West Sussex · England

Westmeston New Build Mastic

New-build sealant joints in Westmeston need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.

  • Skirting joints opening in the first winter
  • Gaps opening as the house dries out and settles
  • Gaps behind new kitchen upstands

Book new build mastic in Westmeston

Looking after it afterwards

No joint lasts for ever, but care makes a real difference. Our tips:

  • Act quickly if a seal starts to leak
  • Do not seal over failed sealant yourself
  • Clean sealant with mild detergent, not abrasives
  • Keep pictures and emails about snagging items

Photograph failed sealant before it’s redone and keep the builder’s replies. It’s useful if you need to raise other issues later.

Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you.

New build mastic in Westmeston, done properly

A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. We work on plot handovers, bathrooms & en suites and skirting & floors, and the jobs we see most are internal frame sealant that has split and sealant work across a run of new homes.

Somewhere as small as Westmeston, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Where
Westmeston (BN6)
Wider area
West Sussex
Guarantee
12 months on all our work
Price
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026
Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles

DIY sealant or a professional job?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.

What new build mastic looks like in Westmeston

London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

For new homes near Hassocks station, it’s worth checking the sealant early, while snags are still fresh. In and around Westmeston, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.

Westmeston is about 4 miles south of Burgess Hill, in West Sussex. We provide new build mastic to homes and businesses in Westmeston and nearby. Westmeston is one of 371 towns and villages in West Sussex we cover for new build mastic.

All of BN6 is within our area for new build mastic. Nearby, we also carry out new build mastic in Ditchling (1 mile north), Keymer (2 miles north-west), Clayton (2 miles west), Hassocks (2 miles north-west) and Hurst Wickham (3 miles north-west). Within a short drive, we also cover Crawley (14 miles north), Horsham (14 miles north-west), Worthing (14 miles south-west), Haywards Heath (6 miles north), Shoreham-by-Sea (9 miles south-west) and Lancing (11 miles south-west).

Landmarks near Westmeston

Locally, jobs take us to homes and businesses close to The Bull Hotel and Downlands Community School. The nearest railway station is Hassocks station, roughly 2.1 miles north-west. A little further out are Clayton Castle (1.7 miles west) and The Dene Hospital (4.7 miles north-west). Green spaces nearby include Ditchling Beacon and Ladies Mile.

Map of Westmeston © OpenStreetMap contributors

Surface by surface

Kitchens

Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. We reseal them with a flexible sealant.

Show homes

Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish. We will plan around viewing times.

Landlord and commercial work in Westmeston

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Common questions in Westmeston

Is Westmeston within the area you cover?

Yes, Westmeston is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Do you cover Westmeston for new build mastic?

Yes. We work across London and the South East, and Westmeston is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.

Do you hold any approvals?

Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.

Can you work on commercial sites?

Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.

Where do you work from?

We work from Crawley. We cover Westmeston and the rest of West Sussex.

Will you just run a new bead over the existing one?

No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.

Do you work for letting agents?

Yes. We work for homeowners, landlords, letting agents, businesses and hotels in Westmeston.

Do you work through snagging lists?

Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before we start.

Why act early in Westmeston

Small cosmetic gaps can wait for the house to settle, but a leaking seal can’t. Not sure whether yours can wait? You can ring 0345 464 0079 or email us with a few photos and we will give you a straight answer. Older cottages and farmhouses around Westmeston can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Leaving a failed joint usually makes the job bigger, not smaller. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.

Why book with us

  • Every job guaranteed for a year
  • Sealant colour chosen to suit
  • 4.9 on Google from 180+ five-star reviews
  • Full insurance on every job

Take a look at how sealant jobs are priced or what customers say.

How the visit works

At the end, we look at the finished work together. The work normally takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. Somewhere like Westmeston needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. Each joint is checked for movement before any work starts.
  2. Old sealant is cut out and the joints cleaned.
  3. We make sure the joints are dry and prime them if needed.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. We check every joint and leave you with the cure times.

Preparing for the visit

  • Clear items away from the joints we are working on
  • Let us know if you’ve seen damp or leaks
  • Mention any tricky access

Getting a quote

If you are in Westmeston and need new build mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Ask for a quote

Related advice

What we can’t put right

Honest advice matters more to us than a booking, so here’s what new sealant won’t do:

  • Structural cracks in walls or ceilings
  • Plumbing faults behind the sealant
  • Movement caused by a poorly fitted tray or bath

If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.

What we seal

  • Plot handovers
  • Skirting & floors
  • Show homes
  • Bathrooms & en suites
  • Kitchens
  • Windows & doors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job