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Best Cat Flaps for 2020

Outdoor cats love exploring, but you can’t always be there as and when they decide they want to come inside for a bit of comfort and relaxation.

A good option is to install a cat flap. Not only will your cat be able to come and go as they please, but you won’t have to keep a beady eye out for them either. There is no need to worry about uninvited guests either, as many these days have microchips and timers which will ensure Fluffy from next door isn’t found kipping on your bed when you get home from work.

Whatever your particular needs, we have reviewed the ten best cat flaps below, each being easy to set up and use according to your needs.

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    Our Top Picks

    Image Product Details
    SureFlap Cat Flap with Microchip Identification
    • Four-way opening
    • Compatible with all microchips worldwide
    Check Price
    PetSafe Staywell Deluxe Magnetic Cat Flap
    • Four-way control
    • Cats up to 7kg
    • Can be installed into any surface
    Check Price
    Petsafe Staywell Aluminum Pet Door
    • Magnetic seal
    • Soft flap
    • Choice of sizes
    Check Price

    Top 10 Best Cat Flaps Reviewed

    1.
    SureFlap Cat Flap with Microchip Identification

    Microchip identification flaps are often thought of as the best option for keeping unwelcome moggies out of your home.

    This award winner is compatible with veterinary microchips and RFID collar tags, so you can choose just how your kitty is chipped. If you have an existing cat flap, it has been designed to act as a drop-in replacement for easy switching to the new technology.

    This option can be installed within doors, in walls or in windows, with the appropriate accessories all being available. There is a four-way manual lock option so you can choose whether your cat is only allowed in, out, both or none at certain times of the day.

    Battery power means it can also be installed anywhere, and each set should last for about one year so you don’t have to panic about Socks being left out in the cold all of a sudden. It takes just one press of a button to programme your cat’s microchip to the flap, and it is stored in the memory forever.

    Features

    • Four-way opening
    • Compatible with all microchips worldwide

    Specifications

    • Dimensions: Flap 14.2 x 12cm/Overall 21 x 10.2 x 21cm
    • Number Of Cats: 32
    • Power: 4 x AA Batteries

    2.
    PetSafe Staywell Deluxe Magnetic Cat Flap

    Featuring a magnetic locking system which allows your cat to explore freely, this door also features four-way locking in case you want a bit of restriction in place.

    With a draught excluder, it won’t blow open and let all that cold winter air into your home. There is a three-step installation guide, and it is suitable for any wall, window or door depending on preference as there is a tunnel extension available.

    You get one collar and magnetic cat flap key provided, but they are available to buy separately if you have more than one cat or are particular about their collar. The cat will have to be quite close to the flap in order for it to open which may just take a bit of work with timid felines.

    There is the choice of white or woodgrain to match your door, and it doesn’t look too out of place either.

    Features

    • Four-way control
    • Cats up to 7kg
    • Can be installed into any surface

    Specifications

    • Dimensions: Flap 13.1 x 15.2cm/Overall 10.6 x 24.3 x 25.8cm
    • Number Of Cats: Unlimited

    3.
    Petsafe Staywell Aluminum Pet Door

    One of the more solid on our list if you are looking for something longer term, this cat door is constructed from aluminium frame and a sturdy flexible flap to limit the damage which can be done over time.

    There is a magnetic strip at the base of the flap which firmly shuts it until it is forced open, which will limit the amount of weather which can enter your home. You also get a closing panel, which offers even firmer weather resistance and also stops the flap opening entirely so you can limit the movements either in or out.

    This flap is available in small, medium, large or extra-large, the latter two are primarily for dogs but you have a choice depending on how large your cat is and the weight limit. Because of the magnetic strip, there is a slight click every time your pet goes through the door, which acts as a good signal to their comings and goings.

