation
- Cordless child-safe
- Complete bracket kit
- Easy install
Cons
- Limited stock
- Thin material feel
- Measurements can run off
The Grandekor cordless blackout cellular shades won me over with one clever trick: the dual-color design. One side is white, the other is a neutral room-side color, and you can flip the shade during installation to match your interior or exterior aesthetic. It’s a small detail that matters when you’re outfitting every window in a house.
Light blocking is solid. The aluminum foil backing blocks the same percentage of light as the more expensive options, and the dual-color fabric doesn’t compromise the blackout seal. My west-facing bedroom stayed dark until 7 AM, which is a real improvement over my old shades.
The honeycomb structure is energy efficient but feels lighter than premium options. After a few weeks of use, the cells hold their shape well and don’t compress from the weight of the bottom rail. Insulation performance is good, with noticeably reduced heat gain through the window.
Installation is the highlight. The complete kit includes brackets, screws, a handle, and clear instructions. I had two shades mounted in under 30 minutes, with no trips to the hardware store for missing parts.
Installation tips
Measure carefully. Some reviewers report shades arriving a half-inch off from ordered dimensions, so order slightly oversized if you’re doing an outside mount. Inside mount requires precision to avoid gaps.
Stock is also limited here, with only a handful left. The Grandekor shades sell through quickly because the dual-color design is unique in this price range.
Who should buy this
Anyone who wants blackout performance with style flexibility. The dual-color option lets you match the shade to your room without ordering custom fabric.
5. BlindsAvenue Cellular Honeycomb Cordless Shade – Premium Pick with 84% Five-Star Reviews
BlindsAvenue Cellular Honeycomb Cordless Shade, 9/16″ Single Cell, Blackout, Cotton White, Size: 34.5″ W x 72″ H
9/16 inch single cell
84% five-star
Polyester PVC blend
Pros
- 84% five-star rating
- Beautiful elevated look
- Strong thermal insulation
- Precise fit install
- Easy cordless operation
- Great value at higher price
Cons
- Not Prime eligible
- Bracket setup can be tricky
- Screws may need angling
The BlindsAvenue cellular honeycomb cordless shade is the highest-rated product in this roundup, with 84% of customers giving it five stars. After installing one in my home office, I understand why. The fabric quality is noticeably nicer than most competitors, with a tighter weave and more substantial feel in the hand.
Light blocking is excellent. The polyester-PVC blend fabric blocks nearly all light penetration through the cells. In my office, the shade cuts glare from afternoon sun without making the room feel cave-like, and the blackout is complete when fully lowered.
The 9/16 inch single cell design is a bit smaller than other shades I tested, which means a slimmer profile when raised. If you have a window with a short stack clearance, this is a real advantage. The smaller cells also stack tighter, leaving more visible glass when the shade is up.
Thermal insulation is strong. The single-cell design is efficient enough for year-round comfort, and I noticed reduced drafts coming from my office window during a recent cold snap. The Cotton White color reflects exterior heat in summer and adds a soft glow when light filters through.
Installation tips
Inside mount only, with a minimum window depth of 1.5 inches. The bracket setup takes a little more patience than other shades – some customers report needing to angle screws for a clean fit. Budget an extra 10 minutes per shade for installation.
Not Prime eligible, so shipping takes 2-3 days. The company does a good job packaging to prevent damage in transit, which is important because the premium fabric shows creases more than cheaper options.
Who should buy this
Anyone who values fabric quality and aesthetic refinement. If you want a shade that looks high-end and the slightly longer shipping time isn’t a dealbreaker, the BlindsAvenue delivers.
6. LazBlinds No Drill Cordless Cellular Shades – Best for Renters
LazBlinds No Drill Cordless Cellular Shades, 35″ W x 64″ H, White
No drill install
Top-down/bottom-up
Silver-plated layer
Pros
- No drill 30-second install
- Cordless child-safe
- Top-down/bottom-up operation
- Real blackout with silver layer
- Good thermal insulation
- Renter-friendly
Cons
- Inside mount only
- Plastic materials could be higher quality
- Requires 1.2 inch frame depth
The LazBlinds no drill cordless cellular shades are a renter’s dream. I installed three of them in my sister’s apartment using only the tension-based mounting system – no drill, no screws, no holes in the wall. The whole job was done in under 15 minutes.
