There is a particular sound every cat owner learns to dread: the insistent 3am meow at the bedroom door, or the scratch-scratch-scratch of a cat who has decided the back door simply must open right now. A good cat flap hands that decision back to your cat, so they can come and go as they please without turning you into a full-time doorkeeper.
But not all cat flaps are equal. The right one keeps next door’s tom and the neighbourhood foxes firmly outside while letting your own cat glide through, and the best modern flaps read your cat’s existing microchip so there are no collars or magnets to lose. This guide covers six of the best cat flaps available in the UK in 2026, from clever microchip models to simple budget options, plus everything you need to know before you cut a hole in your door.
Quick Comparison: Best Cat Flap UK 2026
| Product | Best For | Price Range | Rating |
| SureFlap Microchip Cat Flap | Best overall | £60–£75 | ★★★★★ |
| SureFlap Microchip Cat Flap Connect | Best app-connected flap | £100–£130 | ★★★★★ |
| PetSafe Microchip Cat Flap | Best value microchip | £40–£50 | ★★★★☆ |
| Cat Mate Elite Microchip | Best with curfew timer | £60–£70 | ★★★★☆ |
| PetSafe Staywell Original 2-Way | Best budget (manual) | £12–£18 | ★★★★☆ |
Individual Product Reviews
1. SureFlap Microchip Cat Flap
Best for: most cats and most homes — the all-round microchip flap to beat.
The SureFlap Microchip Cat Flap is the model that made microchip flaps mainstream, and it remains the benchmark in 2026. It reads your cat’s existing identification microchip (or an included RFID collar tag) and unlocks only for the pets you have programmed in, so intruder cats are locked out automatically. Setting up is refreshingly simple: hold the button, let your cat poke their head through once, and that chip is stored in memory.
It stores up to 32 pets, which is far more than most households will ever need, and it runs on four AA batteries that typically last around six to twelve months. The four-way manual lock lets you set it to in-only, out-only, fully open or fully locked, which is handy around vet visits or fireworks night.
What we like: reliable chip reading, generous 32-pet memory, easy programming, and a curfew-friendly manual lock.
Worth knowing: it is battery only, and very large cats can find the flap opening a little snug — measure your cat first.
Specifications:
- Opening size: roughly 14cm wide x 12cm tall
- Microchip compatible: all common 9, 10 and 15-digit chips, plus included collar tags
- Pet memory: up to 32 cats
- Power: 4 x AA batteries (typically 6–12 months)
- Fits: doors, glass, walls and uPVC panels (adaptors sold separately)
- Available on Amazon UK, Pets at Home and Zooplus UK
2. SureFlap Microchip Cat Flap Connect
Best for: owners who want to track comings and goings from their phone.
The Connect version takes the trusted SureFlap mechanism and adds smart-home brains. Paired with the Sure Petcare Hub, it links to an app so you can see when your cat last came in or went out, set lock and unlock schedules remotely, and get a notification if your cat has not been home for a while. For nervous owners of an adventurous cat, that peace of mind is the whole point.
The core hardware is the same dependable microchip flap, so reliability is excellent. The app lets you set an automatic curfew — for example, locking the flap to in-only at dusk so your cat is safely home overnight — without you having to remember to press a button.
What we like: app notifications, remote and scheduled locking, and the same proven SureFlap reliability underneath.
Worth knowing: it needs the separate Hub to work, and the smart features are the main reason to pay the premium — if you only want a flap, the standard model is better value.
Specifications:
- Opening size: roughly 14cm wide x 12cm tall
- Smart features: app tracking, notifications, remote and scheduled locking (Hub required)
- Pet memory: up to 32 cats
- Power: 4 x AA batteries; Hub is mains powered
- Fits: doors, glass, walls and uPVC panels (adaptors sold separately)
- Available on Amazon UK and Pets at Home
3. PetSafe Microchip Cat Flap
Best for: owners who want microchip security without the top-tier price.
PetSafe’s microchip flap (sold under the Staywell name) offers the headline feature most people are really after — selective entry that reads your cat’s chip — for noticeably less than the premium models. It learns up to 40 microchip codes, which is the largest memory in this round-up, making it a quietly good choice for multi-cat households.
