Kent · England
Swalecliffe Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Swalecliffe and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked internal joints between frame and plaster
- Draughts coming in around windows and doors
- Mastic that has split away from the wall
What the job involves on each surface
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Window mastic in Swalecliffe
There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. We work on aluminium frames, composite doors and window sills, and the jobs we see most are gaps left after new windows were fitted and gaps where the sill meets the wall.
Homes around Swalecliffe range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
All of our work is guaranteed for twelve months, in Swalecliffe and everywhere else we cover.
- Where
- Swalecliffe (CT5)
- Region
- Kent
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026

What sealant work cannot fix
A few problems are outside what sealant work can do:
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
- Draughts through the window seals rather than the frame
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Swalecliffe
- Window sills
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Patio & French doors
- Composite doors
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Repaint timber before it’s bare
- Keep drainage slots and sill grooves clear
- Do not use solvent cleaners on the joint
- Avoid blasting the frames with a pressure washer
Most silicone sealants will not take paint, so mention any painting plans before work begins. There are paintable sealants for joints that need it.
Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
The process
At the end, we look at the finished work together and tell you how long to leave it. The visit itself normally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In a smaller place like Swalecliffe, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Before we arrive
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Ask for a quote
For window mastic in Swalecliffe, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Frames and glazing around Swalecliffe
Swalecliffe is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around window and door frames, especially on the side facing the sea. 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.
If you live in an older home near Church of St John the Baptist, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Managing a site like Swalecliffe Community Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Chestfield & Swalecliffe station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Swalecliffe is about 2 miles east of Whitstable, in Kent. Our applicators cover window mastic for householders, landlords and businesses in Swalecliffe and the surrounding area. Swalecliffe is one of 922 places in Kent we cover. We also work in Chelmsford, around 36 miles away.
Here we cover the CT5 postcode area for window mastic. Streets in the area include Kemp Road, Brook Road and Burnan Road. You’ll find Swalecliffe on the A2990, so it’s easy for us to get to with everything needed for window mastic. Neighbouring places we cover for window mastic include Chestfield (1 mile south), Tankerton (1 mile west), West End (1 mile south-east), Hampton (2 miles north-east) and Whitstable (2 miles west). Further out, we also cover Canterbury (6 miles south), Margate (14 miles east), Sittingbourne (14 miles west), Ramsgate (15 miles east), Faversham (8 miles west) and Herne Bay (3 miles east).
Around Swalecliffe
Typical jobs here are in homes near The Whitstable School and The Plough pub. There’s a railway station in Swalecliffe itself: Chestfield & Swalecliffe station. A little further out are Whitstable and Tankerton Hospital (0.7 miles west) and Tankerton Castle (1.3 miles west). For a walk, there’s West Blean and Thornden Woods.
Why it’s worth doing now in Swalecliffe
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Around Swalecliffe, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why choose Mr Mastic in Swalecliffe
- Fully insured
- An ARBOMaster approved applicator
- A 12-month guarantee on all work
- Over 20 years’ experience
Read what affects the cost or what customers say.
Swalecliffe questions
Do you cover smaller places like Swalecliffe?
Yes. Swalecliffe is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Does the coastal weather in Swalecliffe affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we are using and why.
Can you get sealant to suit coloured frames?
Yes. We can use white, brown, anthracite grey, black or clear, so the joint suits the frame.
Do you work on first-floor windows?
Yes, where they can be reached safely. Tell us about access when you get in touch so we can plan the job.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
How do I get a quote for window mastic in Swalecliffe?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Landlord and commercial work in Swalecliffe
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
For anyone letting property in or around Swalecliffe, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
Nearby places to Swalecliffe
Other services in Swalecliffe
What affects the cost of window mastic
Call for a quick quote. What matters most is:
- The number and length of the joints
- Whether old sealant or filler has to be cut out
- Access and height
- Any mould that needs treating
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Whether it has been sealed before
- Photos by email, if that’s easy
- What’s wrong with the joints now
- Access, such as stairs, a lift or height
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and give you a clear price.