    Features

    • Magnetic seal
    • Soft flap
    • Choice of sizes

    Specifications

    • Dimensions: Small Flap 20.7 x 13.6cm/Overall 29.8 x 20cm
    • Number Of Cats: Unlimited

    4.
    PetSafe Staywell 4 Way Locking Classic Cat Flap

    A flexible four-way control gives your cat limited freedom to explore, for when you want to try and reign them in a little bit. Say they keep bringing you little ‘gifts’ so you want to let them in manually, or don’t want them going out after dark.

    Because it is manual, you don’t have to worry about your cat having a chip or key on their collar to gain access. There is a tunnel included with the purchase whether you need it or not, which is good for thicker doors and can be cut down to match the size.

    It takes a little bit of force to get it open, which is good for keeping the weather out but could be trickier for gentle or nervous cats.

    Features

    • Easy to install
    • Includes tunnel for thicker applications

    Specifications

    • Dimensions: Flap 13.3 x 16.2cm/Overall 223 x 223 mm
    • Number Of Cats: Unlimited

    5.
    Cat Mate Large 4-Way Cat Flap

    Some cats simply need a bigger door to comfortable go in and out, whether it be fur or skin getting in the way.

    This is a larger door, with four-way locking to help when you need to limit the comings and goings of Fluffy. At the bottom is a brush strip, which minimises the noise of the flap and also reduces the amount of cold air which can come in or heat which can escape. For some, this will be better than a magnetic strip which is usually on flaps.

    The sound of it opening and closing is pretty much non-existent, which is good for those of a nervous disposition. As well, the larger size isn’t just made for larger cats – if yours is nervous and doesn’t like to feel claustrophobic, it could help with making them more confident going in and out.

    It is easy to install, with each packet including a template as a guide. Primarily designed for doors and thin panels, it won’t necessarily fit walls and windows but is good in uPVC or wood.

    Features

    • Bigger size
    • Silent operation
    • Solid build

    Specifications

    • Dimensions: Flap 21 x 22.7cm/Overall 23.5 x 5.7 x 25.4cm
    • Number Of Cats: Unlimited

    6.
    SureFlap Microchip Cat Flap

    Smart technology has taken over homes up and down the country, and if you want to use your phone to also control your cat’s movements, this microchip model could be ideal.

    It reads the chip to keep uninvited guests out, but this isn’t all the hub can do. It can monitor their activity, and notify you of any changes in their behaviour such as a difference in timings or spending longer outside. You also get intruder alerts when another animal has attempted to get in, which could signal the behaviour patterns.

    Through your phone and the Sure Petcare app, you will get a notification every time they enter or leave the house, and you can lock or unlock the flap remotely and set curfew times. This is great for Bonfire night or around New Year if you are usually quite flexible but want to keep them safe when you’re out.

    If you have more than one cat, DualScan technology lets you set exit permissions for each cat, and up to 32 are remembered. You can fit it in a door, wall or window, and the batteries should last around six months.

    What happens if the internet goes down? You can change settings manually, and it will remember the last known settings too.

    Features

    • Controlled through an app
    • Gives you extra information
    • Manual control as a backup

    Specifications

    • Dimensions: Flap 14.2 x 12cm/Overall 18 x 23 x 25 cm
    • Number Of Cats: 32
    • Power: 4 x AA Batteries

    7.
    Catmate 4 Way Glass Fitting Cat Flap

    Determined that your kitty will only be allowed in through the back patio door, conservatory or through the kitchen window after they’ve climbed on the windowsill? You will need a flap appropriate for installing in the glass.

    While there are a few out there which can be installed pretty much in any surface, a dedicated glass fitting cat flap will be thinner and cause less damage to the structure of the glass. It is good for panes up to 32mm thick so can fit in most double glazing, and the action is silent for little disturbance.

    The flap is draught, water and weatherproof. There’s a brush sealed flap with magnetic closure and it is transparent. This magnet means the cat has to push against it to open, so a bit of wind won’t affect it.

    A sliding interlock control for the four-way system means it can’t easily be interfered with, and the overall design ensures it looks good too.

