Kent · England
Ashbank Window Mastic
Window mastic in Ashbank from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
- Gaps left after new windows were fitted
Window mastic for homes and businesses in Ashbank
Around Ashbank we seal all kinds of frames: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. Typical jobs include cold air getting in at the frame edge and gaps left after new windows were fitted, across window sills, patio & French doors and timber windows & doors.
Homes in small places like Ashbank 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.
Every job comes with our one-year guarantee.
- Place
- Ashbank (ME17)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
New sealant cannot fix everything, and we will tell you before we start. Sealant won’t put right:
- Damp problems in the wall away from the window
- Soft or decayed wood in the frame
- Worn gaskets, brush seals or a door that has dropped
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before booking.
What we seal
- Window sills
- Patio & French doors
- Composite doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
What affects the cost of window mastic
You’ll get a clear quote before we start. It takes into account:
- Access and height
- Whether old sealant or filler has to be cut out
- Whether there’s mould to deal with
- How much there is to do
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
What we need to know
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- The rough size of the job
- Where the property is
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that is easy.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
FAQs for Ashbank
Is Ashbank in your area for window mastic?
Yes. Our work covers London and the South East, and Ashbank is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job.
Will you come out to Ashbank?
Yes. Ashbank 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.
Is it messy?
We keep the work tidy. We protect what’s around the joints, and we clear up when we are done.
Can you seal over the old sealant?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Will new mastic stop draughts?
Often, yes. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
Do you guarantee window mastic?
Yes. Our 12-month guarantee covers every job, inside or out.
More services for Ashbank
Leave it or put it right?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. Where a wall is exposed, as many are in small places like Ashbank, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Fully insured
- Arbo and Everbuild products
- Anti-fungal sanitary silicone in wet areas
- Every job guaranteed for a year
See what affects the cost and what customers say.
How it works
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for a few frames, or a day or more for a whole house. In a small place like Ashbank, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Preparing for the visit
- Clear items away from the joints we are working on
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
Ask for a quote
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or drop us an email with the details and send photos if you have them.
Related advice
Ashbank homes and the weather
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. Historic houses like Leeds Castle (about 0.6 miles east) are a reminder that the area around Ashbank has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
For site and facilities teams at buildings such as Leeds and Broomfield Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Nicholas's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Ashbank is about 4 miles east of Maidstone, in Kent. Anywhere in ME17, we cover window mastic for homes and businesses. 922 places in Kent are on our list. Chelmsford is on our list too, about 34 miles from Ashbank.
Jobs for window mastic in ME17 works the same way as everywhere else we cover. Streets in the area include George Lane and Wykeham Grove. If you’re just outside Ashbank, we cover Leeds (1 mile south-west), Broomfield (1 mile south-east), Eyhorne Street (1 mile north-east), Chegworth (1 mile east) and Hollingbourne (2 miles north-east). Within a short drive, we also cover Maidstone (4 miles west), Ashford (13 miles south-east), Sittingbourne (8 miles north-east), Tonbridge (15 miles west), Faversham (12 miles east) and Minster (14 miles north-east).
What’s near Ashbank
In Ashbank, that means homes and buildings near The George Inn. Ashbank’s nearest station is Hollingbourne station, roughly 1.1 miles north-east. A little further out are KIMS hospital (3.6 miles north-west) and The Dog Collar Museum (0.6 miles east). Not far away are Detling Hill.
Landlords, agents and businesses in Ashbank
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
When to call us in Ashbank
Joint shape matters as much as the product. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. That is what backing rod is for.
If you can see any of these, it’s time to have the joints looked at:
- Draughts coming in around windows and doors
- A bead that does not match the frame
- Damp patches on the reveal after heavy rain
- Old mastic that has gone black or come away
For landlords with property near Hollingbourne station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What your quote should include
- Whether the sealant suits the joint
- How the surfaces are prepared before sealing
- Whether VAT is included
- What insurance they hold