Microchip Dog Door Fitting
A microchip dog door only unlocks for your dog — no foxes, no strays, no next door's Labrador. We size it to your breed and fit it properly into uPVC, composite or glass.
Why Microchip Rather Than Manual
A manual dog door is a hole with a flap on it — anything strong enough to push can come through, and in most gardens that eventually means a fox. A microchip pet door stays physically locked until a registered chip is within range.
It also solves the multi-pet household: you can give the dog outdoor access while keeping an indoor-only cat, or a recovering pet, safely inside.
- SureFlap microchip pet door range fitted
- Microchip and RFID collar-tag locking options
- uPVC, composite, wooden and glass panels
- Aperture positioned for panel strength
- Breed sizing advice before you buy
- 3-year workmanship guarantee
Dog Door Sizes by Breed
| Door size | Typical breeds | Flap opening | Locking |
|---|---|---|---|
| Small microchip pet door | Jack Russell, Westie, Dachshund, Miniature Poodle | ~25 × 30cm | Microchip / RFID collar tag |
| Medium pet door | Cocker Spaniel, French Bulldog, Beagle, Border Collie | ~28 × 38cm | Microchip (smaller breeds) or collar tag |
| Large pet door | Labrador, Golden Retriever, Boxer | ~38 × 45cm | Magnetic collar tag or manual 4-way |
| Extra large pet door | German Shepherd, Dobermann, Great Dane | ~45 × 55cm+ | Manual 4-way locking |
Sizes are indicative — always measure your dog. Our dog breed size guide lists recommended openings breed by breed, or see our general dog door installation service.
Microchip Dog Door FAQs
Our Installation Services
Dog Door Guides
Best Smart & Electronic Dog Doors USA 2026: Microchip, Collar-Key & App-Controlled
Smart dog doors only open for your pet. Microchip doors like the SureFlap Pet Door are best for small dogs and cats. For medium and large dogs, a collar-key electronic door (such as PetSafe's Electronic SmartDoor) or a powered door with a sliding panel is the better choice.
Buying GuideBest Cat Flap for Large Cats (2026): Maine Coons, Bengals, Ragdolls & British Shorthairs Tested
The best cat flap for large cats is the SureFlap Microchip Pet Door — a 170 × 178mm opening that suits cats up to 8kg, including Maine Coons, Ragdolls and Bengals. Below: the full 2026 size comparison table, breed-by-breed measurements, fitted prices and how to measure your cat before you buy.
Buyer's GuidesBest Cat Flap for Large Cats: Size Guide for Maine Coons, British Shorthairs & Ragdolls
Standard cat flaps are built for average cats. If you own a Maine Coon, British Shorthair, Ragdoll or any chunky breed, the flap needs to be bigger. Here's how to choose the right size.
Cat CareNew Kitten Checklist UK 2026: What You Actually Need (and What to Skip)
For day one you need six things: a carrier, two litter trays, food and water bowls, the food the breeder was using, a bed, and a scratching post. Everything else can wait. Budget roughly £250–£400 on setup and £900–£1,200 for the first year including vaccinations, neutering, microchipping and insurance. A cat flap comes later — after vaccinations, neutering and four weeks settling indoors.
Get a Free Dog Door Quote
Tell us your breed and send a photo of the door — we'll recommend the right size and price it within 24 hours.