Oxfordshire · England
Sand Mastic in Boars Hill
We cover Boars Hill for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Mastic worn away on windows facing the weather
- Old cement repairs round a window that have failed
- Tired mastic found when preparing windows for paint
Sand mastic for homes and businesses in Boars Hill
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditional guidance is not to paint over it, so ask us before you decorate. We work on sash and case windows, period & listed homes and stone surrounds, and people most often call us about draughts and rain around sash boxes and gaps round a timber door in stone or brick.
In a village or hamlet like Boars Hill, 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.
Our work is backed for twelve months.
- Where
- Boars Hill (OX1)
- Wider area
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Towns and villages near Boars Hill
Also in Boars Hill
Frames and glazing around Boars Hill
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Appleton Manor (about 2.9 miles west) are a reminder that the area around Boars Hill 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 let a flat or house near Oxford station, cracked sand mastic around sash windows lets in the draughts tenants complain about. For site and facilities teams at buildings such as Wootton St Peter's Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Peter, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Boars Hill is about 3 miles north of Abingdon-on-Thames, in Oxfordshire. Anywhere in OX1, our applicators can take on sand mastic. Our Oxfordshire coverage runs to 443 places, and Boars Hill is one of them.
Here we cover the OX1 postcode area for sand mastic. Local streets include Berkeley Road, Jarn Way and Bedwells Heath, all of which we cover. Close by, we work in Bayworth (1 mile south-east), Chilswell (1 mile north), Sunningwell (1 mile south), Hinksey Hill (1 mile north-east) and Harcourt Hill (2 miles north). We also work in nearby towns such as Oxford (4 miles north-east), Didcot (8 miles south), Bicester (14 miles north-east), Abingdon-on-Thames (3 miles south), Witney (10 miles north-west) and Carterton (13 miles west).
Landmarks near Boars Hill
We work in homes and buildings around Raleigh Park, The Fox pub and Matthew Arnold School. The nearest railway station is Oxford station, roughly 2.8 miles north of the centre. A little further out are The Story Museum (2.8 miles north-east) and Westgate Shopping Centre (2.8 miles north-east). Green spaces nearby include Lashford Lane Fen and Harcourt Hill.
Why act early in Boars Hill
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Older cottages and farmhouses around Boars Hill can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why book with us
- We’re fully insured
- Anti-fungal silicone where joints get wet
- We leave the area clean and tidy
- ARBOMaster approved applicator
Take a look at what affects the cost or our reviews.
Your questions about sand mastic in Boars Hill
Do you cover Boars Hill for sand mastic?
Yes. We work across London and the South East, and Boars Hill 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.
Is Boars Hill within the area you cover?
Yes, Boars Hill is covered. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I rent my home. Can I book you?
Of course. Ask your landlord first, and we can send them the quote if that helps.
Should I use sand mastic or silicone?
It depends on the window. Period windows in stone or brick normally suit sand mastic, while modern frames normally get a flexible sealant.
Can I choose the sealant colour?
Yes. White, clear and grey are common, and other colours are available, and we will agree it with you first.
How much does sand mastic cost in Boars Hill?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can new sealant go over the old?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a single window, longer for several, and the area is left clean. In a small place like Boars Hill, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
- Keep children and pets away from the work area
Getting a quote
Need a quote? Please call 0345 464 0079 or drop us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Related advice
What affects the cost of sand mastic
Jobs vary more than people expect. What affects the quote:
- Working hours on commercial sites
- Any mould that needs treating
- The old material and how stubborn it is
- The size of the job
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Photos by email, if that is easy
- The type of property
- The rough size of the job
- How we’d reach the joints
For a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear quote before any work starts.
Landlord and commercial work in Boars Hill
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
What we cannot put right
New sealant cannot fix everything, and we will tell you before work begins. It will not solve:
- Damaged stone surrounds
- Cracked or broken glass
- Sash cords, weights and draught-proofing of the sashes
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
What we seal
- Tenement windows
- Sash and case windows
- Brick reveals
- Period & listed homes
- Timber door frames
- Stone surrounds
What the job involves on each surface
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is normally favoured.