Your external door can be more than just an entrance; it can be a convenient access point for mail, furry friends, and fresh air. And with pet doors more important than ever in a world of pet-friendly ‘barkitecture’ there’s never been a better time to make the change.

But adding letterboxes, cat flaps, and doggy doors requires careful planning and installation. That’s why we’ve created this guide to equip you with the knowledge you need to transform your door safely and effectively; featuring video tutorials and step by step instructions to help keep things simple.

Is it hard to install a pet door?

A simple cat flap with a template and basic frame will be much easier to install than a large, programmable doggy door. If you’re comfortable using tools like a drill, jigsaw, and level, you might find the process manageable. However, for trickier installations or if you’re unsure about your skills, hiring a professional to install pet doors is highly recommended.

Material Matters
The installation process will vary depending on your door material. Solid wood doors offer the most flexibility, while composite or metal doors might require specific drill bits or techniques. Consult your product manuals and door manufacturer’s recommendations.

Safety First
Ensure the chosen location for your pet door or letterbox doesn’t compromise the structural integrity of the door. Avoid cutting into reinforcement bars or weakening crucial hinges.

Gather Your Kit
You’ll likely need a spirit level, tape measure, pencil, drill with various drill bits, jigsaw or reciprocating saw (depending on material), screwdriver, and appropriate fixings (usually provided with the product).

Discover how to choose external doors with confidence by diving into our dedicated article which includes information on the most secure, most weatherproof and best value exterior doors.

Can you add a doggie door to an existing door?

If you need to work with the doors you already have, solid wood doors offer the most flexibility for installation. But while some doors are DIY-friendly, complex installations might be best left to professionals.

Looking to buy new external doors? Composite doors are becoming increasingly popular due to their durability and weather resistance. Especially for doggy doors, don’t forget to consider features such as locking mechanisms and reinforced frames to deter intruders. Look for flaps with insulation or door seals to minimise any draughts.

If you’re sure about installing pet doors, it might be best to get a quote for made to measure doors which are crafted bespoke to your vision and needs.

Did you know? Our team can draw up a design featuring a pet flap or a pet door insert which leaves space for what you need. We can also find a local door installer from our list of approved and trusted tradespeople for a hassle-free installation process.

Read our article on how to find a joiner to fit doors for more information and contact us now to get started.

Can you install a pet door in a glass door?

You can definitely consider sliding doors or bifold doors while still prioritising your pets. These work great as both an spotlight-stealing design feature and a way to easily access (and see what’s happening in) your garden.

The great thing is, these types of external glass door have a smoother opening and won’t suddenly slam shut, making them safer for furry friends and small children. When you order with us, you can also request a pet door insert; giving your pets a dedicated route to the great outdoors. And all the freedom and fresh air that comes with it. Nice.

Browse our collection of sliding doors and bifold doors and learn about the latest patio door trends for some fresh inspiration before you buy pet doors.

How much does it cost to install a pet door UK?

You’re looking at prices from around £80 for a simple cat flap to £300 maximum for a large or complex doggy door, including any installation or smart home tech set up.

Sliding glass door pet doors with pre-made panels usually involve minimal cutting and have lower installation costs. Cutting into a wall or a complex door structure will likely cost more.

Labour rates can vary depending on your area. Getting quotes from local handymen or pet door installers will give you a more accurate idea of costs in your region.

How to Fit a Letterbox

Measure Up

Mark the desired location for the letterbox, ensuring it’s centred and at a comfortable height. Use a spirit level to ensure straight lines.

Template Magic
Most letterboxes come with a template. Secure your letterbox template to the door with masking tape and mark the cutting lines.

Precise Cuts
Following the markings, carefully drill pilot holes at each corner of the designated area. Use a jigsaw or reciprocating saw to cut out the opening, ensuring clean and straight edges.

Secure and Seal
Following the manufacturer’s instructions, fix the letterbox into the opening. Apply weatherproof sealant around the edges to prevent leaks.

How to Fit a Cat Flap

Template Time
Similar to the letterbox, most cat flaps come with templates. Use them to mark the cutting location on your door, ensuring it’s at an appropriate height for your feline friend.

Drilling Drill
Drill pilot holes at the corners of the marked area. Wear safety goggles and keep the area clear.

Jig It Out
Using a jigsaw, carefully cut out the opening for the cat flap, ensuring it’s slightly larger than the flap itself to allow for proper fitting.

Feline Friendly
Following the manufacturer’s instructions, secure the cat flap into the opening. Ensure the flap swings freely and the locking mechanism functions properly.

How to Fit a Doggy Door

Measure Twice, Cut Once
Doggy doors come in various sizes. Measure your dog’s height to determine the appropriate flap height. Mark the cutting location on the door, ensuring it’s centred and avoids structural elements.

Template (Optional)
Some doggy doors may have templates. If not, carefully measure and mark the cutting area directly on the door.

Power Up
Similar to the cat flap, drill pilot holes and use a jigsaw to create the opening. Ensure it’s large enough for your dog to pass through comfortably.

Secure and Sturdy
Following the manufacturer’s instructions, securely fix the doggy door frame into the opening. Ensure the flap swings freely and the locking mechanism functions properly.

Final Touches For Best Results

Safety first
Wear safety glasses and gloves while using power tools. Keep pets and little ones away from the area.

Double-check measurements
Mistakes can be costly, so ensure all measurements are accurate before cutting.

Weatherproofing is key
After installation, apply sealant around the edges of pet doors and letterboxes to prevent draughts and leaks.

Cover all bases and discover how to improve front door security with essential tips from our dedicated article.

Enjoy the Convenience of a Customised Front Door

With careful planning and execution (and perhaps a little help from an experienced professional) your transformed exterior doors can provide added functionality to you property. A great way to improve your furry friend’s freedom, or simply make receiving mail a breeze.

Browse our collection today and buy external doors online or request a quote for external doors with a pet door built in.