Kent · England
Boughton Lees Window Mastic
Window mastic for Boughton Lees, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps where the sill meets the wall
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
About our window mastic in Boughton Lees
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. Common call-outs are for mastic that has split away from the wall and black, perished sealant on frames, on timber windows & doors, uPVC windows and window sills.
Mastic can only go onto a dry, clean joint, so window work in Boughton Lees is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Boughton Lees (TN25)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
So the new joints stay in good condition:
- Check the mastic once a year
- Repaint timber before it’s bare
- Don’t use solvent cleaners on the joint
- Wash the frames with mild soapy water
On timber frames, keep the paintwork in good order, 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. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
Why it’s worth doing now in Boughton Lees
Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, using a product chosen for the frame and wall. Around Boughton Lees, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Why Boughton Lees customers choose us
- Approved under the ARBOMaster scheme
- Neat joints and a tidy finish
- Domestic, commercial and hotel work
- 4.9 on Google from 180+ five-star reviews
See what affects the cost and what customers say.
The process
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take most of a day for a typical house, less for a few frames. In a small place like Boughton Lees, access is usually the main thing to plan. 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.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Ask for 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.
Related advice
Different surfaces, different methods
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
Boughton Lees: your questions answered
Do you cover Boughton Lees for window mastic?
Yes, Boughton Lees is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
I let a flat near Wye station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Does the work come with a guarantee?
Yes. All our work carries a 12-month guarantee, and we’re fully insured.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
What should I tell you?
Let us know what needs doing and where, with pictures by email if possible. We will ask anything else we need to know.
When to call us in Boughton Lees
Timber windows bring their own problems. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
People usually contact us after spotting something like this:
- Black, perished sealant on frames
- Cold air getting in at the frame edge
- Mastic that has split away from the wall
- Draughty joints inside around the window
For an older house near a landmark such as Saint Christopher's Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
What your quote should include
- What the cure time is
- Whether you can choose the colour
- Are they insured?
- How long the guarantee is
Also near Boughton Lees
What else we do in Boughton Lees
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Frames and glazing around Boughton Lees
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. With historic houses such as Godinton House (about 3.4 miles south-west) nearby, there’s older building stock in the area around Boughton Lees as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as Towers School and Sixth Form Centre are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Wye station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Boughton Lees is about 4 miles north of Ashford, in Kent. Boughton Lees gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Boughton Lees is one of 922 places in Kent we cover. You can also see our page for Chelmsford, roughly 42 miles from Boughton Lees.
Postcode districts we cover here for window mastic: TN25. Whether your property is on Wye Road, Pilgrims Way and Faversham Road or anywhere close by, we can help. Neighbouring places we cover for window mastic include Kennington (2 miles south), Bockhanger (2 miles south-west), Potters Corner (2 miles south-west), Westwell (2 miles west) and Godinton (3 miles south-west). Within a short drive, we also cover Ashford (4 miles south), Canterbury (10 miles north-east), Sittingbourne (13 miles north-west), Folkestone (14 miles south-east), Whitstable (13 miles north-east) and Faversham (9 miles north).
Local landmarks in Boughton Lees
In Boughton Lees, that means homes and buildings near Flying Horse Inn, among other places. For rail, the closest station is Wye station, roughly 1.4 miles east. Well-known places in the area include William Harvey Hospital (3.3 miles south) and County Square (2.9 miles south-west). Open spaces near Boughton Lees include Hatch Park.