Greater London · TW7

Intumescent & Smoke Seal Replacement in Isleworth

Whether it is a block of flats, a school or a care home in Isleworth, our fire door seal replacements follow the same door-by-door method and report format.

In short: 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.

Town: Isleworth
County / area: Greater London
Postcode district: TW7
Region: London
Population: Around 25,000 people
Fire safety law: England: Fire Safety Order 2005 + regulation 10 above 11 m
Nearest town: Hounslow (2 km)

Where fire doors matter most in Isleworth

Isleworth has a dense mix of high-rise flats, HMOs and commercial premises, so regulation 10 schedules and HMO bedroom doors are both common needs. We can work early, late or at weekends in Isleworth where residents, pupils or patients make daytime access difficult.

Included as standard in Isleworth

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
Threshold or drop-down seals where smoke control is required
Old seals removed cleanly from the groove

Continuity	No breaks, overlaps or missing lengths.
Paint	Smoke seals free of paint so they can work.
Type	Intumescent only or combined with a smoke seal, to suit the door's rating.

Full details on our intumescent & smoke seal replacement page.

How we work in Isleworth

One contact

One point of contact for inspections, repairs and replacements across Isleworth and Greater London.

Priced door by door

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

Same report everywhere

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

Fire door law for Isleworth buildings

Isleworth is in England, so the Regulatory Reform (Fire Safety) Order 2005 applies to the common parts and non-domestic premises, and regulation 10 adds quarterly communal and annual flat entrance door checks in residential buildings with storeys over 11 metres.

Isleworth guide prices

Guide prices for fire door seal replacements in Isleworth start from £145 per visit; typical rates are £45–£110 per door, ex VAT. Get a guide price for your Isleworth building.

Common questions in Isleworth

Do you cover the area around Isleworth?

Yes. As well as Isleworth itself we cover nearby towns including Hounslow, Heston and Richmond.

Will new seals fix a door with big gaps?

No. Seals only work within the gap they were tested with. Gaps outside tolerance need the door adjusting first.

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.

Which fire safety law applies in Isleworth?

Isleworth 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.