West Sussex · England
New-build mastic & snagging in Crawley Down, West Sussex
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Crawley Down and across West Sussex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant applied over dusty or wet surfaces
- Skirting joints opening in the first winter
- Cracks appearing as a new home settles
The process
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work starts. The work generally takes anything from a few hours to several days, depending on the number of plots. For a job in Crawley Down, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each joint is checked for movement before any work starts.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- 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
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
How to get a quote
To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.
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New build mastic in Crawley Down, done properly
For builders and developers, we work through plots to the schedule you give us. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover with a sealant suited to each area. We work on show homes, kitchens and windows & doors, and the jobs we see most are smeared, uneven beads picked up at snagging and internal frame sealant that has split.
In smaller places like Crawley Down, new homes tend to come as small developments or single plots. Each still needs its sealant and floor joints finished properly from day one.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Crawley Down (RH10)
- Wider area
- West Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Crawley Down
Also in Crawley Down
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
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.
What happens if it’s left?
Resealing everything on a snagging list in one visit is generally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times to plan around. In an older home around Crawley Down, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Ask us for a quote and we’ll explain what it covers.
Why us?
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
- Tidy, careful work
- 20+ years of sealant experience
See our cost guide and our reviews.
New build mastic around Crawley Down
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near East Grinstead station, the sealant around baths, showers and frames is worth checking in the first year or two.
Crawley Down is about 3 miles west of East Grinstead, in West Sussex. For new build mastic in and around Crawley Down, please call 0345 464 0079 or send us an email for a quick quote. We cover West Sussex from our Crawley base, Crawley Down included. We cover 371 towns and villages across West Sussex, from the larger towns to small villages.
All of RH10 is within our area for new build mastic, from the main roads to the quietest streets. You will find streets such as Station Road, Forest Close and Burleigh Way. Neighbouring places we cover for new build mastic include Furnace Wood (1 mile north), Snow Hill (1 mile north), Turners Hill (1 mile south), Domewood (1 mile north) and Felbridge (2 miles north-east). We also work in nearby towns such as Crawley (5 miles west), Horsham (11 miles west), Haywards Heath (9 miles south), Burgess Hill (12 miles south), East Grinstead (3 miles east) and Broadfield (6 miles west).
Local landmarks in Crawley Down
In Crawley Down, that means homes and buildings near Imberhorne School. Crawley Down’s nearest station is East Grinstead station, roughly 2.5 miles east of the centre. Well-known places in the area include Queen Victoria Hospital (3.5 miles east) and Effingham Park Motor Museum (1.4 miles north-west). Not far away are Hedgecourt Lake.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Leaks from pipes, valves or wastes, which need a plumber
- A tray or bath that isn’t properly supported, until it’s fixed
- Deciding who is responsible under a builder’s warranty
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Bathrooms & en suites
- Plot handovers
- Show homes
- Windows & doors
- Skirting & floors
- Kitchens
What we are called out for in Crawley Down
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and can tear.
Signs it’s time to call us include:
- Sealant work across a run of new homes
- Frame joints opening as the plaster dries
- Joints pulling apart as timber shrinks
- Kitchen sealant that has pulled off the wall
In and around Crawley Down, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- Whether they seal over old material or remove it
- Whether VAT is included
- What the cure time is
- How hidden problems are handled
What the job involves on each surface
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
Plot handovers
Taking time over preparation reduces return visits. We clean out building dust before sealing and prime where the product needs it.
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Resist patching a failed seal with a tube from the DIY shop
- Open a window or run the fan after bathing
- Put sealant faults on your snagging list early
- Photograph failed sealant before it’s redone
Leave the sealant for the cure time we give you before showering or bathing. Silicone is usually left for about a day before water reaches them.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
Common questions in Crawley Down
Will you come out to Crawley Down?
Yes. Crawley Down is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you help a landlord with a rental near East Grinstead station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you when we finish.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Are you fully insured?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.