Greater London · England
New-build mastic & snagging in Force Green, Greater London
Our applicators work in Force Green on plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly.
- Sealant that never bonded to the surface
- Gaps opening as the house dries out and settles
- Internal frame sealant that has split
FAQs for Force Green
Is parking a problem for a job in Force Green?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
I let a flat near Oxted station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often rushed onto dusty, unprimed surfaces. Either can make it fail early.
Should I wait before resealing?
If the seal has failed and water is getting in, do it now. Hairline cosmetic gaps can wait until the house has settled.
Is there a guarantee?
Yes. All our work carries a 12-month guarantee.
Do I need to be at home?
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.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used.
About our new build mastic in Force Green
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first and if that stalls, we can do it. If you’re dealing with gaps between new skirting and floors and new-build shower sealant that has already split, we can put it right.
Across London, commercial floors have movement joints that break down under heavy foot traffic, while new homes need a neat, sound finish around frames, baths and kitchens before handover.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Place
- Force Green (TN16)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
Good habits help new joints last longer. A few tips:
- Watch for new gaps as the house dries out
- Record problems with dated pictures
- Report sealant problems to your builder during the snagging period
- Wipe joints with warm soapy water
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing so moisture does not sit on the sealant.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black saves a harder job later.
What new build mastic looks like in Force Green
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or 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.
If you’ve bought a new home near Oxted station, the sealant around baths, showers and frames is worth checking in the first year or two. Force Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Force Green is about 5 miles west of Sevenoaks, in Greater London. For new build mastic in and around Force Green, please ring 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Greater London. Across Greater London, we cover 764 places, and Force Green is one of them. For nearby work, see our Crawley page (16 miles or so).
We work across the TN16 postcode area for new build mastic. Neighbouring places we cover for new build mastic include Westerham (1 mile south), South Street (2 miles north-west), Moorhouse Bank (2 miles south-west), Tatsfield (2 miles north-west) and Titsey (2 miles west). Further out, we also cover Orpington (7 miles north), New Cross (14 miles north), Thornton Heath (12 miles north-west), Croydon (10 miles north-west), East Dulwich (14 miles north-west) and Plumstead (14 miles north).
Local landmarks in Force Green
Typical jobs here are in homes near The Olde House At Home Public House, among other places. For rail, the closest station is Oxted station, roughly 3.8 miles south-west of the centre. A little further out are Tandridge Priory (2.7 miles south-west). Green spaces nearby include Dryhill Nature Reserve and Betsom's Hill.
What sealant work can’t fix
Before booking, it’s worth knowing the limits too:
- Movement caused by a poorly fitted tray or bath
- Damaged fittings that need replacing
- Leaks from pipes, valves or wastes, which need a plumber
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly before booking.
Joints and surfaces we work on
- Windows & doors
- Plot handovers
- Bathrooms & en suites
- Show homes
- Skirting & floors
- Kitchens
Why it’s worth doing now in Force Green
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot and most come down to preparation. 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.
Combining jobs into one visit is normally more efficient than separate visits. We’ll give you a clear quote for the lot.
Why us?
- Arbo and Everbuild products
- Anti-fungal silicone where joints get wet
- One-year guarantee on every job
- White, clear, grey or another colour, product permitting
Read our cost guide and what customers say.
Nearby places to Force Green
Other services in Force Green
What affects the quote in Force Green
We quote each job individually. This is what makes a difference:
- Access and height
- The amount of work
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will go through it with you.
Asking for a quote
What to tell us when you ask for a quote:
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Whether it’s a home or a business
- Any previous sealing or DIY work
Want a quote for new build mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
How the job changes by surface
Kitchens
New-kitchen sealant is often applied in a rush. We take it out and reseal neatly, colour-matched where it shows.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. The joint is stripped back before the new bead goes in.
The process
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes 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 go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details, and photos are welcome.