Greater London · England
Brasted New Build Mastic
New build mastic for Brasted and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Plot mastic for developers ahead of handover
- Gaps between new skirting and floors
- Joints pulling apart as timber shrinks
What affects the quote in Brasted
The quote reflects the job in front of us. We look at:
- How many rooms, windows or areas are involved
- Access and height
- How much there is to do
- Working hours on commercial sites
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Photos by email, if that’s easy
- The address or postcode of the job
- What’s wrong with the joints now
- The rough size of the job
We quote each job on its own, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details and send photos if you have them.
New build mastic for homes and businesses in Brasted
Snagging sealant properly means taking the failed bead out completely. Fresh silicone can’t bond to the old layer, so the joint is cut out, cleaned, dried and resealed. If you’re dealing with gaps behind new kitchen upstands and leaking shower tray seals in a new home, we can put it right, whatever the surface.
New flats are going up across London, many of them in larger developments. Snagging there often goes through the developer or managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Brasted (TN16)
- Region
- Greater London
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
We’ll always be straight with you, so here’s what sealant cannot fix:
- A tray or bath that isn’t properly supported, until it’s fixed
- Plumbing faults behind the sealant
- Structural cracks in walls or ceilings
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Joints and surfaces we work on
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Show homes
- Kitchens
- Windows & doors
What the job involves on each surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant.
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
How the visit works
When we arrive, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before work begins. The work normally takes a few hours in a single home. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Brasted. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- 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.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
Getting a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
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What new build mastic looks like in Brasted
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent.
If you’ve bought a new home near Dunton Green station, the sealant around baths, showers and frames is worth checking in the first year or two. Brasted is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Brasted is about 3 miles west of Sevenoaks, in Greater London. We carry out new build mastic for homes and businesses in Brasted and the surrounding area, as part of our work across Greater London. Brasted is one of 764 towns and villages in Greater London where we work for new build mastic. There’s also a page for Crawley, roughly 17 miles from Brasted.
Every address in TN16 is within our area for new build mastic. We cover properties on High Street, Station Road and Watermill Close. Close by, we work in Sundridge (1 mile east), Brasted Chart (1 mile south), Chipstead (2 miles east), Chevening (2 miles north-east) and Bessels Green (2 miles east). Further out, we also cover Orpington (7 miles north), New Cross (15 miles north-west), Thornton Heath (13 miles north-west), Croydon (11 miles north-west), East Dulwich (15 miles north-west) and Plumstead (15 miles north).
Near you in Brasted
Typical jobs here are in homes near The White Hart pub. Brasted’s nearest station is Dunton Green station, roughly 3.1 miles north-east of the centre. Nearby you’ll also find Sevenoaks Museum (3.8 miles east) and Tandridge Priory (3.8 miles south-west). Green spaces nearby include Betsom's Hill and Dryhill Nature Reserve.
Why deal with it now?
The builder is usually the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. 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.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why Brasted customers choose us
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
See our cost guide or what customers say.
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Photograph failed sealant before it’s redone
- Wait for the cure time before using a resealed shower
- Clean sealant with mild detergent, not abrasives
- Check bath and shower seals every few months as the house settles
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers to help keep mould away.
Do not let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you, so raise it early.
Places near Brasted
What else we do in Brasted
Your questions about new build mastic in Brasted
Can you help a landlord with a rental near Dunton Green station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Do you cover Brasted for new build mastic?
Yes. Our work covers London and the South East, and Brasted is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before resealing.
Can I send you my snagging list?
Yes. Send the list and a few pictures of the sealant items. We’ll tell you if anything on it is not a sealant job.
Should I wait before resealing?
For failed seals that let water through, the best time is now. Cosmetic gaps can wait until the first year or two of movement has passed.
How long does new build mastic take?
It depends on the size of the job, but most jobs take a few hours in a single home. We will tell you when we quote.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.