County Londonderry · BT48

Fire Stopping Around Doors in Londonderry County Borough

We provide fire stopping works for buildings in Londonderry County Borough and the BT48 postcode district, from single doors to whole blocks and estates.

Fire stopping is the sealing of gaps and openings in fire-resisting walls and floors so fire and smoke cannot pass through. Around a fire door it mainly means the gap between the door frame and the wall, which must be sealed as well as the door itself. We use the same method for buildings in Londonderry County Borough.

Town: Londonderry County Borough
County / area: County Londonderry
Local authority: Derry
Postcode district: BT48
Region: Northern Ireland
Population: Around 87,000 people
Fire safety law: NI: Fire and Rescue Services (NI) Order 2006
Nearest town: Derry

Fire doors in Londonderry County Borough's buildings

Londonderry County Borough has smaller blocks of flats, flats above shops, care homes and schools, where a single day on site often covers every fire door. For fire stopping works, we group Londonderry County Borough visits with nearby buildings wherever possible to keep your price down.

Included as standard in Londonderry County Borough

Frame-to-wall gaps exposed and inspected
Photographs before and after each seal
Architraves refitted after sealing
Gaps sealed with suitable intumescent mastic, foam or stone wool
Service penetrations near doors sealed in compartment walls

Evidence	Before and after photos for each location.
Material	Product suitable for the gap width and substrate.
Gap	Frame-to-wall gap fully filled to the depth required.

Full details on our fire stopping around doors page.

How we work in Londonderry County Borough

Photos of every defect

You get photographs of every defect found in Londonderry County Borough, linked to a door reference you can find again.

Priced door by door

Every failed item in Londonderry County Borough is priced separately, so you approve exactly what you want done.

Same report everywhere

Whether your building is in Londonderry County Borough or across the country, the report format, defect grading and pricing are the same.

Northern Ireland fire safety law in Londonderry County Borough

For buildings in Londonderry County Borough, the Fire Safety Regulations (Northern Ireland) 2010 set the maintenance duty; the English regulation 10 schedule does not apply.

What will it cost in Londonderry County Borough?

Guide prices for fire stopping works in Londonderry County Borough are typically £60–£180 per door frame, ex VAT. Get a guide price for your Londonderry County Borough building.

Common questions in Londonderry County Borough

Can you fire stop a whole building?

This service covers fire stopping around doors and nearby penetrations. Wider compartmentation surveys need a specialist survey, which we can arrange.

Can you price remedial work in Londonderry County Borough from another company's report?

Yes. Send the report and we will price each line for your building in Londonderry County Borough, or revisit specific doors if the report lacks detail.

Is expanding foam acceptable around a fire door frame?

Only a fire-rated foam with evidence for that use and gap size. Ordinary expanding foam is not suitable. BS 8214:2026 lists acceptable approaches such as suitable mastics, foams and stone wool.

Which fire safety law applies in Londonderry County Borough?

The Fire and Rescue Services (Northern Ireland) Order 2006 and the Fire Safety Regulations (Northern Ireland) 2010 require fire safety measures, including fire doors, to be maintained.