Mastic Sealing in Coombe Hill
Work needed on a mastic joint in Coombe Hill? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Draughts at frames across a block
- Complaints coming in block by block
- Window mastic that has split and shrunk
Mastic sealing for Coombe Hill sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Surface by surface
External movement joints
The joint width has to suit the movement and the sealant’s capability, often around 2:1 width to depth, as the manufacturer advises.
Commercial and mixed-use buildings
Tenants in commercial buildings need to keep trading, so we plan around them.
How we handle mastic sealing in Coombe Hill
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint. We’ll confirm the colours available for the specified product. We work on external wall and movement joints, communal entrances and stairwells and communal kitchens and washrooms, and the usual reasons a site gets in touch are leaks at window and door perimeters and draughts at frames across a block. Most enquiries from Coombe Hill start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
For managing agents in Coombe Hill, resident access, notice periods and the building’s rules shape the job. We work to the agent’s notice and access plan, so residents know what’s happening.
Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.
- Location
- Coombe Hill (SW15, KT2)
- Region
- Greater London
- Cover
- 12 months on every job
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
On site: what to expect
When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work normally takes a day or two for a single block, longer for an estate programme. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- We finish each building before moving to the next.
Preparing the site
- Share your working hours and any access restrictions
- Tell us what induction or permit system the site runs
- For older buildings, check the asbestos register before work
Request a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email the details over.
Related advice
What sealant work can’t fix
Our job is the joint, not everything around it. Sealant alone won’t deal with:
- Frames that are rotten, warped or broken
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Asbestos-containing sealant, which we don’t remove
If in doubt, speak to us on 01277 525 020 or email us and we’ll say what we think.
Where we work in Coombe Hill
- Window and door perimeters on blocks
- External wall and movement joints
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- Communal kitchens and washrooms
Planned mastic for Coombe Hill portfolios
In London, mastic work on a block goes through the managing agent or landlord, with notice to residents. We fit the programme to your notice periods. Three care or nursing homes sit less than 2 miles from Coombe Hill. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings.
If your remit includes a building such as Robin Hood Primary School, frame and door mastic can be programmed for the holidays. Landlords with units on estates such as St. George's Industrial Estate, 1.8 miles to the west of Coombe Hill, can bring frame, door and external mastic across several units into one programme. Student accommodation around universities such as Kingston University (Kingston Hill Campus), less than half a mile to the south of Coombe Hill, is usually managed block by block, which suits a planned mastic programme.
Coombe Hill is about 2 miles north-east of Kingston upon Thames, in Greater London. Across the SW15 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across Greater London, 764 places are covered, including Coombe Hill. Our London page has more on work in that area, about 9 miles away.
Business premises anywhere in SW15 and KT2 are within our area. We cover commercial and managed buildings on Keswick Avenue, Derwent Avenue and Robin Hood Lane. Coombe Hill sits on or close to the A308, useful when we plan access and materials. Just outside Coombe Hill, we also work in Kingston Vale (1 mile east), Putney Vale (1 mile east), Coombe (1 mile south), Norbiton (2 miles south-west) and Motspur Park (2 miles south-east). Further afield, our area takes in London (9 miles north-east), City of Westminster (7 miles north-east), Marylebone (8 miles north-east), Kensington (5 miles north-east), St Pancras (9 miles north-east) and Shoreditch (10 miles north-east).
Around Coombe Hill
Recent enquiries here include premises near Coombe Girls' School, Canbury School and Richmond Park and the streets around them. The nearest railway station is Norbiton station, about 1.6 miles south-west. Nearby you’ll also find Bentall Centre (2.2 miles south-west) and Kingston Hospital (1.4 miles south-west). Not far away are Kingston Hill Road area and Fishpond Wood and Beverley Meads.
Questions about Coombe Hill
Do you take on jobs in Coombe Hill where loading and access are tightly controlled?
Yes, we plan every London job around the building’s own access rules. Share the building’s contractor rules and we’ll work to them. The ULEZ covers the whole of Greater London, which we allow for
Can you quote for a block close to Norbiton station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Give us the building’s details and say how residents are notified, and we will quote and plan to suit.
Can people stay in the building while you reseal?
Occupiers stay in the building throughout. We flag any areas that need internal access well before the dates so you can arrange it with occupiers.
Which sealant will you use?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
How long do sealant joints last?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
When to bring in a specialist
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What affects the price in Coombe Hill
Before we quote, we look at:
- How accessible the joints are
- The size and state of each joint
- Travel to remote or island sites
- Specialist products, such as fire-rated or hygienic sealants
The product called for affects the cost, and so does the preparation. Access, phasing and site requirements come into it too.
What to include in your enquiry
A few photos plus some basic facts will normally do. Please tell us:
- The postcode of the building
- Anything awkward about access or site hours
- Any specification or named product
- What the building is and how it’s used
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.
Places near Coombe Hill
What else we do in Coombe Hill
Commercial clients in Coombe Hill
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so the building keeps working while we do.