Kent · England
Window Mastic in Ulcombe
We cover Ulcombe for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
- Cracked internal joints between frame and plaster
Window mastic in Ulcombe: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Leeds Castle (about 2.5 miles north) are a reminder that the area around Ulcombe 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.
If you let a flat or house near Harrietsham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings such as Ulcombe Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Ulcombe is about 6 miles south-east of Maidstone, in Kent. If you need window mastic in Ulcombe, it’s easy to get a quote: please ring 0345 464 0079 or email us. We are based in Crawley and cover Kent, Ulcombe included. Our Kent coverage runs to 922 places, Ulcombe among them. For nearby work, see our London page (37 miles or so).
Postcode districts we cover here for window mastic: ME17. That includes homes and businesses on The Street and Chapmans Place and the roads around them. Close by, we work in Fairbourne Heath (1 mile north-east), Eastwood (1 mile south-east), Kingswood (1 mile north-west), Chartway Street (1 mile north-west) and Broadstone (1 mile south-east). Further out, we also cover Maidstone (6 miles north-west), Ashford (11 miles south-east), Sittingbourne (10 miles north-east), Faversham (13 miles north-east), Kings Hill (11 miles west) and Davington (13 miles north-east).
What’s near Ulcombe
Typical jobs here are in homes near The Harrow Public House and the streets around them. For rail, the closest station is Harrietsham station, about 2.5 miles north-east. Nearby you’ll also find Sutton Valence Castle (2 miles west) and The Dog Collar Museum (2.3 miles north).
About our window mastic in Ulcombe
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. We work on composite doors, uPVC windows and patio & French doors, and common reasons people get in touch are untidy mastic left by window fitters and cracked sealant at the sill ends.
In a village or hamlet like Ulcombe, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee.
- Location
- Ulcombe (ME17)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Nearby places to Ulcombe
Also in Ulcombe
The process
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. It normally takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Ulcombe, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
Get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Advice
How we quote for window mastic
Your quote is based on your job. We look at:
- Which sealant suits the joint
- How easy the joints are to reach
- The old material and how stubborn it is
- Mould in or behind the old joints
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Asking for a quote
You do not need to know the technical terms. Just tell us:
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
- The problem you’ve noticed
- Photos by email, if that’s easy
Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Check the mastic once a year
- Keep jet washers away from the mastic
- Ventilate rooms so frames don’t stay wet inside
- Clear any debris from frame drain holes
Try not to touch the new joint while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Ulcombe questions
Can you do window mastic in Ulcombe?
Yes, Ulcombe is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Can you help a landlord with a rental near Harrietsham station?
Yes, we work for letting agents and landlords. 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.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Is the new sealant paintable?
Not generally, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
How long should I leave it?
It depends on the product. We tell you how long to leave it before we go.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Do you take out the old sealant first?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Surface by surface
Aluminium frames
Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Landlords, agents and businesses in Ulcombe
We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for before the next move-in.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Common problems we fix in Ulcombe
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, so it comes away long before its time.
Common reasons people contact us are:
- Cracked internal joints between frame and plaster
- Rain getting in at the frame or under the sill
- Old mastic that has gone black or come away
- Cold air getting in at the frame edge
In the older streets around All Saints Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before you book
- What the quote includes, VAT included or not
- Whether you can choose the colour
- How long the guarantee is
- What preparation is included