Greater London · England
New Build Mastic in West Kensington
Plot mastic for developers and snagging failed sealant in new homes in West Kensington, with a one-year guarantee on every job. Call for a quick quote.
- Smeared, uneven beads picked up at snagging
- Gaps opening as the house dries out and settles
- Sealant that never bonded to the surface
New build mastic around West Kensington
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent.
As a London address, West Kensington can be tricky for parking: let us know about parking bays, permits or a driveway. If you’ve bought a new home near Kensington Olympia station, the sealant around baths, showers and frames is worth checking in the first year or two.
West Kensington is about 1 mile south of Kensington, in Greater London. From the centre of West Kensington to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 764 places across Greater London, from the larger towns to small villages.
Here we cover the W14, SW6 and SW5 postcode area for new build mastic. We cover properties on Sun Road, Star Road and Field Road and the roads around them. Close by, we work in North End (1 mile west), Brook Green (1 mile north-west), Fulham (1 mile south), Hammersmith (1 mile west) and Brackenbury Village (1 mile north-west). Further out, we also cover London (5 miles east), City of Westminster (3 miles north-east), Marylebone (3 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (10 miles north-east).
Landmarks near West Kensington
Typical jobs here are in homes near Avonmore Primary School, Gwendwr Garden and Seven Stars pub, among other places. The closest station to West Kensington is Kensington Olympia station, roughly 0.5 miles north. Other landmarks nearby include Chelsea Stadium Tour And Museum (1 mile south-east) and Fulham Hospital (0.6 miles south-west). Open spaces near West Kensington include Campden Hill and The Long Water.
New build mastic for homes and businesses in West Kensington
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. If you’re still within the builder’s snagging or warranty period, tell them first. We work on plot handovers, skirting & floors and bathrooms & en suites, and common reasons people get in touch are kitchen sealant that has pulled off the wall and cracked sealant around new window and door frames.
From brand-new flats to converted terraces with new flooring, London has every kind of floor. Every joint between floor, skirting and threshold has to cope with some movement.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- West Kensington (W14, SW6, SW5)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for new build mastic
Every job gets its own quote. These are the things that affect it:
- The product the joint needs
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- If someone has resealed it before
- The address or postcode of the job
- Photos by email, if that’s easy
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes anything from a few hours to several days, depending on the number of plots. In West Kensington, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- The old bead comes out in full, with no layer left behind.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Finally, each room is checked and you’re given the cure time.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Clear the area around the work
- Mention any parking rules near the property
Get a quote
If you are in West Kensington and need new build mastic, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
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Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Ventilate bathrooms well, especially in the first year
- Follow the cure time we give you
- Avoid running a DIY bead over the old one
- Keep pictures and emails about snagging items
Don’t stand on the bath edge or the lip of the tray while the sealant cures. If a bath or tray moves when you stand in it, get it looked at.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in saves a harder job later.
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so just mention it when you contact us.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
What sealant work cannot fix
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Structural cracks in walls or ceilings
- Leaking fittings rather than failed sealant
- Broken tiles or a split tray
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Show homes
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Skirting & floors
- Windows & doors
Also near West Kensington
Also in West Kensington
West Kensington: your questions answered
Do you cover West Kensington for new build mastic?
Yes, West Kensington is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Can you help a landlord with a rental near Kensington Olympia station?
Yes. We work for landlords and agents as well as homeowners. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will send you a clear quote.
Will you just run a new bead over the existing one?
No. We always remove the existing bead, then clean and prime the joint, before resealing.
What do you need from me for a quote?
Let us know what needs doing and where. We’ll ask anything else we need to know.
Where are you based?
We work from Crawley. We cover West Kensington and the rest of Greater London, along with the rest of our area.
Do you work through snagging lists?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before any work starts.
Is it normal for sealant to crack in a new home?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
My new home is still under warranty. Should I contact you?
Report it to the builder first while you are covered. Once that’s done, or if they will not put it right, we’ll cut it out and reseal it.
Landlord and commercial work in West Kensington
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Why act early in West Kensington
The builder is normally the first port of call while the snagging or warranty period runs. If it keeps failing or isn’t dealt with, we can reseal it properly. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble for homes in West Kensington.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, phone 0345 464 0079 or email us for an honest opinion and a quote.
Why book with us
- ARBOMaster approved applicator
- Fully insured
- Arbo and Everbuild products
- White, clear, grey or another colour, product permitting
Take a look at what affects the cost or what customers say.