Fire door frames for Gwynedd buildings
Our fire door frames service covers all of Gwynedd, across postcode districts including LL23, LL78 and LL57.
In older buildings the frame can be the weak point even where the leaf is sound, so we check it on every Gwynedd survey. Frame-to-wall gaps on Gwynedd 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 Gwynedd can all use one team for survey, supply, installation and evidence. We plan work around occupants and hand over a record for every door.
Frames on their own
Where a leaf is sound but the frame is not, a new compatible frame can sometimes be fitted to the existing leaf, provided the combination is supported by the leaf's certification. More often, a frame replacement is part of a doorset installation.
Rules and responsibilities in Gwynedd
Fire door work in Gwynedd follows Welsh building regulations and the Welsh Approved Document B. The Fire Safety Order 2005 covers workplaces and the shared parts of residential buildings here too, placing the duty on the responsible person.
The English regulation 10 checking regime does not extend to Gwynedd, so how often doors are checked comes from the fire risk assessment. We hand over evidence that fits whatever regime your assessor sets.
From enquiry to handover in Gwynedd
- 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
Prices for fire door frames in Gwynedd
As a guide, budget £250–£600 per frame replaced, fixed and sealed, ex VAT for fire door frames. The figure for your Gwynedd building depends on the number of doors, the rating, the condition of the frames, finishes, hardware and access. We confirm a fixed price after the free survey.
Fire door frames questions
Do you provide fire door frames across Gwynedd?
Yes. We cover all of Gwynedd. Surveys and written quotes are free.
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.
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.

