Construction and new-build mastic in Kew, Greater London
Work needed on a mastic package in Kew? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- A mastic package split between trades with no clear owner
- Mastic snags holding up handover
- Existing joints on a refurb that need cutting out and resealing
Construction mastic in Kew
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Quoting for work in Kew
A fixed quote reflects the actual work. It takes account of:
- How accessible the joints are
- How much existing material needs removing
- How much there is to seal
- The site’s rules and procedures
No two sites price the same: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
What to include in your enquiry
Diagnosis starts before we arrive. Let us know:
- Whether the building will be occupied during the work
- Specification clauses that apply
- Whether an asbestos survey exists
- A wide shot and a close-up of the area
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Construction mastic for commercial buildings in Kew
Since 2005 we’ve worked alongside main contractors, developers and fit-out firms. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. To price a package in Kew, send drawings and the specification through our quote form. We work on cladding and panel joints, window and door perimeters and floor and skirting junctions, and the failures we are asked to look at most are perimeter gaps outside the sealant’s range and bath and shower joints scraped during the final clean. Whether you call it commercial sealant work, mastic application or joint sealing, in Kew it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around Kew, as across London, much of the work is refurbishing existing buildings as well as building new ones. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Where
- Kew (W4, TW9, TW8)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Site staff or a sealant specialist?
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 you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Joints damaged after sign-off by following trades
- Approving fire stopping as compliant
If you are not sure, just speak to us on 01277 525 020 or send details through our quote form and we will give you a straight answer before you book.
Where we work in Kew
- Window and door perimeters
- Brick and block movement joints
- Internal decorators’ caulk
- Cladding and panel joints
- Sanitary and kitchen joints
- Floor and skirting junctions
Contractors’ notes for Kew
Site traffic in Kew falls within London’s ULEZ, like everywhere else in Greater London. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. The area within 2 miles of Kew holds plenty of hotels. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included.
Hospital estates such as Clayponds Hospital (1.2 miles north-west of Kew) tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. When a college such as Ealing and West London College, 2.2 miles north-west of Kew, builds or refurbishes, the mastic package usually has to fit around students and staff. On a campus such as Richmond American University London, 0.7 miles to the north of Kew, new teaching buildings and residences are normally built and refurbished around the academic year.
Kew is about 2 miles south of Acton, in Greater London. Commercial clients in Kew can call on us for mastic packages. Kew is one of 764 places we cover in Greater London for mastic packages. Sites around London have their own page, roughly 8 miles from Kew.
Anyone looking for construction mastic in W4, TW9 and TW8 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on Kew Road, Maze Road and Kent Road are within our area. Kew sits on or close to the A3000. Close to Kew, our area also takes in 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). Nearby towns on our patch 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).
Local landmarks in Kew
Recent enquiries here include premises near Library for Iranian Studies, Kew Green and Chiswick School. Also close by are Kew College Prep (less than half a mile south-west) and Bull's Head pub (less than half a mile north). The closest station to Kew is Chiswick station, about 0.5 miles south-east of the centre. A little further out are Livat Hammersmith (2.2 miles east) and Barnes Hospital (1.5 miles south-east). For a walk, there’s Kew Gardens Lake and Duke's Hollow.
Maintenance after handover
Regular inspection catches problems early. In particular:
- Use the product the specification names
- Bring the mastic contractor in after the last trades are through
- Record the products used in the O&M file
- Keep scrapers and abrasive pads off new beads
Expect some settlement in the first months. The right product in each joint copes with that, but caulk in a joint that moves more than expected may crack. If that happens, let us know.
A missed perimeter seal on one window can wet the reveal and the plaster inside. That usually means redoing finishes in a completed area, and a delay to handover. Checking perimeters before internal finishes go on avoids it.
Surface by surface
Fire-rated sealant where specified
Fire-rated sealant is one type of fire-stopping product. Other products are used for some services and gaps. Tell us what records you need and we’ll confirm with the quote.
Snagging before handover
Damaged, missed or untidy joints make up most snag lists. We price snagging as part of the package or as a separate visit.
On site: what to expect
We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. In Kew, most buildings stay in use during the work, so zones and timings are agreed with whoever manages the building. Areas are handed back as each section is finished.
- First we take quantities off the drawings and read through the specification.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Every joint is prepared, set to depth and sealed with the specified product.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- Share your working hours and any access restrictions
- Move anything stored against the joints
- For older buildings, check the asbestos register before work
Request a quote
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.
Advice
FAQs: Kew
Do you take on work at healthcare sites like Clayponds Hospital?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you cope with the access rules in a London building?
Yes. Inductions, permits and timed loading are routine for us in London. The building manager’s rules go straight into our method.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.
Is colour matching possible?
That depends on the product. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Will you come and look before quoting?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit before quoting.
What accreditations do you hold?
Our applicators are CSCS-carded, and we hold CHAS accreditation and Constructionline membership. Tell us what site paperwork you need and we will confirm with the quote.
Does weather affect external mastic work?
Conditions have to suit the product before external work starts. Sealing in poor conditions risks adhesion failure.