Best Casement Windows 2025

Advertising Disclosure

Last Updated - 26.07.2025

Best Choice

01

Framelux

Basement Window, Plastic, White W x H: 90 x 40 cm/900 x 400 mm, Triple Glazing (32 mm), Rotation/Tilt incl. Mushroom Head Lock, DIN Right (Handle on Left), 60 mm Profile

Show more
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Stable and efficient: The frame has a overall depth of 60 mm (Slimline) and is based on a 4-chamber system with a U-shaped steel core inside for more stability.
Safety: Includes high-quality mushroom head lock for more safety and burglary protection.
Includes: Tilt function, stylish window handle, window sill connection profile (30 mm).
Glazing: The window has thermal-insulating double glazing with a 32 mm (4-10-4-10-4i) glass unit.
Design: W x H: 90 x 40 cm/900 x 400 mm with a 60 mm overall depth and triple glazing.

105,51 €
02

JeCo

Basement window - plastic - window - inside white / outside colour: anthracite, mahogany, walnut, dark oak, golden oak, various dimensions, DIN left/right, double glazing.

Show more
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Traditional appearance: the cellar windows with square glazing strips set new standards in house construction or house renovation
Safe shipping: the windows are sent securely packaged
Narrow profile: the white frame has a 60 mm depth and a 4-chamber system, plus a steel core in U-shape for more stability and light exposure
Glazing: the window has a double thermal glazing with argon - 24 mm (4/16/4) - Ug = 1.1 W/m²K
Cellar window dimensions: we offer you all standard cellar window dimensions.

59,90 €
03

UrbanWave

Air Conditioning Window Seal

Show more
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Product Type:Home Organizer & Storage
Gl Type: DIY
Air Conditioning Window Seal, Window Seal for Mobile Air Conditioners, 300 cm Waterproof Hot Air Stop for Tumble Dryer, Exhaust Dryer, Double Zip Window Seal for Roof Windows, Casement Windows

15,08 €
Value for Money

04

Winline

Double-Sided Tape, Washable, No Residue, Transparent, Removable, Reusable Adhesive Strip, Extra-Strong Adhesive Strength, Waterproof, Non-Slip, Multifunctional

Show more

27% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Washable and reusable: Our nano tape is environmentally friendly and non-toxic, washable and infinitely reusable. If the tape is dirty, you can clean it with clear water and let it air dry to reuse. Please make sure not to use any cloths or cleaning agents.
Versatile use: The double-sided waterproof tape can be used in the kitchen, office, bathroom, living room, garden, etc. For example: car phone holder, posters, picture frames, mobile phone cases, pen holders, wall stickers, hooks, small tools, adhesive pads, decorative patches, wall decoration, balloons, house numbers. To ensure a good adhesive effect, make sure the surface is clean, has no holes and is dust free.
Strong viscosity: Our double-sided tape leaves no residue and is made of high-quality acrylic. It sticks to smooth surfaces and supports up to 1 kg (2.2 pounds). The product is subject to strict quality tests. This double-sided high-performance tape is a professional and highly durable product. It works perfectly in the temperature range from -16 °C to 62 °C.
Easy to use: unique size. Length: 3 m, width 30 mm, thickness 2 mm. Simply cut to any size and length you want. This double-sided tape is made of polyurethane (PU) gel material. Due to the production with an innovative nano technology, it can adhere to almost any smooth surface and is very easy to remove without leaving any residue. In addition, it is transparent, so it does not stand out and is almost invisible.
- - -

11,59 € 15,99 €(27% Off off)
05

Sekey

Sekey Window Seal for Mobile Air Conditioners 110 x 45 cm, Air Conditioning, Tumble Dryer, Exhaust Dryer, Hot Air Stop for Attaching to Windows, Skylights, Casement Windows/Window Sealing Air Conditioning

Show more
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Wide applications: The window seal is suitable for most types of windows. Please measure the size of your window and choose the most suitable one. Note: Applies to sliding windows. Size: 80 x 45cm / 110 x 45cm / 130 x 45 cm / 150 x 45 cm.
Package includes: Window seal x 1, Velcro strap x 1, instruction manual (English language not guaranteed) x 1, cable tie x 2. You also have the opportunity to ask your questions in the FAQs on Amazon.
High-quality material: The Sekey window seal is made of 210D super durable Oxford fabric. Waterproof and insect-proof. Hot air is kept away and the indoor temperature is kept stable. The material is very safe and does not harm the human body.
Energy-saving and time-efficient: Ensure a stable temperature in your room, keep the room and cool. Energy saving and environmental protection with low power consumption.
Easy to install and remove: Easy tool-free installation and no drilling holes in the wall. Save time and no damage to the wall, it is so easy to solve the problem with air conditioning hoses.

6,99 €
06

HOOMEE

Sekey Window Seal for Mobile Air Conditioners, Air Conditioning, Tumble Dryer, Exhaust Dryer, Hot Air Stop for Attaching to Windows, Roof Windows, Casement Windows/Window Seal Air Conditioning

