Oxfordshire · England
Sand Mastic in North Moreton
Window and door surrounds in North Moreton need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Old sand mastic that has cracked, crumbled or fallen out
- Gaps between timber frames and stone or brick
- Silicone on a period window that looks wrong
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
About our sand mastic in North Moreton
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We are often asked to deal with silicone on a period window that looks wrong and draughty sash windows at the surround, on timber door frames, sash and case windows and period & listed homes.
Somewhere as small as North Moreton, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Big or small, it’s backed by our one-year guarantee in North Moreton and across Oxfordshire.
- Location
- North Moreton (OX11)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Housing providers, facilities teams and property managers book us too in North Moreton and across Oxfordshire. We can quote a run of properties together.
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Ask us before painting near the mastic
- Make sure water runs off the sill
- Ask a joiner to look at soft timber first
- Take care around the mastic when scraping paint
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
When to call us in North Moreton
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
It’s worth asking for a quote if you see:
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
- Silicone on a period window that looks wrong
- Tired mastic found when preparing windows for paint
Homes close to Church of All Saints include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- What happens if they find a problem under the old sealant
- Whether the sealant suits the joint
- What preparation is included
- Whether they seal over old material or remove it
Your questions about sand mastic in North Moreton
Is North Moreton within the area you cover?
Yes. North Moreton is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover North Moreton for sand mastic?
Yes. Our work covers London and the South East, and North Moreton is part of that. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Can you do several jobs on one visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Do I need permission for sand mastic on a listed building?
Checking first is sensible. Ask your local planning authority whether consent is needed for work on a listed home or in a conservation area.
How long does sand mastic take to go off?
Not straight away. The skin forms first, and the full set comes later, and we’ll tell you what to expect.
What happens on the day
You do not need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes a few hours for a single window, longer for several for a typical job. In a small place like North Moreton, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Before we arrive
- Mention any parking rules near the property
- Tell us about any water getting in
- Keep children and pets away from the work area
How to get a quote
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Related advice
Sand mastic in North Moreton: local notes
Historic houses like Brightwell Manor (about 1.2 miles north-east) are a reminder that the area around North 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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as South Moreton Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Didcot Parkway station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
North Moreton is about 2 miles east of Didcot, in Oxfordshire. Our applicators cover sand mastic for householders, landlords and businesses in North Moreton and nearby, as part of our work across Oxfordshire. North Moreton is one of 443 places in Oxfordshire we cover. For nearby work, see our Oxford page, about 10 miles away.
All of OX11 is within our area for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on High Street, Elm Road and Wallingford Road and the roads around them. We also cover Mackney (1 mile east), Brightwell-cum-Sotwell (2 miles north-east), Little Wittenham (2 miles north), Wallingford (3 miles east) and Shillingford (3 miles north-east). Within a short drive, we also cover Oxford (10 miles north), Abingdon-on-Thames (6 miles north-west), Thame (14 miles north-east), Wantage (10 miles west), Henley-on-Thames (13 miles east) and Grove (10 miles west).
What’s near North Moreton
Locally, jobs take us to homes and businesses close to St Birinus School and Bear at Home pub. The closest station to North Moreton is Didcot Parkway station, roughly 2.3 miles west. Other landmarks nearby include Brightwell Castle (1.3 miles north-east) and Pendon Museum (2.7 miles north-west). The countryside around North Moreton includes Mowbray Fields and Wittenham Clumps.
What the job involves on each surface
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Towns and villages near North Moreton
What else we do in North Moreton
Honest limits
It helps to know what we can’t do too:
- Whether work needs listed building consent
- Cracked or broken glass
- Masonry that needs repairing
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Brick reveals
- Period & listed homes
- Stone surrounds
- Timber door frames
- Tenement windows
- Sash and case windows