Oxfordshire · England
Sand mastic for sash & case windows in Bampton, Oxfordshire
Window and door surrounds in Bampton need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Failed mastic on an exposed elevation
- Modern sealant on a period surround
- Patchy fillers round a sash window
When something else is needed
A few problems are outside what sealant work can do:
- Sashes that rattle, stick or will not open
- Whether work needs listed building consent
- Masonry that needs repairing
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Brick reveals
- Stone surrounds
- Sash and case windows
- Tenement windows
- Timber door frames
- Period & listed homes
How we handle sand mastic in Bampton
We renew sand mastic around sash windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. We work on stone surrounds, tenement windows and sash and case windows, and common reasons people get in touch are window mastic to renew ahead of painting and old sand mastic that has cracked, crumbled or fallen out.
Homes around Bampton range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
All our work is covered by our one-year guarantee.
- Location
- Bampton (OX18)
- Region
- Oxfordshire
- Cover
- A year, on every job
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens if it’s left?
An open joint round the frame lets weather in. Left, water can reach the timber and the wall, so dealing with it now protects both. Around Bampton, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
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.
What you get with us
- Fully insured
- Domestic, commercial and hotel work
- Sanitary silicone with an anti-fungal additive in wet areas
- 4.9 on Google from 180+ five-star reviews
See how sealant jobs are priced and our reviews.
Towns and villages near Bampton
Other services in Bampton
Bampton: your questions answered
Is sand mastic in Bampton guaranteed?
All our work, in Bampton and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Is Bampton within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
What does sand mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or email us and tell us what needs doing and where.
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.
Is sand mastic better than silicone for my windows?
It depends on the window. On many period windows, sand mastic looks right and suits the building and newer frames generally get a flexible sealant.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Can you quote for more than one area?
Yes, we can. Several rooms, windows or areas can go on one quote.
Bampton homes and the weather
Historic houses like Longworth House (about 4.8 miles south-east) are a reminder that the area around Bampton has older buildings as well as new. 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.
Managing a site like Bampton CofE Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Bampton is about 3 miles south-east of Carterton, in Oxfordshire. Homes, rented property, offices and hotels in Bampton can book us for sand mastic. Every job comes with our 12-month guarantee. Bampton is one of 443 places in Oxfordshire where we work for sand mastic. You can also see our page for Oxford, about 13 miles away.
Postcode districts we cover here for sand mastic: OX18. You will find streets such as High Street, Station Road and The Pieces, and we cover them all. We also cover the places around Bampton: Weald (1 mile south-west), Aston (2 miles east), Black Bourton (2 miles west), Clanfield (2 miles south-west) and Brize Norton (3 miles north). Within a short drive, we also cover Oxford (13 miles east), Didcot (15 miles south-east), Abingdon-on-Thames (12 miles east), Witney (5 miles north-east), Carterton (3 miles north-west) and Wantage (11 miles south-east).
Landmarks near Bampton
We work in homes and buildings around The Morris Clows Public House and the streets around them. Other landmarks nearby include Longworth Hospital (5.1 miles south) and Bampton Castle (0.5 miles south-west).
How it works
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours for a single window, longer for several. Parking around Bampton is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
- On commercial sites, let us know about site rules
Get a quote
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Advice
Signs you need sand mastic in Bampton
Some old mastic was never deep enough. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.
Look out for these signs:
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
- Mastic round period door frames that has failed
- Draughty sash windows at the surround
For an older house near a landmark such as Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- How hidden problems are handled
- Who does the work, and how experienced they are
- What the quote includes, VAT included or not
- How long the guarantee is
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
- Take care around the mastic when scraping paint
- Keep modern sealant off the mastic
Don’t run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
Can I do it myself?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Landlords, agents and businesses in Bampton
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.