In day-to-day use it does the important job well: your cats get in, strays stay out. The flap has a four-way manual lock and a sturdy, draught-reducing seal. The chip reader can be a fraction slower to wake than the SureFlap, but for most cats the difference is barely noticeable.
What we like: strong value, 40-pet memory, four-way locking and a good weather seal.
Worth knowing: it controls entry by chip but the exit is open to any cat inside, so it is about keeping intruders out rather than keeping your cat in.
Specifications:
- Opening size: roughly 14cm wide x 12.5cm tall
- Microchip compatible: all common 9, 10 and 15-digit chips
- Pet memory: up to 40 cats
- Power: 4 x AA batteries
- Fits: doors, glass and walls (tunnel extensions available)
- Available on Amazon UK, Pets at Home and Zooplus UK
4. Cat Mate Elite Microchip Cat Flap
Best for: households that want a built-in curfew timer without an app.
The Cat Mate Elite (made by Closer Pets) is the standout choice if you like the idea of a timed curfew but would rather not bother with hubs and smartphones. It has a built-in programmable timer that can lock and unlock the flap automatically at set times — perfect for keeping your cat in overnight when road and wildlife risks are highest.
It reads your cat’s microchip and stores up to 30 pets, and the clear LCD panel shows battery status and the current lock setting at a glance. A useful touch is the optional low-battery and ‘cat present’ indicators, so you are never caught out by flat batteries.
What we like: genuine timer-controlled curfew with no app needed, clear display, and reliable chip recognition.
Worth knowing: programming the timer takes a few minutes with the manual to hand, and the styling is a little more utilitarian than the SureFlap.
Specifications:
- Opening size: roughly 12cm wide x 12cm tall
- Microchip compatible: all common 9, 10 and 15-digit chips
- Pet memory: up to 30 cats
- Special feature: programmable lock/unlock timer with LCD display
- Power: 4 x AA batteries
- Available on Amazon UK and selected UK pet retailers
5. PetSafe Staywell Original 2-Way Cat Flap
Best for: budget-conscious owners, single-cat homes and outbuildings.
Sometimes you do not need electronics at all — you just need a sturdy, draught-resistant flap that opens and shuts. The PetSafe Staywell Original 2-Way is the long-serving budget classic, costing a fraction of the microchip models and fitting almost anywhere. It has a simple two-way lock so you can set it to open or fully closed.
It is an excellent choice for sheds, garages and utility rooms, or for any home where intruder cats are not a problem. The transparent flap and brush-style draught seal keep things tidy, and with no batteries to replace it is genuinely fit-and-forget.
What we like: very cheap, no batteries, easy to fit and reliably weatherproof for the price.
Worth knowing: it does not read microchips, so any cat can push through unless you upgrade to a magnetic or chip model.
Specifications:
- Opening size: roughly 14cm wide x 12cm tall
- Lock type: 2-way manual (open / locked)
- Power: none required
- Fits: doors, glass and walls (liners available for thicker walls)
- Available on Amazon UK, Pets at Home and most UK DIY stores
6. SureFlap DualScan Microchip Cat Flap
Best for: multi-cat homes that need to control which cats go out.
If you have one cat who must stay indoors — perhaps recovering, elderly or simply a flight risk — and another who roams freely, the SureFlap DualScan is purpose-built for that situation. Uniquely, it reads microchips in both directions, so you can programme each cat individually to be allowed out, kept in, or both.
It carries the same dependable SureFlap reliability and 32-pet memory as the standard model, with the added intelligence to manage a mixed household. The manual override lock still lets you set in-only, out-only or fully locked for everyone at once.
What we like: per-cat entry and exit control, scans in both directions, and the trusted SureFlap build.
Worth knowing: it is one of the pricier flaps here, and that two-way scanning is overkill if all your cats share the same freedom.
