West Sussex · England
New Build Mastic in Lyminster
Plot mastic for developers and snagging failed sealant in new homes in Lyminster, with a 12-month guarantee on every job. Call for a quick quote.
- Cracked caulk along new skirting
- Frame joints opening as the plaster dries
- Gaps behind new kitchen upstands
New build mastic for homes and businesses in Lyminster
Across Lyminster, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. Common call-outs are for cracked sealant around new window and door frames and second-fix sealing on new plots, on skirting & floors, bathrooms & en suites and kitchens.
For a small place like Lyminster, the journey and access are planned in advance, and once on site, the job is the same as anywhere.
You get a one-year guarantee, the same in Lyminster as everywhere else we work.
- Location
- Lyminster (BN17)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Lyminster
The builder is usually 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. Around Lyminster, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- Anti-fungal sanitary silicone in wet areas
- An ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
- Neat joints and a tidy finish
Take a look at how sealant jobs are priced or customer reviews.
Honest limits
A few problems are outside what sealant work can do:
- Leaks from pipes, valves or wastes, which need a plumber
- Movement caused by a poorly fitted tray or bath
- Damaged fittings that need replacing
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before booking.
Surfaces we seal
- Show homes
- Windows & doors
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Kitchens
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Ventilate bathrooms well, especially in the first year
- Keep pictures and emails about snagging items
- Avoid scourers and strong chemicals on sealant
- Watch for new gaps as the house dries out
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries, and they’re simple to reseal once movement has slowed.
Don’t let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you so report it promptly.
The process
Before we leave, we go over the finished joints with you. The visit itself generally takes a few hours for most snagging lists, longer for a run of plots, depending on how much there is to do. Somewhere as small as Lyminster, 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.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Before we arrive
- Mention any tricky access
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
How to get a quote
To get a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
Read more
New homes and floors in Lyminster
Lyminster is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Lyminster, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Arundel station, it’s worth checking the sealant early, while snags are still fresh.
Lyminster is about 1 mile north-west of Littlehampton, in West Sussex. For new build mastic in and around Lyminster, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover West Sussex. Lyminster is one of 371 towns and villages in West Sussex where we work. You can also see our page for Brighton, about 18 miles away.
Here we cover the BN17 postcode area for new build mastic. Local streets include Arundel Drive, Old Mead Road and Lyminster Road, and we cover them all. We also cover the places around Lyminster: Wick (1 mile south), Toddington (1 mile south-east), Crossbush (1 mile north-east), Tortington (1 mile west) and Littlehampton (1 mile south-east). Within a short drive, we also cover Worthing (6 miles east), Bognor Regis (7 miles south-west), Chichester (10 miles west), Selsey (12 miles south-west), Shoreham-by-Sea (12 miles east) and Lancing (10 miles east).
Near you in Lyminster
Locally, jobs take us to homes and businesses close to The 6 Bells Public House, The Littlehampton Academy and Littlehampton College and the streets around them. The closest station to Lyminster is Arundel station, roughly 1.3 miles north of the centre. A little further out are Arundel and District Hospital (1.9 miles north-west) and Rustington Museum (2.3 miles south-east). Open spaces near Lyminster include Highdown Hill and WWT Arundel.
Your questions about new build mastic in Lyminster
Can you do new build mastic in Lyminster?
Yes, Lyminster is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we will send you a clear quote.
Will you come out to Lyminster?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Lyminster.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
What should I tell you?
Tell us what needs doing and where. If we need more, we will ask.
Who should fix failed sealant in a new build?
Start with the builder if you’re in the snagging or warranty period. If it is not resolved, we can reseal it properly.
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Different surfaces, different methods
Show homes
Show homes need sealant that looks right from day one. Every bead is neat and coloured to suit the room.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. A flexible sealant closes it without cracking like caulk.
Also near Lyminster
Also in Lyminster
How we quote for new build mastic
For a quick quote, just ask. What matters most is:
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- How easy the joints are to reach
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
What we need to know
To make quoting easier, let us know:
- Roughly how big the job is
- Any previous sealing or DIY work
- The address or postcode of the job
- Pictures of the joints, sent by email
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.