West Sussex · England
Balls Cross New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Balls Cross and across West Sussex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Joints pulling apart as timber shrinks
- Sealant applied over dusty or wet surfaces
- Worktop and upstand sealant coming away
About our new build mastic in Balls Cross
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’re dealing with plot mastic for developers ahead of handover and untidy sealant flagged on a snagging list, we can help.
Older homes in small places like Balls Cross often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
We stand behind the work with a 12-month guarantee.
- Location
- Balls Cross (GU28)
- Wider area
- West Sussex
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Open a window or run the fan after bathing
- Report sealant problems to your builder during the snagging period
- Avoid scourers and strong chemicals on sealant
- Record problems with dated pictures
Avoid standing on the rim of the bath or the edge of the tray in the first few weeks. Report any movement in a bath or tray.
Early snagging is easier snagging. Small faults turn into leaks if left.
Nearby places to Balls Cross
Other services in Balls Cross
How the visit works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours for most snagging lists, longer for a run of plots. Somewhere as small as Balls Cross, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked for movement before work begins.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Before we arrive
- Tell us about any water getting in
- Clear the area around the work
- For business premises, tell us about site rules or sign-in
Getting a quote
Asking for a quote is easy: let us know what needs doing and where and its rough size. Photos by email help us understand the job.
Advice
What the job involves on each surface
Kitchens
As a new house dries, worktops and walls shift a little, opening gaps behind the upstand. We reseal them with a flexible sealant.
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Any mould that needs treating
- Whether the work is at height
- When we can work, for business premises
- How many rooms, windows or areas are involved
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Helping us quote
To make quoting easier, please include:
- The problem you’ve noticed
- Any access issues, like height or stairs
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or email us.
Joints and finishes in Balls Cross 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 Balls Cross, as everywhere, new build mastic is only as good as the preparation behind it. Whether the job is in Balls Cross itself or nearby, the right material for each joint matters as much as a neat finish.
Balls Cross is about 12 miles west of Horsham, in West Sussex. Our applicators cover new build mastic for homes and businesses in Balls Cross and nearby. Balls Cross is one of 371 towns and villages in West Sussex we cover. Crawley is on our list too, about 18 miles from Balls Cross.
All of GU28 is within our area for new build mastic. Close by, we work in Kirdford (2 miles east), Mackerel's Common (2 miles north-east), Plaistow (3 miles north-east), Ifold (4 miles north-east) and Wisborough Green (4 miles east). Further out, we also cover Horsham (12 miles east), Chichester (15 miles south-west), Littlehampton (15 miles south), Rustington (15 miles south), Storrington (10 miles south-east) and Billingshurst (6 miles east).
What’s near Balls Cross
Nearby you will also find Lodsworth Castle (4.7 miles south-west). Open spaces near Balls Cross include The Mens and Shillinglee Lake.
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
When something else is needed
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Leaking fittings rather than failed sealant
- A tray or bath that is not properly supported, until it’s fixed
- Structural cracks in walls or ceilings
If in doubt, call 0345 464 0079 or email us and we will say what we think before you book.
What we seal
- Show homes
- Windows & doors
- Skirting & floors
- Kitchens
- Plot handovers
- Bathrooms & en suites
Leave it or put it right?
A hairline gap at a skirting can wait, but a leaking seal cannot. Not sure whether yours can wait? You can call 0345 464 0079 or drop us an email with a few pictures and we’ll tell you. In a small place like Balls Cross, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why Balls Cross clients choose us
- Neat joints and a tidy finish
- Experience in homes, commercial sites and hotels
- A sealant colour to suit the surroundings
- Fully insured
Read what affects the cost and our reviews.
Your questions about new build mastic in Balls Cross
What guarantee comes with new build mastic in Balls Cross?
All our work, in Balls Cross and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you do new build mastic in Balls Cross?
Yes, Balls Cross is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Why has my new-build shower seal failed already?
A new house dries and settles for a year or two, and sealant is often rushed onto dusty, unprimed surfaces. Both lead to early failure.
Can you reseal over the builder’s sealant?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
When is the best time to reseal in a new build?
Where water is getting through, don’t wait. Hairline cosmetic gaps can wait until the house has settled.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.