Pet Door Security: How to Keep Intruders Out While Letting Your Pet In

Pet doors are brilliant for giving your furry friend freedom — but they can also become an entry point for uninvited guests if not chosen carefully. From nosy neighbourhood cats to wild animals (and yes, even burglars), here’s how to keep your pet door secure without sacrificing convenience.

Common Pet Door Security Concerns

• Stray animals sneaking in
• Other pets triggering magnetic flaps
• Food theft from bowls inside
• Potential home access for intruders

While the risk of actual break-ins through a pet flap is low, the discomfort of having unwanted animals inside your home is very real.

Security Features to Look For

• Microchip or RFID Technology: Only pets with registered microchips or tags can unlock the flap, keeping out all others — including neighbour cats and wildlife.
• Manual Locking Mechanisms: Many pet flaps come with 2-way or 4-way locks. These allow you to:
  • Let pets in only
  • Let pets out only
  • Lock completely
  • Allow free movement both ways
• Curfew Mode & App Control: Advanced models include scheduling and remote locking, perfect for nighttime or when you're away.
• Double Flaps or Brush Seals: These insulate better and make it harder for animals to nose their way in.

Where You Install It Matters

• Back doors or side panels are better than visible front doors
• Raised height: Keep flaps 15–20 cm off the ground to prevent wildlife from wandering in
• Walls vs. doors: Installing in a wall with a tunnel adds an extra layer of deterrent

Extra Tips for Boosting Security

• Use motion lights near pet flap entrances
• Keep food and litter trays away from the door
• Install a camera to monitor the area if you're concerned
• Add a barrier or interior gate if needed overnight

Final Thoughts

A modern, well-installed pet flap with microchip or RFID control can offer both freedom and safety. With the right setup, your pet gets independence — and you get peace of mind.

Need help choosing a secure pet door? Browse our top-rated models at catflaps.co.uk — and let your pets in, while keeping everything else out.