Fire door frames: our service in Hertfordshire
For fire door frames anywhere in Hertfordshire, one team handles the survey, supply, installation and handover, covering Watford, Hemel Hempstead, Stevenage and the rest of the county.
In older buildings the frame can be the weak point even where the leaf is sound, so we check it on every Hertfordshire survey. Frame-to-wall gaps on Hertfordshire jobs are sealed with materials supported by the test evidence, as BS 8214:2026 sets out.
Managing agents, landlords, schools, care providers, businesses and homeowners in Hertfordshire can all use one team for survey, supply, installation and evidence. We plan work around occupants and hand over a record for every door.
BS 8214:2026 and the frame-to-wall gap
The 2026 revision of BS 8214 strengthened its guidance on sealing the gap between the frame and the surrounding structure, listing material types such as stone wool, mastic and fire-rated foam, and putting the emphasis on using what the evidence supports. We fill and seal that gap with materials covered by the doorset's or sealant's test evidence and photograph it before the architraves go back on.
Which fire door rules apply in Hertfordshire?
Fire doors in Hertfordshire fall under English rules. New and replacement doors are covered by the Building Regulations 2010 and Approved Document B. In workplaces and the common parts of blocks, the Regulatory Reform (Fire Safety) Order 2005, as clarified by the Fire Safety Act 2021, puts the duty on the responsible person to keep fire doors suitable and maintained.
For residential buildings in Hertfordshire above 11 metres, regulation 10 of the Fire Safety (England) Regulations 2022 adds checks: communal fire doors at least every three months and best-endeavours checks of flat entrance doors at least every twelve months. Higher-risk buildings of at least 18 metres or seven storeys also come under the Building Safety Act 2022, where works may need approval from the Building Safety Regulator.
How a Hertfordshire job runs
- Remove architraves and inspect frame fixing
- Decide repair, re-fix or replace
- Prepare the opening and fit the frame
- Pack and fix at specified centres
- Seal the frame-to-wall gap
- Photograph, fit architraves and make good
Budgeting for fire door frames in Hertfordshire
If you need a budget figure first, the guide for fire door frames is £250–£600 per frame replaced, fixed and sealed, ex VAT. We firm that up after a survey, pricing each door separately so you can see where the money goes.
Common questions
Do you provide fire door frames across Hertfordshire?
Yes. We cover all of Hertfordshire, including Watford and Hemel Hempstead. Surveys and written quotes are free.
Can I use expanding foam around a fire door frame?
Only a fire-rated foam with evidence for that use and gap size. Ordinary expanding foam is not suitable.
What is the frame-to-wall gap?
It is the space between the door frame and the surrounding wall, normally hidden by the architrave. If it is not filled with a suitable fire-resisting material, fire and smoke can pass around the door.

