Kent · England
Window Mastic in West Street
Mastic around window and door frames, sills and patio doors in West Street, with a one-year guarantee on every job. Call for a quick quote.
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
- Draughts coming in around windows and doors
Common questions in West Street
Can you do window mastic in West Street?
Yes, West Street is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Will you come out to West Street?
Yes. West 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.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Is the new sealant paintable?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Where are you based?
We work from Crawley. We cover West Street and the rest of Kent, along with the rest of our area.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Do you seal inside as well as outside?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
Window mastic for homes and businesses in West Street
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. We’re often asked to deal with untidy mastic left by window fitters and mastic that’s falling out in pieces, across timber windows & doors, window sills and aluminium frames.
In a village or hamlet like West Street, 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.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- West Street (ME17)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When it is not the sealant
New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:
- A door that needs adjusting, rehanging or new seals
- Broken hinges, locks or handles
- Rotten timber, which needs a joiner first
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Composite doors
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Window sills
- uPVC windows
Why act early in West Street
Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It soon lifts and the leak carries on behind it. Proper resealing starts with removing the old joint. Where a wall is exposed, as many are in small places like West Street, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why choose Mr Mastic in West Street
- We leave the area clean and tidy
- Every job guaranteed for a year
- We agree the colour with you first
- 20+ years of sealant experience
Read how sealant jobs are priced and our reviews.
What the job involves on each surface
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. We seal onto sound, dry paintwork or timber.
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We’ll tell you if that is what we find.
Towns and villages near West Street
Other services in West Street
Window mastic in West Street: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Leeds Castle (about 4.2 miles west) are a reminder that the area around West Street 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.
Historic houses such as Leeds Castle, about 4.2 miles west, show how far back building around West Street goes. If you let a flat or house near Lenham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
West Street is about 6 miles south of Sittingbourne, in Kent. Anywhere in ME17, our applicators can take on window mastic. Our Kent coverage runs to 922 places, and West Street is one of them. For nearby work, see our Chelmsford page.
Jobs for window mastic in ME17 works the same way as everywhere else we cover. We also cover the places around West Street: Woodside Green (1 mile south-east), Payden Street (1 mile east), Lenham (1 mile south-west), Warren Street (2 miles east) and Wichling (2 miles north-east). Larger places within reach include Maidstone (9 miles west), Ashford (10 miles south-east), Canterbury (15 miles east), Sittingbourne (6 miles north), Whitstable (15 miles north-east) and Faversham (8 miles north-east).
Around West Street
Locally, jobs take us to homes and businesses close to Kiln Wood. For rail, the closest station is Lenham station, roughly 1.6 miles south-west. Well-known places in the area include Newnham Castle (3.9 miles north-east).
When to call us in West Street
Frames are never completely still. A plastic or aluminium frame lengthens in sunshine and shortens as it cools, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
These are the problems we are asked about most:
- White mastic on grey or black frames
- Leaking joints at the ends of sills
- Gaps between the frame and the inside reveal
- Old mastic that has gone black or come away
If you look after a building such as The Lenham School, its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- How the surfaces are prepared before sealing
- Is the old sealant removed completely?
- What guarantee comes with the work
- How long to leave it before use
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Avoid blasting the frames with a pressure washer
- Keep paint off silicone joints
- Keep solvents and bleach off the sealant
- Wash the frames with mild soapy water
Try not to touch the new joint while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
The process
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. Once we have agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours for a few frames, or a day or more for a whole house. In a small place like West Street, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
Get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.