West Sussex · England
New-build mastic & snagging in High Cross, West Sussex
Plot mastic for developers and snagging failed sealant in new homes in High Cross, with a 12-month guarantee on every job. Call for a quick quote.
- Sealant applied over dusty or wet surfaces
- Gaps between new skirting and floors
- Smeared, uneven beads picked up at snagging
Honest limits
A few problems are outside what sealant work can do:
- Cracked trays, tiles or worktops
- Your warranty claim itself, which is between you and the builder
- A tray or bath that is not properly supported, until it’s fixed
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Windows & doors
- Bathrooms & en suites
- Skirting & floors
- Show homes
- Plot handovers
- Kitchens
About our new build mastic in High Cross
Snagging sealant properly means taking the failed bead out completely. New silicone will not bond to old silicone, so the joint is cut out, cleaned, dried and resealed. If you have sealant applied over dusty or wet surfaces and smeared, uneven beads picked up at snagging, we can help, on bathrooms & en suites, kitchens and skirting & floors alike.
Somewhere as small as High Cross, 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 as standard, so you’re covered after we’ve gone.
- Place
- High Cross (BN6)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
FAQs for High Cross
Can you do new build mastic in High Cross?
Yes. We work across London and the South East, and High Cross is part of that. You can call 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Is High Cross within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures.
My new home is still under warranty. Should I contact you?
Start with your builder while their snagging or warranty period runs. If that does not work out, we’re happy to quote and our work is guaranteed for a year.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Do you work for letting agents?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels in High Cross.
Are you insured?
Yes. We are fully insured.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Photograph failed sealant before it’s redone
- Wipe joints with warm soapy water
- Wait for the cure time before using a resealed shower
- Use the extractor fan every time you shower
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
Also near High Cross
Other services in High Cross
What new build mastic looks like in High Cross
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around High Cross, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Hassocks station, it’s worth checking the sealant early, while snags are still fresh.
High Cross is about 4 miles west of Burgess Hill, in West Sussex. High Cross gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 371 places across West Sussex. You can also see our page for Brighton, roughly 9 miles from High Cross.
We work across BN6 for new build mastic and the streets around it. Neighbouring places we cover for new build mastic include Albourne (1 mile south-east), Albourne Green (1 mile south-east), Albourne Street (1 mile south-east), Blackstone (1 mile south-west) and Twineham (2 miles north). Further out, we also cover Crawley (12 miles north), Horsham (10 miles north-west), Worthing (11 miles south-west), Haywards Heath (7 miles north-east), Burgess Hill (4 miles east) and Shoreham-by-Sea (8 miles south).
Around High Cross
For rail, the closest station is Hassocks station, about 3.4 miles east. Other landmarks nearby include The Dene Hospital (2.9 miles north-east) and Clayton Castle (3.9 miles south-east). The countryside around High Cross includes Wolstonbury Hill and Woods Mill.
Leave it or put it right?
The builder is generally the first port of call while the snagging or warranty period runs. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Where a wall is exposed, as many are in small places like High Cross, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
What you pay reflects the work, not a rough estimate. That is why we ask a few questions first and give you a clear price before we start.
Why us?
- 20+ years of sealant experience
- Colour picked to suit the job
- A choice of colours where the product allows
- An ARBOMaster approved applicator
Take a look at our cost guide or customer reviews.
Landlord and commercial work in High Cross
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What the job involves on each surface
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We remove it and reseal with a kitchen-suitable sealant.
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
What happens on the day
We bring everything the job needs with us. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like High Cross, 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.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- 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.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand, and we will come back to you with a quote.