    Features

    • Self-lining to protect glass
    • Sturdy transparent flap

    Specifications

    • Dimensions: Flap 14.5 x 14.5cm/Overall 24.8cm x 3.8cm x 27cm
    • Number Of Cats: Unlimited

    8.
    Tomsgates Nipper Premium Wooden Cat Flap

    A wooden cat flap is probably not your first thought when looking at which to buy, but hear us out.

    The wood makes this flap strong, stable and a lot more attractive than your typical plastic variations. A magnetic lock means it is completely sealed when not in use, so it won’t let through any air or draughts or blow open. There’s also a double rubber seal for extra protection against rain, and the lock also makes it silent so you won’t get loud clinking sounds when Fido returns home at 3 am.

    Along the inner side is a solid shutter with steal locks which you can use if you’re not at home or overnight if you don’t want to risk your cat escaping or want to protect your home from possible burglaries.

    As it is wood and crafted by hand individually, it is the most expensive on our list, but if you have the perfect front door, garage door or brickwork and don’t want anything unsightly then it could be well worth the investment.

    Features

    • Three colour choices/finishes to choose from
    • 100% sustainable materials
    • Produced in EU by licensed carpenters

    Specifications

    • Dimensions: Flap 20 x 24cm/Overall 37.8 x 34 x 17 cm
    • Number Of Cats: Unlimited

    9.
    PetSafe Staywell Original 2 Way

    The original method, and still just fine for many cats out there who don’t require limited freedom of fancy locks.

    It can either be locked or open both ways, so there is still a bit of restriction there if needed. To lock it, slide down the closing panel which reduces the wind which can get in as well as limiting the movement of the flap.

    You can purchase it in three different sizes, small medium and large, depending on just how big and heavy your cat is. Overall, it is a rigid durable build which should remain weatherproof and resistant to any rather forceful pushy cats.

    Features

    • Three size choices
    • Able to fully close

    Specifications

    • Dimensions: Flap 17.5 x 15.2cm/Overall 23.6 x 19.6cm
    • Number Of Cats: Unlimited

    10.
    LYNX Cat Door for Pets

    More of a novelty pick if you like the element of fun and quirkiness in your home. This flap looks like a cat, and as Lynx says in the description, “Is your cat square? So why use a boring square cat door?”. They have a point.

    It is more designed to be used on the interior of your home, perhaps leading from the kitchen to the garage so they can get access to their litter tray. This is opposed to fitting to a front or back door.

    You can buy it in white or black and it can be locked four ways to limit the coming and going of the cat. This could be good if you keep their food bowl in the garage to stop the dog eating it all but also need to stop the cat from overeating.

    There are some cat training tips in the booklet included which is a really nice touch, in case you need to get your cat used to the flap.

    Features

    • Different design
    • Easy installation

    Specifications

    • Dimensions: Flap 14.9 x 19cm/Overall 37.2 x 29 x 10.6 cm
    • Number Of Cats: Unlimited

    Buying Guide

    Types Of Cat Flap

    Microchip

    This reads the microchip or infrared sensor on your cat’s collar or implant before opening. You need to register the chip to the flap, so only your chosen cats will be able to come and go. These are often the most popular and recommended

    Four-Way Magnetic

    Similar to a microchip, except it only needs a magnetic strip on the collar. You can choose to only let your cat in or out rather than both ways, and it limits strays, but any cat with a magnetic collar can still enter. There is also a risk they could lose the collar key

    Two-Way Manual

    These open and close as your cat pushes against it, so it can come and go whenever. You can lock it when you don’t want it in action. Great if you don’t want to have to rely on technology for your cats or have any ongoing expense, but any small animal or cat could enter your home

    Four-Way Manual

    The same as a two way, but with more locking options. You can choose to only allow your cat out when it wishes or in, which is good if you’ve been getting visitors. Clever cats could learn how to open them the opposite way however

    Smart

    Similar to the microchip options, except you can also usually control it from an app on your phone for further monitoring. This helps if you want to set timers

    How To Buy The Best Cat Flap

    There are a few things you need to take into consideration before you can go ahead and jump right in, as these will change from home to home.

