Kent · England
New Build Mastic in Culmers
Plot mastic for developers and snagging failed sealant in new homes for Culmers, backed by a 12-month guarantee. Ask us for a quote.
- Beads laid onto grit and dust from the build
- Gaps behind new kitchen upstands
- New-build shower sealant that has already split
New build mastic for homes and businesses in Culmers
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you are still within the builder’s snagging or warranty period, tell them first, and if it is not put right, get in touch with us. We work on show homes, bathrooms & en suites and plot handovers, and the jobs we see most are sealant work across a run of new homes and sealant applied over dusty or wet surfaces.
Work in a small place like Culmers just needs the journey and access planning, and the work itself is the same as on any site.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.

- Where
- Culmers (ME13)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Culmers
Do you cover smaller places like Culmers?
Yes, Culmers is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do new build mastic in Culmers?
Yes. Our work covers London and the South East, and Culmers is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Who should fix failed sealant in a new build?
If you are still within the builder’s snagging or warranty period, report it to them first. If they’re slow or the fix does not last, we can help.
Are you an approved applicator?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
How much does new build mastic cost in Culmers?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Are you fully insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
What happens on the day
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It generally takes anything from a few hours to several days, depending on the number of plots. In a small place like Culmers, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked for movement before any work starts.
- 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.
How to prepare
- For business premises, tell us about site rules or sign-in
- Tell us about any water getting in
- Tell us if parking is tricky
Get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
Related advice
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 isn’t dealt with, we can reseal it properly. Older cottages and farmhouses around Culmers can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A few things move the cost up or down: 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.
Why us?
- Every job guaranteed for a year
- You choose the colour before work begins
- 4.9 on Google from 180+ five-star reviews
- Trusted Arbo and Everbuild sealants
Read our cost guide or customer reviews.
New homes and floors in Culmers
Culmers is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. 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.
In and around Culmers, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Culmers is about 2 miles east of Faversham, in Kent. Our applicators cover new build mastic for householders, landlords and businesses in Culmers and nearby. Culmers is one of 922 places in Kent where we work for new build mastic. We also work in Chelmsford, about 35 miles from Culmers.
All of ME13 is within our area for new build mastic. Other places close to Culmers include Graveney (1 mile north-east), Goodnestone (1 mile south-west), Broom Street (1 mile north-west), Slutshole (1 mile south-east) and Hernhill (1 mile south-east). Larger places within reach include Ashford (13 miles south), Canterbury (7 miles south-east), Sittingbourne (9 miles west), Whitstable (4 miles north-east), Herne Bay (9 miles east) and Minster (9 miles north-west).
Landmarks near Culmers
Typical jobs here are in homes near Queen Elizabeth's Grammar School and Mount Ephraim Gardens, among other places. Culmers’s nearest station is Faversham station, about 2.2 miles west. Well-known places in the area include Whitstable and Tankerton Hospital (5.5 miles north-east). The countryside around Culmers includes Blean Woods RSPB Reserve.
Also in Culmers
Signs you need new build mastic in Culmers
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart and the sealant has to cope with the movement.
The problems people generally mention when they call are:
- Gaps opening as the house dries out and settles
- Worktop and upstand sealant coming away
- Internal frame sealant that has split
- Skirting joints opening in the first winter
For new homes near Faversham station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- When the joint can take water or movement
- How the colour is chosen
- How long the guarantee is
- How the joint is cleaned and prepared
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you are 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 does not work out, we can still put it right.
How the job changes by surface
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
Kitchens
Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. We reseal them with a flexible sealant.
How we quote for new build mastic
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- The old material and how stubborn it is
- How easy the joints are to reach
- Any mould that needs treating
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- Whether it has been sealed before
- Whether it’s a home or a business
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Landlords and agents in Culmers can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
