Construction and new-build mastic in West Heath, Greater London
Sealant work in West Heath for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, quoted at a fixed price.
- Frame perimeters left unsealed or poorly sealed
- Sanitary sealant damaged by following trades
- Frame gaps too wide for sealant alone
Construction mastic in West Heath
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Site staff or a sealant specialist?
Redoing a failed joint normally costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Some joints are best left to specialists: for instance 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.
How we handle construction mastic in West Heath
Refurbishment work needs a slightly different approach from new build. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone, and on older buildings we ask for the asbestos survey before disturbing anything. New and existing joints then get the same preparation. If you have internal caulk splitting as the building dries out and oversized or tapered gaps around new frames, we can help, whatever the surface. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in West Heath it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Construction in a London area such as West Heath means working on constrained sites: limited storage, booked deliveries and access shared with other trades. Mastic is typically one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
What our 12-month guarantee covers is the way we did the job: 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.
- Location
- West Heath (DA7, DA16, SE2)
- Wider area
- Greater London
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
What sealant work can’t fix
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Joints damaged after sign-off by following trades
- Deciding which fire-stopping product a penetration needs
- Frame gaps too wide for sealant, which the installer needs to correct
If in doubt, ring 01277 525 020 or send details through our quote form and we will say what we think before you book.
Where we work in West Heath
- Window and door perimeters
- Sanitary and kitchen joints
- Brick and block movement joints
- Cladding and panel joints
- Internal decorators’ caulk
- Floor and skirting junctions
On site: what to expect
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, with the work itself usually taking a few days on a modest refurbishment and longer on multi-plot or multi-storey schemes. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- Sealing follows the programme as areas are released.
- Problems we find, such as oversized gaps, are raised straight away.
- Final snagging is completed and the 12-month guarantee applies.
Preparing the site
- Move anything stored against the joints
- Have the specification and drawings to hand
- Share the asbestos register for older buildings
Getting a fixed quote
To get a fixed quote, call 01277 525 020 or email us with the site address and an outline of the work. You can also send details through our quote form.
Related advice
Common questions from West Heath clients
Would you work within a site like Erith and District Hospital?
Yes, healthcare and care buildings are part of our work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Will you take on work at estates like Kencot Close Business Park, close to West Heath?
Yes. Our area takes in West Heath and its surroundings, with estates and business parks such as Kencot Close Business Park included. To start, just give us a call on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.
Do you guarantee new-build sealant work?
Each package is signed off with a 12-month workmanship guarantee. Damage by others after we have finished isn’t covered.
How do we ask for a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photos and a postcode.
Do you take on mastic snagging only?
Yes, we can. Share the list and photographs, and a fixed quote follows, with the work timed to your handover date.
How long before the joints can be used?
We will confirm how long the chosen product needs to cure, and sign any area that should be left alone.
Can the building stay open while you work?
Typically, yes. We phase the work so most of the building stays in use.
New build and refits around West Heath
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in West Heath. Deliveries are booked and storage is tight, so mastic materials come in as needed. West Heath has a number of hotels close by, all within 2 miles. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included.
Projects at schools like Hillsgrove Primary School work to term dates, so mastic is programmed tightly. New units and refits on sites such as Kencot Close Business Park (to the north-east of West Heath) need their panel and perimeter joints sealed to the specification.
West Heath is about 1 mile north-east of Welling, in Greater London. Any commercial site in West Heath is covered. We work across 764 places in Greater London. There’s a separate page for London, about 10 miles away.
We cover the DA7, DA16 and SE2 postcode districts for mastic packages. Buildings on Hurst Lane, Hadlow Road and Denton Road are within our area for mastic packages. Access to West Heath is via the A206 among other routes. Just outside West Heath, we also work in Abbey Wood (1 mile north-west), Crook Log (1 mile south), Lessness Heath (1 mile north-east), Upton (1 mile south) and Bexleyheath (1 mile south-east). A short drive away, we cover London (10 miles west), City of Westminster (12 miles west), Marylebone (12 miles west), Kensington (14 miles west), St Pancras (11 miles west) and Shoreditch (9 miles west).
Around West Heath
Recent enquiries here include premises near Co-op pub, Lesnes Abbey Woods and Welling School, among other places. For rail, the closest station is Abbey Wood station, roughly 1 mile north. Well-known places in the area include Broadway Shopping Centre (1.7 miles south-east) and Bexley Hospital (1.4 miles south). The countryside around West Heath includes Crossness Nature Reserve.
Also near West Heath
Also in West Heath
For managing agents and facilities managers
Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, with each stage agreed with your site contact.
Different surfaces, different methods
External facade and movement joints
Brickwork, blockwork and panel movement joints need a sealant with the right movement capability. Depth is controlled with backing rod so the bead bonds to two sides only.
Snagging before handover
Snagging is often the final mastic stage. We can work through the snag list area by area.
Signs you need construction mastic in West Heath
Dust is the enemy of adhesion on a construction site. Dust, film adhesive, damp and grease on the joint faces prevent a proper bond, so preparation matters as much here as on a reseal.
It’s worth sending us details if you spot any of the following:
- Oversized or tapered gaps around new frames
- Inconsistent sealant finishes from plot to plot
- Missed perimeter joints on a new elevation
- Bath and shower joints scraped during the final clean
For a contractor working at a hospital such as Erith and District Hospital, 1.8 miles east of West Heath, perimeter and facade sealing is planned around patients and deliveries.
Before you book anyone
- How long is the guarantee, and what does it include?
- Proof of insurance
- How they handle RAMS and site documents
- Their pre-qualification and accreditations