Kent · England
Postling Window Mastic
Problem with your window and door frames in Postling? We cut out the old, prepare the joints and apply the right sealant.
- Whistling draughts around closed windows
- Gaps between the frame and the inside reveal
- Leaking joints at the ends of sills
How we handle window mastic in Postling
A cold draught around a closed window often comes from the frame edge. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. If you are dealing with mastic that has split away from the wall and gaps where the sill meets the wall, we can put it right, on uPVC windows, patio & French doors and aluminium frames alike.
In a village or hamlet like Postling, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
A 12-month guarantee comes with the work, just as it does everywhere we cover.

- Location
- Postling (CT21)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Quotes for window mastic in Postling
Call for a quick quote. What matters most is:
- Mould in or behind the old joints
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Ask us for a quote and we will go through it with you.
What we need to know
To make quoting easier, please include:
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
- Where the property is
For window mastic in Postling, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. It normally takes a few hours for a handful of frames, longer for a whole house. In a small place like Postling, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- 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.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
Get a quote
We don’t publish a price list. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or drop us an email.
Advice
Frames and glazing around Postling
Postling is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around window and door frames, especially on the side facing the sea. 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.
In the older streets around Church of St Mary and St Radegund, the joint between an old wall and a newer frame is usually the first place rain gets in. Rented homes near Sandling station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Postling is about 3 miles north of Hythe, in Kent. Homes, rented property, offices and hotels in Postling can book us for window mastic, old or new, large or small. Every job comes with our one-year guarantee. Our area takes in 922 places across Kent, large and small. Our Chelmsford page covers work nearby (50 miles or so).
Work in CT21 is quoted and booked the same way as anywhere else. We also cover the places around Postling: Stanford (1 mile south-west), Skeete (1 mile north), Etchinghill (1 mile east), Woodland (2 miles north) and Lyminge (2 miles north-east). Further out, we also cover Ashford (9 miles west), Canterbury (12 miles north), Dover (10 miles east), Folkestone (5 miles east), Hythe (3 miles south) and Tower Hamlets (10 miles east).
What’s near Postling
Around Postling, our work takes us to homes and buildings near Sandling Park, among other places. For rail, the closest station is Sandling station, about 1.3 miles south. Nearby you’ll also find Elham Valley Countryside Centre And Railway Museum (2.4 miles east) and Saltwood Castle (2.1 miles south-east). For a walk, there’s Tolsford Hill.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Questions from Postling
Will you come out to Postling?
Yes, Postling is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Sandling station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Can you do the inside joint as well?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
How long before the joint can be used?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Can you seal over the old sealant?
No, it will not last. It may look fine at first, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
When it is not the sealant
In fairness, some problems need a different trade:
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
- Broken hinges, locks or handles
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Postling
- uPVC windows
- Composite doors
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Window sills
What else we do in Postling
Landlord and commercial work in Postling
Landlords and agents in Postling can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
If you manage several properties in or around Postling, several properties can be quoted together. Just tell us the addresses and what each one needs.
Why deal with it now?
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Older cottages and farmhouses around Postling can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller. If you are unsure, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why us?
- 180+ five-star Google reviews
- Arbo and Everbuild products
- Tidy, careful work
- A choice of colours where the product allows
Read what affects the cost and our reviews.
What we are called out for in Postling
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.
Look out for any of the following:
- Mastic that’s falling out in pieces
- Sealant in the wrong colour for the frame
- Rain getting in at the frame or under the sill
- Untidy mastic left by window fitters
For site and facilities teams at buildings such as Brockhill Park Performing Arts College, the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Who turns up on the day
- The length of the guarantee
- How hidden problems are handled
- Is the old sealant removed completely?
