West Berkshire · England
Ashmore Green Window Mastic
Professional window mastic in and around Ashmore Green, with old sealant always removed completely.
- Mastic that is falling out in pieces
- Mastic that has split away from the wall
- Gaps left after new windows were fitted
Window mastic in Ashmore Green
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 will tell you. Common call-outs are for mastic that has split away from the wall and rain getting in at the frame or under the sill, across composite doors, timber windows & doors and window sills.
Around Ashmore Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All our work comes with our one-year guarantee, wherever you are in West Berkshire.
- Location
- Ashmore Green (RG18)
- Wider area
- West Berkshire
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Frames and glazing around Ashmore Green
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Shaw House (about 2 miles west) nearby, there’s older building stock in the area around Ashmore Green as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you live in an older home near St. Mark's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Rented homes near Newbury Racecourse station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Ashmore Green is about 2 miles north-west of Thatcham, in West Berkshire. If you need window mastic in Ashmore Green, it’s easy to get a quote: please call 0345 464 0079 or drop us an email. We’re based in Crawley and cover West Berkshire, Ashmore Green included. Our West Berkshire coverage runs to 155 places, and Ashmore Green is one of them. You can also see our page for Reading, roughly 13 miles from Ashmore Green.
We work across the RG18 postcode area for window mastic. If you need window mastic at a property on Ash Terrace, Ashmore Green Road and Stoney Lane or a nearby road, we can help. Other places close to Ashmore Green include Cold Ash (1 mile north-east), Stone Copse (1 mile west), Benham Hill (1 mile south-west), Thatcham (2 miles south-east) and Longlane (2 miles north). We also work in nearby towns such as Newbury (3 miles south-west), Burghfield Common (9 miles east), Hungerford (11 miles west), Spencers Wood (13 miles east), Calcot (10 miles east) and Lambourn (12 miles north-west).
What’s near Ashmore Green
Typical jobs here are in homes near Kennet School. The closest station to Ashmore Green is Newbury Racecourse station, roughly 2.2 miles south-west. Other landmarks nearby include West Berkshire Community Hospital (1.4 miles south-west) and Donnington Castle (2.8 miles west). For a walk, there’s Nature Discovery Centre.
Towns and villages near Ashmore Green
More services for Ashmore Green
What the job involves on each surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the new bead is laid against the frame and the wall and tooled smooth.
How it works
When we arrive, we look over the joints with you first. Surfaces next to the work are protected before we start. Most jobs take a morning for a couple of windows and a door. For a village or hamlet like Ashmore Green, the journey is planned in advance: 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.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
Ask for a quote
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job.
Related advice
Signs you need window mastic in Ashmore Green
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
Common reasons people contact us include:
- Damp patches on the reveal after heavy rain
- Gaps between the frame and the inside reveal
- Rushed sealant from a window installation
- White mastic on grey or black frames
If you look after a building such as Cold Ash St Mark's C.E. School, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- What insurance they hold
- How much experience the applicator has
- How hidden problems are handled
- When the joint can take water or movement
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
FAQs for Ashmore Green
Is Ashmore Green in your area for window mastic?
Yes, Ashmore Green is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Ashmore Green?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we will quote it together.
How do I get a quote for window mastic in Ashmore Green?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.
Will new mastic stop draughts?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Is there any odour?
Possibly a little. It fades as the sealant cures.
Work for landlords, hotels and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
We also work for property managers and facilities teams. Several sites can go on one quote, and we’re fully insured for the work.
When it isn’t the sealant
Sealant isn’t the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- Worn gaskets, brush seals or a door that has dropped
- Soft or decayed wood in the frame
- Broken hinges, locks or handles
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
What we seal
- Patio & French doors
- uPVC windows
- Window sills
- Timber windows & doors
- Aluminium frames
- Composite doors
How we quote for window mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much there is to do
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- What’s wrong with the joints now
- Where the property is
- The rough size of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.