PetDoors.com (Pet Door Superstore) Review

A pet door is a hole you cut in your house on purpose, which is why the category punishes casual shopping: buy the wrong size or the wrong mount type and you own both a mistake and the hole it lives in. PetDoors.com is the specialist answer — a retailer whose entire catalog is dog and cat doors, from economy flaps to weather-tight insulated units, across door, wall, window and slider installations.

The reason we review the store rather than one door: in this category the retailer's guidance is the product. Their sizing methodology — measure the pet, not the doorway — and mount-type explainers read like they were written by people who've fielded every possible way this purchase goes wrong. Working through their material before buying is the difference between one confident order and two returns, and it costs you nothing but an evening.

What a specialist ought to offer in this category — and what this one is set up to offer — is a pre-sale conversation about your particular wall. Mount depth, frame thickness, whether a slider insert will clear your track: these are questions a general retailer's support desk answers with a link, and a specialist answers with a specification. For a product that gets installed into a structure rather than placed on a shelf, that access matters more than a discount does.

Three traps to sidestep, whoever you buy from. Don't size to your current pet if a puppy is still growing — size to the adult it will become. Don't default to the door-mount kit just because it looks easiest if a wall or slider install actually suits your layout; each mount type has its own hardware reality, and the guidance pages exist to sort that out before you commit. And if your winters are real, skip the economy tier: a cheap flap in a cold climate leaks your heating bill through a plastic square, all season, every season.

The step height is the measurement people forget, and it causes more abandoned pet doors than sizing does. A flap cut too high off the floor asks an animal to jump into a hole, which older dogs and short-legged breeds will simply refuse to do; too low and you weaken the door or, in a wall install, run into framing. The usual guidance is to set the bottom of the opening at or just below the height of the pet's lowest joint rather than measuring from the belly — and to check that guidance against the specific door you are buying, because frame thickness changes where the opening actually lands.

Security and the things that follow a pet through the hole deserve honest treatment, because the category's marketing is quiet about both. Any opening in an exterior wall is a consideration, and the mitigations are real but partial: locking covers, electronic flaps keyed to a collar tag or microchip so only your animal opens it, and siting the door where it is not reachable from a latch. Electronic doors solve the neighbourhood-cat and wildlife problem well; they also introduce batteries, a collar your pet has to keep wearing, and a mechanism that can fail. Neither choice is wrong, but a buyer who thinks a flap is only a flap will be surprised twice.

Renters and anyone in a managed building should stop before the shopping and check what they are allowed to cut. Wall and door installs are permanent modifications; the sliding-panel inserts exist precisely for this situation and remove nothing that cannot be put back. They are a genuine solution rather than a compromise — the trade-off is a slightly less weather-tight seal and a panel that occupies part of your slider — and they are the right first look for anyone who does not own the wall.

Budget accordingly and buy once. The premium insulated doors cost real money, but the arithmetic of this category is unusual — the product is semi-permanent, the installation is the expensive part to redo, and cutting the hole once, correctly, for the right door is the entire game. This is the store built around helping you do exactly that.