Oxfordshire · England
Sand mastic for sash & case windows in Hailey, Oxfordshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Hailey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between timber frames and stone or brick
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
Signs you need sand mastic in Hailey
Over the years, sand mastic weathers. It dries out, cracks and loses its grip on the stone or timber.
Common reasons people contact us are:
- Mastic dropping out of the joint
- Modern sealant on a period surround
- Patchy fillers round a sash window
- Draughty sash windows at the surround
If you live in an older home near Church of St John the Evangelist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before booking anyone
- What insurance they hold
- Whether VAT is included
- How long to leave it before use
- How the surfaces are prepared before sealing
Sand mastic in Hailey
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 older homes, it suits the building far better than silicone. We work on sash and case windows, timber door frames and stone surrounds, and the jobs we see most are mastic worn away on windows facing the weather and crumbling sand mastic round a window.
Outdoor sealant needs dry, clean surfaces, so work on frames around Hailey is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Each job carries a 12-month guarantee.
- Place
- Hailey (OX29)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
What sand mastic looks like in Hailey
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Minster Lovell Hall (about 1.9 miles south-west) nearby, there’s older building stock in the area around Hailey as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Managing a site like Hailey Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Finstock station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Hailey is about 2 miles north of Witney, in Oxfordshire. Across the OX29 area, we cover sand mastic for homes and businesses. Our area takes in 443 places across Oxfordshire, large and small. You can also see our page for Oxford, about 12 miles away.
Postcode districts we cover here for sand mastic: OX29. If you need sand mastic at a property on Fishers Close, Hicks Close and Giernalls Road or a nearby road, our applicators can take on the job. We also cover the places around Hailey: Delly End (1 mile north-east), Poffley End (1 mile south-east), New Yatt (2 miles east), Ramsden (2 miles north) and North Leigh (2 miles east). Further out, we also cover Oxford (12 miles east), Abingdon-on-Thames (13 miles south-east), Carterton (5 miles south-west), Grove (14 miles south), Faringdon (12 miles south) and Kidlington (9 miles east).
Near you in Hailey
Typical jobs here are in homes near The Lamb And Flag Public House, Wood Green School and The King's School and the streets around them. The nearest railway station is Finstock station, about 2.9 miles north of the centre. A little further out are Cogges Manor Farm Museum (2.1 miles south). The countryside around Hailey includes Blenheim Farm.
Also near Hailey
What else we do in Hailey
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Sash cords, weights and draught-proofing of the sashes
- Cracked or broken glass
- Masonry that needs repairing
If you’re not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Sash and case windows
- Period & listed homes
- Tenement windows
- Timber door frames
- Brick reveals
- Stone surrounds
Looking after it afterwards
After the cure time, these simple habits help:
- Avoid heavy scraping on the mastic joint
- Keep modern sealant off the mastic
- Get any rot dealt with first
- Ask the planning authority about consent for listed or conservation-area homes
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
For landlords and businesses
For anyone letting property in or around Hailey, several properties can go on one quote. Send us the addresses and the work at each.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured for the work.
How the visit works
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. After that, the work takes a few hours for a single window, longer for several. In a small place like Hailey, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved.
Read more
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
Leave it or put it right?
Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry, so dealing with it now protects both. Older cottages and farmhouses around Hailey can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why Hailey clients choose us
- We leave the area clean and tidy
- Anti-fungal sanitary silicone in wet areas
- Domestic, commercial and hotel work
- 20+ years of sealant experience
Read our cost guide and customer reviews.
Your questions about sand mastic in Hailey
Do you cover smaller places like Hailey?
Yes. Hailey is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
I let a flat near Finstock station. Can you help?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before any work starts.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Can you match the sealant colour?
Most of the time, yes. We’ll explain which colours are available and agree one before work begins.
Do I have to be there?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Your local planning authority can say if consent is needed for work on a listed home or in a conservation area.
Where do you work from?
Mr Mastic is based in Crawley. We cover Hailey and the rest of Oxfordshire, along with the rest of our area.
Can you seal over the old sealant?
No. The old sealant always comes out first.