Kent · England
Window Mastic in Broadstone
Our applicators work in Broadstone on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Hard, cracked sealant around windows
- Rushed sealant from a window installation
- Cracked internal joints between frame and plaster
About our window mastic in Broadstone
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. If you are dealing with cracked or shrunken mastic around the frame and leaking joints at the ends of sills, we can help, whatever the surface.
Around Broadstone, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
We stand behind the work with a one-year guarantee, so you’re covered after we have gone.
- Where
- Broadstone (ME17)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Common questions in Broadstone
I let a flat near Lenham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Do you cover smaller places like Broadstone?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
When is the sealant fully cured?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
How many windows can you do in a day?
A handful of frames is a short visit. You’ll get a timescale with the quote.
Can you seal over the old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Honest limits
To be straight with you, some problems need a different trade:
- Damp problems in the wall away from the window
- Rotten timber, which needs a joiner first
- A sash or casement that will not close properly
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Broadstone
- Patio & French doors
- Aluminium frames
- uPVC windows
- Timber windows & doors
- Window sills
- Composite doors
Also near Broadstone
Also in Broadstone
What window mastic looks like in Broadstone
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Leeds Castle (about 3.7 miles north-west) are a reminder that the area around Broadstone 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.
Leeds Castle, about 3.7 miles north-west, is one of the historic houses in the wider area around Broadstone, and older homes nearby need a sealant that suits their walls.
Broadstone is about 8 miles south-east of Maidstone, in Kent. Across the ME17 area, our applicators can take on window mastic. Across Kent, we cover 922 places, and Broadstone is one of them. Crawley is on our list too, around 38 miles away.
Postcode districts we cover here for window mastic: ME17. Local streets include Boughton Park, Headcorn Road and Eastwood Road, and we cover them all. Other places close to Broadstone include Eastwood (1 mile north-west), Grafty Green (1 mile north-east), Liverton Street (1 mile north-east), Boughton Malherbe (1 mile north-east) and Ulcombe (1 mile north-west). Further out, we also cover Maidstone (8 miles north-west), Ashford (10 miles south-east), Sittingbourne (10 miles north), Faversham (12 miles north-east), Kings Hill (12 miles north-west) and Davington (12 miles north-east).
Near you in Broadstone
Locally, jobs take us to homes and businesses close to The Kings Head Public House. Broadstone’s nearest station is Lenham station, roughly 2.9 miles north-east of the centre. Nearby you’ll also find Coldbridge Castle (1.2 miles east) and The Dog Collar Museum (3.6 miles north-west).
How the job changes by surface
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
How the visit works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a morning for a couple of windows and a door. For a village or hamlet like Broadstone, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Before we arrive
- Tell us if parking is tricky
- Clear the area around the work
- Plan for the work area to be out of bounds to pets and children
Getting a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few photos by email make the job easier to understand.
Read more
Do you need window mastic in Broadstone?
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.
If you can see any of these, it’s time to have the joints looked at:
- Mastic that is falling out in pieces
- Rain getting in at the frame or under the sill
- Gaps left after new windows were fitted
- Draughts coming in around windows and doors
Letting a property close to Lenham station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before you book anyone
- What the cure time is
- Whether VAT is included
- The length of the guarantee
- Who turns up on the day
Leave it or put it right?
Not every sealant suits a window. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Older cottages and farmhouses around Broadstone can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why us?
- White, clear, grey or another colour, product permitting
- Anti-fungal sanitary silicone in wet areas
- We agree the colour with you first
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced or what customers say.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
For anyone letting property in or around Broadstone, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.