West Sussex · England
Thakeham New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Thakeham, with a one-year guarantee on every job. Ask us for a quote.
- New-build shower sealant that has already split
- Gaps behind new kitchen upstands
- Sealant work across a run of new homes
New build mastic in Thakeham, done properly
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. In both, preparation makes the difference. We work on kitchens, plot handovers and bathrooms & en suites, and people most often call us about gaps opening as the house dries out and settles and frame joints opening as the plaster dries.
Somewhere as small as Thakeham, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
You are 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
- Thakeham (RH20)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The process
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes a few hours for most snagging lists, longer for a run of plots for a typical job. In a small place like Thakeham, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- 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.
Before we arrive
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- For business premises, tell us about site rules or sign-in
Getting a quote
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.
Advice
What happens if it’s left?
A quick bead over the top of the old sealant can look fine at first, but it won’t bond to the old layer. Taking it all out and starting again is the only way to get a lasting seal. Older cottages and farmhouses around Thakeham can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What you get with us
- Homes, businesses and hotels
- We’re fully insured
- ARBOMaster approved applicator
- 180+ five-star Google reviews
Take a look at what affects the cost and what customers say.
When to call us in Thakeham
Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Neither lasts long.
Common reasons people contact us are:
- Cracks appearing as a new home settles
- Sealant work across a run of new homes
- Shower seals failing in the first year or two
- Frame joints opening as the plaster dries
For new homes near Pulborough station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- What happens if the job turns out different
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- Who turns up on the day
What affects the quote in Thakeham
For a quick quote, just ask. The main things that affect it are:
- Any working-time requirements on site
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
Before you ask for a quote, have a think about:
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
What the job involves on each surface
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.
New homes and floors in Thakeham
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Thakeham, as everywhere, new build mastic is only as good as the preparation behind it.
Thakeham is about 8 miles north of Worthing, in West Sussex. If you need new build mastic in Thakeham, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover West Sussex. Our area takes in 371 places across West Sussex, from the larger towns to small villages. Our Crawley page covers work nearby (15 miles or so).
We work across the RH20 postcode area for new build mastic. Local streets include The Street, Bramble Lane and Cray's Lane. If you are just outside Thakeham, we cover Abingworth (1 mile south-west), Warminghurst (1 mile south-east), Goose Green (1 mile north-east), West Chiltington (1 mile north-west) and Heath Common (1 mile south). Within a short drive, we also cover Crawley (15 miles north-east), Horsham (9 miles north-east), Worthing (8 miles south), Haywards Heath (15 miles east), Burgess Hill (13 miles east) and Littlehampton (10 miles south-west).
What’s near Thakeham
For rail, the closest station is Pulborough station, roughly 4.1 miles west of the centre. Well-known places in the area include The Storrington And District Museum (2.2 miles south-west). Open spaces near Thakeham include Knepp Wildland and Chanctonbury Hill.
Looking after it afterwards
After the cure time, these simple habits help:
- Put sealant faults on your snagging list early
- Record problems with dated photos
- Wipe joints with warm soapy water
- Act quickly if a seal starts to leak
Avoid standing on the rim of the bath or the edge of the tray in the first few weeks. If a bath or tray moves when you stand in it, get it looked at.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Towns and villages near Thakeham
What else we do in Thakeham
Thakeham: your questions answered
Can you do new build mastic in Thakeham?
Yes. We work across London and the South East, and Thakeham is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
Can you help a landlord with a rental near Pulborough station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you don’t need to watch us work.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
My new home is still under warranty. Should I contact you?
Start with the builder if you’re in the snagging or warranty period. Once that is done, or if they won’t put it right, we will cut it out and reseal it.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few photos.
Do you use white or clear sealant?
White and clear are the most common, but sealant comes in other colours too. We match the colour to the finish and agree it with you.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.