Oxfordshire · England
Sand Mastic in Marcham
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Marcham, with a one-year guarantee on every job. Ask us for a quote.
- Patchy fillers round a sash window
- Mastic that needs renewing before redecorating
- A silicone bead on a sash window that spoils the look
Sand mastic for homes and businesses in Marcham
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 explain which is best for yours. If you have draughts and rain around sash boxes and cement or filler used on old window joints that has cracked, we can put it right, whatever the surface.
Homes around Marcham range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
Your job is guaranteed for a year, as with all our work.
- Place
- Marcham (OX13)
- Region
- Oxfordshire
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Marcham homes and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Appleton Manor (about 3 miles north) are a reminder that the area around Marcham 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.
For landlords with property near Radley station, cracked sand mastic around sash windows lets in the draughts tenants complain about. If you look after a building such as Abingdon Preparatory School, the mastic around its windows and doors needs looking after like any other building’s.
Marcham is about 3 miles west of Abingdon-on-Thames, in Oxfordshire. We provide sand mastic to homes and businesses in Marcham and the surrounding area, as part of our work across Oxfordshire. Across Oxfordshire, we cover 443 places, and Marcham is one of them. There’s also a page for Oxford, about 7 miles away.
We cover every part of the OX13 postcode area for sand mastic and the streets around it. If you need sand mastic at a property on Haines Court, Orchard Way and Elwes Road or a nearby road, we can help. We also cover Frilford (1 mile west), Frilford Heath (1 mile north-west), Cothill (2 miles north), Tubney (2 miles north-west) and Shippon (2 miles north-east). Within a short drive, we also cover Oxford (7 miles north-east), Didcot (6 miles south-east), Abingdon-on-Thames (3 miles east), Witney (10 miles north-west), Carterton (13 miles north-west) and Wantage (6 miles south-west).
Around Marcham
Typical jobs here are in homes near Larkmead School and The Crown Public House, among other places. Marcham’s nearest station is Radley station, about 4.4 miles east. Well-known places in the area include Abingdon Community Hospital (1.7 miles east) and FitzHarris Castle (2.5 miles east). For a walk, there’s Hitchcopse Pit and Cumnor Hill.
The process
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before any work starts. The work generally takes a few hours per window, depending on the condition of the joints. For a job in Marcham, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we agree which joints need doing.
- 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.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
For sand mastic in Marcham, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before any work starts.
Read more
FAQs for Marcham
Is Marcham in your area for sand mastic?
Yes. Our work covers London and the South East, and Marcham is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job.
Is Marcham within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What should I tell you?
Tell us what needs doing and where, plus pictures if you have them. If we need more, we’ll ask.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Is the work guaranteed?
You get our 12-month guarantee on every job.
Do I have to be there?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it doesn’t work out, we can redo it.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint before the sand mastic goes in.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Crumbling stone or brickwork round the window
- Sashes that rattle, stick or won’t open
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Stone surrounds
- Brick reveals
- Sash and case windows
- Timber door frames
- Period & listed homes
- Tenement windows
When to call us in Marcham
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint, and they usually need raking out.
Keep an eye out for any of the following:
- Gaps between timber frames and stone or brick
- Cement or filler used on old window joints that has cracked
- Mastic dropping out of the joint
- Weathered mastic on the most exposed windows
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.
Comparing quotes
- What happens if the job turns out different
- Whether they seal over old material or remove it
- Are they insured?
- What product goes in the joint
Towns and villages near Marcham
More services for Marcham
Quotes for sand mastic in Marcham
The quote reflects the job in front of us. We look at:
- Whether there’s mould to deal with
- The number of rooms or windows
- Working hours on commercial sites
- Which sealant suits the joint
Combining jobs into one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.
What we need to know
To help us quote quickly, let us know:
- The type of property
- The address or postcode of the job
- How many joints, rooms or windows are involved
- A few photos by email, if you can
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Why deal with it now?
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. In a smaller place like Marcham, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- Approved under the ARBOMaster scheme
- Trusted Arbo and Everbuild sealants
- Tidy, careful work
- We never seal over old sealant
Read what affects the cost and customer reviews.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Don’t run silicone over sand mastic
- Look over the window mastic once a year
- Clear gutters so water doesn’t pour onto the windows
- Have rotten timber repaired before new mastic goes in
Leave the new mastic unpainted, as traditional guidance advises. If you’re redecorating, ask us first.
Once mastic starts to crumble, rain gets in. It can soak into the frame and the surrounding masonry so early renewal protects both.
Different surfaces, different methods
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Period and listed homes
A traditional finish suits a period property.