10 Best Cat Flap for Glass Patio Door in the UK 2025
Updated on 31/07/2025
#1
Recommended
4% Off
Free Shipping
- Flap dimensions of 8 1/4" x 12 1/4" (209.6 x 311.2 mm) provide ample space for small dogs and cats.
- Height adjustment range of 75 7/8" - 80 11/16" (1927 - 2049 mm) accommodates various sliding door frames, simplifying installation.
- Features a durable metal cover and reinforced hinge structure for reliable performance, even in cold weather.
- Secure lock mechanism helps control pet access, ensuring safety during the night or when away from home.
- Tool-free installation allows easy setup, fitting most sliding door tracks, making it a great non-permanent option.
Read More
- Flap dimensions of 8 1/4" x 12 1/4" (209.6 x 311.2 mm) provide ample space for small dogs and cats.
- Height adjustment range of 75 7/8" - 80 11/16" (1927 - 2049 mm) accommodates various sliding door frames, simplifying installation.
- Features a durable metal cover and reinforced hinge structure for reliable performance, even in cold weather.
Read More
#2
Value for Money
Free Shipping
- 4-way locking system for controlling pet access: always open, allow entry only, allow exit only, or fully locked.
- Transparent design seamlessly blends with glass windows and doors, enhancing aesthetics while providing easy access for pets.
- Designed for quiet operation with noise-reducing brushes and injury-preventing rubber components, ensuring a safe environment for pets.
- Constructed from durable ABS plastic and weatherproof materials, this cat flap is resistant to UV rays and built to last.
- Accommodates all cats and small dogs up to 6 kg, providing pets with convenient access while enhancing their living space.
Read More
- 4-way locking system for controlling pet access: always open, allow entry only, allow exit only, or fully locked.
- Transparent design seamlessly blends with glass windows and doors, enhancing aesthetics while providing easy access for pets.
- Designed for quiet operation with noise-reducing brushes and injury-preventing rubber components, ensuring a safe environment for pets.
Read More
#3
Free Shipping
- Locking mechanism offers four options: open, locked, entry-only, and exit-only to manage your pet's access.
- Dimensions: 7.25 x 8 inches, suitable for cats and small dogs under 13 lbs.
- Clear design integrates seamlessly with glass surfaces, ideal for windows and sliding doors.
- Constructed from weather-resistant ABS and UV-stable polycarbonate for durability.
- Includes a door brush strip for quiet operation, minimizing noise to avoid startling pets.
Read More
- Locking mechanism offers four options: open, locked, entry-only, and exit-only to manage your pet's access.
- Dimensions: 7.25 x 8 inches, suitable for cats and small dogs under 13 lbs.
- Clear design integrates seamlessly with glass surfaces, ideal for windows and sliding doors.
- Constructed from weather-resistant ABS and UV-stable polycarbonate for durability.
- Includes a door brush strip for quiet operation, minimizing noise to avoid startling pets.
#4
Free Shipping
- Adjustable height accommodates standard aluminum sliding patio door sizes from 77-5/8" to 80-3/8".
- Durable aluminum construction enhances longevity and offers a modern aesthetic.
- Includes a security lock and a pet access slide for managing animal entry in living spaces.
- Clear tempered glass is pet-safe and preserves the visual appeal of your patio or balcony.
Read More
- Adjustable height accommodates standard aluminum sliding patio door sizes from 77-5/8" to 80-3/8".
- Durable aluminum construction enhances longevity and offers a modern aesthetic.
- Includes a security lock and a pet access slide for managing animal entry in living spaces.
- Clear tempered glass is pet-safe and preserves the visual appeal of your patio or balcony.
#5
5% Off
Free Shipping
- Assembles easily into a full-size pet door for sliding glass doors without cutting or drilling; fits doors 194 to 205 cm tall
- Ideal for apartments or rentals with included installation instructions and hardware
- Durable white aluminum frame with tempered glass for heavy use
- Includes 2 latch kits for enhanced security when sliding door is locked
- Features weather stripping, glass sweep, and slide-in closing panel for weather resistance and to restrict pet access when not in use
Read More
- Assembles easily into a full-size pet door for sliding glass doors without cutting or drilling; fits doors 194 to 205 cm tall
- Ideal for apartments or rentals with included installation instructions and hardware
- Durable white aluminum frame with tempered glass for heavy use
- Includes 2 latch kits for enhanced security when sliding door is locked
Read More
#6
8% Off
Free Shipping
- Our doggy doors are available in two heights, both height adjustable 15cm, dog door size 175-190cm(M)/190-205cm(L)/205-220cm(L-Tall)/220-235cm(XL), thickness 2.032cm(0.8 inch), suitable for sliding door tracks with a width of at least 2.032cm(0.8 inch), please check the size of your glass door before purchasing!
