Oxfordshire · England
South Stoke Sand Mastic
Professional sand mastic in and around South Stoke, with old sealant always removed completely and a one-year guarantee.
- Gaps where the frame meets the masonry
- Failed mastic on an exposed elevation
- Patchy fillers round a sash window
How we handle sand mastic in South Stoke
Silicone on a period window often looks wrong and doesn’t suit the building. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you’re dealing with a silicone bead on a sash window that spoils the look and failed mastic on an exposed elevation, we can put it right, whatever the surface.
In a village or hamlet like South Stoke, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Each job carries a 12-month guarantee, large or small.
- Where
- South Stoke (RG8)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
We won’t take on work that won’t last, so these are the limits:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
If you’re not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Where we work in South Stoke
- Timber door frames
- Tenement windows
- Period & listed homes
- Sash and case windows
- Brick reveals
- Stone surrounds
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
How we quote for sand mastic
You’ll get a clear quote before work begins. It takes into account:
- How many areas need sealing
- The size of the job
- Mould in or behind the old joints
- The old material and how stubborn it is
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What we need to know
To make quoting easier, let us know:
- How we’d reach the joints
- What’s wrong with the joints now
- Where the property is
- If it’s domestic, commercial or a hotel
For sand mastic in South Stoke, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before work begins.
Sand mastic in South Stoke: 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 Basildon Park (about 3.5 miles south) are a reminder that the area around South Stoke 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.
Schools such as South Stoke Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Homes close to Church of St Andrew include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Cholsey station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
South Stoke is about 6 miles south-east of Didcot, in Oxfordshire. South Stoke gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. South Stoke is one of 443 places in Oxfordshire where we work. For nearby work, see our Reading page (10 miles or so).
Jobs for sand mastic in RG8 is quoted and booked the same way as anywhere else. We cover properties on The Street, Ferry Road and Cross Keys Road. We also cover the places around South Stoke: Moulsford (1 mile west), Goring (2 miles south), North Stoke (2 miles north-east), Cholsey (2 miles north) and Streatley (2 miles south). Further out, we also cover Oxford (15 miles north), Didcot (6 miles north-west), Abingdon-on-Thames (11 miles north-west), Thame (15 miles north-east), Wantage (13 miles west) and Henley-on-Thames (10 miles east).
Local landmarks in South Stoke
Locally, jobs take us to homes and businesses close to The Perch and Pike pub and Cranford House School and the streets around them. The nearest railway station is Cholsey station, roughly 1.8 miles north-west. A little further out are Wallingford Castle (3.8 miles north). Green spaces nearby include Churn Hill and Withymead Nature Reserve.
Looking after it afterwards
Looking after new joints is easy:
- Ask the planning authority about consent for listed or conservation-area homes
- Avoid patching sand mastic with silicone
- Have rotten timber repaired before new mastic goes in
- Take care around the mastic when scraping paint
Do not run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger.
Why it’s worth doing now in South Stoke
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. Older cottages and farmhouses around South Stoke can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Why South Stoke customers choose us
- 20+ years of sealant experience
- Arbo and Everbuild products
- One-year guarantee on every job
- Anti-fungal silicone where joints get wet
How the visit works
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours per window, depending on the condition of the joints. In a small place like South Stoke, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- 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
- Mention any tricky access
- Keep pets and children clear of the area while we work
- Try not to wet indoor joints just before the visit
How to get a quote
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Related advice
Other services in South Stoke
South Stoke: your questions answered
Do you cover smaller places like South Stoke?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you do sand mastic in South Stoke?
Yes, South Stoke is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
Do you take out the old sealant first?
Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.
How long does the job take?
Most jobs take a few hours for a single window, longer for several, including preparation and clearing up. Your quote will say how long we expect yours to take.
Are you fully insured?
Yes, we’re fully insured for every job we do.
Can you replace silicone on a period window with sand mastic?
Often, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. The weather and joint depth both affect it.
Do you guarantee sand mastic work?
Every job comes with our 12-month guarantee.
DIY sealant or a professional job?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.