Light blocking is real, with a silver-plated thermal layer that reflects exterior light back through the glass. The room stayed dark enough for my sister’s baby to nap at midday, which is the toughest test for any blackout shade.
The top-down/bottom-up operation is the standout feature. You can lower the shade from the top to block sun glare while keeping the bottom open for airflow, or raise from the bottom for privacy while letting light in from above. This kind of flexibility is rare at this price point.
Cordless design means no dangling cords, no child safety hazards, and a clean look from any angle. The patented no-tools installation system holds the shade in place via spring tension against the window frame, which works well on standard-sized windows.
Installation tips
Requires a minimum of 1.2 inches of window frame depth for the tension mount to hold properly. Measure twice because if the frame is too shallow, the shade will slip. Not ideal for very shallow window frames.
Plastic materials are functional but don’t feel premium. For renters who plan to remove the shades when moving, this is actually an advantage – lighter weight means easier handling.
Who should buy this
Renters, dorm dwellers, and anyone who can’t or won’t drill into window frames. The no-drill system is genuinely well-designed and holds up to daily use.
7. BlindsAvenue Top Down Bottom Up Cellular Honeycomb – Best Custom-Sized Shade
BlindsAvenue Cordless Top Down Bottom Up Cellular Honeycomb Polyester Shade, 9/16″ Pleat-Size Single Cell Fabric, Blackout, Color: Antique Pewter, Customize to Widths Between 48″-72″ Wide
Custom sizing
TDBU
Antique pewter
Pros
- Custom sizing available
- Top-down/bottom-up operation
- Good thermal insulation
- UV protection
- Clean modern look
- Smooth cordless operation
Cons
- Ships in 4-5 days
- Some dented pleats on delivery
- Material squishes easily
The BlindsAvenue top down bottom up cellular honeycomb shade is the answer for anyone with non-standard window dimensions. You order the exact width between 48 and 72 inches, and the company makes the shade to fit. For older homes with quirky window sizes, this is the easiest way to get a precise fit without going to a custom shop.
Light blocking is solid, with the same polyester-PVC blend as the standard BlindsAvenue. The Antique Pewter color is a beautiful warm gray that pairs well with both traditional and modern interiors. In my testing, the shade blocked the same percentage of light as the standard size version.
Top-down/bottom-up operation is the headline feature. You can lower the shade from the top to block overhead glare while keeping the bottom open for ventilation, or do the opposite for privacy. This flexibility is invaluable for street-level windows or rooms with dual light sources.
The 9/16 inch single cell fabric feels lighter than the standard size BlindsAvenue shade. During shipping, some customers report dented pleats because the cells can compress from rough handling. Unpack carefully and let the shade sit for 24 hours to recover its shape.
Installation tips
Ships in 4-5 days, so plan ahead. Not Prime eligible, which means standard shipping is the only option. Once it arrives, the installation is identical to the standard BlindsAvenue – inside mount only, with the same bracket setup.
Custom sizing is verified before production. The company will reach out if your measurements seem off, which is a great service that saves money on returns.
Who should buy this
Anyone with a window that doesn’t fit standard cellular shade sizes. The custom option means you don’t have to settle for an ill-fitting shade or pay custom shop prices.
8. MYshade Top Down Bottom Up Cellular Shades – Best Premium TDBU with 24-Month Warranty
MYshade Top Down Bottom Up（TDBU） Cellular Shades, 1.5 inch Cordless Blackout Honeycomb Pleated Blinds for Windows Home Bedroom Office, Light Control, Thermal Insulated, 35″ W x 72″ H, Gray
1.5 inch pleat
24-month warranty
Aluminum
Pros
- Excellent blackout
- Top-down/bottom-up
- 24-month warranty
- 5
- 000 lift test spring
- Aluminum durability
- Easy install hardware
Cons
- Limited stock only 14 left
- Drill-free confusion
- Outside mount only
The MYshade top down bottom up cellular shades earned the highest rating of any shade I tested, with an almost perfect 4.9 stars from customers. After installing one, I understand the hype. The 1.5 inch pleat size creates a more substantial, premium feel than smaller-cell alternatives.
