Intumescent strips and smoke seals: our service in Sunbury-on-Thames
Our intumescent strips and smoke seals service in Sunbury-on-Thames is simple: a survey, a fixed quote, certified products and an installation finished to the manufacturer's evidence.
Sunbury-on-Thames has a broad mix of buildings, including small offices, light industrial buildings and houses with integral garages, and the same fire door principles apply to all of them.
Painted and missing seals are among the most common fire door defects nationally; in Sunbury-on-Thames we replace them with the type and size the certification specifies. We check that each door in your Sunbury-on-Thames building closes and latches against its new seals before signing it off.
Why seals fail
Seals are the most common defect on fire door inspections. They get painted over, pulled out, damaged by cleaning or simply worn by years of use. A painted brush seal no longer seals, and a strip of the wrong size may not close the gap in a fire. Our guide to seals explains the different types.
What you get:
- Brush or blade smoke seals
- Identification of the specified seals
- Removal of damaged or painted seals
- Intumescent strips in frame or leaf edge
What the rules say for Sunbury-on-Thames
England's framework applies in Sunbury-on-Thames. Approved Document B guides the fire performance of new and replacement doors under the Building Regulations 2010. Day-to-day duties sit with the responsible person under the Fire Safety Order 2005, and for multi-occupied residential buildings, the Fire Safety (England) Regulations 2022 add duties such as giving residents information about fire doors.
For blocks over 11 metres in Sunbury-on-Thames, those regulations require communal fire door checks at least every three months and best-endeavours flat entrance door checks each year. In higher-risk buildings, building work is overseen by the Building Safety Regulator, so we check whether approval is needed before starting.
Buildings and duty holders in Sunbury-on-Thames
Landlords, managing agents, facilities teams and homeowners in Sunbury-on-Thames can all commission intumescent strips and smoke seals from us. The usual settings are care homes and blocks of flats, though single doors for HMOs are just as welcome.
What happens after you enquire
- Identify door certification and seal specification
- Remove failed seals and clean the grooves
- Fit new strips and seals to the specified positions
- Fit missing pads and lock linings
- Check the door closes and latches against the new seals
- Record the products fitted
Prices for intumescent strips and smoke seals in Sunbury-on-Thames
Budget around £45–£110 per door to supply and fit strips and seals, ex VAT for intumescent strips and smoke seals. Our guide prices are the same in Sunbury-on-Thames as elsewhere; what changes the cost is the doors themselves. Use our guide-price tool for a quick estimate.
Around Sunbury-on-Thames
We also cover towns near Sunbury-on-Thames, including Walton-on-Thames (2.0 km away), Hampton and Hanworth. If your building is in TW16 or a neighbouring district, the service and pricing are the same.
Questions
Is Sunbury-on-Thames within your coverage area?
It is. We cover Sunbury-on-Thames in Surrey and neighbouring towns such as Walton-on-Thames. There is no charge for the survey.
What happens on a survey in Sunbury-on-Thames?
We look at every door in scope: the leaf, frame, gaps, seals, hinges, closer, glazing and how the frame is fixed. You then get a written quote that prices each door separately.
Do all fire doors need smoke seals?
Only where the door is specified for smoke control, such as FD30S doors. Many doors on escape routes and flat entrances are specified this way.
Can smoke seals be painted?
No. Paint stops brush and blade seals working. If seals have been painted, they should be replaced.

