Fire door repair is a narrower activity than it sounds, because a fire door is a certified assembly and most repairs either sit inside the manufacturer's permitted maintenance or take the door outside its certification. A general joiner can hang a door beautifully and leave it non compliant, which is why the questions asked before the work matter more than the price.
What is normally repairable
Replacing damaged intumescent or smoke seals with the correct type. Replacing a failed closer with a permitted equivalent. Adjusting or replacing hinges with the specified grade. Re-aligning a frame or adjusting a keep so the latch engages. Making good small surface damage within the manufacturer's limits. Replacing glazing beads or a vision panel with the tested system.
What generally is not
Filling holes through the leaf. Patching a leaf that has been cut for a lock or a grille. Planing the leaf to fix a sticking door, beyond the small tolerance the manufacturer allows. Fitting hardware from outside the certified range. Replacing a leaf and keeping an unknown frame. In each case the honest options are a certified replacement doorset or documented evidence from the manufacturer that the repair is permitted.
What to ask before appointing
Whether the firm is registered under a fire door installation or maintenance scheme, and its registration number. What evidence it will leave behind: which doorset, which components, which instructions. Whether it will report defects it finds and cannot fix, rather than working around them. And whether it sells doors, because a report recommending replacement from a company that sells replacements is worth reading with that in mind.
What the job should leave behind
A record per door of what was found and what was done, the product details of anything fitted, and a re-check confirming the door closes and latches. That record joins the building's fire door schedule. Work with no record leaves the duty holder no better off than before, because the evidence problem is the compliance problem.
Questions people ask about fire door repairs near me
Can a fire door be repaired after a break in?
Sometimes, where the damage is confined to hardware and the frame. Damage to the leaf core or to the frame fixings usually means replacement, and the assessment has to be honest about it.
Is a certified installer legally required?
The law requires competence. Scheme registration is the ordinary evidence of it, and it is what a duty holder can point to afterwards.
How quickly should a failed fire door be fixed?
A door that does not close and latch is an immediate risk and should be dealt with straight away, with an interim control such as keeping it shut and monitored until it is.