Kent · England
Window Mastic in Kippington
Mastic around window and door frames, sills and patio doors in Kippington, with a one-year guarantee on every job. Ask us for a quote.
- Gaps left after new windows were fitted
- Water coming in at the bottom corners of a door
- Draughty joints inside around the window
How we handle window mastic in Kippington
There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you are dealing with mastic that’s falling out in pieces and rain getting in at the frame or under the sill, we can put it right, on composite doors, window sills and aluminium frames alike.
Around Kippington, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or email us.
- Where
- Kippington (TN13, TN14, TN15)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. 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. For a job in Kippington, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Keep children and pets away from the work area
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or send us an email.
Related advice
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep timber frames painted
- Avoid blasting the frames with a pressure washer
- Make sure the drainage slots are not blocked
- Do not use solvent cleaners on the joint
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
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. Any of these is worth a call.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
What happens if it’s left?
Not every sealant suits a window. Interior caulk and bathroom silicone are not made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Around Kippington, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
Why book with us
- We agree the colour with you first
- 4.9 on Google from 180+ five-star reviews
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
Take a look at what affects the cost and what customers say.
Different surfaces, different methods
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the sealant goes in between frame and wall.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Your questions about window mastic in Kippington
I let a flat near Sevenoaks station. Can you help?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Do you cover smaller places like Kippington?
Yes. Kippington is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
How long does it take to reseal the windows on a house?
Allow a morning for a couple of windows and a door. Access and how stubborn the old mastic is affect the time most.
Do you seal inside as well as outside?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Are you insured?
Yes. Mr Mastic is fully insured.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Windows and doors in Kippington
Historic houses like Knole House (about 1.2 miles east) are a reminder that the area around Kippington 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you look after a building such as St Thomas' Catholic Primary School, its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Sevenoaks station, renewing tired window mastic between tenants heads off draught and damp complaints.
Kippington is about 1 mile south of Sevenoaks, in Kent. If you need window mastic in Kippington, please ring 0345 464 0079 or email us for a quick quote. We cover Kent from our Crawley base, Kippington included. Across Kent, we cover 922 places, Kippington among them. We also work in Crawley, about 19 miles from Kippington.
All of TN13, TN14 and TN15 is covered for window mastic, from the main roads to the quietest streets. Window mastic is available to properties on Glebe Lane, Beech Road and Grange Road and the roads around them. We also cover Sevenoaks (1 mile north), Bessels Green (1 mile north-west), Riverhead (1 mile north), Dunton Green (2 miles north) and Chipstead (2 miles north-west). We also work in nearby towns such as Maidstone (15 miles east), Dartford (12 miles north), Royal Tunbridge Wells (10 miles south), Gravesend (14 miles north-east), Tonbridge (7 miles south-east) and Northfleet (13 miles north-east).
Landmarks near Kippington
Locally, jobs take us to homes and businesses close to Montreal Park, New Beacon School and Knole Academy and the streets around them. The nearest railway station is Sevenoaks station, roughly 0.5 miles north. Nearby you’ll also find Kemsing Castle Bank (3.3 miles north-east) and Sevenoaks Museum (0.7 miles east). Not far away are Dryhill Nature Reserve.
Towns and villages near Kippington
More services for Kippington
How we quote for window mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- Working hours on commercial sites
- How many areas need sealing
- The type of sealant required
- Any mould that needs treating
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Helping us quote
To make quoting easier, let us know:
- The address or postcode of the job
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
- If someone has resealed it before
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
What we cannot put right
In fairness, some problems need a different trade:
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
- Penetrating damp from a failed cavity tray or render
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Where we work in Kippington
- Timber windows & doors
- Aluminium frames
- Patio & French doors
- Composite doors
- uPVC windows
- Window sills
