West Sussex · England
New-build mastic & snagging in Charlton, West Sussex
Professional new build mastic in and around Charlton, with every bit of old sealant taken out first.
- Gaps between new skirting and floors
- Worktop and upstand sealant coming away
- Sealant that never bonded to the surface
Surface by surface
Show homes
We seal show-home bathrooms, kitchens and frames. Tell us when the home is open so we can plan around it.
Kitchens
Beside the sink, the joint takes water every day. A kitchen sealant goes in there suited to the job.
How we handle new build mastic in Charlton
Across Charlton, 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: cut out, clean, prime where needed and reseal neatly. Common call-outs are for beads laid onto grit and dust from the build and gaps behind new kitchen upstands, across plot handovers, bathrooms & en suites and show homes.
Somewhere as small as Charlton, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.
- Place
- Charlton (PO18)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the number of plots. Somewhere as small as Charlton, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- 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
- Clear items away from the joints we’re working on
- Mention any tricky access
- Try not to wet indoor joints just before the visit
Ask for a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Quotes for new build mastic in Charlton
Jobs vary more than people expect. The main factors:
- Whether there’s mould to deal with
- Access and height
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Where the job is, and your postcode
- Whether it has been sealed before
- How we’d reach the joints
- A few photos by email, if you can
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear quote before any work starts.
FAQs for Charlton
Is there a guarantee on new build mastic in Charlton?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Will you come out to Charlton?
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.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with pictures if you can, and we will quote. We’ll tell you if anything on it is not a sealant job.
When is the sealant fully cured?
It depends on the product. We tell you how long to leave it before we go.
Towns and villages near Charlton
Other services in Charlton
Aftercare tips
Aftercare is simple:
- Watch for new gaps as the house dries out
- Do not seal over failed sealant yourself
- Avoid scourers and strong chemicals on sealant
- Follow the cure time we give you
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers to help keep mould away.
Do not let the snagging period run out with sealant problems unreported. After that, putting it right may fall to you.
Should I try it myself first?
If you do try it yourself, take your time over the 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.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
What we’re called out for in Charlton
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 include:
- Cracked caulk along new skirting
- Cracked sealant around new window and door frames
- Plot mastic for developers ahead of handover
- Smeared, uneven beads picked up at snagging
For jobs in and around Charlton, choosing the right material for each joint is as important as a tidy finish.
Questions to ask before booking
- How the joint is cleaned and prepared
- How long the guarantee is
- Who does the work, and how experienced they are
- Which colour the sealant will be
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
What new build mastic looks like in Charlton
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.
In and around Charlton, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Charlton is about 5 miles north of Chichester, in West Sussex. If you need new build mastic in Charlton, please phone 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover West Sussex. Across West Sussex, we cover 371 places, Charlton among them. For nearby work, see our Portsmouth page.
Work in PO18 works the same way as everywhere else we cover. If you need new build mastic at a property on Charlton Road and Knight's Hill or anywhere close by, our applicators can take on the job. Nearby, we also carry out new build mastic in Singleton (1 mile west), East Dean (1 mile east), West Dean (2 miles west), Cocking (3 miles north) and Heyshott (3 miles north). Larger places within reach include Bognor Regis (9 miles south), Chichester (5 miles south), Selsey (12 miles south), Littlehampton (11 miles south-east), Emsworth (10 miles south-west) and Rustington (12 miles south-east).
Local landmarks in Charlton
Other landmarks nearby include Chichester Centre (4.6 miles south) and Weald and Downland Gridshell (0.8 miles west). The countryside around Charlton includes Levin Down and Kingley Vale National Nature Reserve.