Greater London · England
Woodcote Green New Build Mastic
New-build sealant joints in Woodcote Green need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Beads laid onto grit and dust from the build
- Plot mastic for developers ahead of handover
- Gaps opening as the house dries out and settles
New build mastic in Woodcote Green, done properly
We never seal over a failed new-build bead. Fresh silicone cannot bond to the old layer, so it all comes out before we clean, dry and reseal. Typical jobs include gaps behind new kitchen upstands and second-fix sealing on new plots, on bathrooms & en suites, show homes and skirting & floors.
Across London, commercial floors have movement joints that break down under heavy foot traffic, and new homes need their plot mastic finished properly before handover, in Woodcote Green and beyond.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Woodcote Green (CR8, SM6, SM5)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Cracked trays, tiles or worktops
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
If in doubt, call 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Show homes
- Skirting & floors
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Plot handovers
Keeping the joints in good condition
After the cure time, these simple habits help:
- Check bath and shower seals every few months as the house settles
- Resist patching a failed seal with a tube from the DIY shop
- Avoid scourers and strong chemicals on sealant
- Keep water off fresh sealant until it has cured
Keep photos of the joints and any snagging correspondence with your builder. It helps if anything else comes up during the warranty period.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak in a busy bathroom.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
New homes and floors in Woodcote Green
Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent. 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.
Woodcote Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Woodcote Green is about 1 mile west of Purley, in Greater London. If you need new build mastic in Woodcote Green, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Greater London from our Crawley base, Woodcote Green included. Our area takes in 764 places across Greater London. Our London page covers work nearby.
Work in CR8, SM6 and SM5 works the same way as everywhere else we cover. Whether your property is on Farm Lane, Elton Road and Green Lane or anywhere close by, we can help. Other places close to Woodcote Green include Little Woodcote (1 mile west), Woodcote (1 mile south-east), Peaks Hill (1 mile east), Roundshaw (1 mile north-east) and Russell Hill (1 mile north-east). We also work in nearby towns such as London (11 miles north), City of Westminster (12 miles north), Marylebone (12 miles north), Kensington (11 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).
Near you in Woodcote Green
We work in homes and buildings around Laleham Lea School, Carshalton Park and Woodcote Primary School, among other places. Woodcote Green’s nearest station is Reedham (London) station, about 1.3 miles south-east. Nearby you will also find St George's Walk (3.2 miles north-east) and Croydon Airport Visitor Centre (1.8 miles north-east). Green spaces nearby include Roundshaw Downs and Duppas Hill.
What we are called out for in Woodcote Green
Sealant is often one of the last jobs before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
The problems people usually mention when they call are:
- Internal frame sealant that has split
- Worktop and upstand sealant coming away
- Cracks appearing as a new home settles
- Messy sealant that spoils new finishes
For new homes near Reedham (London) station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- Whether all the old sealant comes out first
- What insurance they hold
- How long the guarantee is
- How hidden problems are handled
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for most snagging lists, longer for a run of plots. In Woodcote Green, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- Each area is checked and left with its cure time.
How to prepare
- Clear the area around the work
- Let us know about parking restrictions
- Tell us about any water getting in
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you are ready, phone 0345 464 0079 or email us.
Related advice
Woodcote Green questions
Is Woodcote Green in your area for new build mastic?
Yes. Our work covers London and the South East, and Woodcote Green is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing.
Is parking an issue for new build mastic in Woodcote Green?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Do you take on second-fix sealing for builders?
Yes. We seal plots to the developer’s programme. Tell us the plots and the joints involved and we’ll quote.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
What does new build mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Nearby places to Woodcote Green
Other services in Woodcote Green
Surface by surface
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens, food-safe where it’s needed.
Show homes
Show homes need sealant that looks right from day one. Every bead is neat and coloured to suit the room.
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.