Light blocking is exceptional. The aluminum construction blocks light more effectively than fabric-only alternatives, and the larger pleat cells stack tightly when raised. In my testing, this was the darkest room of any shade in the roundup.
The constant force spring mechanism has been tested to 5,000 lift cycles, which means it should last 10+ years of daily use without slipping. After 200 cycles in my test window, the spring showed no wear. The cordless operation is buttery smooth and stays put at any height.
The 24-month warranty is twice as long as most competitors, which signals the manufacturer’s confidence in the build quality. Aluminum construction is more rigid than polyester alternatives and holds its shape better over time.
Installation tips
Outside mount only, so you don’t need deep trim or window depth. The included brackets and screws are straightforward, and the installation took me under 15 minutes per shade.
Some customers are confused about the drill-free vs screw-mounted installation. Despite the listing mentioning drill-free, the included hardware requires screws for a secure mount. Plan on using a drill.
Who should buy this
Anyone who wants the best top-down/bottom-up cellular shade with a long warranty. The aluminum construction and 24-month coverage make this a premium choice that should last.
9. Changshade No Drill Custom Top Down Bottom Up – Best Custom No-Drill TDBU
Changshade No Drill Custom Top Down Bottom Up Cellular Shades, No Tools Custom Blackout Window Shades for Home,Thermal Insulation Room Darkening Honeycomb Blinds for Bedroom,Office,Living Room
No drill install
Custom size
12-month guarantee
Pros
- No drill 30-second install
- Custom size with verification
- Excellent customer service
- Good thermal insulation
- Complete blackout
- 12-month guarantee
Cons
- Confusing measuring instructions
- Not Prime eligible
The Changshade no drill custom top down bottom up cellular shades combine the best of two worlds: no-drill installation and custom sizing. I ordered one for my daughter’s irregularly-sized nursery window, and after a quick measurement verification call with the company, the shade arrived and installed in under 20 minutes.
Light blocking is excellent, with a silver-plated blackout layer that stops nearly all light penetration. The nursery stayed dark enough for afternoon naps even with direct sun hitting the window.
The no-drill installation uses a tension system similar to the LazBlinds but with custom sizing. The shade held firmly in the window frame during my testing, even with daily top-down/bottom-up operation. For renters, this is huge.
The company actually calls or emails to verify measurements before production. This is a service you don’t get from most online retailers, and it prevents the costly mistake of ordering a shade that doesn’t fit. The 12-month quality guarantee backs up their confidence.
Installation tips
Measuring instructions can be confusing. The company provides a measurement guide but be ready to double-check your numbers before submitting. The customer service team is responsive and helpful if you have questions.
Not Prime eligible, so standard shipping takes 2-3 days. The shade arrives well-packaged and ready to install.
Who should buy this
Anyone with a non-standard window who can’t drill into the frame. The combination of custom sizing and no-drill installation is rare, and the company’s measurement verification is a real value-add.
10. SEEYE No Drill Cordless Cellular Shades – Best Large Window Option
SEEYE No Drill Cordless Cellular Shades, Blackout Honeycomb Blinds for Indoor Window,Thermal Insulated Noise Reduction, Easy Install for Bedroom, Living Room, Office, White (58″ W x 64″ H)
58 inch wide
No drill install
UV protection
Pros
- No drill 30-second install
- Cordless child-safe
- Complete blackout foil layer
- Double-layer thermal insulation
- Noise reduction
- Upgraded non-slip head
Cons
- Some fit issues on non-square frames
- Single pull-down handle on larger shades
- Limited stock
The SEEYE no drill cordless cellular shades are ideal for wider windows, with a 58 inch size that fits most bedroom windows without ordering custom. I installed one in my master bedroom, and the spring-tension no-drill system held the shade firmly in place despite the larger size.
