West Berkshire · England
Stratfield Saye Sand Mastic
Our applicators work in Stratfield Saye on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Window mastic to renew ahead of painting
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
About our sand mastic in Stratfield Saye
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder and built up by hand. On period homes, it looks right where silicone wouldn’t. We work on stone surrounds, tenement windows and sash and case windows, and the jobs we see most are silicone on a period window that looks wrong and patchy fillers round a sash window.
Around Stratfield Saye, 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.
Our work is backed for twelve months, in Stratfield Saye and everywhere else we cover.
- Location
- Stratfield Saye (RG7)
- Wider area
- West Berkshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Also near Stratfield Saye
What else we do in Stratfield Saye
Surface by surface
Timber door frames
Door frames get knocked and soaked, so their mastic can fail sooner. We rake it out and renew it.
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Why act early in Stratfield Saye
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Older cottages and farmhouses around Stratfield Saye can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email and we will talk you through it.
Why us?
- We never seal over old sealant
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
Read what affects the cost or what customers say.
Your questions about sand mastic in Stratfield Saye
Do you work for landlords with property near Mortimer station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Is Stratfield Saye in your area for sand mastic?
Yes. Our work covers London and the South East, and Stratfield Saye is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we’re using and why.
Is the work guaranteed?
You get our one-year guarantee to all our work.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Is it possible to take out silicone and use sand mastic instead?
In most cases. The silicone is cut out and the joint cleaned before the sand mastic goes in.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
What affects the quote in Stratfield Saye
You will get a clear quote before any work starts. It takes into account:
- Any working-time requirements on site
- The type of sealant required
- How much old sealant there is and how hard it is to remove
- The size of the job
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Helping us quote
To help us quote quickly, let us know:
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- The rough size of the job
- The address or postcode of the job
We do not publish a price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
How the visit works
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. For a village or hamlet like Stratfield Saye, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details and send pictures if you have them.
Advice
Stratfield Saye homes and the weather
Historic houses like Stratfield Saye House (about 1.1 miles east) are a reminder that the area around Stratfield Saye has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
In the older streets around Church of St. Mary the Virgin, the joint between an old wall and a newer frame is normally the first place rain gets in. If you let a flat or house near Mortimer station, any sash windows need sound mastic to keep draughts and rain out.
Stratfield Saye is about 5 miles east of Tadley, in West Berkshire. Across the RG7 area, we can carry out sand mastic at your property. Stratfield Saye is one of 155 places in West Berkshire we cover. We also work in Reading, about 7 miles from Stratfield Saye.
Postcode districts we cover here for sand mastic: RG7. Whether your property is on Green Lane, Fair Oak Lane and New Street or anywhere close by, we can help. Neighbouring places we cover for sand mastic include West End Green (1 mile west), Fair Cross (1 mile north-east), Spanish Green (2 miles south), Stratfield Mortimer (2 miles north-west) and Bramley Green (2 miles south-west). We also work in nearby towns such as Newbury (13 miles west), Thatcham (11 miles west), Burghfield Common (4 miles north-west), Speenhamland (14 miles west), Spencers Wood (4 miles north-east) and Calcot (6 miles north).
Near you in Stratfield Saye
For rail, the closest station is Mortimer station, roughly 1.6 miles north-west of the centre. Other landmarks nearby include Calleva Museum (3.3 miles west) and Beaumys Castle (2.4 miles north-east). Open spaces near Stratfield Saye include The Marshes Local Nature Reserve.
For landlords and businesses
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote, and we are fully insured.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Sashes that rattle, stick or will not open
- Timber that has rotted
- Putty and glazing repairs
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly before booking.
What we seal
- Timber door frames
- Period & listed homes
- Tenement windows
- Sash and case windows
- Brick reveals
- Stone surrounds