Who is allowed to repair a fire door?

There's no licence you must hold in England to repair a fire door. The law expects the work to be done properly by someone competent.

A good joiner may be able to change a closer perfectly well. But being good with timber doesn't mean they know why the hinge needs a particular grade, or how much can come off an edge.

So ask them some awkward questions.

What will you check on the door before you start? Which seals will you use and why? How will you record what you did?

A third-party scheme gives you some extra comfort, and some clients insist on one. Where that applies, the work goes through our BM TRADA-certificated contractors.

Whoever you use, get photos of the finished doors. Your next inspection will look at the work, and that's when you find out whether the money was well spent.