Kent · England
Window & door mastic in Blean, Kent
Window mastic for Blean, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Untidy mastic left by window fitters
- Hard, cracked sealant around windows
- Sealant in the wrong colour for the frame
Window mastic in Blean, done properly
Around Blean we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on window sills, uPVC windows and composite doors, and common reasons people get in touch are water coming in at the bottom corners of a door and cracked or shrunken mastic around the frame.
Outdoor sealant needs dry, clean surfaces, so work on frames around Blean is planned for dry weather. 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.
- Where
- Blean (CT2)
- Wider area
- Kent
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Blean
Is Blean in your area for window mastic?
Yes. We work across London and the South East, and Blean is part of that. You can call 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near Canterbury West station?
Yes, we work for landlords and letting agents. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before we start.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Can you get sealant to suit coloured frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Where is Mr Mastic based?
We are based in Crawley, and we work across South East England, London and Scotland.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
When is the sealant fully cured?
That depends on the sealant used, so follow the cure time we give you.
Can you quote for more than one area?
Yes. Just list everything you need.
Quotes for window mastic in Blean
We quote each job individually. This is what makes a difference:
- Access and height
- The number of rooms or windows
- The product the joint needs
- Any mould that needs treating
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and send you a clear quote before we start.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- The problem you’ve noticed
- Any previous sealing or DIY work
- The type of property
To get a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
Work for landlords, hotels and businesses
For anyone letting property in or around Blean, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs, and pictures by email help.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
The process
Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it normally takes a few hours for a handful of frames, longer for a whole house. Somewhere as small as Blean, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any tricky access
- Mention any leaks or damp you’ve noticed
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
Related advice
Frames and glazing around Blean
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as Church of St Cosmus and St Damian, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Letting a property close to Canterbury West station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Blean is about 3 miles north-west of Canterbury, in Kent. Wherever you are in the CT2 postcode area, our applicators can take on window mastic. Our Kent coverage runs to 922 places, Blean among them. Our Chelmsford page covers work nearby.
Work in CT2 works the same way as everywhere else we cover. Window mastic is available to properties on Westfield, School Lane and Vicarage Lane and the roads around them. With the A290 close by, Blean is simple for us to get to. Neighbouring places we cover for window mastic include Honey Hill (1 mile north-west), Tyler Hill (1 mile east), Denstroude (1 mile north-west), Hackington (1 mile east) and Yorkletts (2 miles north-west). We also work in nearby towns such as Ashford (14 miles south-west), Canterbury (3 miles south-east), Sittingbourne (14 miles west), Whitstable (3 miles north), Faversham (7 miles west) and Herne Bay (6 miles north-east).
What’s near Blean
Typical jobs here are in homes near The Archbishop's School, Tyler Hill Meadow and St Edmund's School and the streets around them. Blean’s nearest station is Canterbury West station, roughly 2.1 miles south-east of the centre. A little further out are Sidney Cooper Museum (2.3 miles south-east) and Eastbridge Hospital of St Thomas the Martyr (2.4 miles south-east). Not far away are Blean Woods RSPB Reserve.
Towns and villages near Blean
What else we do in Blean
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Avoid harsh chemicals near the mastic
- Repaint timber before it’s bare
- Walk round the house once a year and look at the joints
- Wash the frames with mild soapy water
Check the drainage slots in the frames are not blocked, so water can run away instead of sitting against the joint.
Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.
Do you need window mastic in Blean?
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Common reasons people contact us include:
- Mastic that has split away from the wall
- Draughts coming in around windows and doors
- Gaps where the sill meets the wall
- Rushed sealant from a window installation
Managing a site like Blean Primary School? Then the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- Whether VAT is included
- What happens if they find a problem under the old sealant
- Which colour the sealant will be
- What preparation is included
What the job involves on each surface
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal. We use a neutral-cure product.
When it is not the sealant
In fairness, there are a few things sealant will not fix:
- Damp coming through the wall itself rather than the frame joint
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
What we seal
- Window sills
- Aluminium frames
- uPVC windows
- Composite doors
- Timber windows & doors
- Patio & French doors