Medway · England
New Build Mastic in Capstone
We cover Capstone for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps between new skirting and floors
- Untidy sealant flagged on a snagging list
- Shower seals failing in the first year or two
Capstone: your questions answered
Can you help a landlord with a rental near Gillingham (Kent) station?
Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Is Capstone in your area for new build mastic?
Yes, Capstone is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Is there any odour?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Is there a guarantee?
Yes. All our work carries our one-year guarantee.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
Can you match the sealant colour to my new kitchen or bathroom?
That depends on what the joint meets: white or clear for most sanitary joints, colours for worktops, floors and frames. We’ll agree it with you first.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
New build mastic for homes and businesses in Capstone
We never seal over a failed new-build bead. Fresh silicone can’t bond to the old layer, so it all comes out before we clean, dry and reseal. We work on plot handovers, show homes and skirting & floors, and people most often call us about sealant that never bonded to the surface and gaps behind new kitchen upstands.
Work in a small place like Capstone just needs the journey and access planning, and once on site, the job is the same as anywhere.
All of our work is guaranteed for twelve months, in Capstone and everywhere else we cover.
- Location
- Capstone (ME7)
- Wider area
- Medway
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Keeping the joints in good condition
After the cure time, these simple habits help:
- Watch for new gaps as the house dries out
- Wipe joints with warm soapy water
- Record problems with dated pictures
- Wait for the cure time before using a resealed shower
Keep photos of the joints and any snagging correspondence with your builder. It helps if anything else comes up during the warranty period.
Don’t let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full 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.
What happens on the day
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Capstone, the journey is planned in advance: 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 go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- Each area is checked and left with its cure time.
How to prepare
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
- On commercial sites, let us know about site rules
Ask for a quote
If you’re in Capstone and need new build mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Related advice
Landlords, agents and businesses in Capstone
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Also in Capstone
Joints and finishes in Capstone homes
Capstone is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. 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 Capstone, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. For new homes near Gillingham (Kent) station, it’s worth checking the sealant early, while snags are still fresh.
Capstone is about 1 mile south-west of Gillingham, in Medway. From the centre of Capstone to the outskirts, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Across Medway, we cover 68 places, Capstone among them. There’s also a page for Chelmsford, roughly 26 miles from Capstone.
Work in ME7 is quoted and booked the same way as anywhere else. Neighbouring places we cover for new build mastic include Darland (1 mile north), Hale (1 mile north-west), Hempstead (1 mile south-east), Gillingham (1 mile north-east) and Chatham (1 mile west). We also work in nearby towns such as Rochester (4 miles north-west), Strood (4 miles north-west), Hoo St Werburgh (5 miles north), Rochester Riverside (3 miles north-west), Peters Village (4 miles west) and Brompton (3 miles north-west).
Local landmarks in Capstone
Around Capstone, our work takes us to homes and buildings near Chatham Grammar School for Girls, The Star pub and The Robert Napier School. The closest station to Capstone is Gillingham (Kent) station, about 2 miles north. Other landmarks nearby include Medway Maritime Hospital (1.7 miles north-west) and Pentagon Shopping Centre (2.3 miles north-west). Not far away are Burham Down and Blue Bell Hill.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Cracking that points to a structural problem
- A tray or bath that is not properly supported, until it’s fixed
- Leaks from pipes, valves or wastes, which need a plumber
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Bathrooms & en suites
- Plot handovers
- Kitchens
- Windows & doors
- Show homes
- Skirting & floors
How we quote for new build mastic
Call for a quick quote. The main things that affect it are:
- The amount of work
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- How easy the joints are to reach
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
Helping us quote
When you contact us, these details help:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear price.
Why deal with it now?
The builder is generally the first port of call while the snagging or warranty period runs. If it keeps failing or is not dealt with, we can reseal it properly. Around Capstone, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on the amount of work, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
Why Capstone customers choose us
- Arbo and Everbuild products
- Colour picked to suit the job
- 4.9 on Google from 180+ five-star reviews
- A choice of colours where the product allows
Take a look at our cost guide or customer reviews.