West Sussex · England
New-build mastic & snagging in Coates, West Sussex
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Coates. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracks appearing as a new home settles
- Plot mastic for developers ahead of handover
- Smeared, uneven beads picked up at snagging
When it isn’t the sealant
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Leaking fittings rather than failed sealant
- Your warranty claim itself, which is between you and the builder
- Structural cracks in walls or ceilings
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Joints and surfaces we work on
- Plot handovers
- Kitchens
- Show homes
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
New build mastic in Coates
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first and if that stalls, we can do it. We work on bathrooms & en suites, show homes and kitchens, and the jobs we see most are sealant work across a run of new homes and gaps behind new kitchen upstands.
For a small place like Coates, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
You get a 12-month guarantee, the same in Coates as everywhere else we work.
- Location
- Coates (RH20)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026

Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Get a leaking seal dealt with right away
- Open a window or run the fan after bathing
- Raise failed sealant with the developer while you’re covered
- Wipe joints with warm soapy water
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and the new finishes intact.
Different surfaces, different methods
Show homes
We seal show-home bathrooms, kitchens and frames to a tidy standard. Tell us when the home is open so we can plan around it.
Windows and doors
A draught at a new window can be a missed or failed joint. We check and reseal the frame edges.
Questions from Coates
Is Coates within the area you cover?
Yes, Coates is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Pulborough station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Are you fully insured?
Yes. We’re fully insured.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but other colours are available. We match the colour to the finish and agree it with you.
Can you do several jobs on one visit?
Yes. Just list everything you need and you’ll get one quote.
Do you work through snagging lists?
Yes. Send it with photos and we will quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
Is it worth resealing while the house is still settling?
For failed seals that let water through, the best time is now. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
What we’re called out for in Coates
Baths and trays settle under load once the home is lived in. A bath sealed empty drops slightly when filled, straining the joint.
Most people get in touch after spotting one of these:
- Gaps between new skirting and floors
- Sealant applied over dusty or wet surfaces
- Joints pulling apart as timber shrinks
- Worktop and upstand sealant coming away
For new homes near Pulborough station, it’s worth checking the sealant early, while snags are still fresh.
What to look for in a quote
- Whether all the old sealant comes out first
- What guarantee comes with the work
- How much experience the applicator has
- Are they insured?
New build mastic around Coates
London and the South East are among 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 Coates, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Coates is about 10 miles north of Littlehampton, in West Sussex. Our applicators cover new build mastic for homes and businesses in Coates, as part of our work across West Sussex. We cover 371 towns and villages across West Sussex, large and small. We also work in Crawley, around 20 miles away.
Every address in RH20 is covered for new build mastic, from the main roads to the quietest streets. We also cover Lower Horncroft (1 mile east), Fittleworth (1 mile north-east), Bedham (1 mile north-east), Watersfield (2 miles south-east) and Coldwaltham (2 miles south-east). Larger places within reach include Horsham (14 miles north-east), Worthing (12 miles south-east), Bognor Regis (12 miles south-west), Chichester (12 miles south-west), Littlehampton (10 miles south) and Lancing (14 miles south-east).
Around Coates
Around Coates, our work takes us to homes and buildings near The Swan Hotel, among other places. Coates’s nearest station is Pulborough station, about 2.7 miles east. Well-known places in the area include Coates Castle (0.5 miles south-west) and Coultershaw Heritage Site (2 miles north-west). The countryside around Coates includes Bignor Hill and Amberley Wild Brooks.
What happens on the day
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes anything from a few hours to several days, depending on the number of plots. Somewhere like Coates needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Before we arrive
- Keep pets and children clear of the area while we work
- Mention any sign-in or site rules at work premises
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Read more
How we quote for new build mastic
The quote reflects the job in front of us. We look at:
- Any mould that needs treating
- The type of sealant required
- The number of rooms or windows
- When we can work, for business premises
Leaving a failed joint normally makes the job bigger, not smaller. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If it’s domestic, commercial or a hotel
- A few photos by email, if you can
- Any previous sealing or DIY work
- What’s wrong with the joints now
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.
