Listen to the audio version

Download the PDF version of the fitting instructions here.

Please see also Fitting a Petflap into glass and Fitting a Petflap into a wall.

We recommend having your Petflap fitted by a professional experienced in this sort of work, as poor fitting can affect the Petflap’s performance. We accept no liability for inconvenience or expense arising from faulty fitting or Petflaps developing a fault in use, though we will be keen to help. Please ensure the instructions in our fitting leaflet are followed carefully.

We recommend fitting a Petflap with silicone sealant, just as we do for the Ecoflap. If your door has panels please measure the door prior to purchase to see whether the Petflap can fit within one panel.


To ensure a snug weatherproof fit please read these fitting instructions and follow them carefully.

Please note: it’s vital that the hole for the Petflap is comfortably big enough. Fitting a Petflap into a hole that is too tight will impede the movement of the flap. The hole needs about 2mm of play, especially if fitting into glass.

You will need: pencil, tape, drill, jigsaw and silicone sealant.

The Petflap can be fitted into a perfectly circular hole, eg for glass, or one cut to the shape of the trunking.
This is a matter of choice.

1. Preparing your door, wall or glass

Your door should be clean and dry. Check that it’s level and flat. A Petflap fitted to an uneven door or wall may not always close properly.

Identify carefully where the Petflap is to go.

2. Cutting

The rear collar also acts as a template. Place it on the appropriate place on the door. A piece of tape can help at this stage.








Draw a line inside the collar to mark the hole cut needed. If you wish to cut a perfectly circular hole, move the fitting ring round to ensure a circle is drawn all the way round.

Drill a hole inside the circle to make starting sawing easier. Using a jigsaw carefully cut on the outside edge of the line you have drawn. After cutting tidy up any rough edges on the hole.








3. Fitting

The flat part goes at the bottom







The Petflap tunnel will now slide through the hole. Test this without adhesive, checking that the hole is not too tight and that the pet access flap still moves easily.

At this stage, please ensure that the Petflap is not hit through the door with a rubber mallet or otherwise bashed or hit. If the hole is big enough this shouldn’t be necessary, and small elements within the Petflap can be damaged by an impact of that sort.

Use a spirit level to check that the Petflap is true vertically and horizontally, then the Petflap can be fixed to the door. When looking from the inside of the door, fit the Petflap with the lock top left in the 10 o’clock position. The flat step goes at the bottom of the Petflap.

The Petflap should push through the hole from the external side of your door with the plate pushed flat against the door’s external surface.

We recommend fixing your Petflap to the door with silicone sealant. With a little care the sealant can be removed if you ever need to move the Petflap.

Apply sealant to the rear suface of the external front plate and press this firmly against your door. On the other side of your door, do the same with the ring, which now forms a rear cover for the inside.

Take care to secure the main body of the Petflap so as to not to push it back through the hole when fitting the collar plate.

With a damp cloth, wipe away any excess sealant front & back.

Leave the sealant to cure for the manufacturer’s recommended time before use.

The film can now be removed. It may be necessary to wipe the Petflap’s edges as sometimes a fine dust can gather on the cut edges of the film.



fitting a petflapPlease ensure that this whole leaflet is read by the person fitting your Petflap.

Make sure that the Petflap is the right product for you before fitting. Make sure your pet fits through and that the product has not sustained any damage in transit or unpacking. Push open the flap by hand a few times. Please make sure you’re happy with the closing action and the lock.

It’s vital to ensure that the hole cut in glass is the right size first time. The hole for the Petflap needs about 2mm of play in order not to pressurize the glass unduly or to place pressure on the Petflap’s pivot.

Using the fitting ring as a template and cutting on the wide side, as instructed in the leaflet, should ensure this play is present, but we ask you to double check to avoid inconvenience.

We take no liability for consequential costs or damage arising from faults or faulty fitting. If your glazier has any doubts or concerns whatsoever, they are welcome to contact us on