- 【Large Pets door】The dog door flap measures 12.6" x 14.6"(32 x 37 cm) / 12.6" x 17.7"(32 x 45 cm) / 12.6" x 18.9"(32 x 48 cm), providing a spacious and comfortable passage for your pets. Whether you have small or medium-sized dogs, this flap size easily accommodates them.
- 【Adjustable Height】The dog door for sliding glass door supports have two sizes available height adjustment between 68.9" - 74.8" / 74.8" - 80.7" / 80.7" - 86.5" / 86.5" - 92.5" (175 - 195 cm / 195 - 205 cm / 205 -220 cm / 220 - 235 cm), allowing it to fit a variety of door frames. This simplifies the installation process, making it easy for both beginners and experienced users to set up.
- 【Easy Installation】Designed for convenient installation, the pet door for sliding glass door easily slides into your patio door track without the need for tools. It fits most sliding door track heights, making it a perfect solution for renters or anyone seeking a non-permanent option.
- 【Secure Locking Design】When you need to limit your pet's movement, the secure lock design allows you to easily lock the sliding door dog door, preventing unauthorized access. This feature is especially useful during nighttime, when you're away, or in specific situations to ensure your pet's safety at home.
Read More
- Our doggy doors are available in two heights, both height adjustable 15cm, dog door size 175-190cm(M)/190-205cm(L)/205-220cm(L-Tall)/220-235cm(XL), thickness 2.032cm(0.8 inch), suitable for sliding door tracks with a width of at least 2.032cm(0.8 inch), please check the size of your glass door before purchasing!
- 【Large Pets door】The dog door flap measures 12.6" x 14.6"(32 x 37 cm) / 12.6" x 17.7"(32 x 45 cm) / 12.6" x 18.9"(32 x 48 cm), providing a spacious and comfortable passage for your pets. Whether you have small or medium-sized dogs, this flap size easily accommodates them.
Read More
#7
11% Off
Free Shipping
- Microchip or RFID collar tag compatibility for pet identification
- Selective entry system to keep out unwanted animals
- Versatile installation options for doors, windows, or walls
- One-button programming to store up to 32 pet IDs easily
- Long-lasting battery life of up to 12 months, requires 4 AA batteries
- Includes a 3-year warranty for added assurance
Read More
- Microchip or RFID collar tag compatibility for pet identification
- Selective entry system to keep out unwanted animals
- Versatile installation options for doors, windows, or walls
- One-button programming to store up to 32 pet IDs easily
- Long-lasting battery life of up to 12 months, requires 4 AA batteries
- Includes a 3-year warranty for added assurance
#8
Free Shipping
- Microchip and RFID collar tag support for pet identification
- Smart selective entry feature controlled via a mobile app
- Curfew mode for scheduled locking and unlocking of the door
- Accommodates large cats and small dogs for versatile use
- Easy installation in doors, windows, or walls with optional accessories
- Simple one-button programming with capacity for multiple pet IDs
Read More
- Microchip and RFID collar tag support for pet identification
- Smart selective entry feature controlled via a mobile app
- Curfew mode for scheduled locking and unlocking of the door
- Accommodates large cats and small dogs for versatile use
- Easy installation in doors, windows, or walls with optional accessories
- Simple one-button programming with capacity for multiple pet IDs
#9
Free Shipping
- Prevents unwanted strays from entering by recognizing your cat's microchip or Cat Mate ID Disc.
- Simple one-button programming with LED indicator for easy registration of your cat's microchip.
- Durable construction with weatherproof and draft-resistant features for energy efficiency.
- Fits various door types, including metal up to 35 mm thick, and compatible with wall and glass installations with an adapter kit.
- Established in 1986, Pet Mate is known for reliable pet supplies, including cat flaps and feeders.
Read More
- Prevents unwanted strays from entering by recognizing your cat's microchip or Cat Mate ID Disc.
- Simple one-button programming with LED indicator for easy registration of your cat's microchip.
- Durable construction with weatherproof and draft-resistant features for energy efficiency.
- Fits various door types, including metal up to 35 mm thick, and compatible with wall and glass installations with an adapter kit.
Read More
#10
Free Shipping
- Ideal for small to medium-sized cats
- 4-way locking mechanism for versatile usage: in/out, in only, out only, or locked
- Constructed from highly durable super-tough polymer
- User-friendly and tamper-proof design
- Operates silently for a discreet experience
Read More
- Ideal for small to medium-sized cats
- 4-way locking mechanism for versatile usage: in/out, in only, out only, or locked
- Constructed from highly durable super-tough polymer
- User-friendly and tamper-proof design
- Operates silently for a discreet experience
Anti Mouse Cat Flap
See All
Cat Flap For Composite Door
See All
Cat Flap Microchip Activated Wooden Door
See All
