Kent · England
Window & door mastic in Selling, Kent
Mastic around window and door frames, sills and patio doors for homes and businesses in Selling and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Hard, cracked sealant around windows
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
How we handle window mastic in Selling
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. Typical jobs include rushed sealant from a window installation and cracked or shrunken mastic around the frame, on aluminium frames, composite doors and patio & French doors.
Homes in small places like Selling often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
We stand behind the work with a one-year guarantee.
- Where
- Selling (ME13)
- Region
- Kent
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Around Selling, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why choose Mr Mastic in Selling
- Old sealant always removed completely
- ARBOMaster approved applicator
- A 12-month guarantee on all work
- Tidy, careful work
Read our cost guide and what customers say.
When something else is needed
In fairness, there are a few things sealant won’t fix:
- A sash or casement that will not close properly
- Draughts through the window seals rather than the frame
- Damp problems in the wall away from the window
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- uPVC windows
Common problems we fix in Selling
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. When that sealant fails, water gets into the wall or under the frame.
People usually contact us when they notice something like this:
- Rain getting in at the frame or under the sill
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
- Draughty joints inside around the window
If you look after a building such as Selling Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- What product goes in the joint
- What preparation is included
- Whether VAT is included
- How hidden problems are handled
What else we do in Selling
What affects the quote in Selling
The price is agreed before any work begins. It takes into account:
- The number and length of the joints
- Mould in or behind the old joints
- How many areas need sealing
- The product the joint needs
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Asking for a quote
Before you ask for a quote, have a think about:
- Roughly how big the job is
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
Want a quote for window mastic? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Selling questions
Will you come out to Selling?
Yes. Selling is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Selling for window mastic?
Yes, Selling is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job.
Is the work guaranteed?
Yes. Every job comes with our 12-month guarantee, and we are fully insured.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Can I add another job to the visit?
Yes. Just list everything you need.
Where do you work from?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
The process
We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take most of a day for a typical house, less for a few frames. 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.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- On commercial sites, let us know about site rules
- Try not to wet indoor joints just before the visit
- Mention any leaks or damp you’ve noticed
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Read more
What the job involves on each surface
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall and tooled smooth.
Composite doors
An exposed front door gets wind-driven rain. Those corners get the most care.
What window mastic looks like in Selling
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. With historic houses such as Belmont House and Gardens (about 3.4 miles west) nearby, there’s older building stock in the area around Selling as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Selling station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Selling is about 3 miles south-east of Faversham, in Kent. If you need window mastic in Selling, it’s easy to get a quote: please phone 0345 464 0079 or email us. We’re based in Crawley and cover Kent. Across Kent, we cover 922 places, and Selling is one of them. We also work in Chelmsford, about 37 miles from Selling.
Postcode districts we cover here for window mastic: ME13. You’ll find streets such as Selling Road, Selling Court and Vicarage Lane, and we cover them all. Neighbouring places we cover for window mastic include 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). Further out, 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).
Landmarks near Selling
Around Selling, our work takes us to homes and buildings near The White Lion Public House. The closest station to Selling is Selling station, about 0.8 miles north-east. Well-known places in the area include Tower keep castle at Chilham (2.5 miles south-east).
Landlord and commercial work in Selling
We also work for property managers and facilities teams in Selling and across Kent. We can quote a run of properties together, and we are fully insured for the work.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.