    • Number Of Cats – Security cat flaps, such as those with a microchip, often limit the number of cats they can let come and go. While most are good for up to 50, which is more than enough for normal homes, you don’t want to get caught out with too few
    • Timers – Kitty scared of the dark, or maybe you prefer to keep them in when night falls in case of fireworks or other issues? Setting a timer will ensure that once they are in, they can’t go back out again, no matter what their chip says. This could be easier than setting manual locking
    • Reliability – Think about the likelihood that your cat will cooperate with the method you choose. If you opt for a magnetic collar, you need to ensure they won’t use the key part of the system from their collar. Cats who often come home without a collar could be better with a chip, and ones which come and go in the early morning and wake you up may be better with a limited option

    Installing A Cat Flap

    The majority will come with a cut-out guide which will allow you to get the general shape and size of the flap on the door before cutting out. Then, you should use a jigsaw to cut the space. It is usually just a case of then screwing the frame to the door and ensuring there are no gaps around the edges.

    Of course, this will either sound daunting to you or a breeze. If the former, always get in a professional as it could be an expensive mistake otherwise. Glass and brick can be more complicated – read below for some guidance.

    Other Buyers Ask...

    Where Can I Put A Cat Flap?

    Most are fitted to doors of varying thicknesses, whether it be a front or back door. This can be wooden, metallic or uPVC, and there are tunnels available if you have a slightly thicker door than usual.

    If in a door, it should be placed at the opposite side to the handle, so burglars can’t use it to gain access to your locks. There are also options out there which are suitable for walls and windows, however, but they require a lot more work and you have less choice.

    For a window, you will need a special flap which can be installed in glass, which is usually thinner than door flaps. They often have to be fitted at the same time as a new pane of glass is placed into the door or window as it is hard to cut into an existing piece, which could be expensive and limits when you can get one. It is the best idea if your cat currently uses a window for access and you don’t want to confuse them though.

    For walls, you will need to buy a cat flap which has a compatible wall liner available or a tunnel. This is basically a thicker, more substantial surrounding for the flap which sits in brick. You’ll have to consult a builder to ensure that the flap is placed somewhere which is suitable, and you’ll have to understand it is quite a big change to make to your home. Most people will fit these in garages, or the brick part of conservatories if at all.

    Can Cat Flaps Injure My Cat?

    It is very unlikely. The actual flap part of the build is very lightweight, so even if they are a bit slow getting through, it won’t damage their back or tail.

    There are some soft door options available, which could help acrobatic cats or those who come through the flap at full pelt, but they are often unnecessary.

    Do Locking Cat Flaps Always Work?

    You don’t want Socks to let himself out during certain times of the day, so you lock the cat flap. An hour later, he is staring at you through the kitchen window outside.

    Determined cats may find a way to open the door when it is locked. A very hard push or a nifty paw under the flap could do the trick so they aren’t always foolproof, but of course, it depends on your cat’s personality.

    If you really are concerned about this, spending that bit more on a really tough, locking door could work. Or, opt for one with physical locking clips or a closing panel. The only issue is that this usually means they can either be opened or closed two ways.

    Are There Any Alternatives To Cat Flaps?

    Not up for making these massive changes to the structure of your home, or maybe you live in rented accommodation? There are a couple of other options out there which could suit but they have their limitations.

    Purchasing a LockLatch™ could mean you can leave any window or door open, yet locked. They can’t be opened further or closed accidentally. Of course, this means a very airy room which could be bothersome out of summer.

    Other than that, you may have to just let them in and out manually. Buying an outdoor cat house could help here, as it will give them somewhere to shelter from the weather until you get home. You may choose to train them to go in and out at certain times.