Oxfordshire · England
Sand mastic for sash & case windows in Aston, Oxfordshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Aston, with a one-year guarantee on every job. Ask us for a quote.
- Mastic round period door frames that has failed
- Window mastic to renew ahead of painting
- Mastic dropping out of the joint
Sand mastic in Aston
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. If you’re dealing with mastic round period door frames that has failed and window mastic to renew ahead of painting, we can help.
Around Aston, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Aston (RG9)
- Region
- Oxfordshire
- Guarantee
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Aftercare tips
A little care helps the new joints last. We recommend:
- Don’t paint over the new mastic
- Inspect the joints round the windows every year or so
- Sort the mastic before the decorators arrive
- Take care around the mastic when scraping paint
When preparing windows for paint, take care around the mastic. It can be damaged by heavy scraping.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
What happens on the day
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes a few hours for a single window, longer for several in most cases. Somewhere like Aston needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Move anything stored near the joints
- Tell us about access, such as stairs, a lift or high-level joints
- Keep pets and children clear of the area while we work
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
Advice
Why it’s worth doing now in Aston
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. Where a wall is exposed, as many are in small places like Aston, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
Why Aston clients choose us
- 12-month guarantee on every job
- Tidy, careful work
- Any old sealant cut out fully, not covered over
- Full insurance on every job
Quotes for sand mastic in Aston
For a quick quote, just ask. What matters most is:
- How many rooms, windows or areas are involved
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- Photos by email, if that’s easy
- Any previous sealing or DIY work
- The rough size of the job
- What’s wrong with the joints now
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
When it is not the sealant
We’ll always be straight with you, so here’s what sealant can’t fix:
- Sashes that rattle, stick or won’t open
- Damaged stone surrounds
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Stone surrounds
- Brick reveals
- Tenement windows
- Sash and case windows
- Period & listed homes
- Timber door frames
What the job involves on each surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Aston homes and the weather
With historic houses such as Greenlands (about 1 mile north-west) nearby, there’s older building stock in the area around Aston 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. 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.
Letting a property close to Henley-On-Thames station? Then any sash windows need sound mastic to keep draughts and rain out. In the older streets around Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Aston is about 2 miles north-east of Henley-on-Thames, in Oxfordshire. Aston gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Oxfordshire, we cover 443 places, Aston among them. For nearby work, see our Reading page, about 8 miles away.
Jobs for sand mastic in RG9 works the same way as everywhere else we cover. We cover properties on Remenham Lane and Aston Ferry Lane and the roads around them. Close by, we work in Mill End (1 mile north), Remenham Hill (1 mile south), Remenham (1 mile west), Medmenham (1 mile east) and Bockmer End (2 miles east). Larger places within reach include Thame (14 miles north), Benson (11 miles north-west), Chinnor (10 miles north), Tilehurst (9 miles south-west), Wallingford (12 miles west) and Little Heath (10 miles south-west).
Local landmarks in Aston
Typical jobs here are in homes near Flower Pot Hotel and Fawley Court and Temple Island and the streets around them. The closest station to Aston is Henley-On-Thames station, roughly 1.7 miles south-west of the centre. Other landmarks nearby include Marlow Community Hospital (4.6 miles east) and Frazer Nash Archives (1.9 miles south-west). Open spaces near Aston include Weycock Hill and Hurley Chalk Pit.
Nearby places to Aston
What else we do in Aston
Aston questions
I let a flat near Henley-On-Thames station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear quote.
Can you do sand mastic in Aston?
Yes, Aston is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
How much does sand mastic cost in Aston?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
How long will you be here?
Most jobs take a few hours per window, depending on the condition of the joints, including preparation and clearing up. Your quote will say how long we expect yours to take.
How long does sand mastic take to harden?
A skin forms quite soon, but full hardening takes longer. We’ll tell you what to expect for your job.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.