West Berkshire · England
Sand mastic for sash & case windows in Mortimer West End, West Berkshire
Sand mastic for Mortimer West End and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Open joints round the window box
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
How the job changes by surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Stone surrounds
Old stone surrounds are often uneven, so the gap isn’t the same all the way round. Sand mastic is shaped by hand to suit.
Sand mastic for homes and businesses in Mortimer West End
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. We work on period & listed homes, timber door frames and tenement windows, and common reasons people get in touch are gaps round a timber door in stone or brick and gaps between timber frames and stone or brick.
Mastic can only go onto a dry, clean joint, so window work in Mortimer West End is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
You get a 12-month guarantee, the same in Mortimer West End as everywhere else we work.
- Place
- Mortimer West End (RG7)
- Wider area
- West Berkshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a single window, longer for several, including the tidy-up. Somewhere like Mortimer West End needs a little journey planning: 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.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
How to prepare
- Tell us if parking is tricky
- For business premises, tell us about site rules or sign-in
- Plan for the work area to be out of bounds to pets and children
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Related advice
Do you need sand mastic in Mortimer West End?
Most of it is simply age. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
The most common problems we see are:
- Wind and rain getting in round a sash window
- Silicone on a period window that looks wrong
- Failed mastic on an exposed elevation
- Old cement repairs round a window that have failed
Schools such as Silchester Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- What the quote includes, VAT included or not
- Who turns up on the day
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
Questions from Mortimer West End
Is Mortimer West End in your area for sand mastic?
Yes. Our work covers London and the South East, and Mortimer West End is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Do you cover smaller places like Mortimer West End?
Yes, Mortimer West End 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.
What do you put in the joint?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.
Can tenants book the work?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Can landlords and businesses book you?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
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.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
What sealant work cannot fix
Before you book, it’s worth knowing the limits:
- Decayed frames that need repair
- Crumbling stone or brickwork round the window
- Sashes that need overhauling
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
Where we work in Mortimer West End
- Period & listed homes
- Tenement windows
- Brick reveals
- Timber door frames
- Stone surrounds
- Sash and case windows
Why it’s worth doing now in Mortimer West End
An open joint round the frame lets weather in. Water can get to the frame and the masonry, so dealing with it now protects both. Where a wall is exposed, as many are in small places like Mortimer West End, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why Mortimer West End customers choose us
- 180+ five-star Google reviews
- Any old sealant cut out fully, not covered over
- A 12-month guarantee on all work
- ARBOMaster approved applicator
See our cost guide or customer reviews.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Make sure water runs off the sill
- Ask the planning authority about consent for listed or conservation-area homes
- Avoid heavy scraping on the mastic joint
- Don’t paint over the new mastic
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
Sand mastic in Mortimer West End: local notes
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Stratfield Saye House (about 4.3 miles east) are a reminder that the area around Mortimer West End 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.
For landlords with property near Mortimer station, cracked sand mastic around sash windows lets in the draughts tenants complain about. For an older house near a landmark such as The Parish Church of St.Saviours, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Mortimer West End is about 2 miles north-east of Tadley, in West Berkshire. Mortimer West End gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Mortimer West End is one of 155 places in West Berkshire where we work for sand mastic. For nearby work, see our Reading page, about 7 miles away.
Postcode districts we cover here for sand mastic: RG7. That includes homes and businesses on Church Road, Back Lane and Chapel Road and the roads around them. If you’re just outside Mortimer West End, we cover Mortimer (1 mile north-east), Three Ashes (2 miles south), Stratfield Mortimer (2 miles east), Burghfield Common (2 miles north-east) and West End Green (3 miles south-east). Larger places within reach include Newbury (10 miles west), Thatcham (8 miles west), Speenhamland (10 miles west), Spencers Wood (6 miles east), Calcot (5 miles north) and Shaw (10 miles west).
Near you in Mortimer West End
Typical jobs here are in homes near Padworth Common Local Nature Reserve, The Red Lion Public House and The Willink School, among other places. The closest station to Mortimer West End is Mortimer station, roughly 2.4 miles east. Well-known places in the area include Calleva Museum (1.1 miles south) and Beaumys Castle (4.8 miles east). Not far away are Hosehill Lake.