Denham is in Buckinghamshire, not London.
That makes one difference for you. The fire and rescue service is Buckinghamshire Fire and Rescue Service, not London Fire Brigade. It does not change what a fire door has to do. It changes who might call on you.

Same rules, different service
The Regulatory Reform (Fire Safety) Order 2005 applies in Buckinghamshire as it does in London. If you are responsible for non-domestic premises or the common parts of a block, you must keep the fire doors maintained.
The Fire Safety (England) Regulations 2022 also apply, so if your residential building is over 11 metres the quarterly and annual checks have to happen.
What we are likely to look at
Denham has a village centre and a number of larger properties around it. There are also business premises on the edge of the village.
The sort of job we do is a small block, a converted building or an office with a few doors. The checks are the same as anywhere. Gaps, hinges, closer, seals, glass, label.

Older buildings
If a building is old and has a lot of character, it may also be listed or in a conservation area. A listed building can have restrictions on changing doors. We write down what we find and you take that to whoever advises you on the listing.
If a door is a panelled door we say so, and we explain why a plain certified doorset is the better replacement.
Getting here
We come from Luton and Denham is on the same side of the M25 as Uxbridge. It takes us a few minutes more to get to than the town itself. We often put Denham and Uxbridge into one day.
Price
From around £250 plus VAT for a small building. If we are already in the area the price may be lower.
Questions we get asked
Do you work in Buckinghamshire as well as London?
Yes. The inspection is the same.
Does the fire service visit more often in London?
We do not know how often either service visits. If you are worried, ask your assessor.
Send the postcode and a rough number of doors. A price comes back the same day.
Get a price