How many hinges does a fire door need?
Get a priceUsually three. Each one should be a hinge suitable for fire doors, and every screw hole should have a screw in it.
The door's certificate or fitting instructions say what applies to your door. A heavy door, or a taller one, may need more.
Why they must match
A fire door is tested with certain hinges. If one hinge is swapped for something thinner, or for a type that melts at a lower temperature, the door may not hang in a fire as it did in the test.
Hinges should be the same size and finish. If one is different, ask why.
Screws
Every screw hole should be filled. A missing screw puts more load on the others. A screw that is too short does not bite into the frame, and a screw head that is different from the rest is a sign somebody ran out.
Hinges that have been loosened and retightened many times strip the hole in the timber. A screw in a stripped hole holds nothing.
What we look for
We check the number of hinges, that they match, that no screw is missing or short and that the leaf has not dropped. The gap down the hinge side tells us a lot. If it is wider at the bottom than the top, the hinges are tired.
If you can see a hinge with a loose screw, tighten it, and if it will not hold, get it looked at.
Send the postcode and a rough number of doors. A price comes back the same day.
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