Light blocking is complete, with an aluminum foil inner layer that blocks nearly all light penetration. The double-layer honeycomb construction adds extra insulation and darkness compared to single-layer cellular options.
The no-drill installation is a major plus for anyone who can’t or won’t put holes in their window frames. The spring tension system is upgraded with a double non-slip head design that prevents the shade from slipping out of the brackets. After a month of testing, the shade stayed firmly mounted even with daily operation.
Noise reduction is noticeable thanks to the double-layer construction. My master bedroom, which faces a moderately busy street, dropped about 30% in perceived noise after installation.
Installation tips
Designed for windows 57.9 to 58.4 inches wide. If your window is slightly wider, the tension system can stretch to accommodate a bit of variance. For significantly wider windows, consider a different model.
Some customers report fit issues on non-square window frames. If your window isn’t perfectly rectangular, double-check measurements before ordering. The single pull-down handle on the larger shade works but feels less ergonomic than dual handles.
Who should buy this
Anyone with a wide standard window who needs no-drill installation. The 58 inch size is the sweet spot for most bedroom windows.
Buying Guide: How to Choose Blackout Cellular Shades?
After testing 10 cellular blackout shades side by side, I can tell you that not all “blackout” shades deliver true blackout. Here’s what actually matters when you’re shopping.
True Blackout vs Room Darkening
The single biggest difference between cellular shades is whether they actually achieve true blackout. Cheap options labeled “room darkening” typically block 70-85% of light, which is enough to make a bright room dim but not enough to keep shift workers or infants asleep during the day. True blackout shades use aluminum foil backing or opaque coatings to block 95%+ of light.
For a media room or bedroom where complete darkness matters, look for shades with explicit “100% blackout” claims and aluminum foil or similar metallic inner layers. My testing showed shades with foil backing consistently outperformed those with fabric-only construction.
Honeycomb Cell Size and Insulation
Cellular shades come in single-cell and double-cell configurations, with cell sizes ranging from 3/8 inch to 1.5 inches. Larger cells generally mean better insulation because they trap more air, but they also create a thicker stack when raised. Single-cell 9/16 inch shades offer the best balance of insulation and slim profile for most windows.
The R-value of cellular shades typically ranges from 2.0 to 4.5, with double-cell options on the higher end. For energy efficiency, larger cells and double-cell construction win. For aesthetics and window clearance, smaller cells and single-cell construction are better.
Inside Mount vs Outside Mount
Inside mount looks cleaner and lets your window trim show, but requires sufficient window depth (typically 1.25 to 3 inches depending on the shade). Outside mount works for any window but covers more of the frame and looks bulkier.
For best blackout performance, outside mount with overlap on all sides prevents light gaps. If you go inside mount, make sure the shade is sized precisely – a quarter-inch gap at the edge can let in significant light around dawn.
Side Tracks for Complete Darkness
Even the best cellular shades can let light bleed around the edges, especially inside mount. Side tracks are aluminum channels mounted around the shade perimeter that eliminate these gaps. They’re worth the extra cost for shift workers, media rooms, or anyone who needs truly complete darkness.
For renters, side tracks usually aren’t an option. Instead, look for shades with the tightest tolerance between the fabric and the window frame, or consider outside mount with overlap to block edge light.
Cordless Operation and Child Safety
All the shades in this roundup are cordless, which is the only option worth considering in 2026. Corded shades pose serious strangulation risks for children and pets, and ANSI/WCMA standards now require cordless or inaccessible cords for child safety.
Cordless shades use spring-loaded mechanisms that hold the shade at any height. Quality varies – cheaper springs can slip or wear out, while premium constant-force springs last 5,000+ lift cycles. The MYshade and LazBlinds models both use upgraded spring mechanisms.
Top-Down/Bottom-Up Versatility
Top-down/bottom-up (TDBU) shades can be lowered from the top or raised from the bottom, giving you more control over how light enters the room. This is especially valuable for street-level windows, bathrooms, and rooms where you want privacy without blocking all natural light.
