Oxfordshire · England
Sand mastic for sash & case windows in Moreton, Oxfordshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Moreton, with a one-year guarantee on every job. Ask us for a quote.
- A silicone bead on a sash window that spoils the look
- Mastic that needs renewing before redecorating
- Gaps round a timber door in stone or brick
About our sand mastic in Moreton
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. We work on stone surrounds, tenement windows and brick reveals, and common reasons people get in touch are patchy fillers round a sash window and open joints round the window box.
Somewhere as small as Moreton, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Moreton (OX9)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Keeping the joints in good condition
After the cure time, these simple habits help:
- Go gently near the mastic when preparing windows
- Leave the new mastic unpainted
- Get any rot dealt with first
- Renew mastic before redecorating the windows
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
Frames and glazing around Moreton
Historic houses like Adwell House (about 3.3 miles south) are a reminder that the area around Moreton has older buildings as well as new. 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St Mary include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. Rented homes near Haddenham & Thame Parkway station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Lord Williams's School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Moreton is about 1 mile south-west of Thame, in Oxfordshire. Every kind of property in Moreton is covered for sand mastic. Every job comes with our 12-month guarantee. Our Oxfordshire coverage runs to 443 places, and Moreton is one of them. Oxford is on our list too, around 10 miles away.
Our applicators cover all of the OX9 postcode area for sand mastic and the streets around it. Neighbouring places we cover for sand mastic include Thame (1 mile north-east), Towersey (2 miles east), Long Crendon (3 miles north), Sydenham (3 miles south-east) and Emmington (3 miles south-east). Further out, we also cover Oxford (10 miles west), Didcot (14 miles south-west), Bicester (13 miles north-west), Abingdon-on-Thames (13 miles west), Henley-on-Thames (15 miles south) and Kidlington (14 miles north-west).
Local landmarks in Moreton
Around Moreton, our work takes us to homes and buildings near St Joseph's Catholic Primary School and The Old Plough House and the streets around them. The nearest railway station is Haddenham & Thame Parkway station, about 3.2 miles north-east. A little further out are Thame Community Hospital (1.2 miles east) and Thame Museum (0.9 miles north-east). Green spaces nearby include Snakemoor.
Why act early in Moreton
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic will not stop the gaps and traditional guidance is to leave the new mastic unpainted. Around Moreton, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- Any old sealant cut out fully, not covered over
- Trusted Arbo and Everbuild sealants
- Anti-fungal silicone where joints get wet
- Neat joints and a tidy finish
What happens on the day
We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. In a small place like Moreton, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
- Keep children and pets away from the work area
How to get a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved and send you a clear quote.
Advice
Quotes for sand mastic in Moreton
You’ll get a clear quote before work begins. It takes into account:
- The size of the job
- The product the joint needs
- When we can work, for business premises
- How many rooms, windows or areas are involved
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or email us and we will talk you through it.
What we need to know
You do not need to know the technical terms. It helps if you can tell us:
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- The type of property
- The problem you’ve noticed
Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or drop us an email with the details and send photos if you have them.
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
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. Everything old must be removed first.
What the job involves on each surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Brick reveals
Gaps between frame and brick let in rain and draughts. New mastic seals the gap.
Towns and villages near Moreton
Also in Moreton
Landlord and commercial work in Moreton
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
For anyone letting property in or around Moreton, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
Common questions in Moreton
I let a flat near Haddenham & Thame Parkway station. Can you help?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Is Moreton in your area for sand mastic?
Yes, Moreton is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Can you seal over the old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Do you have insurance?
Yes. We’re fully insured.
What guarantee comes with the work?
All our work has a one-year guarantee, and we’re fully insured.
How long does sand mastic take to harden?
Not straight away. The skin forms first, and the full set comes later and we’ll give you an idea for your job.
Do I need permission for sand mastic on a listed building?
Yes, it’s worth checking. Your local planning authority can say if consent is needed for listed or conservation-area properties.
How much does sand mastic cost in Moreton?
Size, access and the old material all affect the cost. Ask us for a quote.