Kent · England
Window Mastic in Potter's Forstal
Window mastic in Potter's Forstal from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Water coming in at the bottom corners of a door
- Cracked internal joints between frame and plaster
- Black, perished sealant on frames
About our window mastic in Potter's Forstal
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. We’re often asked to deal with water coming in at the bottom corners of a door and cracked or shrunken mastic around the frame, on patio & French doors, timber windows & doors and composite doors.
In a village or hamlet like Potter's Forstal, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Big or small, you get the same 12-month guarantee.
- Where
- Potter's Forstal (TN27)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Potter's Forstal
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Don’t paint over the silicone
- Ventilate rooms so frames don’t stay wet inside
- Make sure the drainage slots aren’t blocked
- Avoid harsh chemicals near the mastic
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
What sealant work cannot fix
To be straight with you, there are a few things sealant will not fix:
- Damp problems in the wall away from the window
- A failed sealed unit that has misted up
- Faulty window hardware
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly.
Surfaces we seal
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Timber windows & doors
- Patio & French doors
What the job involves on each surface
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we’ll tell you before going ahead, as that’s a job for a joiner.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
The process
There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours for a handful of frames, longer for a whole house from start to finish. Somewhere as small as Potter's Forstal, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
Before we arrive
- Mention any sign-in or site rules at work premises
- Keep pets and children clear of the area while we work
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, phone 0345 464 0079 or send us an email.
Related advice
What window mastic looks like in Potter's Forstal
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Egerton Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Potter's Forstal is about 8 miles north-west of Ashford, in Kent. Across the TN27 area, we can carry out window mastic at your property. Potter's Forstal is one of 922 places in Kent where we work. Our Crawley page covers work nearby (39 miles or so).
Work in TN27 works the same way as everywhere else we cover. We also cover the places around Potter's Forstal: Egerton Forstal (1 mile south-east), Pembles Cross (1 mile north), Newland Green (1 mile south-east), Mundy Bois (1 mile south-east) and Egerton (1 mile east). Larger places within reach include Maidstone (9 miles north-west), Ashford (8 miles south-east), Sittingbourne (11 miles north), Faversham (12 miles north-east), Kings Hill (14 miles north-west) and Davington (12 miles north-east).
Near you in Potter's Forstal
The closest station to Potter's Forstal is Pluckley station, roughly 2.9 miles south-east. Well-known places in the area include Coldbridge Castle (0.8 miles north-west).
When to call us in Potter's Forstal
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Keep an eye out for these signs:
- Mastic that is falling out in pieces
- Whistling draughts around closed windows
- Mastic that has split away from the wall
- Untidy mastic left by window fitters
Rented homes near Pluckley station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- How much experience the applicator has
- What insurance they hold
- What the quote includes, VAT included or not
- Whether you can choose the colour
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Your questions about window mastic in Potter's Forstal
Can you do window mastic in Potter's Forstal?
Yes. Our work covers London and the South East, and Potter's Forstal is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Will you come out to Potter's Forstal?
Yes, Potter's Forstal is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Do you remove the old sealant?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Is the new sealant paintable?
Not normally, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we’re using.
Do you work for landlords and businesses?
Yes. We work in homes, commercial premises and hotels, and we’re fully insured.
Can you work on commercial sites?
Yes, regularly. We can plan bigger jobs in stages.