Kent · England
New-build mastic & snagging in Stone, Kent
We cover Stone for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly.
- Beads laid onto grit and dust from the build
- Smeared, uneven beads picked up at snagging
- Worktop and upstand sealant coming away
New build mastic in Stone
A new build should have a neat, sound bead at every joint. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water gets into the floor or walls. We work on bathrooms & en suites, plot handovers and windows & doors, and people most often call us about smeared, uneven beads picked up at snagging and sealant work across a run of new homes.
If you’ve bought a new home in or near Stone, the first year or two is a good time to check the sealant. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or email us.

- Location
- Stone (DA9)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why act early in Stone
A hairline gap at a skirting can wait, but water getting through can’t. If you are unsure which you have, call 0345 464 0079 or drop us an email with photos. In an older home around Stone, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Full insurance on every job
- Colour picked to suit the job
- 180+ five-star Google reviews
- A choice of colours where the product allows
Read how sealant jobs are priced and customer reviews.
How the job changes by surface
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed so the sealant lasts.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. We seal them with a sealant suited to wet areas.
Work for landlords, hotels and businesses
If you manage several properties in or around Stone, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
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.
Quotes for new build mastic in Stone
You will get a clear quote before work begins. It takes into account:
- The number of rooms or windows
- Any mould that needs treating
- The size of the job
- Any working-time requirements on site
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- Any previous sealing or DIY work
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
What happens on the day
Once we are on site, 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. In a smaller place like Stone, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, ring 0345 464 0079 or email us.
Advice
Can I do it myself?
If you are 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 doesn’t work out, we can still put it right.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Joints and finishes in Stone homes
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.
For new homes near Stone Crossing station, it’s worth checking the sealant early, while snags are still fresh. Around Stone, as everywhere, new build mastic is only as good as the preparation behind it.
Stone is about 2 miles east of Dartford, in Kent. We carry out new build mastic for homeowners, landlords and businesses in Stone and the surrounding area. 922 places in Kent are on our list, large and small. There’s also a page for London, about 16 miles away.
We work across DA9 for new build mastic and the streets around it. Local streets include Church Road, Perkins Close and Richardson Close. Being close to the A296, Stone is easy for our applicators to reach. Other places close to Stone include Greenhithe (1 mile north-east), Swanscombe (1 mile east), Bean (2 miles south-east), Darenth (2 miles south) and Temple Hill (2 miles west). Further out, we also cover Sevenoaks (12 miles south), Gravesend (5 miles east), Northfleet (3 miles east), Swanley (5 miles south-west), Kings Hill (13 miles south-east) and Windmill Hill (4 miles east).
Around Stone
Locally, jobs take us to homes and businesses close to Darenth Country Park, The White Hart Public House and Stone Lodge School and the streets around them. For rail, the closest station is Stone Crossing station, roughly 0.5 miles north-west. Nearby you’ll also find Stone Museum of Geology (1.3 miles west) and Darent Valley Hospital (1 mile south-west). Open spaces near Stone include Chafford Gorges Nature Park and Sawyers Lake.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Resist patching a failed seal with a tube from the DIY shop
- Wipe joints with warm soapy water
- Check bath and shower seals every few months as the house settles
- Open a window or run the fan after bathing
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Report failed sealant to the builder while you’re in the snagging period. Once it ends, the repair may be down to you so report it promptly.
Towns and villages near Stone
Also in Stone
Questions from Stone
Do you work for landlords with property near Stone Crossing station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Can you do new build mastic in Stone?
Yes, Stone is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Where do you work from?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
How long does new build mastic 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’ll tell you when we quote.
Does someone need to be in?
That depends on where the joints are. For work indoors, someone needs to let us in.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Is there any odour?
Sometimes, a little. It fades as the sealant cures.