Show more
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Save money with the energy-saving window seal - by sealing the window, the cooling performance of the air conditioning system is increased. This will reduce the overall energy consumption, as the room is cooled down faster and a stable temperature is maintained. This air conditioning system window seal pays for itself in no time at all. The window remains fully functional and can be closed and opened as usual
For the sake of the environment – HOOMEE loves the Earth: This mobile air conditioning window seal helps to reduce energy consumption and reduce carbon dioxide emissions, which is particularly high in summer due to the massive use of air conditioners. Plus, it also provides perfect protection against small uninvited summer guests and prevents moisture from entering. The window seal for mobile air conditioning devices is a great addition to any household
For air conditioning units with single and dual hose technology: Thanks to the two zip openings, the window seal is suitable for all portable air conditioning systems regardless of the manufacturer. The material of the window seal is durable, UV resistant, water resistant and washable at 40 °C. With German installation instructions:
Extra-strong zip closure – for maximum hold of the hose, the window seal is made with extra strong zips that prevent the automatic opening of the closure when using the hose. Cable ties are included for providing additional support and attachment for the product
Efficient and easy assembly, no drilling required – the window seal for air conditioners is for windows with a circumference of 500 cm Measure the 4 sides of the window. Simply stick the supplied adhesive tape to the window frame, attach the air conditioner window seal to the window and frame and you're done. The window seal for air conditioners reliably prevents the return flow of warm outside air into the air-conditioned interior and directs the warm air from the air conditioner to the outside

25,99 €
07

MOEGFY

MOEGFY 400 cm Window Seal for Mobile Air Conditioners, Air Conditioners, Tumble Dryer, Exhaust Dryer, Hot Air Stop for Attaching to Windows, Roof Windows, Casement Windows, Window Seal Air

Show more
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Wide application: our window air conditioning seal set has been specially designed for mobile air conditioners, drum dryers and exhaust dryers and allows these devices to operate more efficiently by dissipating hot air even when the window is open. Suitable for tilt and casement windows, but not compatible with sliding windows. Currently available in 6 sizes from 300 cm/400 cm/500 cm/560 cm/600 cm. Measure your window before purchasing to choose the right size.
Portable and reusable: Our portable AC window ventilation set is not a disposable product. After the summer season, simply clean it with water to reuse it the following year (the packaging bag can be used for storage). Designed with 2 double sided zippers to adjust the opening size based on the hose diameter, making it suitable for portable air conditioners with one or two hoses.
Large, medium and low pressure: We have used 210T polyester as the best choice for heat treatment with PU-based systems and double waste and wind turbines. This also means that the heat treatment system can also be used for air conditioning, combustion, wind and other purposes.
Efficiently dissipate hot air and prevent backflow: The window air conditioner set helps to dissipate warm air from the air-conditioned room through the climate hose and prevent backflow. It cools your room more effectively, reduces energy consumption, saves electricity costs, reduces carbon dioxide emissions and protects the environment. In addition, the window air conditioner seal kit can also prevent flies and spiders from entering the room through the window.
Easy installation: Our product contains a window seal for the air conditioning, instructions (English language not guaranteed), adhesive tape and cable ties (for attaching the hose). No drilling or special tools are required. Simply follow the detailed instructions for quick installation.

22,99 €
08

EGNBU

EGNBU Window Seal for Portable Air Conditioners, Tumble Dryers, Exhaust Air Dryers, Hot Air Stop to Attach to Windows, Skylights and Casement Windows, No Drilling Holes Required, 400 cm

Show more
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Universal - suitable for all portable air conditioning units and tumble dryers: Whether for windows that open to the left or windows that open to the right, bottom hung windows or skylights, the EGNBU window seal will get the job done. Suitable for windows with a maximum perimeter of 400 cm
Reduce energy consumption - EGNBU loves the earth: This window seal helps reduce energy consumption and carbon dioxide emissions, which are particularly high in summer due to the massive use of air conditioning. The EGNBU window seal for air conditioners prevents warm air from circulating in your room and saves on electricity bills
Increase cooling performance: Enjoy a cooler environment in summer thanks to EGNBU! The EGNBU air conditioner window seal is taped around your window and then zips around the nozzle of your hose and blocks the backflow of warm air so that your portable air conditioner can be more efficient and cool your room in less time
Hot air stop: The EGNBU air conditioner window seal keeps warm air out of the hose of your portable air conditioner by locking the hose between the window sash and the window casing. Our window seal keeps out insects, mosquitoes, rain and creates a "closed environment" that keeps your room cooler for longer
Easy to install - no need for drilling holes: No need for window kits, everything you need comes with the EGNBU window seal! Simply apply the Velcro tape to the window frame and to the window bag. Attach the window seal to the Velcro tape. Then open the zip on the window seal and put your air conditioner hose out of the window. To finish, close the zip tightly around the hose

22,99 €
09

Paerduo

Window Seal for Mobile Air Conditioners, 400 cm Air Conditioning Window Seal Double Zip, Waterproof Hot Air Stop, Suitable for Windows, Casement Windows, Roof Windows, Exhaust Hose, Window

Show more
8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Suitable door and window type: Our window seal for mobile air conditioners is suitable for most doors and windows. If your window is a casement window, my product can be used to complete the sealing work. However, this does not apply to the central pivot window. The balcony door is too large to be sealed, and is not suitable for sliding windows or doors.
Strong air tightness: an extra strong zip is used to better secure the hose of the air conditioner in the window seal. Air conditioning window seal. The zip prevents the cover from opening automatically, which prevents mosquitoes and other insects from entering your room. Provides perfect protection for you and your room.
Improve the air conditioners of the room: the use of air conditioning window seal can drain the warm air in the room outwards and prevent the warm air from returning to the room. After switching on the air conditioner, your room can be cooled quickly and for a long time. Maintain a stable temperature so you can enjoy a cool room in the hot summer.
Easy to install, no punching required: the window seal for mobile air conditioners is suitable for windows with a circumference of 400 cm, and the installation of the window seal air conditioners is also very simple. Measure 4 sides of the window, stick the adhesive tape to the window frame and stick the window seal air conditioners into the window, the installation is complete.
Durable and waterproof: Please rest assured to buy our window seal for mobile air conditioners. The material of the window sealing strips is made of the most modern waterproof materials. It is durable, ultraviolet and does not seep through on rainy days.

19,99 €