Kent · England
Sheldwich Lees New Build Mastic
Professional new build mastic in and around Sheldwich Lees, with old sealant always removed completely and a 12-month guarantee.
- Sealant applied over dusty or wet surfaces
- Gaps opening as the house dries out and settles
- Cracked sealant around new window and door frames
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
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 fails, we can still redo it.
New build mastic in Sheldwich Lees, done properly
Snagging sealant properly means taking the failed bead out completely. New silicone will not bond to old silicone, so the joint is cut out, cleaned, dried and resealed. We work on skirting & floors, show homes and plot handovers, and the jobs we see most are new-build shower sealant that has already split and kitchen sealant that has pulled off the wall.
Work in a small place like Sheldwich Lees just needs the journey and access planning, and the work itself is the same as on any site.
All our work is covered by our 12-month guarantee.
- Place
- Sheldwich Lees (ME13)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours for most snagging lists, longer for a run of plots. Somewhere like Sheldwich Lees needs a little journey planning: 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.
- Each joint is checked for movement before work begins.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Let us know about parking restrictions
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details.
Related advice
Towns and villages near Sheldwich Lees
Also in Sheldwich Lees
Why it’s worth doing now in Sheldwich Lees
DIY kits don’t solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Cutting out, cleaning and priming are what make the difference. Around Sheldwich Lees, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all play a part.
Why choose Mr Mastic in Sheldwich Lees
- Homes, businesses and hotels
- Any old sealant cut out fully, not covered over
- Tidy, careful work
- Arbo and Everbuild products
See what affects the cost and what customers say.
Do you need new build mastic in Sheldwich Lees?
Once people move in, baths and trays take weight and bed down. A bath sealed empty drops slightly when filled, straining the joint.
Any of these means the joints need attention:
- Cracks appearing as a new home settles
- Messy sealant that spoils new finishes
- Gaps between new skirting and floors
- Beads laid onto grit and dust from the build
In and around Sheldwich Lees, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- Whether all the old sealant comes out first
- What preparation is included
- Whether VAT is included
- Which sealant they’ll use, and why
New homes and floors in Sheldwich Lees
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.
If you’ve bought a new home near Selling station, the sealant around baths, showers and frames is worth checking in the first year or two.
Sheldwich Lees is about 3 miles south of Faversham, in Kent. Anywhere in ME13, our applicators can take on new build mastic. We cover 922 towns and villages across Kent, from the larger towns to small villages. We also work in Chelmsford, around 37 miles away.
All of ME13 is within our area for new build mastic, from the main roads to the quietest streets. We also cover the places around Sheldwich Lees: Sheldwich (1 mile north-west), Badlesmere (1 mile south), North Street (1 mile north), Throwley (1 mile west) and Throwley Forstal (2 miles south-west). Further out, we also cover Ashford (9 miles south), Canterbury (8 miles east), Sittingbourne (8 miles north-west), Whitstable (8 miles north-east), Faversham (3 miles north) and Herne Bay (13 miles north-east).
Around Sheldwich Lees
For rail, the closest station is Selling station, about 2.4 miles east of the centre. Other landmarks nearby include Tower keep castle at Chilham (3.7 miles south-east).
How the job changes by surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk in a colour to suit.
Plot handovers
Developers can send the plot schedule and specification. We seal bathrooms, kitchens, frames and floors as agreed.
FAQs for Sheldwich Lees
I let a flat near Selling station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Will you come out to Sheldwich Lees?
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.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we are fully insured.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
Do you take on second-fix sealing for builders?
Yes. We seal plots to the developer’s programme. Tell us the plots and the joints involved and we will quote.
Will you just run a new bead over the existing one?
No. Sealing over old sealant looks fine for a few weeks, then lifts. All the old sealant comes out before any work starts.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
What does new build mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote.
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Ventilate bathrooms well, especially in the first year
- Do not wait for the house to settle if water is getting through
- Record problems with dated photos
- Watch for new gaps as the house dries out
Keep pictures of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.
Report failed sealant to the builder while you’re in the snagging period. Once it ends, the repair may be down to you, so raise it early.
What affects the cost of new build mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- How many rooms, windows or areas are involved
- The number and length of the joints
- The product the joint needs
- Whether old sealant or filler has to be cut out
What it costs depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts.
Helping us quote
To make quoting easier, let us know:
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- Whether it’s a home or a business
If you are in Sheldwich Lees and need new build mastic, call 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.