Spy Holes

Spy Holes & Door Viewers

Want to see who is at the door before you open it? A spy hole (door viewer or peephole) lets you check callers without opening the door.

We stock the Greenteq wide angle spy hole with a 160 degree view. If you are changing your knocker too, a spy hole door knocker combines the two in one.

Before You Order

Door thickness

Measure the thickness of your door and check it against the range on the listing.

Fitting height

Fit the spy hole at a comfortable eye height for the people who will use it.

Replacing an old viewer

Measure the hole size of the old viewer and compare it with the listing.

Spy hole knocker

Changing the knocker anyway? A spy hole knocker gives you both in one.

Spy Hole Guide

How to Fit a Spy Hole

Drill a hole through the door at the right height, push the outer part in from outside and screw the inner part in from inside until it is tight. Check the listing for the drill size.

Frequently Asked Questions

What does wide angle mean?

A wider angle lets you see more of the area outside your door. The Greenteq viewer has a 160 degree view.

Can I fit a spy hole to a uPVC or composite door?

Yes, if the door thickness is within the range on the listing.

Can I have a spy hole and a knocker?

Yes. Choose a knocker with a built-in spy hole, or fit them separately.

Browse all door accessories: door knockers, door knobs, spy holes, door chains, cabin hooks, door thresholds, weather bars, key fobs and tubular mortice latches.

Not sure which spy hole fits your door? Send us a photo of your door and the old viewer, if you have one, and we'll check for you.

Send us a photo to identify your part

Monday to Friday, 8:30–12:30 and 13:00–15:30