West Sussex · England
New-build mastic & snagging in Felcourt, West Sussex
New build mastic across Felcourt and nearby, with old sealant always removed completely and a 12-month guarantee.
- Messy sealant that spoils new finishes
- Frame joints opening as the plaster dries
- New-build shower sealant that has already split
Joints and finishes in Felcourt homes
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.
In and around Felcourt, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Felcourt is about 2 miles north of East Grinstead, in West Sussex. We provide new build mastic to homes and businesses in Felcourt and nearby. 371 places in West Sussex are on our list, large and small. For nearby work, see our Crawley page.
Jobs for new build mastic in RH19 and RH7 is quoted and booked the same way as anywhere else. That includes homes and businesses on Felcourt Lane, Felcourt Road and Blackberry Road. We also cover Dormans Park (1 mile south-east), Newchapel (1 mile west), Lingfield (1 mile north), Dormansland (1 mile east) and Felbridge (2 miles south-west). We also work in nearby towns such as Crawley (8 miles south-west), Horsham (14 miles south-west), Haywards Heath (12 miles south), Burgess Hill (15 miles south), Broadfield (9 miles south-west) and Bewbush (9 miles south-west).
Landmarks near Felcourt
In Felcourt, that means homes and buildings near Centenary Fields and Imberhorne School. For rail, the closest station is Dormans station, roughly 0.8 miles east of the centre. Other landmarks nearby include Queen Victoria Hospital (1.9 miles south-east) and East Grinstead Museum (2.5 miles south). Open spaces near Felcourt include Hedgecourt Lake.
New build mastic in Felcourt
Developers send us the plot schedule and we work through it. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover. Typical jobs include sealant applied over dusty or wet surfaces and smeared, uneven beads picked up at snagging, on bathrooms & en suites, show homes and windows & doors.
Somewhere as small as Felcourt, 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.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Where
- Felcourt (RH19, RH7)
- Region
- West Sussex
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Get a leaking seal dealt with straight away
- Check bath and shower seals every few months as the house settles
- Report sealant problems to your builder during the snagging period
- Follow the cure time we give you
Avoid standing on the rim of the bath or the edge of the tray while the sealant cures. If a bath or tray moves when you stand in it, get it looked at.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- Mould in or behind the old joints
- When we can work, for business premises
- How easy the joints are to reach
- How much old sealant there is and how hard it is to remove
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
Before you ask for a quote, have a think about:
- Access, such as stairs, a lift or height
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- Photos by email, if that is easy
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or drop us an email.
What the job involves on each surface
Kitchens
Sink joints are wet all the time. We use a sealant suited to kitchens, food-safe where it’s needed.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.
Felcourt: your questions answered
Do you cover smaller places like Felcourt?
Yes. Felcourt is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Dormans station. Can you help?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
Are you an approved applicator?
Yes. We are an ARBOMaster approved applicator.
How long does the job take?
As a guide, most jobs take a few hours in a single home. Bigger jobs take longer, and we’ll tell you how long to expect.
Can you work from my snagging list?
Yes. Send it with photos and we’ll quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Towns and villages near Felcourt
Also in Felcourt
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How the visit works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for most snagging lists, longer for a run of plots. Somewhere as small as Felcourt, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- A sealant chosen for each area goes in and is tooled smooth.
- Finally, each room is checked and you’re given the cure time.
How to prepare
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
- Tell us about any previous sealing or DIY attempts
Get a quote
If you are in Felcourt and need new build mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
Related advice
When to call us in Felcourt
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart and the sealant has to cope with the movement.
These are the problems we’re asked about most:
- Messy sealant that spoils new finishes
- Sealant that never bonded to the surface
- New-build shower sealant that has already split
- Plot mastic for developers ahead of handover
For new homes near Dormans station, it’s worth checking the sealant early, while snags are still fresh.
Comparing quotes
- What product goes in the joint
- How the colour is chosen
- What preparation is included
- What insurance they hold
Landlords, agents and businesses in Felcourt
In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
We also work for property managers and facilities teams in Felcourt and across West Sussex. Several sites can be quoted together, and we’re fully insured for the work.
