West Sussex · England
New Build Mastic in Ashurst Wood
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Ashurst Wood and across West Sussex. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked sealant around new window and door frames
- Gaps opening as the house dries out and settles
- Untidy sealant flagged on a snagging list
Common questions in Ashurst Wood
Do you work for landlords with property near East Grinstead station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Can you do new build mastic in Ashurst Wood?
Yes. We work across London and the South East, and Ashurst Wood is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Do you work through snagging lists?
Yes. We often work straight from a snagging list. We agree the sealant items with you before any work starts.
Where are you based?
We work from Crawley. Our applicators cover Ashurst Wood.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages to suit the site.
What does new build mastic cost?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
What do you need from me for a quote?
Let us know what needs doing and where. We will ask anything else we need to know.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
New build mastic for homes and businesses in Ashurst Wood
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you’re still within the builder’s snagging or warranty period, tell them first. We are often asked to deal with beads laid onto grit and dust from the build and shower seals failing in the first year or two, across windows & doors, kitchens and skirting & floors.
Somewhere as small as Ashurst Wood, 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.
There’s a 12-month guarantee on every job, whatever its size.

- Location
- Ashurst Wood (RH19)
- Region
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What we do, step by step
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like Ashurst Wood, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- Tell us about any water getting in
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
Get a quote
For new build mastic in Ashurst Wood, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Read more
Joints and finishes in Ashurst Wood homes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Ashurst Wood, as everywhere, new build mastic is only as good as the preparation behind it.
Ashurst Wood is about 2 miles south-east of East Grinstead, in West Sussex. Anywhere in RH19, we can carry out new build mastic at your property. Ashurst Wood is one of 371 towns and villages in West Sussex where we work. We also work in Crawley, about 9 miles from Ashurst Wood.
Work in RH19 works the same way as everywhere else we cover. You’ll find streets such as Woods Hill Lane, Wray Close and Woods Hill Close, all of which we cover. We also cover the places around Ashurst Wood: East Grinstead (2 miles north-west), Hammerwood (2 miles north-east), Saint Hill Green (2 miles west), Dormans Park (3 miles north-west) and Dormansland (4 miles north). We also work in nearby towns such as Crawley (9 miles west), Horsham (15 miles west), Haywards Heath (10 miles south-west), Burgess Hill (13 miles south-west), Broadfield (10 miles west) and Bewbush (11 miles west).
Landmarks near Ashurst Wood
In Ashurst Wood, that means homes and buildings near The Maypole Inn, Sackville School and Stoke Brunswick School and the streets around them. For rail, the closest station is East Grinstead station, roughly 2.1 miles north-west of the centre. Nearby you will also find East Grinstead Museum (1.6 miles north-west) and Bolebroke Castle (3.5 miles east). Open spaces near Ashurst Wood include Hedgecourt Lake.
Different surfaces, different methods
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 and baths are filled before sealing.
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. A fresh flexible bead closes them.
Leave it or put it right?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. Around Ashurst Wood, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Ashurst Wood customers choose us
- Rated 4.9 stars on Google
- We’re fully insured
- Sealant colour chosen to suit
- More than 20 years in sealant work
Take a look at how sealant jobs are priced or our reviews.
Also near Ashurst Wood
Also in Ashurst Wood
What we’re called out for in Ashurst Wood
The first winter with the heating on dries a new home quickly. Skirting, frames and worktops pull away slightly.
The most common problems we see are:
- Joints pulling apart as timber shrinks
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
- Gaps behind new kitchen upstands
For new homes near East Grinstead station, it’s worth checking the sealant early, while snags are still fresh.
Before you book anyone
- Whether all the old sealant comes out first
- What guarantee comes with the work
- What happens if the job turns out different
- Is VAT in the price?
What affects the cost of new build mastic
The price is agreed before any work begins. It takes into account:
- Whether there’s mould to deal with
- The product the joint needs
- When we can work, for business premises
- How many areas need sealing
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.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Aftercare tips
To keep the joints looking good and working properly:
- Avoid scourers and strong chemicals on sealant
- Record problems with dated pictures
- Avoid running a DIY bead over the old one
- Check bath and shower seals every few months as the house settles
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and protects the rest of the house.
