Greater London · England
New-build mastic & snagging in Westbourne, Greater London
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Westbourne and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Smeared, uneven beads picked up at snagging
- Gaps behind new kitchen upstands
- Skirting joints opening in the first winter
How it works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours in a single home. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. 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.
- The failed sealant is removed completely.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Mention any parking rules near the property
- Clear items away from the joints we’re working on
- Mention any leaks or damp you’ve noticed
Ask for a quote
If you are in Westbourne and need new build mastic, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Related advice
About our new build mastic in Westbourne
We work in new homes and on new-build sites across Westbourne. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. Common call-outs are for shower seals failing in the first year or two and gaps between new skirting and floors, across plot handovers, kitchens and windows & doors.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, while new homes need a neat, sound finish around frames, baths and kitchens before handover, in Westbourne and beyond.
All our work is covered by our 12-month guarantee.
- Where
- Westbourne (W2, W11, W9)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why it’s worth doing now in Westbourne
DIY kits do not solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Proper removal and preparation are what make it last. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
What you get with us
- Approved under the ARBOMaster scheme
- Rated 4.9 stars on Google
- White, clear, grey or another colour, product permitting
- We leave the area clean and tidy
Read our cost guide or our reviews.
Nearby places to Westbourne
Also in Westbourne
What new build mastic looks like in Westbourne
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near London Paddington station, it’s worth checking the sealant early, while snags are still fresh. As a London address, Westbourne can be tricky for parking: let us know about parking bays, permits or a driveway.
Westbourne is about 1 mile north of Kensington, in Greater London. Homes, rented property, offices and hotels in Westbourne is covered for new build mastic. Every job comes with our 12-month guarantee. Our Greater London coverage runs to 764 places, Westbourne among them.
All of W2, W11 and W9 is within our area for new build mastic, from the main roads to the quietest streets. Whether your property is on Salem Road, Acklam Road and Morgan Road or a nearby road, we can help. Westbourne sits on or near the A404 and A4206. We also cover Westbourne Green (1 mile north-east), Bayswater (1 mile south), Little Venice (1 mile north-east), Maida Vale (1 mile north) and Paddington Green (1 mile east). Larger places within reach include London (5 miles east), St Pancras (3 miles east), Shoreditch (5 miles east), Walthamstow (9 miles north-east), Hoxton (5 miles east) and Whitechapel (5 miles east).
Landmarks near Westbourne
Around Westbourne, our work takes us to homes and buildings near Maida Vale School, Abdus Salam Library and Westminster Academy, among other places. Also close by are Emslie Horniman's Pleasance (0.8 miles north-west) and Cock and Bottle pub (under half a mile south-west). For rail, the closest station is London Paddington station, about 0.8 miles east. Other landmarks nearby include Paddington General Hospital (0.5 miles north) and Greek Orthodox Cathedral Treasury Museum (less than half a mile south-east). The countryside around Westbourne includes Campden Hill and Greville Place nature reserve.
What the job involves on each surface
Plot handovers
Developers can send the plot schedule and specification and we’ll quote. Sealant work across the plot is covered as agreed.
Show homes
In a show home, the sealant is on display. We lay neat, even beads in colours to suit the finishes.
Landlord and commercial work in Westbourne
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Quotes for new build mastic in Westbourne
For a quick quote, just ask. The main things that affect it are:
- How much there is to do
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- When we can work, for business premises
Combining jobs into one visit usually makes better use of the time than several visits. We will send you a clear quote for the lot.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- If someone has resealed it before
- Where the property is
Want a quote for new build mastic? Please call 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
What we cannot put right
In fairness, some problems need a different trade:
- Movement caused by a poorly fitted tray or bath
- Leaking fittings rather than failed sealant
- Cracked trays, tiles or worktops
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think.
Where we work in Westbourne
- Kitchens
- Bathrooms & en suites
- Windows & doors
- Show homes
- Skirting & floors
- Plot handovers
Common questions in Westbourne
Do you work for landlords with property near London Paddington station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Is Westbourne in your area for new build mastic?
Yes, Westbourne is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Do you guarantee your work?
Yes. Every job comes with our one-year guarantee.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Do you do commercial work?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
How much does new build mastic cost in Westbourne?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Are you insured?
Yes. Full insurance covers our work.