West Sussex · England
Balcombe New Build Mastic
Problem with your new-build sealant joints in Balcombe? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Smeared, uneven beads picked up at snagging
- Beads laid onto grit and dust from the build
- Sealant work across a run of new homes
New build mastic in Balcombe
For builders and developers, we work through plots to the schedule you give us. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over using the right product for each joint. If you have gaps opening as the house dries out and settles and sealant that never bonded to the surface, we can put it right, on windows & doors, bathrooms & en suites and plot handovers alike.
Older homes in small places like Balcombe often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
You get a one-year guarantee, the same in Balcombe as everywhere else we work.
- Location
- Balcombe (RH17)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for most snagging lists, longer for a run of plots and we leave things clean and tidy. For a village or hamlet like Balcombe, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- We clean off dust from the build and prime the surfaces where the product needs it.
- A sealant chosen for each area goes in and is tooled smooth.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Let us know if you’ve seen damp or leaks
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
Ask for a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Related advice
Balcombe: your questions answered
Can you help a landlord with a rental near Balcombe station?
Yes, rental work is part of what we do. You can call 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.
Do you cover Balcombe for new build mastic?
Yes. Our work covers London and the South East, and Balcombe is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
Do you guarantee your work?
Yes. Every job comes with a one-year guarantee.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early. Rushed application on dusty surfaces makes it worse.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can I send you my snagging list?
Yes. Send it with photos and we will quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
What does new build mastic cost?
We do not 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. You will get a clear quote before we start.
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
What affects the cost of new build mastic
You will get a clear quote before we start. It’s based on:
- The number of rooms or windows
- The amount of work
- Whether the work is at height
- When we can work, for business premises
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
What to tell us for a quote
When you call or email, these details help:
- The problem you’ve noticed
- How we’d reach the joints
- Where the property is
- How many joints, rooms or windows are involved
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Follow the cure time we give you
- Put sealant faults on your snagging list early
- Avoid running a DIY bead over the old one
- Look at the sealant regularly in the first couple of years
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers so moisture doesn’t sit on the sealant.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small and protects the rest of the house.
Why act early in Balcombe
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot. In a small place like Balcombe, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why Balcombe clients choose us
- A choice of colours where the product allows
- Old sealant always removed completely
- Sealant colour chosen to suit
- You choose the colour before work begins
Read our cost guide or our reviews.
Also near Balcombe
More services for Balcombe
Joints and finishes in Balcombe 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.
In and around Balcombe, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Balcombe station, the sealant around baths, showers and frames is worth checking in the first year or two.
Balcombe is about 4 miles north of Haywards Heath, in West Sussex. Across the RH17 area, we cover new build mastic for homes and businesses. Our West Sussex coverage runs to 371 places, and Balcombe is one of them.
All of RH17 is within our area for new build mastic. If you need new build mastic at a property on London Road, Stockcroft Road and Deanland Road or anywhere close by, we can help. With the B2036 close by, Balcombe is simple for us to get to for new build mastic. Close by, we work in Balcombe Lane (1 mile north), Brook Street (2 miles south), Staplefield (2 miles south-west), Worth Abbey (3 miles north) and Whitemans Green (3 miles south). Within a short drive, we also cover Crawley (5 miles north-west), Horsham (8 miles west), Haywards Heath (4 miles south), Burgess Hill (7 miles south), East Grinstead (7 miles north-east) and Broadfield (4 miles north-west).
Around Balcombe
There’s a railway station in Balcombe itself: Balcombe station. A little further out are Princess Royal Hospital (4.9 miles south) and Cuckfield Museum (3.5 miles south). The countryside around Balcombe includes Blunts Wood and Paiges Meadow and Tilgate Lake.
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Structural cracks in walls or ceilings
- Broken tiles or a split tray
- Leaks from pipes, valves or wastes, which need a plumber
Not sure which it is? You can phone 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Kitchens
- Show homes
- Bathrooms & en suites
- Plot handovers
- Windows & doors
- Skirting & floors