Oxfordshire · England
Sand mastic for sash & case windows in East Hagbourne, Oxfordshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in East Hagbourne. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Cement or filler used on old window joints that has cracked
- Modern sealant on a period surround
About our sand mastic in East Hagbourne
Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditional guidance is not to paint over it, so ask us before you decorate. If you have old cement repairs round a window that have failed and mastic dropping out of the joint, we can put it right.
Somewhere as small as East Hagbourne, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Your job is guaranteed for a year, as with all our work.

- Where
- East Hagbourne (OX11)
- Region
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Clear gutters so water does not pour onto the windows
- Ask the planning authority about consent for listed or conservation-area homes
- Ask us before painting near the mastic
- Take care around the mastic when scraping paint
Avoid painting over the new mastic, which is the traditional advice. If you’re redecorating, ask us first.
It’s best to renew mastic before painting the windows. Painting over failed mastic hides the problem for a while.
How the job changes by surface
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Towns and villages near East Hagbourne
Also in East Hagbourne
Quotes for sand mastic in East Hagbourne
We do not publish a price list, because jobs vary so much. What we look at:
- The size of the job
- Whether the work is at height
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and give you a clear price before work begins.
Asking for a quote
You don’t need to know the technical terms. Just tell us:
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- How we’d reach the joints
- The problem you’ve noticed
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or send us an email.
FAQs for East Hagbourne
Will you come out to East Hagbourne?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Didcot Parkway station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or email us with the details for a clear quote.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
Is there any odour?
Possibly a little. Any smell clears as the sealant cures.
What information do you need?
The location, the problem and the rough size of the job. If you can, email a few photos.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new sealant bonds properly.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
Where do you work from?
Mr Mastic is based in Crawley. We cover East Hagbourne and the rest of Oxfordshire, along with the rest of our area.
What we are called out for in East Hagbourne
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.
Keep an eye out for any of the following:
- Modern sealant on a period surround
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
- Draughty sash windows at the surround
For site and facilities teams at buildings such as Hagbourne Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- Who turns up on the day
- What happens if the job turns out different
- What the quote includes, VAT included or not
- Whether you can choose the colour
What happens if it’s left?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like East Hagbourne, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or email us for an honest opinion and a quote.
Why us?
- More than 20 years in sealant work
- Every job guaranteed for a year
- Homes, businesses and hotels
- ARBOMaster approved applicator
See how sealant jobs are priced and our reviews.
What we do, step by step
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere like East Hagbourne needs a little journey planning: 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.
- 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.
- We finish the mastic to a tidy line.
How to prepare
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- Mention any parking rules near the property
How to get a quote
For sand mastic in East Hagbourne, ring 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
What sealant work can’t fix
We won’t take on work that will not last, so these are the limits:
- Masonry that needs repairing
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Stone surrounds
- Timber door frames
- Tenement windows
- Brick reveals
- Period & listed homes
- Sash and case windows
Sand mastic in East Hagbourne: local notes
With historic houses such as Brightwell Manor (about 3.5 miles north-east) nearby, there’s older building stock in the area around East Hagbourne as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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 Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Letting a property close to Didcot Parkway station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
East Hagbourne is about 1 mile south of Didcot, in Oxfordshire. East Hagbourne gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. East Hagbourne is one of 443 places in Oxfordshire we cover for sand mastic. Oxford is on our list too, around 11 miles away.
Postcode districts we cover here for sand mastic: OX11. That includes homes and businesses on North Croft, The Croft and Wilcher Close and the roads around them. If you’re just outside East Hagbourne, we cover Coscote (1 mile west), West Hagbourne (1 mile south-west), Upton (1 mile south-west), Blewbury (2 miles south) and Harwell (2 miles west). We also work in nearby towns such as Oxford (11 miles north), Abingdon-on-Thames (6 miles north), Wantage (8 miles west), Henley-on-Thames (15 miles east), Grove (8 miles west) and Faringdon (15 miles west).
Landmarks near East Hagbourne
Typical jobs here are in homes near Fleur De Lys Public House and St Birinus School. East Hagbourne’s nearest station is Didcot Parkway station, about 1.3 miles north. A little further out are Brightwell Castle (3.5 miles north-east) and Abingdon Community Hospital (6 miles north-west). For a walk, there’s Mowbray Fields and Churn Hill.
