Fire-rated sealing and fire stopping in Hanworth, Greater London
Fire stopping for Hanworth, from a contractor working since 2005. Fully insured and CHAS accredited.
- Improvised or mixed-product fire seals
- Builders’ foam or ordinary silicone in compartment walls
- Unsealed openings around new pipes and cables
Fire stopping near Hanworth
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Fire stopping in Hanworth
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. We match each opening to that detail before any sealant goes in, and raise it with you if it falls outside. If you are dealing with openings left by services added after handover and openings found when ceilings come down for a refit, we can put it right, whatever the surface. Most enquiries from Hanworth start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Fit-outs and M&E works in London buildings often leave service penetrations open behind ceilings and in risers. Fire-rated sealant goes in where it’s the specified item; where a collar, wrap or batt is called for instead, we flag it.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and if something we did falls short, we return to it.
- Place
- Hanworth (TW13, TW12, TW2)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Updated
- 3 November 2026
Building owners, agents and FMs in Hanworth
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Hanworth can sit alongside others in a wider programme across Greater London.
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.
Compartment walls and floors in Hanworth
For England, the fire stopping of penetrations is dealt with in Approved Document B. References to the older BS 476 classes are being removed from it from 2 September 2029, after which the European classification, BS EN 13501-2, is the route, subject to transitional arrangements. Either way, we install the specified product to its tested detail. London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. We seal to the specification and the product’s tested detail, working within the building’s permits.
Tenant changes at centres like Treaty Centre (2.6 miles north of Hanworth) often mean new services through walls between units. Hospital estates such as Teddington Memorial Hospital, 1.7 miles east of Hanworth, are divided into fire compartments, and any service penetration through them should be sealed to the specified, tested detail.
Hanworth is about 6 miles south of Hayes, in Greater London. We cover Hanworth, with the same fixed quotes and 12-month guarantee as everywhere else. Hanworth is one of 764 places in Greater London on our list. London is covered too, some 13 miles away.
We take on service penetrations across the TW13, TW12 and TW2 postcode area, whatever the building. Buildings on Fir Road, New Road and Bel Lane are within our area. Close to Hanworth, our area also takes in Hampton (1 mile south-east), Hampton Hill (1 mile east), Fulwell (1 mile east), Whitton (2 miles north-east) and West Molesey (2 miles south). Bigger towns within reach include London (13 miles east), City of Westminster (11 miles north-east), Marylebone (12 miles north-east), Kensington (9 miles north-east), St Pancras (13 miles north-east) and Shoreditch (15 miles north-east).
Local landmarks in Hanworth
Locally, jobs take us to sites close to Hampton School, Hampton Academy and Crane Park and the streets around them. The nearest railway station is Hampton station, roughly 1.1 miles south. Well-known places in the area include Teddington Memorial Hospital (1.8 miles east) and Kempton Steam Museum (1.1 miles west). Open spaces near Hanworth include Garden Lake and Oak Avenue Local Nature Reserve.
Site staff or a sealant specialist?
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Your questions answered
Could you schedule work at a campus like St Mary's University for the vacation?
Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Do you work on fire-rated sealing in hotels in Hanworth?
Yes, where fire-rated sealant is the specified product. Work is done room by room so the hotel keeps trading; design and sign-off stay with the designer and building control.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
Who decides which product is used?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
What about RAMS and site documents?
Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.
What will the job cost?
That depends on the job: quantities, access, the product and any phasing. Call for a fixed quote.
Will your applicators have CSCS cards?
Yes. If you need card details for site access, tell us and we will confirm them with the quote.
From enquiry to sign-off
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. In Hanworth, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- We ask for the product and detail your designer has specified.
- We sort the openings by the detail each one needs.
- Old or wrong materials are cut out.
- Mineral wool or other backing is fitted where required.
- We gun the sealant in to the specified depth around each service and tool it.
- We walk the completed areas with you and confirm the records agreed at quote stage.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Point out parking and an unloading spot
- Share the asbestos register for older buildings
Quotes
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. If you have questions first, call 01277 525 020 or email us.
Related advice
Places near Hanworth
Other services in Hanworth
After the work
Problems stay small when the joints are checked regularly. Specifically:
- Treat an open penetration as a priority repair
- Have penetrations checked while they can still be seen
- Check with the data sheet before painting over fire sealant
- Make fire stopping part of every scope that crosses a fire-resisting wall
After the work, brief anyone else working in the area that the openings are now sealed. Any seal cut back for a new service needs reinstating to its tested detail.
On fit-outs, get the fire-stopping specification agreed before the services go in. The designer can then choose details that suit the services planned, and the work runs in step with the M&E.
Do you need fire stopping in Hanworth?
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 what we find most often.
What tends to prompt an enquiry:
- Builders’ foam or ordinary silicone in compartment walls
- Unsealed openings around new pipes and cables
- Old intumescent sealant that has split away
- Damaged fire seals in risers and voids
At a university such as St Mary's University, which lies east of Hanworth, labs, lecture blocks and residences are re-serviced often, so penetration seals are best checked after M&E work.
What to look for in a quote
- Proof of insurance
- The named product and why it was chosen
- Their approach to joint depth and backing
- Will CSCS-carded applicators be on site?
When it isn’t the sealant
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:
- Issuing fire ratings or certificates for seals
- Construction that lacks the fire resistance the seal relies on
- Writing the fire-stopping specification
If in doubt, phone 01277 525 020 or use the quote form and we will say what we think before you book.
What we seal
- Service gaps in risers
- Linear gaps at wall heads
- Small duct penetrations where the tested detail allows
- Joints between fire-resisting walls and floors
- Cable penetrations
- Pipe penetrations