Kent · England
Window Mastic in Kent Street
Mastic around window and door frames, sills and patio doors for Kent Street, backed by a 12-month guarantee. Ask us for a quote.
- Draughts coming in around windows and doors
- Black, perished sealant on frames
- Cracked or shrunken mastic around the frame
About our window mastic in Kent Street
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We’re often asked to deal with cracked or shrunken mastic around the frame and damp patches on the reveal after heavy rain, across composite doors, window sills and timber windows & doors.
Homes in small places like Kent Street often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
You’re covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or send us an email.
- Where
- Kent Street (ME18)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work cannot fix
In fairness, some problems need a different trade:
- Damp problems in the wall away from the window
- Rotten timber, which needs a joiner first
- Misting between the panes of a double-glazed unit (that needs a new unit)
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Where we work in Kent Street
- Aluminium frames
- Composite doors
- uPVC windows
- Window sills
- Patio & French doors
- Timber windows & doors
Common questions in Kent Street
Can you help a landlord with a rental near Wateringbury station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Is Kent Street within the area you cover?
Yes. Kent Street is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
How long will my window job take?
A handful of frames is a short visit, while a whole house takes longer. You will get a timescale with the quote.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and sealing the inside and outside joints closes that path.
Can you do upstairs windows?
Yes, in most cases. Access is planned before we start.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all.
Are you insured?
Yes, we’re fully insured for domestic and commercial work.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
How we quote for window mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Access and height
- The type of sealant required
- How many areas need sealing
- The amount of work
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
To make quoting easier, let us know:
- What’s wrong with the joints now
- The rough size of the job
- Any previous sealing or DIY work
- The type of property
For a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before we start.
How the job changes by surface
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We’ll tell you if that’s what we find.
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.
How the visit works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a handful of frames, longer for a whole house. Somewhere as small as Kent Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Mention any parking rules near the property
Getting a quote
Asking for a quote is easy: let us know the job and the location. A few photos by email make the job easier to understand.
Advice
Also near Kent Street
Other services in Kent Street
Why it’s worth doing now in Kent Street
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished, and it’s easier while the walls are being worked on anyway. Where a wall is exposed, as many are in small places like Kent Street, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
No two jobs are quite the same, 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.
Why Kent Street clients choose us
- Colour picked to suit the job
- Any old sealant cut out fully, not covered over
- Arbo and Everbuild products
- Homes, businesses and hotels
Read our cost guide and what customers say.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Paint up to the joint, not over it
- Don’t use solvent cleaners on the joint
- Keep timber frames painted
- Keep drainage slots and sill grooves clear
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Frames and glazing around Kent Street
Historic houses like Old Soar Manor (about 2.8 miles west) are a reminder that the area around Kent Street has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
Rented homes near Wateringbury station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. In the older streets around St Lawrence's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Kings Hill School? Then its window and door frames need their mastic kept sound, just like a home’s.
Kent Street is about 6 miles west of Maidstone, in Kent. Kent Street gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our area takes in 922 places across Kent. For nearby work, see our London page (26 miles or so).
We cover every part of ME18 for window mastic and the streets around it. If you need window mastic at a property on Kent Street and Malling Road or anywhere close by, we can help. Nearby, we also carry out window mastic in Herne Pound (1 mile south-west), Mereworth (1 mile south), New Pound (1 mile west), Pizien Well (1 mile south-east) and Swanton (1 mile south-west). Within a short drive, we also cover Maidstone (6 miles east), Dartford (14 miles north-west), Sevenoaks (9 miles west), Royal Tunbridge Wells (10 miles south-west), Gravesend (11 miles north) and Tonbridge (7 miles south-west).
Landmarks near Kent Street
We work in homes and buildings around The Queens Head Public House and Manor Park Country Park. For rail, the closest station is Wateringbury station, about 2.1 miles south-east. Nearby you will also find Beechin Wood Archery Museum (2.5 miles north-west) and Maidstone Hospital (4.3 miles east).