Kent · England
Window & door mastic in Swattenden, Kent
Mastic around window and door frames, sills and patio doors for Swattenden, backed by a one-year guarantee. Ask us for a quote.
- Cracked internal joints between frame and plaster
- Rain getting in at the frame or under the sill
- Untidy mastic left by window fitters
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Window mastic for homes and businesses in Swattenden
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. We’re often asked to deal with draughty joints inside around the window and white mastic on grey or black frames, across uPVC windows, patio & French doors and composite doors.
Mastic can only go onto a dry, clean joint, so window work in Swattenden is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Swattenden (TN17)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What affects the cost of window mastic
Jobs vary more than people expect. What affects the quote:
- Access and height
- The size of the job
- How many rooms, windows or areas are involved
- The product the joint needs
The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Whether it has been sealed before
- What’s wrong with the joints now
- The address or postcode of the job
- A few photos by email, if you can
Getting a quote is simple: let us know the job and the location. A few pictures by email make the job easier to understand.
How to look after the new joints
Looking after new joints is easy:
- Look round the frames every year or so
- Paint up to the joint, not over it
- Keep drainage slots and sill grooves clear
- Keep solvents and bleach off the sealant
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
A failed joint lets water into the wall a little at a time. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Honest limits
To be straight with you, some problems need a different trade:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp problems in the wall away from the window
- Soft or decayed wood in the frame
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Window sills
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Composite doors
- Aluminium frames
The process
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take most of a day for a typical house, less for a few frames. Somewhere as small as Swattenden, 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.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
Ask for a quote
If you’re in Swattenden and need window mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before work begins.
Related advice
Surface by surface
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
Landlord and commercial work in Swattenden
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Housing providers, facilities teams and property managers book us too in Swattenden and across Kent. We can quote a run of properties together, and we are fully insured.
Towns and villages near Swattenden
Also in Swattenden
Swattenden questions
Can you do window mastic in Swattenden?
Yes. We work across London and the South East, and Swattenden is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Is there a guarantee on window mastic in Swattenden?
All our work, in Swattenden and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Can you reach windows above the ground floor?
Yes, in most cases. We plan safe access before the job, so mention the height and anything in the way.
Will it make a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
How long does it take to reseal the windows on a house?
The work takes most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we’re fully insured.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Do you work for letting agents?
Yes, regularly. Several properties can be quoted together.
Swattenden homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Cranbrook School? Then larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Congregational Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Swattenden is about 12 miles east of Royal Tunbridge Wells, in Kent. Homes, rented property, offices and hotels in Swattenden is covered for window mastic. Every job comes with our one-year guarantee. Our Kent coverage runs to 922 places, and Swattenden is one of them. For nearby work, see our Crawley page.
We work across the TN17 postcode area for window mastic. Nearby, we also carry out window mastic in Hartley (1 mile west), Cranbrook (1 mile north), Baker's Cross (1 mile north-east), Coursehorn (1 mile north-east) and Gill's Green (2 miles south-west). Larger places within reach include Maidstone (13 miles north), Ashford (15 miles east), Royal Tunbridge Wells (12 miles west), Tonbridge (14 miles north-west), Kings Hill (14 miles north) and Foley Park (14 miles north).
What’s near Swattenden
In Swattenden, that means homes and buildings near Duke Of York Public House Little Tudor and Crane Valley. Nearby you’ll also find Sissinghurst Castle (3.2 miles north-east) and Benenden Hospital (3.9 miles east).