Kent · England
New Build Mastic in Selling
We cover Selling for plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly.
- Cracked sealant around new window and door frames
- Sealant applied over dusty or wet surfaces
- Kitchen sealant that has pulled off the wall
Signs you need new build mastic in Selling
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
Signs it’s time to call us include:
- Frame joints opening as the plaster dries
- Cracked caulk along new skirting
- Cracks appearing as a new home settles
- Sealant applied over dusty or wet surfaces
In and around Selling, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Before you book anyone
- Whether they seal over old material or remove it
- What happens if the job turns out different
- Which colour the sealant will be
- The length of the guarantee
New build mastic in Selling, done properly
Across Selling, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method does not change: remove, clean, prime where needed, then a neat new bead. If you have leaking shower tray seals in a new home and cracks appearing as a new home settles, we can help, whatever the surface.
Around Selling, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
Big or small, you get the same 12-month guarantee in Selling and across Kent.
- Location
- Selling (ME13)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Landlord and commercial work in Selling
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
What happens if it’s left?
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. Where a wall is exposed, as many are in small places like Selling, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Selling
- Tidy, careful work
- Over 20 years’ experience
- Quality sealants from Arbo and Everbuild
- Colour picked to suit the job
Take a look at what affects the cost or what customers say.
How we quote for new build mastic
For a quick quote, just ask. What matters most is:
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- The size of the job
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What to tell us for a quote
To help us quote quickly, please include:
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- Where the property is
Want a quote for new build mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before we start.
FAQs for Selling
Do you cover Selling for new build mastic?
Yes. Our work covers London and the South East, and Selling is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Will you come out to Selling?
Yes, Selling is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work through snagging lists?
Yes. Photos of each sealant item help us quote. If something isn’t sealant, we will say so.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply ring 0345 464 0079 or drop us an email.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. Cosmetic gaps can wait until the first year or two of movement has passed.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
How long does new build mastic take?
Most jobs take anything from a few hours to several days, depending on the number of plots, including the preparation. Your quote will say how long we expect yours to take.
What we do, step by step
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours in a single home, depending on the size of the job. Somewhere as small as Selling, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
- Clear the area around the work
How to get 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, and email pictures if that is easy.
Read more
Towns and villages near Selling
More services for Selling
What new build mastic looks like in Selling
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Selling station, it’s worth checking the sealant early, while snags are still fresh.
Selling is about 3 miles south-east of Faversham, in Kent. Selling gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Selling is one of 922 places in Kent we cover. There’s also a page for Chelmsford, roughly 37 miles from Selling.
We cover every part of ME13 for new build mastic. Local streets include Selling Road, Selling Court and Vicarage Lane. We also cover Perrywood (1 mile south), Hogben's Hill (1 mile west), Gushmere (1 mile north), Neames Forstal (1 mile east) and Crouch (1 mile north-east). Within a short drive, we also cover Ashford (9 miles south), Canterbury (7 miles east), Sittingbourne (10 miles north-west), Whitstable (7 miles north-east), Faversham (3 miles north-west) and Herne Bay (11 miles north-east).
Local landmarks in Selling
We work in homes and buildings around The White Lion Public House and the streets around them. For rail, the closest station is Selling station, roughly 0.8 miles north-east. Other landmarks nearby include Tower keep castle at Chilham (2.5 miles south-east).
Can I do it myself?
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.
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.
Surface by surface
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. A proper reseal keeps water in the tray.
Skirting and floors
As timber and screed dry, skirting and floors shift. We use a flexible product rather than caulk painted or coloured to suit.