Kew fire stopping
Work needed on a service penetration in Kew? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Old intumescent sealant that has split away
- Damaged fire seals in risers and voids
- Builders’ foam or ordinary silicone in compartment walls
Fire stopping in Kew
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Kew, done properly
Sealant is the specified answer for plenty of openings, such as metal pipes, cables and some small ducts where the detail covers them. Other openings need collars, wraps, batts, pillows or boards. If the detail calls for something other than sealant, we say so rather than force sealant into it. If you have open linear gaps along the top of fire-resisting walls and damaged fire seals in risers and voids, we can put it right. Whoever orders the work in Kew, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Fit-outs and M&E works in London buildings often leave service penetrations open behind ceilings and in risers. 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.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Kew (W4, TW9, TW8)
- Region
- Greater London
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Site staff or a sealant specialist?
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
Nearby places to Kew
More services for Kew
Different surfaces, different methods
Plastic pipes
Plastic waste pipes through slabs come up often. The detail decides whether sealant alone is enough.
Linear joints
Joints at the top of partitions may need to move as the slab above deflects. We use the product and backing the detail names for that movement, with no gaps along the run.
Commercial clients in Kew
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.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Kew can sit alongside others in a wider programme.
Leave it or put it right?
An unsealed opening affects more than fire safety: smoke, noise and draughts pass through them every day. Sealing them to the specified detail deals with the fire risk first. In a London building, a failed joint rarely affects only one party: water travels through shared structures, and a small leak becomes a dispute between occupiers. Dealing with it early is simpler for everyone.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote.
Why us?
- Joints cleaned back to sound surfaces
- Our applicators hold CSCS cards
- 12 months’ guarantee on every job
- Fixed quotes based on photos, drawings or a visit
See our cost guide and our accreditations.
Where services cross fire walls in Kew
London’s office and residential buildings are refitted constantly, and each round of cabling or pipework can leave open penetrations. Penetrations are sealed with the specified product, to its tested detail, under the building’s own permit rules. Approved Document B is the English guidance that covers fire stopping around openings and penetrations. From 2 September 2029, BS 476 references are being taken out of Approved Document B, leaving BS EN 13501-2 classification as the route, subject to the Government’s transitional arrangements. What we install is set by the specification, and it goes in to the tested detail.
For a site team at a college like Ealing and West London College (2.2 miles north-west of Kew), fire-rated sealing is best scheduled after the summer works. Wherever services are added at a hospital such as Clayponds Hospital (to the north-west of Kew) the compartment line has to be made good with the specified product. At a retail site such as Kew Retail Park, which lies south of Kew, walls between units may be fire-resisting, so services added in a refit need the specified seal.
Kew is about 2 miles south of Acton, in Greater London. Across the W4 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 764 places in Greater London. There’s a separate page for London, roughly 8 miles from Kew.
Business premises anywhere in W4, TW9 and TW8 are within our area for service penetrations. We cover commercial and managed buildings on Kew Road, Maze Road and Kent Road and the roads nearby. Kew sits on or close to the A3000. Nearby places we also cover include Strand-on-the-Green (1 mile north), Grove Park (1 mile east), North Sheen (1 mile south), Gunnersbury (1 mile north) and Turnham Green (1 mile east) for service penetrations. Bigger towns within reach include London (8 miles east), City of Westminster (6 miles east), Marylebone (6 miles north-east), Kensington (3 miles east), St Pancras (7 miles north-east) and Shoreditch (9 miles east).
Landmarks near Kew
In Kew, that means premises near Library for Iranian Studies, Kew Green and Chiswick School and the streets around them. Nearby too are Kew College Prep (less than half a mile south-west) and Bull's Head pub (under half a mile north). For rail, the closest station is Chiswick station, roughly 0.5 miles south-east. Well-known places in the area include Livat Hammersmith (2.2 miles east) and Barnes Hospital (1.5 miles south-east). The countryside around Kew includes Kew Gardens Lake and Duke's Hollow.
Cost factors for service penetrations
Each job is priced on its own details. The main factors are:
- Phasing around occupants
- Which sealant the job calls for
- How much existing material needs removing
- Location, for remote and island sites
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.
Details that help us quote
A good diagnosis starts with the right details. Tell us:
- What the building is and how it’s used
- The product your specification calls for
- Approximate linear metres or a joint schedule
- Photos of the joints, close up and from further back
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or send photos by email.
On site: what to expect
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before we move to the next. In Kew, most buildings stay in use during the work, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- We read the specification, drawings or penetration schedule you send and raise any questions before we price.
- On site, each opening is checked against the tested detail it is meant to follow.
- Unsuitable fillers and loose debris are taken out of each opening.
- Mineral wool or other backing goes in wherever the detail asks.
- We apply the specified sealant to the depth and around the services as the detail shows.
- Openings that need a collar, wrap, batt or other product are flagged to you rather than filled with sealant.
What we need from you
- For older buildings, check the asbestos register before work
- Share your working hours and any access restrictions
- Tell us what induction or permit system the site runs
Ask for a quote
For a fixed quote, speak to us on 01277 525 020 or email a schedule or drawings with the site address and an outline of the work. You can also send details through our quote form.
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Questions we’re asked in Kew
Will you plan work around the academic year at somewhere like Richmond American University London?
Yes. We plan campus work around teaching, exams and residence turnarounds. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Will you take on work at estates like Kew Retail Park, close to Kew?
Yes, sites like Kew Retail Park are within our area, along with the rest of Kew. A few photos and the unit address let us price the work.
What happens if old sealant might contain asbestos?
The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
Do the same rules apply to fire stopping in Scotland?
Scotland sets its own building regulations, with Technical Handbooks, and England uses Approved Document B. Either way, we install the specified sealant to its tested detail.
Do you work in Kew?
Yes. Sites across Kew are covered.
Will you come and look before quoting?
That depends on the size and complexity of the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.