Greater London · England
New Build Mastic in Wimbledon
New-build sealant joints in Wimbledon need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Gaps opening as the house dries out and settles
- Cracked sealant around new window and door frames
- Gaps between new skirting and floors
Questions from Wimbledon
Is Wimbledon in your area for new build mastic?
Yes. We work across London and the South East, and Wimbledon is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Can parking be tricky for a visit in Wimbledon?
Parking in Wimbledon, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Wimbledon and the rest of Greater London.
Do you work for developers?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send the schedule and any specification and we’ll give you a quote.
Can new sealant go on top of the old bead?
No. We always remove the existing bead, the joint cleaned and primed where needed, before resealing.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint.
How long does new build mastic take?
A typical job takes anything from a few hours to several days, depending on the number of plots. We will confirm how long when we quote.
New build mastic in Wimbledon
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. We work on show homes, skirting & floors and windows & doors, and common reasons people get in touch are second-fix sealing on new plots and shower seals failing in the first year or two.
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.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Place
- Wimbledon (SW19, SW20, SW17, SW18)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Wimbledon
What else we do in Wimbledon
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Settlement cracks that need a surveyor
- Movement caused by a poorly fitted tray or bath
- Leaks from pipes, valves or wastes, which need a plumber
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Surfaces we seal
- Plot handovers
- Show homes
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Kitchens
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to several days, depending on the number of plots, including the tidy-up. In a London area like Wimbledon, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- The finished joints are checked and the cure times given.
How to prepare
- Try not to wet indoor joints just before the visit
- Clear the area around the work
- Tell us if parking is tricky
Get a quote
Getting a quote is simple: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.
Related advice
New homes and floors in Wimbledon
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. Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent.
For new homes near Wimbledon station, it’s worth checking the sealant early, while snags are still fresh.
Wimbledon is about 7 miles south of City of Westminster, in Greater London. Jobs in Wimbledon get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 764 places across Greater London, from the larger towns to small villages. You can also see our page for London, roughly 7 miles from Wimbledon.
We cover every part of SW19, SW20, SW17 and SW18 for new build mastic. That includes homes and businesses on High Street Mews, High Street and Church Road and the roads around them. You’ll find Wimbledon on the A218 and B235, which makes it straightforward to reach with everything needed for new build mastic. Close by, we work in Crooked Billet (1 mile west), Wimbledon Park (1 mile north), Wimbledon Chase (1 mile south), Copse Hill (1 mile south-west) and Merton Park (1 mile south-east). We also work in nearby towns such as London (7 miles north-east), City of Westminster (7 miles north), Marylebone (7 miles north-east), Kensington (5 miles north), St Pancras (8 miles north-east) and Shoreditch (9 miles north-east).
Landmarks near Wimbledon
Typical jobs here are in homes near Willington School, Dog & Fox pub and Cannizaro Park and the streets around them. There’s a railway station in Wimbledon itself: Wimbledon station. Nearby you will also find Atkinson Morley Hospital (1.2 miles west) and Wimbledon Museum (less than half a mile west). The countryside around Wimbledon includes Battersea Park Lake and Merton Park Green Walks.
What the job involves on each surface
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed to keep callbacks down.
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
What affects the quote in Wimbledon
For a quick quote, just ask. The main things that affect it are:
- Working hours on commercial sites
- Whether there’s mould to deal with
- The number of rooms or windows
- How easy the joints are to reach
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Helping us quote
When you call or email, it’s useful to know:
- The problem you’ve noticed
- If someone has resealed it before
- Whether it’s a home or a business
- A few pictures by email, if you can
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Signs you need new build mastic in Wimbledon
When the heating goes on in the first winter, the house dries fast. Gaps open along skirting, frames and worktops.
If you can see any of these, it’s time to have the joints looked at:
- Cracks appearing as a new home settles
- Smeared, uneven beads picked up at snagging
- Sealant that never bonded to the surface
- Gaps between new skirting and floors
Wimbledon is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
What to look for in a quote
- What preparation is included
- Who turns up on the day
- Whether the sealant suits the joint
- What happens if the job turns out different
Why it’s worth doing now in Wimbledon
If you are still in the builder’s snagging or warranty period, ask them to put it right first. If it keeps failing or is not dealt with, we can reseal it properly. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why book with us
- 180+ five-star Google reviews
- Sanitary silicone with an anti-fungal additive in wet areas
- We never seal over old sealant
- Every job guaranteed for a year
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.