West Sussex · England
Chidham New Build Mastic
Problem with your new-build sealant joints in Chidham? We remove the old material, prepare the joints and seal them properly.
- Messy sealant that spoils new finishes
- Internal frame sealant that has split
- Gaps opening as the house dries out and settles
What affects the cost of new build mastic
You’ll get a clear quote before any work starts. It takes into account:
- Mould in or behind the old joints
- The number of rooms or windows
- Whether the work is at height
- Whether old sealant or filler has to be cut out
What you pay reflects the work, not guesswork. That is why we ask a few questions first and send you a clear quote before any work starts.
Helping us quote
You do not need to know the technical terms. Just tell us:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- Whether it has been sealed before
- Where the property is
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
New build mastic in Chidham, done properly
We never seal over a failed new-build bead. Fresh silicone can’t bond to the old layer, so the joint is cut out, cleaned, dried and resealed. We work on bathrooms & en suites, show homes and kitchens, and the jobs we see most are cracked sealant around new window and door frames and leaking shower tray seals in a new home.
Work in a small place like Chidham just needs the journey and access planning, and the work itself is the same as on any site.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Chidham (PO18)
- Region
- West Sussex
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What we can’t put right
Before you book, it’s worth knowing the limits too:
- Cracked trays, tiles or worktops
- Movement caused by a poorly fitted tray or bath
- Deciding who is responsible under a builder’s warranty
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in Chidham
- Bathrooms & en suites
- Plot handovers
- Windows & doors
- Kitchens
- Show homes
- Skirting & floors
Nearby places to Chidham
Other services in Chidham
The process
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours in a single home. Somewhere like Chidham needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- The old bead comes out in full, with no layer left behind.
- Surfaces are cleaned of building dust and primed where needed.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
How to prepare
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
- Move anything stored near the joints
Ask for a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Advice
Signs you need new build mastic in Chidham
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak, and the problem shows up after you move in.
Common reasons people contact us include:
- Cracked caulk along new skirting
- Leaking shower tray seals in a new home
- Smeared, uneven beads picked up at snagging
- Worktop and upstand sealant coming away
For new homes near Nutbourne station, it’s worth checking the sealant early, while snags are still fresh.
What to look for in a quote
- Are they insured?
- How long the guarantee is
- How hidden problems are handled
- Which sealant they’ll use, and why
Joints and finishes in Chidham homes
Chidham is within about 1 mile of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Chidham, as everywhere, new build mastic is only as good as the preparation behind it.
Chidham is about 4 miles west of Chichester, in West Sussex. Every kind of property in Chidham can book us for new build mastic. Every job comes with our 12-month guarantee. Chidham is one of 371 towns and villages in West Sussex we cover for new build mastic. There’s also a page for Portsmouth, about 9 miles away.
All of PO18 is within our area for new build mastic. We cover properties on Chidham Lane, Harbour Way and Cot Lane and the roads around them. If you’re just outside Chidham, we cover Nutbourne (1 mile north-west), Bosham (1 mile east), Broadbridge (1 mile east), Hambrook (1 mile north) and Bosham Hoe (2 miles south-east). Within a short drive, we also cover Bognor Regis (9 miles east), Chichester (4 miles east), Selsey (8 miles south-east), Littlehampton (15 miles east), Emsworth (3 miles north-west) and Portfield (5 miles east).
Local landmarks in Chidham
Around Chidham, our work takes us to homes and buildings near Bourne Community College. The nearest railway station is Nutbourne station, about 1 mile north-west. A little further out are Warblington Castle (4.1 miles west) and St Richard's Hospital (4.6 miles east). Green spaces nearby include Nutborne Marshes and Stoke Down.
Chidham: your questions answered
Can you do new build mastic in Chidham?
Yes. Our work covers London and the South East, and Chidham is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we’ll send you a clear quote.
Do you work for landlords with property near Nutbourne station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Where is Mr Mastic based?
We work from Crawley. We cover Chidham and the rest of West Sussex.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early as timber and plaster dry out. Poor preparation at handover adds to it.
How long does the job take?
That depends on the amount of work, but as a guide it takes anything from a few hours to several days, depending on the number of plots. We will give you a better idea when we quote.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Why act early in Chidham
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Resealing promptly protects the new finishes around it. Older cottages and farmhouses around Chidham can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or email us for an honest opinion and a quote.
Why Chidham customers choose us
- Homes, businesses and hotels
- ARBOMaster approved applicator
- Full insurance on every job
- 180+ five-star Google reviews