Oxfordshire · England
Sand mastic for sash & case windows in Redbridge, Oxfordshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Redbridge, with a one-year guarantee on every job. Ask us for a quote.
- Patchy fillers round a sash window
- Failed mastic on an exposed elevation
- Draughts and rain around sash boxes
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Plan mastic work ahead of painting
- Avoid patching sand mastic with silicone
- Ask us before painting near the mastic
- Look over the window mastic once a year
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
About our sand mastic in Redbridge
Traditional burnt sand mastic that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. If you are dealing with window mastic to renew ahead of painting and mastic dropping out of the joint, we can help.
Around Redbridge, 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.
Every job comes with a one-year guarantee, wherever you are in Oxfordshire.
- Where
- Redbridge (OX1, OX4)
- Region
- Oxfordshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. Somewhere as small as Redbridge, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Mention if the joints have been sealed before
- Let us know about parking restrictions
- Let us know about stairs, lifts or work at height
Get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.
Related advice
Do you need sand mastic in Redbridge?
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.
The most common problems we see are:
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
- Open joints round the window box
- Mastic round period door frames that has failed
Letting a property close to Oxford station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Questions to ask before you book
- What guarantee comes with the work
- How the surfaces are prepared before sealing
- What insurance they hold
- What the quote includes, VAT included or not
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Crumbling stone or brickwork round the window
- Sash cords, weights and draught-proofing of the sashes
- Whether work needs listed building consent
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
What we seal
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Tenement windows
- Timber door frames
- Brick reveals
DIY sealant or a professional job?
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Landlord and commercial work in Redbridge
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 businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Common questions in Redbridge
Do you work for landlords with property near Oxford station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Can you do sand mastic in Redbridge?
Yes, Redbridge is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
What guarantee comes with the work?
Our one-year guarantee covers every job, sand mastic included.
What is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Can you match the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Where do you work from?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we’ll talk you through it.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you will get one quote.
Frames and glazing around Redbridge
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Holywell Manor (about 1.9 miles north) are a reminder that the area around Redbridge 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 is traditional sand mastic.
If you look after a building such as New Hinksey Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s. For an older house near a landmark such as St Luke's Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
Redbridge is about 2 miles south-west of Oxford, in Oxfordshire. For sand mastic in and around Redbridge, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Oxfordshire from our Crawley base. Across Oxfordshire, we cover 443 places, and Redbridge is one of them.
Jobs for sand mastic in OX1 and OX4 is quoted and booked the same way as anywhere else. Whether your property is on Mill Lane, Upper Road and Betty Lane or anywhere close by, our applicators can take on the job. Neighbouring places we cover for sand mastic include New Hinksey (1 mile north), South Hinksey (1 mile west), Hinksey Hill (1 mile west), Donnington (1 mile north-east) and Iffley (1 mile east). We also work in nearby towns such as Didcot (8 miles south), Bicester (13 miles north), Abingdon-on-Thames (4 miles south), Witney (11 miles west), Carterton (15 miles west) and Thame (12 miles east).
Around Redbridge
Locally, jobs take us to homes and businesses close to Greyfriars Catholic School, The Isis Farmhouse pub and Alexander Library of Ornithology and the streets around them. Other local landmarks include South Park (1.7 miles north-east) and Emmanuel Christian School (1.2 miles south-east). The nearest railway station is Oxford station, about 1.9 miles north-west of the centre. Nearby you’ll also find Oxford Castle and earlier settlement remains (1.7 miles north) and Templars Square (1.4 miles east). Open spaces near Redbridge include CS Lewis Nature Reserve and Harcourt Hill.
Surface by surface
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.