Oxfordshire · England
Sand mastic for sash & case windows in Aston Rowant, Oxfordshire
Sand mastic across Aston Rowant and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Crumbling sand mastic round a window
- Open joints round the window box
What sealant work can’t fix
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Crumbling stone or brickwork round the window
- Planning or listed building consent (your local planning authority decides)
- Putty and glazing repairs
If in doubt, ring 0345 464 0079 or email us and we will say what we think before booking.
What we seal
- Tenement windows
- Sash and case windows
- Brick reveals
- Timber door frames
- Stone surrounds
- Period & listed homes
How we handle sand mastic in Aston Rowant
We work across Aston Rowant renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you are dealing with silicone on a period window that looks wrong and mastic dropping out of the joint, we can help, whatever the surface.
Homes in small places like Aston Rowant often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Whatever the size of the job, you get the same one-year guarantee.
- Place
- Aston Rowant (OX49)
- Wider area
- Oxfordshire
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Aston Rowant
Also in Aston Rowant
How it works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The work itself takes a few hours for a single window, longer for several. For a village or hamlet like Aston Rowant, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Move anything stored near the joints
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.
Advice
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
We also work for property managers and facilities teams. Several sites can go on one quote, and we are fully insured for the work.
Why deal with it now?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. Older cottages and farmhouses around Aston Rowant can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Why book with us
- Neat joints and a tidy finish
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- Full insurance on every job
See what affects the cost and our reviews.
Aston Rowant questions
Is there a guarantee on sand mastic in Aston Rowant?
Every job comes with our 12-month guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
Do you cover Aston Rowant for sand mastic?
Yes, Aston Rowant is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can I add another job to the visit?
Yes. Just list everything you need and we will quote it together.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
Can you work on commercial sites?
Yes. We have worked for hotels, offices and other businesses, and we are fully insured.
Aston Rowant homes and the weather
With historic houses such as Adwell House (about 2 miles west) nearby, there’s older building stock in the area around Aston Rowant as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
For site and facilities teams at buildings such as Aston Rowant Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Aston Rowant is about 4 miles south of Thame, in Oxfordshire. Whether you are in the middle of Aston Rowant or further out, sand mastic is available for homes and businesses alike. Across Oxfordshire, we cover 443 places, and Aston Rowant is one of them. For nearby work, see our Oxford page, about 13 miles away.
Work in OX49 is quoted and booked the same way as anywhere else. Sand mastic is available to properties on London Road, Aston Park and Aston Rowant Road and the roads around them. Other places close to Aston Rowant include Kingston Blount (1 mile north-east), Crowell (1 mile north-east), Lewknor (1 mile south-west), Postcombe (1 mile west) and South Weston (2 miles west). Further out, we also cover Oxford (13 miles west), Didcot (14 miles west), Abingdon-on-Thames (14 miles west), Thame (4 miles north), Henley-on-Thames (11 miles south) and Benson (8 miles south-west).
Around Aston Rowant
In Aston Rowant, that means homes and buildings near The Lambert Arms. Well-known places in the area include Thame Community Hospital (4.3 miles north). Green spaces nearby include Aston Rowant NNR and Bald Hill.
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Renew mastic before redecorating the windows
- Ask the planning authority about consent for listed or conservation-area homes
- Get any rot dealt with first
- Look over the window mastic once a year
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
Signs you need sand mastic in Aston Rowant
Decorating can disturb tired mastic. Many people find it crumbling when they prepare the windows.
The problems people usually mention when they call are:
- A silicone bead on a sash window that spoils the look
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
- Window mastic to renew ahead of painting
If you live in an older home near Church of St Peter and St Paul, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Who turns up on the day
- How the surfaces are prepared before sealing
- The length of the guarantee
- Whether they seal over old material or remove it
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.