Welcome To Redline Firedoors | Klarna Finance Available
Fire doors aren’t just another item on a renovation checklist – they’re a legal requirement in most shared and commercial buildings, and getting the installation wrong can mean a door that looks fine but fails when it actually matters. If you’re weighing up fire door installation for the first time, a bit of upfront knowledge saves a lot of expensive mistakes later.
This guide walks through what proper installation involves, what it actually costs, and the mistakes that catch people out most often.
A compliant fire door isn’t just a heavier version of a normal door. It’s a full system – the door leaf, frame, intumescent seals, smoke seals, hinges rated for the door’s weight, and a self-closing device, all working together to hold back fire and smoke for a set period.
Miss one part of that system, or fit it with the wrong gaps around the frame, and the whole door’s fire rating can be compromised, even if it looks perfectly normal.
How much does it cost to fit a fire door depends mostly on whether you’re swapping a door like-for-like, replacing the frame too, or fitting a higher-rated door for a specific area.
Communal areas in flats, HMOs, and commercial buildings often need multiple doors fitted at once, which is where per-door pricing tends to work in the property owner’s favour.
A few issues come up again and again, usually from trying to save money upfront:
Every one of these is cheaper to avoid upfront than to fix after a failed inspection.
FD30 doors, rated to hold back fire for 30 minutes, are the standard for most residential and light commercial use. FD60 doors cost more and are typically needed in higher-risk areas like plant rooms or escape routes in larger buildings.
Reusing a sound, compliant frame keeps costs down. If the existing frame’s damaged or non-compliant, replacing it adds materials and labour to the job.
Fire-rated hinges, closers, and handles cost more than standard hardware, but they’re not optional – using the wrong hardware invalidates the door’s rating.
Fitting one door costs more per unit than fitting ten as part of the same job, since setup and labour get spread across the whole project.
A proper installation includes documentation confirming the work meets Building Regulations. This is usually included in the quote, but it’s worth confirming rather than assuming.
How much to fit a fire door really comes down to getting a proper site visit rather than a phone estimate. Before accepting a quote, check that it includes:
Redline Fire Doors handles the supply and fitting of certified fire doors for homeowners, landlords, and commercial property managers across the UK, with every quote based on an actual site assessment rather than a generic estimate.
The team supplies certified doors and hardware as standard, so there’s no gap between what’s fitted and what’s actually compliant.
Looking for an accurate fire door fitting cost based on your property rather than a generic estimate? Contact Redline Fire Doors for a proper site assessment.
A single door usually takes half a day to a day, depending on whether the frame's being replaced. Larger multi-door projects are scheduled around the building's use to minimise disruption.
It's not recommended. Fire doors need to be fitted to precise tolerances to maintain their rating, and DIY installations often fail inspection because of incorrect gaps or missing components.
Yes, especially for landlords, HMOs, and commercial buildings. Certification proves the door meets Building Regulations and is often required for insurance purposes.
Fire doors don't have a fixed replacement date, but they should be inspected regularly and replaced if damaged, warped, or if seals and hardware are no longer functioning correctly.
The number refers to how many minutes the door can hold back fire – FD30 for 30 minutes, FD60 for 60. FD60 doors are usually needed in higher-risk locations within larger buildings.
