Kent · England
Window & door mastic in Westbere, Kent
Window mastic in Westbere from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Whistling draughts around closed windows
- Old mastic that has gone black or come away
- Cracked or shrunken mastic around the frame
Window mastic in Westbere, done properly
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through. Where the air is getting in through the window itself, we will say so. We’re often asked to deal with old mastic that has gone black or come away and sealant in the wrong colour for the frame, on aluminium frames, uPVC windows and composite doors.
Mastic can only go onto a dry, clean joint, so window work in Westbere is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Your job is guaranteed for a year, as with all our work.
- Location
- Westbere (CT2)
- Region
- Kent
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, 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.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Older cottages and farmhouses around Westbere can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
What you get with us
- Neat joints and a tidy finish
- Quality sealants from Arbo and Everbuild
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
Take a look at what affects the cost and customer reviews.
Places near Westbere
More services for Westbere
Windows and doors in Westbere
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Sturry station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. If you live in an older home near Church of All Saints, the joint between an old wall and a newer frame is normally the first place rain gets in.
Westbere is about 3 miles north-east of Canterbury, in Kent. Across the CT2 area, our applicators can take on window mastic. Westbere is one of 922 towns and villages in Kent we cover for window mastic. Chelmsford is on our list too, around 41 miles away.
Here we cover the CT2 postcode area for window mastic. Whether your property is on Island Road, Pennington Close and Bushy Hill Road or anywhere close by, we can help. Nearby, we also carry out window mastic in Hersden (1 mile north-east), Sturry (1 mile west), Calcott (2 miles north-west), Broad Oak (2 miles west) and Stodmarsh (2 miles east). Larger places within reach include Canterbury (3 miles south-west), Margate (11 miles north-east), Dover (14 miles south-east), Ramsgate (12 miles east), Broadstairs (13 miles east) and Whitstable (6 miles north-west).
Local landmarks in Westbere
Around Westbere, our work takes us to homes and buildings near Hersden Village Primary School, Ye Olde Yew Tree Inn and Frank Montgomery School. The nearest railway station is Sturry station, roughly 1.2 miles south-west. Well-known places in the area include Canterbury Castle (3.9 miles south-west) and Canterbury Roman Museum (3.5 miles south-west). Open spaces near Westbere include West Blean and Thornden Woods.
What affects the cost of window mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- How easy the joints are to reach
- Mould in or behind the old joints
- The size of the job
- The type of sealant required
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What to tell us for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Whether it’s a home or a business
- The rough size of the job
- If someone has resealed it before
- What’s wrong with the joints now
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Different surfaces, different methods
Composite doors
A composite door usually sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
What we do, step by step
There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the work takes anything from an hour or two to a full day, depending on how many frames there are in most cases. In a small place like Westbere, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- 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.
How to prepare
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
How to get a quote
To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Related advice
Signs you need window mastic in Westbere
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
Common reasons people contact us are:
- Gaps where the sill meets the wall
- Rushed sealant from a window installation
- Mastic that is falling out in pieces
- Hard, cracked sealant around windows
For site and facilities teams at buildings such as Spires Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- Whether they’re fully insured
- How long to leave it before use
- Is VAT in the price?
- How hidden problems are handled
FAQs for Westbere
Do you cover smaller places like Westbere?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Westbere for window mastic?
Yes, Westbere is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
How much does window mastic cost in Westbere?
Every job is different, so each one gets its own quote. To get one, call 0345 464 0079 or drop us an email and tell us what needs doing and where.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Will the old sealant be removed?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can I paint over the new sealant?
That depends on the product. Silicone isn’t paintable, but some hybrid sealants are. Mention any painting plans before any work starts.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- Penetrating damp from a failed cavity tray or render
- A failed sealed unit that has misted up
- A frame that has rotted at the joint
If you are not sure, just ring 0345 464 0079 or email us and we’ll give you a straight answer.
What we seal
- Patio & French doors
- Window sills
- Timber windows & doors
- Composite doors
- uPVC windows
- Aluminium frames