Specifications:
- Opening size: roughly 14cm wide x 12cm tall
- Special feature: programmable in/out permissions per cat (bi-directional scanning)
- Pet memory: up to 32 cats
- Power: 4 x AA batteries
- Fits: doors, glass, walls and uPVC panels (adaptors sold separately)
- Available on Amazon UK and Pets at Home
Cat Flap Buying Guide
What to Look For When Buying a Cat Flap
The biggest decision is whether you need selective entry. If you live somewhere with lots of cats around, a microchip flap that only opens for your own cat is worth every penny — it stops strays raiding the food bowl and prevents the territorial stress of an intruder in the house. If that is not a concern, a good manual flap may be all you need.
Beyond that, think about the lock options (a four-way lock is far more flexible than two-way), the weather seal for draughts, battery life on electronic models, and crucially the flap opening size relative to your cat. Larger breeds such as Maine Coons can struggle with standard openings.
Types of Cat Flap Explained
Manual flaps are the simplest and cheapest: they open for any animal and lock with a slider. Magnetic and infrared flaps unlock only when they detect a magnet or sensor on your cat’s collar, which keeps most strays out but relies on your cat keeping the collar on.
Microchip flaps are the modern favourite. They read your cat’s existing identification chip — no collar required — and unlock only for registered pets. Smart or app-connected flaps add tracking, notifications and remote locking on top, while dual-scan models can control entry and exit separately for each cat.
Size Guide and Fitting
Measure your cat before you buy. Check the width across the shoulders and, with your cat standing, the height from the floor to the top of the shoulders — the flap opening should comfortably clear both. As a rough guide, most standard flaps suit cats up to around 7kg, while very large or broad cats may need a model with a bigger opening or a small pet door.
Cat flaps can be fitted into wooden and uPVC doors, glass (which needs a glazier to cut a round hole), and walls (which need a tunnel extension or liner). Position the bottom of the flap roughly level with the base of your cat’s chest when standing, usually about 15cm from the floor.
- Small/slim cats: standard opening is fine
- Average adult cats (up to ~7kg): standard opening suits most flaps
- Large breeds (Maine Coon, Ragdoll, Norwegian Forest): choose the largest opening or a pet door
- Glass doors: order the correct adaptor and use a professional glazier
- Walls: budget for a tunnel extension to bridge the wall thickness
How Much Should You Spend?
- Budget (under £20): a simple manual flap such as the PetSafe Staywell Original 2-Way, ideal for outbuildings or stray-free areas
- Mid-range (£40–£75): microchip flaps including the PetSafe Microchip, SureFlap Microchip and Cat Mate Elite — the sweet spot for most homes
- Premium (£100+): smart and dual-scan models such as the SureFlap Connect and DualScan, for app control or per-cat permissions
Frequently Asked Questions
Do microchip cat flaps work with any microchip?
Yes — the leading microchip flaps read all the common chip standards used in the UK (9, 10 and 15-digit chips), so your cat’s existing vet-implanted chip will almost always work. If you are unsure, your vet can tell you the chip number and type at a routine appointment.
Can I fit a cat flap into a glass or uPVC door?
You can, but it needs the right approach. For double glazing a glazier cuts a circular hole and fits the flap with a special adaptor; for uPVC doors there are panel adaptors available. Wooden doors are the easiest DIY job, needing only a jigsaw and a steady hand.
Will a cat flap let in draughts or other animals?
A quality flap with a good brush or magnetic seal keeps draughts to a minimum. Microchip and magnetic flaps lock out other cats, though a determined fox cannot be read by a chip — for fox-prone areas, set a dusk-to-dawn curfew using a timer or app model.
How long do the batteries last in an electronic cat flap?
It varies with use, but most microchip flaps run for around six to twelve months on a set of AA batteries. Models with an LCD display or low-battery indicator will warn you before they run flat, so your cat is never left locked out.
How do I train my cat to use a new flap?
Prop the flap fully open at first so your cat can see through and walk in and out freely. Tempt them with a treat or favourite toy on the far side, then gradually let the flap rest closed over a few days. Most cats master it within a week.
Final Verdict
For the vast majority of UK cat owners the SureFlap Microchip Cat Flap is the best all-round choice in 2026: it reads your cat’s existing chip, locks out intruders, stores up to 32 pets and simply works, day in, day out. If you want phone notifications and remote curfews, step up to the SureFlap Connect; if budget is tight or you are fitting a shed, the PetSafe Staywell Original 2-Way does the basic job for under £20.
