West Sussex · England
New-build mastic & snagging in Three Bridges, West Sussex
Professional new build mastic in and around Three Bridges, with old sealant always removed completely and a 12-month guarantee.
- Cracked sealant around new window and door frames
- Untidy sealant flagged on a snagging list
- Sealant work across a run of new homes
About our new build mastic in Three Bridges
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. We are often asked to deal with leaking shower tray seals in a new home and cracked caulk along new skirting, on kitchens, show homes and windows & doors.
Homes around Three Bridges range from older cottages to newer houses, and their floors range just as widely, each moving in its own way. Skirting and threshold joints need a sealant that suits the floor.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Location
- Three Bridges (RH10)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Three Bridges: your questions answered
Do you work for landlords with property near Three Bridges station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Is Three Bridges in your area for new build mastic?
Yes, Three Bridges is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
Do you use white or clear sealant?
White and clear are the most common, but sealant comes in other colours too. We match the colour to the finish.
Where are you based?
We work from Crawley. We cover Three Bridges and the rest of West Sussex, along with the rest of our area.
My new home is still under warranty. Should I contact you?
Your builder, if you are still in their snagging or warranty period. If that does not work out, we’re happy to quote with our one-year guarantee.
When is the best time to reseal in a new build?
It depends on whether water is getting through. A leaking shower or bath seal should be redone right away, but cosmetic gaps can wait for movement to slow.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
How long does new build mastic take?
Typically it takes a few hours for most snagging lists, longer for a run of plots. Bigger jobs take longer, and we’ll say how long yours will take.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- A tray or bath that isn’t properly supported, until it’s fixed
- Structural cracks in walls or ceilings
- Damaged fittings that need replacing
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.
What we seal
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
- Plot handovers
- Skirting & floors
Different surfaces, different methods
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We remove cracked sealant and apply a flexible one that suits the frame.
Nearby places to Three Bridges
Also in Three Bridges
What new build mastic looks like in Three Bridges
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Crawley, which Three Bridges is part of, is one of England’s post-war new towns. Crawley has kept growing, with newer neighbourhoods added to the original town, so brand-new homes and homes from the post-war decades sit within a short drive of each other. Newer homes need snagging; older ones need their joints renewing.
For new homes near Three Bridges station, it’s worth checking the sealant early, while snags are still fresh.
Three Bridges is about 1 mile east of Crawley, in West Sussex. We provide new build mastic to householders, landlords and businesses in Three Bridges and nearby, as part of our work across West Sussex. Three Bridges is one of 371 towns and villages in West Sussex where we work for new build mastic.
Work in RH10 is quoted and booked the same way as anywhere else. Whether your property is on Ash Road, Mill Road and North Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out new build mastic in Pound Hill (1 mile north-east), Worth (1 mile south-east), Maidenbower (1 mile south-east), Tilgate (1 mile south-west) and Crawley (1 mile west). Larger places within reach include Horsham (8 miles south-west), Haywards Heath (9 miles south), Burgess Hill (11 miles south), East Grinstead (7 miles east), Billingshurst (14 miles south-west) and Bewbush (3 miles west).
Around Three Bridges
Typical jobs here are in homes near Hazelwick School, Central Sussex College and Grattons Park and the streets around them. There’s a railway station in Three Bridges itself: Three Bridges station. Nearby you will also find Crawley Hospital (1.6 miles west) and Crawley Museum (1.2 miles west). Not far away are Tilgate Lake.
What happens on the day
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. It normally takes anything from a few hours to several days, depending on the number of plots. A visit to Three Bridges is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- 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.
- Each area is checked and left with its cure time.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Read more
Looking after it afterwards
How long the joints last depends on use and care. Here’s what we suggest:
- Record problems with dated pictures
- Put sealant faults on your snagging list early
- Follow the cure time we give you
- Get a leaking seal dealt with straight away
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers so moisture doesn’t sit on the sealant.
Report failed sealant to the builder while you are in the snagging period. After that, putting it right may fall to you.
What we are called out for in Three Bridges
Later trades and the final clean can damage fresh sealant. If it’s disturbed before curing, the joint can be left weak.
Common reasons people contact us are:
- New-build shower sealant that has already split
- Cracked caulk along new skirting
- Plot mastic for developers ahead of handover
- Messy sealant that spoils new finishes
In and around Three Bridges, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- How long the guarantee is
- Are they insured?
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
Why it’s worth doing now in Three Bridges
If you’re still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Homes in smaller places like Three Bridges can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why book with us
- A 12-month guarantee on all work
- Tidy, careful work
- Full insurance on every job
- White, clear, grey or another colour, product permitting
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.