West Sussex · England
New-build mastic & snagging in Fontwell, West Sussex
New build mastic for Fontwell, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Worktop and upstand sealant coming away
- Leaking shower tray seals in a new home
- Cracked caulk along new skirting
What we do, step by step
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes anything from a few hours to several days, depending on the number of plots, including the tidy-up. Somewhere as small as Fontwell, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- Keep children and pets away from the work area
- Move anything stored near the joints
- Mention any tricky access
Ask for a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or email us.
Advice
How we handle new build mastic in Fontwell
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover using the right product for each joint. We work on show homes, kitchens and skirting & floors, and the jobs we see most are sealant applied over dusty or wet surfaces and internal frame sealant that has split.
For a small place like Fontwell, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
The work is covered for a year after we finish. If anything isn’t right with it, call 0345 464 0079 or send us an email.

- Place
- Fontwell (BN18, PO20)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
New homes and floors in Fontwell
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.
For new homes near Barnham station, it’s worth checking the sealant early, while snags are still fresh.
Fontwell is about 5 miles north of Bognor Regis, in West Sussex. If you need new build mastic in Fontwell, it’s easy to get a quote: please call 0345 464 0079 or email us. We cover West Sussex from our Crawley base. Across West Sussex, we cover 371 places, Fontwell among them. Portsmouth is on our list too, about 19 miles from Fontwell.
We cover every part of the BN18 and PO20 postcode area for new build mastic and the streets around it. We cover properties on London Road, Cooke Road and Steeplechase Way and the roads around them. Neighbouring places we cover for new build mastic include Eastergate (1 mile south), Slindon (1 mile north-east), Nyton (1 mile south-west), West Barnham (1 mile south) and Slindon Common (1 mile east). Larger places within reach include Worthing (11 miles east), Bognor Regis (5 miles south), Chichester (6 miles west), Selsey (10 miles south-west), Littlehampton (6 miles south-east) and Lancing (14 miles east).
Around Fontwell
Typical jobs here are in homes near Eastergate CofE Primary School. Fontwell’s nearest station is Barnham station, about 1.6 miles south. Well-known places in the area include Tote Copse Castle (2.2 miles south-west) and Arundel and District Hospital (3.7 miles east). Not far away are Bignor Hill and WWT Arundel.
Why it’s worth doing now in Fontwell
The builder is generally the first port of call while the snagging or warranty period runs. If it keeps failing or isn’t dealt with, we can reseal it properly. Where a wall is exposed, as many are in small places like Fontwell, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why Fontwell clients choose us
- White, clear, grey or another colour, product permitting
- Sanitary silicone with an anti-fungal additive in wet areas
- Colour picked to suit the job
- More than 20 years in sealant work
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Landlords and agents in Fontwell can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Fontwell: your questions answered
Can you do new build mastic in Fontwell?
Yes, Fontwell is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll send you a clear quote.
I let a flat near Barnham station. Can you help?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Are you insured?
Yes. We are fully insured.
Can you match the sealant colour to my new kitchen or bathroom?
That depends on what the joint meets: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We’ll agree it with you first.
Is it worth resealing while the house is still settling?
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 will you be here?
Most jobs take anything from a few hours to several days, depending on the number of plots, including preparation and clearing up. Your quote will say how long we expect yours to take.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
Do you take on second-fix sealing for builders?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send us the plot schedule and we’ll quote.
Nearby places to Fontwell
Other services in Fontwell
When it is not the sealant
Before booking, it’s worth knowing the limits:
- Your warranty claim itself, which is between you and the builder
- Cracking that points to a structural problem
- Movement caused by a poorly fitted tray or bath
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
What we seal
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Plot handovers
- Show homes
- Kitchens
What the job involves on each surface
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. A fresh flexible bead closes them.
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Aftercare tips
So the new joints stay in good condition:
- Avoid scourers and strong chemicals on sealant
- Open a window or run the fan after bathing
- Get a leaking seal dealt with straight away
- Keep water off fresh sealant until it has cured
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing to help keep mould away.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
Do you need new build mastic in Fontwell?
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly and cracks appear in the sealant.
Common reasons people contact us include:
- Frame joints opening as the plaster dries
- Shower seals failing in the first year or two
- Sealant that never bonded to the surface
- Joints pulling apart as timber shrinks
Around Fontwell, as everywhere, new build mastic is only as good as the preparation behind it.
Before booking anyone
- How long the guarantee is
- What the quote includes, VAT included or not
- How long to leave it before use
- Which colour the sealant will be
