County Durham · DL1

Intumescent & Smoke Seal Replacement in Darlington

Darlington landlords, managing agents and facilities teams can book fire door seal replacements with straightforward reports and fixed prices.

Intumescent seals are strips set into the edge of a fire door or its frame that expand when heated to close the gap around the door. Smoke seals, usually brush or fin seals, block cold smoke before the intumescent reacts. Both are part of the door's tested performance. We use the same method for buildings in Darlington.

Town: Darlington
County / area: County Durham
Local authority: Darlington
Postcode district: DL1
Region: North East England
Population: Around 92,000 people
Fire safety law: England: Fire Safety Order 2005 + regulation 10 above 11 m
Nearest town: Newton Aycliffe (11 km)

Where fire doors matter most in Darlington

Buildings in Darlington range from 1960s flats to new-build apartment schemes, plus care homes, schools and retail units with stock rooms and stair doors. For fire door seal replacements, we group Darlington visits with nearby buildings wherever possible to keep your price down.

What's included in Darlington?

Old seals removed cleanly from the groove
Intumescent-only or combined intumescent and smoke seals as required
Survey of the seal type, size and position for each door
Seals on hanging, closing and head edges, and meeting stiles on pairs
Gap readings checked so new seals can work

Type	Intumescent only or combined with a smoke seal, to suit the door's rating.
Size	Width and position match the door's evidence and gap.
Paint	Smoke seals free of paint so they can work.

Full details on our intumescent & smoke seal replacement page.

Why book with us in Darlington?

Priced door by door

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

One contact

One point of contact for inspections, repairs and replacements across Darlington and County Durham.

Booked around you

Visits in Darlington are booked around residents, pupils or patients, including early, late and weekend slots by arrangement.

Fire door law for Darlington buildings

Buildings in Darlington fall under English fire safety law: the Fire Safety Order 2005 requires fire doors to be maintained, and in multi-occupied residential buildings over 11 metres regulation 10 sets quarterly and annual checks.

What will it cost in Darlington?

In Darlington, fire door seal replacements typically cost £45–£110 per door ex VAT, with visits from £145. Get a guide price for your Darlington building.

Darlington FAQs

Can I just stick new seals over the old ones?

No. Seals should be fitted into the groove after the old seal is removed, in the size and type the door was tested with.

Which fire safety law applies in Darlington?

Darlington is in England, so the Regulatory Reform (Fire Safety) Order 2005 applies, together with the Fire Safety (England) Regulations 2022 for multi-occupied residential buildings.

Do you work in occupied buildings in Darlington?

Yes. Inspections and repairs in Darlington can be carried out in occupied flats, schools, care homes and workplaces, with doors kept closable at all times.

What is the difference between an intumescent strip and a smoke seal?

An intumescent strip expands in heat to seal the gap during a fire. A smoke seal, often a brush or blade, blocks cold smoke at lower temperatures. Smoke control doors, marked with an S such as FD30S, need both.