Kent · England
Swanley Village Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Swanley Village and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water coming in at the bottom corners of a door
- Draughts coming in around windows and doors
- Cracked or shrunken mastic around the frame
Why deal with it now?
Running fresh sealant over the old joint is tempting, but it will not 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 Swanley Village can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- We are fully insured
- Homes, businesses and hotels
- 20+ years of sealant experience
- Sanitary silicone with an anti-fungal additive in wet areas
See our cost guide and what customers say.
About our window mastic in Swanley Village
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. If you have whistling draughts around closed windows and untidy mastic left by window fitters, we can put it right.
Outdoor sealant needs dry, clean surfaces, so work on frames around Swanley Village is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
You get a one-year guarantee, the same in Swanley Village as everywhere else we work.

- Where
- Swanley Village (BR8)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Swanley Village
More services for Swanley Village
The process
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a few frames, or a day or more for a whole house. Somewhere like Swanley Village needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before we start.
Related advice
What we cannot put right
We will not take on work that won’t last, so here’s what sealant can’t put right:
- Penetrating damp from a failed cavity tray or render
- A door that needs adjusting, rehanging or new seals
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think.
Surfaces we seal
- Composite doors
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Window sills
- Aluminium frames
Common problems we fix in Swanley Village
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and the wood moves with damp as well as heat.
Common reasons people contact us include:
- Black, perished sealant on frames
- Draughty joints inside around the window
- Cold air getting in at the frame edge
- Hard, cracked sealant around windows
Homes close to Church of Saint Paul include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before you book anyone
- Is VAT in the price?
- What insurance they hold
- What the cure time is
- How long the guarantee is
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Make sure the drainage slots aren’t blocked
- Clean frames with a soft cloth and soapy water
- Ventilate rooms so frames don’t stay wet inside
- Repaint timber before it’s bare
Keep the new mastic undisturbed while it cures, following the cure time we give you. Keep jet washers away from the frames.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
What window mastic looks like in Swanley Village
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Lullingstone Castle (about 3.3 miles south) nearby, there’s older building stock in the area around Swanley Village as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Downsview Community Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Swanley station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Swanley Village is about 3 miles south-west of Dartford, in Kent. Every kind of property in Swanley Village is covered for window mastic. Every job comes with our 12-month guarantee. Our Kent coverage runs to 922 places, and Swanley Village is one of them. Our London page covers work nearby.
Work in BR8 works the same way as everywhere else we cover. We cover properties on Church Road, Hotham Close and School Lane. We also cover the places around Swanley Village: Hextable (1 mile north-west), Puddledock (1 mile north-west), Stonehill Green (1 mile north-west), Wilmington (2 miles north) and Joyden's Wood (2 miles north-west). Within a short drive, we also cover Dartford (3 miles north-east), Sevenoaks (9 miles south), Gravesend (8 miles east), Tonbridge (15 miles south), Northfleet (7 miles east) and Kings Hill (13 miles south-east).
Around Swanley Village
In Swanley Village, that means homes and buildings near Hextable School and the streets around them. For rail, the closest station is Swanley station, roughly 1.5 miles south-west. Nearby you will also find Eynsford Castle (2.5 miles south) and Dartford Library (2.8 miles north). Open spaces near Swanley Village include Wansunt Pit.
FAQs for Swanley Village
Do you work for landlords with property near Swanley station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Is Swanley Village within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before resealing.
How long does it take to reseal the windows on a house?
That depends on the number of frames, how they’re reached and the state of the old mastic. We will tell you how long your job needs when we quote.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can you do upstairs windows?
Yes, in most cases. Access is planned before we start.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
What affects the cost of window mastic
The price is agreed before any work begins. It’s based on:
- Whether there’s mould to deal with
- Access and height
- Which sealant suits the joint
- Working hours on commercial sites
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Helping us quote
When you contact us, it’s useful to know:
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- Whether it’s a home or a business
- What’s wrong with the joints now
For window mastic in Swanley Village, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
