Kent · England
Window & door mastic in Shipbourne, Kent
Problem with your window and door frames in Shipbourne? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Draughts coming in around windows and doors
- Damp patches on the reveal after heavy rain
- Rushed sealant from a window installation
Why deal with it now?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Around Shipbourne, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
Why choose Mr Mastic in Shipbourne
- Any old sealant cut out fully, not covered over
- White, clear, grey or another colour, product permitting
- 20+ years of sealant experience
- Rated 4.9 stars on Google
Read our cost guide and what customers say.
Window mastic in Shipbourne, done properly
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on patio & French doors, timber windows & doors and aluminium frames, and people most often call us about cracked or shrunken mastic around the frame and mastic that’s falling out in pieces.
Outdoor sealant needs dry, clean surfaces, so work on frames around Shipbourne is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Every job is covered by a one-year guarantee, wherever you are in Kent.
- Where
- Shipbourne (TN11)
- Wider area
- Kent
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
A few problems are outside what sealant work can do:
- A door that needs adjusting, rehanging or new seals
- Soft or decayed wood in the frame
- Condensation trapped between the panes
If in doubt, call 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Shipbourne
- Composite doors
- Aluminium frames
- uPVC windows
- Patio & French doors
- Timber windows & doors
- Window sills
How the job changes by surface
Patio & French doors
Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that, where a rigid one would crack.
Aluminium frames
Metal frames expand in the sun and are often slim, with little room for error. A neat, narrow bead in a colour to match keeps the clean look.
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Windows and doors in Shipbourne
With historic houses such as Ightham Mote (about 1.1 miles north-west) nearby, there’s older building stock in the area around Shipbourne as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
If you let a flat or house near Borough Green & Wrotham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For an older house near a landmark such as Church of St Giles, frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you look after a building such as Shipbourne School, larger buildings have plenty of frames, and the mastic around each one ages.
Shipbourne is about 3 miles north of Tonbridge, in Kent. Across the TN11 area, we can carry out window mastic at your property. Shipbourne is one of 922 towns and villages in Kent where we work for window mastic. There’s also a page for Crawley, roughly 23 miles from Shipbourne.
Here we cover the TN11 postcode area for window mastic. Streets in the area include Upper Green Road, Upper Green Lane and Back Lane. If you’re just outside Shipbourne, we cover Budds (1 mile west), Yopps Green (1 mile north), Sheet Hill (2 miles north), Ivy Hatch (2 miles north) and Coldharbour (2 miles south-west). Further out, we also cover Maidstone (11 miles east), Dartford (14 miles north), Sevenoaks (5 miles north-west), Royal Tunbridge Wells (8 miles south), Gravesend (13 miles north) and Tonbridge (3 miles south).
Local landmarks in Shipbourne
Locally, jobs take us to homes and businesses close to Ivy Hatch Nature Reserve, Hugh Christie Technology College and The Chaser Public House and the streets around them. Shipbourne’s nearest station is Borough Green & Wrotham station, about 3.3 miles north of the centre. A little further out are Ightham Court (3.3 miles north) and Hadlow Tower museum (2.8 miles south-east). Open spaces near Shipbourne include Barden Lake.
Shipbourne questions
Can you help a landlord with a rental near Borough Green & Wrotham station?
Yes. We work for landlords and agents as well as householders. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Is Shipbourne within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Will new mastic stop draughts?
It will if the frame joint is the problem. We check where the draught is before any work starts.
How long does it take to reseal the windows on a house?
A few frames take a few hours, while a whole house takes longer. We confirm the timing with your quote.
Do you take out the old sealant first?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
How it works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a handful of frames, longer for a whole house, and the area is left clean. Somewhere as small as Shipbourne, access is often the only tricky part. 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.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
- Let us know about earlier repairs to the joints
How to get a quote
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Advice
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Keep paint and stain on wooden frames in good order
- Avoid harsh chemicals near the mastic
- Clean frames with a soft cloth and soapy water
- Keep jet washers away from the mastic
Keep the new mastic undisturbed while it cures, following the cure time we give you. Keep jet washers away from the frames.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.
Towns and villages near Shipbourne
Other services in Shipbourne
How we quote for window mastic
We don’t publish a price list, because no two jobs are the same. What we look at:
- Which sealant suits the joint
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- How much there is to do
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- The address or postcode of the job
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
Need a quote? Please call 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before we start.