Lincolnshire · DN21

Intumescent & Smoke Seal Replacement in Gainsborough

We provide fire door seal replacements for buildings in Gainsborough and the DN21 postcode district, from single doors to whole blocks and estates.

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 Gainsborough.

Town: Gainsborough
County / area: Lincolnshire
County council: Lincolnshire
Postcode district: DN21
Region: East Midlands
Population: Around 21,000 people
Fire safety law: England: Fire Safety Order 2005 + regulation 10 above 11 m
Nearest town: Retford (14 km)

What kind of buildings in Gainsborough need fire door work?

Village schools, community buildings and small care homes around Gainsborough are typical of local fire door work. If you look after more than one building around Gainsborough, we can schedule them on the same day.

What happens on site in Gainsborough?

Seals on hanging, closing and head edges, and meeting stiles on pairs
Threshold or drop-down seals where smoke control is required
Survey of the seal type, size and position for each door
Old seals removed cleanly from the groove
Intumescent-only or combined intumescent and smoke seals as required

Type	Intumescent only or combined with a smoke seal, to suit the door's rating.
Continuity	No breaks, overlaps or missing lengths.
Size	Width and position match the door's evidence and gap.

Full details on our intumescent & smoke seal replacement page.

Why book with us in Gainsborough?

Priced door by door

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

Photos of every defect

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

Booked around you

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

Fire safety law that applies in Gainsborough

Gainsborough 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.

Gainsborough guide prices

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

Intumescent & Smoke Seal Replacement in Gainsborough: questions

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.

Can intumescent strips be painted?

Brush and fin smoke seals should never be painted, because paint stops them working. Some intumescent strips tolerate a light coat, but the safest rule is to mask all seals before decorating and replace any that have been painted.

Which fire safety law applies in Gainsborough?

Gainsborough 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 cover the area around Gainsborough?

Yes. As well as Gainsborough itself we cover nearby towns including Retford, Scunthorpe and Lincoln.