Fire-rated sealing and fire stopping in Hounslow, Greater London
Fire-rated and intumescent sealing of service penetrations and linear gaps in Hounslow and across Greater London. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Expanding foam used as fire stopping
- Hidden openings found during inspections
- Openings left by services added after handover
Need fire stopping in Hounslow?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
What we’re called out for in Hounslow
Mixing products or improvising a detail breaks the link with the test evidence. Gaps beyond the tested size, shallow sealant, no backing where it was needed, or products from different systems mixed together are the usual culprits.
If one of these sounds familiar, it’s time for a closer look:
- Fire-stopping items raised at inspection or handover
- Fire sealant pulled out of the opening
- Expanding foam used as fire stopping
- Openings left by services added after handover
In a building such as Church of St Dunstan, any service penetration through a fire-resisting wall should be sealed to the specified detail.
What to look for in a quote
- Whether old or failed sealant will be cut out, not overlaid
- The terms of the workmanship guarantee
- What level of public liability insurance do they hold?
- Whether their applicators hold CSCS cards
Fire stopping for commercial buildings in Hounslow
Every service that crosses a compartment wall or floor leaves an opening, and that opening needs sealing to hold back fire and smoke. Our job is fitting fire-rated and intumescent sealant at those service penetrations, and along linear gaps, where it is the specified product. Each seal follows the manufacturer’s tested detail, not a rule of thumb. If you are dealing with damaged fire seals in risers and voids and openings left by services added after handover, we can help, whatever the surface. Searching for sealant specialists in Hounslow? We have been sealing commercial buildings since 2005.
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 will hear it from us.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Place
- Hounslow (TW13)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Hounslow: questions and answers
Can you cope with the access rules in a London building?
Yes, most London buildings have access rules of some kind, and we plan around them. Share the building’s contractor rules and we will work to them. The ULEZ covers the whole of Greater London, which we allow for
Is hospital work, at somewhere like Ashford Hospital, something you do?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Who decides which product is used?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Do you guarantee your work?
Yes. The 12-month guarantee covers our preparation and application, though not damage or work by other trades.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
Can you reseal penetrations after our M&E works?
Yes, provided a specification covers them. Openings left by new services are among the most common jobs we see and we close them with the specified product.
Can you tell us what fire stopping our building needs?
No. The specification comes from your designer, fire engineer or building control. Our role is installing what they specify, to the product’s tested detail.
On site: what to expect
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- We start with your penetration schedule, drawings or specification.
- We plan the sequence of floors, risers and voids with you.
- We compare every service penetration with its tested detail before sealing.
- Foam, ordinary sealant and debris come out.
- Backing and fire-rated sealant are installed to the detail and tooled.
- We tell you about openings that need a different product.
Preparing the site
- Explain the parking and delivery arrangements
- Warn occupants and staff about the work
- Agree which areas must stay open
Quotes
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Read more
General trades versus a specialist
Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. That’s why many clients bring in a specialist from the beginning.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
What affects the price in Hounslow
To price the job, we consider:
- Backing rod, priming and other preparation
- Induction, permit and paperwork requirements
- Whether old sealant has to be cut out first
- The total length or number of joints
The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a fixed quote once you have the details.
Before you send an enquiry
Good information means a firmer quote. When you get in touch, include:
- Approximate linear metres or a joint schedule
- The type of building and who uses it
- The postcode of the building
- Clear photographs of the problem areas
A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.
Commercial clients in Hounslow
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
Nearby places to Hounslow
Also in Hounslow
Fire stopping around Hounslow: what changes locally
In London buildings, frequent fit-outs and M&E changes are a common reason fire stopping gets breached. Penetrations are sealed with the specified product, to its tested detail, under the building’s own permit rules. Several hotels sit less than 2 miles from Hounslow. A hotel refit often runs new services through compartment walls between bedrooms and corridors, and each opening needs the specified seal.
Colleges such as West Thames College - Skills Centre, 1.9 miles north-east of Hounslow, add IT and services as courses change, and each new penetration through a fire-resisting wall needs sealing with the specified product. For an estates team at a campus like St Mary's University, which lies east of Hounslow, summer M&E works are typically followed by a round of penetration sealing.
Hounslow is about 1 mile north of Sunbury-on-Thames, in Greater London. Hounslow sits inside our coverage and the rest of Greater London, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 764 places in Greater London, large and small. London is covered too, around 15 miles from Hounslow.
Business premises anywhere in TW13 are within our area. Sites close to Hounslow are covered too, including Ashford Common (1 mile south-west), Littleton Common (1 mile south-west), Sunbury-on-Thames (1 mile south), Feltham (1 mile north-east) and Bedfont (1 mile north). Bigger towns within reach include London (15 miles east), City of Westminster (13 miles north-east), Marylebone (14 miles north-east), Kensington (11 miles north-east), St Pancras (15 miles north-east) and Hampstead (14 miles north-east).
Around Hounslow
Recent enquiries here include premises near Sunbury Park, Sunbury Manor School and Sunbury Manor School and the streets around them. The nearest railway station is Sunbury station, about 0.9 miles south-east of the centre. Well-known places in the area include Treaty Centre (3.8 miles north-east) and Ashford Hospital (1.9 miles north-west). Open spaces near Hounslow include St Ann's Hill and Staines Reservoirs.
Looking after the joints
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Ask which product is in place before decorating
- Flag new cables with no seal around them
- Look above ceilings when tiles are lifted for other jobs
- Arrange inspection before areas are covered up
Add risers, plant rooms and ceiling voids to routine fire-stopping checks. Watch for cracked sealant, new services with no seal and openings that have grown.
Write fire stopping into the scope of any work crossing a compartment wall or floor. That way the opening is sealed while the trade and access are still there.