West Brompton construction mastic
Construction mastic in West Brompton, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- A long mastic snag list close to completion
- Missed perimeter joints on a new elevation
- Caulk cracking where joints are moving more than expected
Construction mastic across West Brompton
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
How a job runs
In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. Most London premises stay occupied while we’re on site, so zones and timings are agreed with whoever manages the building. Phased work keeps the rest of the building in use.
- We price from the drawings, specification and programme you send.
- A fixed quote sets out the scope, the products and the sequence.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Every joint is prepared, set to depth and sealed with the specified product.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Point out parking and an unloading spot
- Send your site hours and access windows
Getting a fixed quote
For a fixed quote, speak to us on 01277 525 020 or send photos by email, telling us the site location and the nature of the job. Our quote form is another easy route.
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Construction mastic in West Brompton, done properly
Mastic is often where a new building first shows its quality to the client. A smeared bead round a window or a gap behind a worktop ends up on the snag list, and every return visit costs time. Our aim is joints that pass at the first inspection, area by area through the programme. We work on window and door perimeters, brick and block movement joints and floor and skirting junctions, and what we are called in for most is failed sealant in an existing building being refurbished and perimeter gaps outside the sealant’s range. A single leaking joint is often how a building in West Brompton first comes to us: we look at the rest while we’re there and tell you what we find.
A great deal of London construction is refurbishment of occupied or part-occupied buildings, alongside new blocks. New frames, overcladding and fit-outs all end in perimeter and facade joints, frequently with occupants close by.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.
- Where
- West Brompton (SW6, SW10, SW5)
- Region
- Greater London
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
Nearby places to West Brompton
More services for West Brompton
What sealant work can’t fix
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Joint design decisions that belong to the architect or engineer
- Oversized gaps that need packing or adjustment by others
If you are not sure, just phone 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.
What we seal
- Internal decorators’ caulk
- Window and door perimeters
- Floor and skirting junctions
- Brick and block movement joints
- Cladding and panel joints
- Sanitary and kitchen joints
When to bring in a specialist
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
Common problems we fix in West Brompton
On a live site, contamination is the biggest threat to a new joint. Dust, film adhesive, damp and grease on the joint faces prevent a proper bond.
Site and facilities staff are often the first to spot these:
- Perimeter gaps outside the sealant’s range
- Missed perimeter joints on a new elevation
- A mastic package split between trades with no clear owner
- Caulk cracking where joints are moving more than expected
Projects at colleges like St Mellitus Theological College, 0.6 miles to the north-east of West Brompton, tend to run to term dates, so the mastic is planned tightly.
Before you book anyone
- Will CSCS-carded applicators be on site?
- Do they follow the manufacturer’s priming guidance?
- What the guarantee covers, and for how long
- Their public liability cover
Work for main contractors and building owners
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Mastic packages on West Brompton sites
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in West Brompton. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. The area within 2 miles of West Brompton holds plenty of hotels. Hotel extensions and refits typically have to fit around bookings, so mastic dates are tight.
Extensions at sites like Chelsea and Westminster Hospital, 0.6 miles east of West Brompton, normally sit beside working departments, and the mastic follows strict access rules. For contractors on a campus like BIMM University, 0.5 miles south of West Brompton, facade and perimeter sealing has to fit around students and term dates.
West Brompton is about 1 mile south of Kensington, in Greater London. Looking for construction mastic in West Brompton? We can help. Our Greater London coverage takes in 764 places.
Postcode districts covered here: SW6, SW10 and SW5 for mastic packages. If your site is on Sun Road, Star Road and Farm Lane or close by, send details and we will quote for mastic packages. With the A3218 and A3220 nearby, West Brompton is easy to get to with materials and equipment. Close to West Brompton, our area also takes in Earl's Court (1 mile north), Walham Green (1 mile south), World's End (1 mile south-east), Little Chelsea (1 mile east) and South Kensington (1 mile north-east). Nearby towns on our patch include London (4 miles east), City of Westminster (3 miles north-east), Marylebone (3 miles north-east), St Pancras (4 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (10 miles north-east).
Landmarks near West Brompton
Locally, jobs take us to sites close to The London Oratory School, The Fulham Boys School and Gwendwr Garden and the streets around them. Also close by are Natural History Museum Library and Archives (1.1 miles north-east) and Coleherne public house (less than half a mile north-east). There’s a railway station in West Brompton itself: West Brompton station. Well-known places in the area include Kensington Arcade (1 mile north) and Chelsea Stadium Tour And Museum (under half a mile south-east). For a walk, there’s The Long Water and WWT London Wetland Centre.
How the job changes by surface
External facade and movement joints
External movement joints often need primer, depending on the substrate. Primer goes on where the sealant maker calls for it.
Fire-rated sealant where specified
Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested detail. The design and sign-off of fire stopping sit with the designer, principal designer or fire engineer.
FAQs: West Brompton
Could you schedule work at a campus like BIMM University for the vacation?
Yes. Tell us the term dates, vacation periods and access windows, and we’ll plan the work around them. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Does your area include sites such as Brompton Cross District Shopping Centre., near West Brompton?
Yes. We cover West Brompton and the area around it, including industrial estates, business parks and retail parks such as Brompton Cross District Shopping Centre.. A few photographs and the unit address let us price the work.
Will you stick to the specified products?
Specification first, then the maker’s instructions. Preparation, backing and depth follow the product guidance.
Do your applicators hold CSCS cards?
We’re CHAS accredited and a Constructionline member, and our applicators hold CSCS cards. We confirm any paperwork you need with the quote.
Is colour matching possible?
It depends on the product. Some ranges are wide, others limited, so the available colours are confirmed with the quote.
Can you work plot by plot or floor by floor?
We seal plot by plot or floor by floor as areas are released. The sequence is settled with your site team and updated as the programme moves.
Do you have public liability insurance?
Yes. We are fully insured, and the certificate can go with your quote.