Fire stopping in Harlington
Fire-rated and intumescent sealing of service penetrations and linear gaps in Harlington. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Seals that don’t match their tested detail
- Head-of-wall gaps with no fire seal
- Old intumescent sealant that has split away
Fire stopping across Harlington
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How we handle fire stopping in Harlington
No fire sealant works on its own: its test evidence covers one product in one kind of wall or floor, with set services, gaps, depths and backing. Before we seal anything, we check the opening against the detail it is meant to follow, and we say so if it doesn’t fit. We work on joints between fire-resisting walls and floors, small duct penetrations where the tested detail allows and linear gaps at wall heads, and what we are called in for most is non-fire-rated filler around services and penetration schedules that need working through. For commercial sealant work in Harlington, you deal with one contact from quote to sign-off, whether it’s one building or several.
After a fit-out or new cabling in a London building, risers and ceiling voids are where open service gaps tend to be found. If sealant is the specified product we fit it to its tested detail, and if the detail needs something else, you’ll hear it from us.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Place
- Harlington (UB3, TW6, UB7)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Work for main contractors and building owners
CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We are fully insured, and our insurance certificate can go with the quote.
If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.
Common problems we fix in Harlington
Most open service penetrations are left by later work. A new cable pulled by an electrician, a pipe rerouted by a plumber or a data run drilled through a riser leaves an opening that nobody returns to. Over a few years of fit-outs, a wall can collect a lot of these.
What tends to prompt an enquiry:
- Snag lists that include open service penetrations
- Open linear gaps along the top of fire-resisting walls
- Fire sealant pulled out of the opening
- Openings left by services added after handover
On a site such as Eastern Business Park, which lies south-east of Harlington, every fit-out that runs new services through a compartment wall leaves penetrations to seal with the specified product.
Comparing quotes
- Will failed sealant be removed rather than covered?
- Is the sealant right for the movement and the substrate?
- Their pre-qualification and accreditations
- Their plan for phasing and protecting the area
General trades versus a specialist
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are easy to get wrong without experience.
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Places near Harlington
Also in Harlington
Fire-rated sealing for Harlington buildings
For England, the fire stopping of penetrations is dealt with in Approved Document B. Its BS 476 references are being withdrawn from 2 September 2029, with BS EN 13501-2 classification taking over, subject to transitional arrangements. Our part stays the same: the specified product, installed to its tested detail. There are plenty of hotels within about 2 miles of Harlington. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal.
Hospital estates such as Hillingdon Hospital (to the north of Harlington) are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail. For an estates team at a campus like Brunel University of London, 3.6 miles to the north-west of Harlington, summer M&E works are usually followed by a round of penetration sealing.
Harlington is about 2 miles south-east of West Drayton, in Greater London. Looking for fire stopping in Harlington? We can help. Harlington is one of 764 places we cover in Greater London. Sites around London have their own page, about 15 miles away.
Commercial sites across UB3, TW6 and UB7 are covered. For a building on New Road, Bath Road and Manor Lane or nearby, send details and we’ll quote for service penetrations. Close to Harlington, our area also takes in Sipson (1 mile north-west), Hatton (1 mile south-east), Cranford (1 mile south-east), Heathrow (1 mile south-west) and Harmondsworth (2 miles west). A short drive away, we cover London (15 miles east), City of Westminster (12 miles east), Marylebone (13 miles east), Kensington (10 miles east), St Pancras (14 miles east) and Hoxton (15 miles east).
Near you in Harlington
Locally, jobs take us to sites close to The Red Lion pub, Harlington Community School and Lake Farm Country Park. For rail, the closest station is Heathrow Terminals 2 & 3 Rail station, about 1.2 miles south-west. Well-known places in the area include Harlington (0.6 miles north-west) and Treaty Centre (3.4 miles east). Green spaces nearby include Staines Reservoirs and Crane Meadows.
Different surfaces, different methods
Plastic pipes
Waste and drainage pipes through floors are a frequent case. The detail decides whether sealant alone is enough.
Cables and cable bundles
Single cables and small bundles are often within a fire-rated sealant’s tested detail. Bundle size, cable type and the space between cables all matter.
Quoting for work in Harlington
What shapes the price:
- Induction, permit and paperwork requirements
- Distance, for remote addresses
- Quantities, in metres or numbers
- Whether the work must be split into stages
The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
What to include in your enquiry
Diagnosis starts before we arrive. Let us know:
- A wide shot and a close-up of the area
- The site address and postcode
- The asbestos register, for older buildings
- Any specification or named product
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, phone 01277 525 020 or use the quote form.
How a job runs
At the end of each section, the masking comes off, the area is cleaned and every joint is checked with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. In Harlington, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- The specification and schedule come first, so we know which details apply.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Unsuitable material is removed and the opening cleaned first.
- The specified backing and sealant go in to depth and are finished neatly.
- Anything outside the detail is reported to you rather than sealed.
What we need from you
- Share your working hours and any access restrictions
- Move anything stored against the joints
- Point out parking and an unloading spot
Ask for a quote
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or call the office on 01277 525 020 or email the details over if you’d rather talk the job through.
Advice
FAQs: Harlington
Can you work at a site such as Eastern Business Park, by Harlington?
Yes. Estates, retail parks and business parks around Harlington, Eastern Business Park among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
How does the move away from BS 476 affect penetration seals in Harlington?
References to BS 476 classes are being removed from Approved Document B from 2 September 2029, after which BS EN 13501-2 classification is the route, subject to transitional arrangements. Whichever applies, we install the specified product to its tested detail; the specification is for the designer to set.
What will the job cost?
We don’t publish prices, as every site differs. With photos or drawings, we can give you a fixed quote.
What happens if old sealant might contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.
Can you quote from photographs?
Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit.
How long before the joints can be used?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, so we will confirm the curing time on the day.
Are you CHAS accredited and on Constructionline?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.