Greater London · England
New Build Mastic in Coombe Hill
Plot mastic for developers and snagging failed sealant in new homes for Coombe Hill, backed by a one-year guarantee. Ask us for a quote.
- Frame joints opening as the plaster dries
- Worktop and upstand sealant coming away
- New-build shower sealant that has already split
About our new build mastic in Coombe Hill
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water gets into the floor or walls. Common call-outs are for leaking shower tray seals in a new home and sealant applied over dusty or wet surfaces, across skirting & floors, kitchens and plot handovers.
From brand-new flats to converted terraces with new flooring, London has every kind of floor. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement, in Coombe Hill as anywhere.
You’re covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.
- Place
- Coombe Hill (SW15, KT2)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Coombe Hill
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Coombe Hill, the repair is bigger than the sealant job would have been.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
Why book with us
- Experience in homes, commercial sites and hotels
- Old sealant always removed completely
- Colour agreed with you before we start
- Sanitary silicone with an anti-fungal additive in wet areas
Take a look at our cost guide or customer reviews.
Landlords, agents and businesses in Coombe Hill
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
How to look after the new joints
Aftercare is simple:
- Keep photos and emails about snagging items
- Wipe joints with warm soapy water
- Watch for new gaps as the house dries out
- Report sealant problems to your builder during the snagging period
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing so moisture does not sit on the sealant.
Early snagging is easier snagging. Left alone, a small crack can become a leak.
New build mastic around Coombe Hill
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
For new homes near Norbiton station, it’s worth checking the sealant early, while snags are still fresh.
Coombe Hill is about 2 miles north-east of Kingston upon Thames, in Greater London. Homes, rented property, offices and hotels in Coombe Hill is covered for new build mastic, old or new, large or small. The work is guaranteed for a year. Across Greater London, we cover 764 places, Coombe Hill among them. Our London page covers work nearby, about 9 miles away.
Every address in SW15 and KT2 is covered for new build mastic. Whether your property is on Keswick Avenue, Derwent Avenue and Robin Hood Lane or anywhere close by, we can help. Coombe Hill is on the A308, which makes it straightforward to reach. Other places close to Coombe Hill include 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). We also work in nearby towns such as 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).
Landmarks near Coombe Hill
Around Coombe Hill, our work takes us to homes and buildings near Coombe Girls' School, Canbury School and Richmond Park. The nearest railway station is Norbiton station, about 1.6 miles south-west of the centre. Nearby you will also find Bentall Centre (2.2 miles south-west) and Kingston Hospital (1.4 miles south-west). Green spaces nearby include Kingston Hill Road area and Fishpond Wood and Beverley Meads.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
When to call us in Coombe Hill
The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
The problems people normally mention when they call are:
- Cracked sealant around new window and door frames
- New-build shower sealant that has already split
- Cracks appearing as a new home settles
- Sealant work across a run of new homes
Coombe Hill is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What your quote should include
- Are they insured?
- Which colour the sealant will be
- How hidden problems are handled
- What the cure time is
Common questions in Coombe Hill
Can parking be tricky for a visit in Coombe Hill?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you work for landlords with property near Norbiton station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.
Should I go to my builder first?
Start with the builder if you’re in the snagging or warranty period. Once that’s done, or if they will not put it right, we will cut it out and reseal it.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Do you work for developers?
Yes. We work through plots to your schedule, room by room. Tell us the plots and the joints involved for a clear quote.
How long does the job take?
A typical job takes a few hours for most snagging lists, longer for a run of plots, including preparation and clearing up. Your quote will say how long we expect yours to take.
How it works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work begins. The work usually takes a few hours in a single home. In Coombe Hill, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
- Mention any tricky access
How to get a quote
We don’t publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Advice
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How we quote for new build mastic
The quote reflects the job in front of us. We take into account:
- Which sealant suits the joint
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- When we can work, for business premises
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Helping us quote
When you contact us, it’s useful to know:
- A few pictures by email, if you can
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and give you a clear price.