East Sussex · England
New-build mastic & snagging in Three Leg Cross, East Sussex
New build mastic for Three Leg Cross and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Gaps between new skirting and floors
- Gaps behind new kitchen upstands
- Leaking shower tray seals in a new home
Common questions in Three Leg Cross
Will you come out to Three Leg Cross?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near Stonegate station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Do you work for hotels and businesses?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
What does new build mastic cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before work begins.
Where are you based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Are you insured?
Yes, we’re fully insured.
New build mastic in Three Leg Cross, done properly
Snagging sealant properly means taking the failed bead out completely. Fresh silicone cannot bond to the old layer, so it all comes out before we clean, dry and reseal. We work on plot handovers, kitchens and skirting & floors, and common reasons people get in touch are smeared, uneven beads picked up at snagging and plot mastic for developers ahead of handover.
Work in a small place like Three Leg Cross just needs the journey and access planning, and the work itself is the same as on any site.
All our work comes with a 12-month guarantee.
- Place
- Three Leg Cross (TN5)
- Wider area
- East Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When something else is needed
Before you book, it’s worth knowing the limits too:
- Broken tiles or a split tray
- Baths and trays that move too much for sealant to cope with
- Disputes or warranty claims with your builder
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Surfaces we seal
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Plot handovers
- Show homes
What we do, step by step
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for most snagging lists, longer for a run of plots. In a small place like Three Leg Cross, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked for movement before work begins.
- Old sealant is cut out and the joints cleaned.
- 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.
Getting ready for the visit
- Mention if the joints have been sealed before
- Mention any parking rules near the property
- On commercial sites, let us know about site rules
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Advice
For landlords and businesses
Letting agents and landlords in Three Leg Cross can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
For anyone letting property in or around Three Leg Cross, several properties can go on one quote. Send us the addresses and the work at each.
What the job involves on each surface
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. A proper reseal keeps water in the tray.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
What affects the quote in Three Leg Cross
We do not publish a price list. The quote depends on:
- Mould in or behind the old joints
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- Which sealant suits the joint
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Whether it has been sealed before
- A few photos by email, if you can
- The problem you’ve noticed
- Where the property is
It all starts with a short chat. Describe the problem, the location and the size of the job. Whenever you’re ready, ring 0345 464 0079 or email us.
Leave it or put it right?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. Where a wall is exposed, as many are in small places like Three Leg Cross, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email.
Why us?
- Approved under the ARBOMaster scheme
- Fully insured
- White, clear, grey or another colour, product permitting
- Tidy, careful work
What new build mastic looks like in Three Leg Cross
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Stonegate station, it’s worth checking the sealant early, while snags are still fresh. In and around Three Leg Cross, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Three Leg Cross is about 8 miles south-east of Royal Tunbridge Wells, in East Sussex. Every kind of property in Three Leg Cross can book us for new build mastic. Every job comes with our one-year guarantee. Three Leg Cross is one of 289 places in East Sussex we cover for new build mastic. You can also see our page for Crawley, roughly 26 miles from Three Leg Cross.
All of TN5 is covered for new build mastic, from the main roads to the quietest streets. We also cover the places around Three Leg Cross: Ticehurst (1 mile south-east), Stonecrouch (1 mile north-east), Flimwell (2 miles east), Kilndown (2 miles north) and Bedgebury Cross (3 miles north-east). Within a short drive, we also cover Hastings (15 miles south-east), Bexhill-on-Sea (15 miles south), Hailsham (15 miles south-west), Crowborough (10 miles west), St Leonards (15 miles south-east) and Uckfield (14 miles south-west).
What’s near Three Leg Cross
In Three Leg Cross, that means homes and buildings near The Bull Inn Public House and the streets around them. Three Leg Cross’s nearest station is Stonegate station, about 3 miles south-west. A little further out are Old Scotney Castle (2.5 miles north) and Finchcocks Musical Museum (3.4 miles north). Green spaces nearby include Bewl Water.
How to look after the new joints
Aftercare is simple, and it makes a real difference:
- Ventilate bathrooms well, especially in the first year
- Resist patching a failed seal with a tube from the DIY shop
- Keep water off fresh sealant until it has cured
- Avoid scourers and strong chemicals on sealant
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry and can be resealed later.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in saves a harder job later.