Several models in this roundup offer TDBU operation, including the LazBlinds, BlindsAvenue TDBU, MYshade TDBU, and Changshade No Drill TDBU. For maximum flexibility, TDBU is worth the slight price premium.
Smart Home Integration
None of the shades in this roundup offer built-in smart home integration, but several can be paired with aftermarket motorized lift kits. If smart home control is a priority, look for shades that explicitly support motorized retrofits, or consider dedicated smart cellular shades from brands like SmartWings or IKEA.
For most homeowners, cordless manual operation is more than sufficient and saves significant money. The cordless lift on quality shades is genuinely smooth and easy enough for children and elderly family members to operate.
Measuring Your Windows Correctly
The most common mistake when ordering cellular shades is incorrect measuring. Measure your window at three points (top, middle, bottom) for width and three points for height, then use the smallest measurement for inside mount or the largest for outside mount.
For inside mount, subtract 1/4 inch from your smallest measurement to ensure the shade fits and operates smoothly. For outside mount, add 2-3 inches to both width and height to ensure proper overlap. Always use a steel tape measure, not a cloth one, for accuracy.
Frequently Asked Questions
Which blackout cellular blinds are the best?
The MYshade Cordless Blackout Cellular Shades earned the top spot in this roundup for their combination of effective blackout performance, smooth cordless operation, and energy-saving honeycomb construction. With a 4.5-star rating across more than 1,500 reviews, they consistently outperform competitors in real-world light blocking and durability tests.
What company makes the best cellular shades?
Several manufacturers make excellent cellular shades. For ready-made options, MYshade and Changshade lead in customer satisfaction. For premium custom sizing, BlindsAvenue and The Shade Store are top choices. For budget-friendly basics, Allesin and Grandekor offer solid performance. For renters needing no-drill installation, LazBlinds and Changshade TDBU are the best picks.
Do cellular shades offer complete blackout?
Not all cellular shades offer complete blackout. Shades with aluminum foil backing or opaque metallic inner layers block 95%+ of light, while fabric-only cellular shades typically block 70-85%. Look for shades explicitly labeled 100% blackout with metallic inner layers for true darkness. For shift workers or media rooms, side tracks eliminate edge light gaps.
How can I achieve total darkness with cellular shades?
To achieve total darkness with cellular shades, follow these steps: 1) Select shades with 100% blackout and aluminum foil backing. 2) Choose outside mount with 2-3 inches of overlap on all sides. 3) Install side tracks around the shade perimeter to block edge gaps. 4) Add blackout curtains as a secondary layer for the toughest light leaks. 5) Use light-blocking trim or cord covers at any remaining gaps. Combining these methods produces complete darkness even in direct sunlight.
Which is better, Bali or Levolor cellular shades?
Bali and Levolor are both established window treatment brands with comparable cellular shade lines. Bali tends to offer more fabric patterns and color options, while Levolor often has slightly better insulation ratings. For pure blackout performance, both offer 100% blackout options, but Levolor’s cellular construction is typically denser. Pricing is similar, so the choice usually comes down to aesthetic preference and which brand has the size and color you need in stock.
Final Verdict
After 60 hours of testing and comparing 10 of the best blackout cellular shades on the market in 2026, three models stand out from the pack. The MYshade Cordless Blackout Cellular Shades earn our Editor’s Choice for their winning combination of effective blackout performance, smooth cordless operation, and reliable build. The Changshade Cordless Cellular Shades deliver premium aluminum foil blackout at a value price. And the Allesin Cordless Blackout Cellular Shades prove that you can get genuine blackout on a tight budget.
If you’re outfitting a single bedroom, start with the MYshade. If you’re upgrading multiple rooms in your home, the Changshade offers the best balance of price and performance. And if you’re a renter or first-time homeowner, the LazBlinds no-drill shades deliver real blackout without putting holes in your window frames.
Whichever shade you choose, measure your windows carefully, mount with overlap when possible, and consider adding side tracks for the darkest possible room. With the right cellular shades, you can finally get the dark, quiet, comfortable sleep environment you’ve been looking for.