Oxfordshire · England
Great Holcombe Sand Mastic
Sand mastic across Great Holcombe and nearby, with old sealant always removed completely and a 12-month guarantee.
- Gaps round a timber door in stone or brick
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
Sand mastic in Great Holcombe, done properly
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. If you’re dealing with old cement repairs round a window that have failed and crumbling sand mastic round a window, we can help, on brick reveals, stone surrounds and period & listed homes alike.
Somewhere as small as Great Holcombe, 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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Great Holcombe (OX10)
- Wider area
- Oxfordshire
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Great Holcombe: your questions answered
Will you come out to Great Holcombe?
Yes. Great Holcombe is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
What guarantee comes with sand mastic in Great Holcombe?
All our work, in Great Holcombe and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and you’ll get one quote.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We’ll tell you what we are using and why.
Do you work for letting agents?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
How much does sand mastic cost in Great Holcombe?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
What exactly is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Landlords, agents and businesses in Great Holcombe
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Different surfaces, different methods
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. It’s renewed by hand.
What happens on the day
We keep the work tidy and contained to the area we are working on, so you can carry on as normal. The job normally takes a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. Somewhere like Great Holcombe needs a little journey planning: 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.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Mention any tricky access
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
How to get a quote
For sand mastic in Great Holcombe, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
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Also near Great Holcombe
What else we do in Great Holcombe
Windows and doors in Great Holcombe
Historic houses like Garsington Manor (about 3.8 miles north-west) are a reminder that the area around Great Holcombe has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as Church of St Giles, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Great Holcombe is about 3 miles north of Benson, in Oxfordshire. Every kind of property in Great Holcombe can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. Our Oxfordshire coverage runs to 443 places, and Great Holcombe is one of them. Oxford is on our list too, about 8 miles from Great Holcombe.
Postcode districts we cover here for sand mastic: OX10. If you’re just outside Great Holcombe, we cover Newington (1 mile north), Drayton St Leonard (1 mile west), Brookhampton (1 mile north), Stadhampton (1 mile north) and Berrick Salome (1 mile south-east). We also work in nearby towns such as Oxford (8 miles north-west), Didcot (7 miles south-west), Abingdon-on-Thames (7 miles west), Thame (9 miles north-east), Wantage (14 miles west) and Henley-on-Thames (13 miles south-east).
Local landmarks in Great Holcombe
Locally, jobs take us to homes and businesses close to The Catherine Wheel pub and the streets around them. A little further out are Brightwell Castle (4 miles south-west) and Littlemore Hospital (5.8 miles north-west). Green spaces nearby include Wells Farm and Wittenham Clumps.
When to call us in Great Holcombe
Some old mastic was never deep enough. A thin layer does not hold well so we make sure the new mastic is the right thickness.
These are the problems we are asked about most:
- Modern sealant on a period surround
- Weathered mastic on the most exposed windows
- Cement or filler used on old window joints that has cracked
- Draughts and rain around sash boxes
Around Great Holcombe, as everywhere, sand mastic is only as good as the preparation behind it.
Questions to ask before booking
- Whether all the old sealant comes out first
- How the colour is chosen
- What happens if the job turns out different
- Which sealant they’ll use, and why
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Why it’s worth doing now in Great Holcombe
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Older cottages and farmhouses around Great Holcombe can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re not sure whether it needs doing, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What you get with us
- Any old sealant cut out fully, not covered over
- Quality sealants from Arbo and Everbuild
- We leave the area clean and tidy
- Experience in homes, commercial sites and hotels
Take a look at how sealant jobs are priced or our reviews.
How we quote for sand mastic
We do not publish a price list, because no two jobs are the same. What we look at:
- How much there is to do
- Any mould that needs treating
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Helping us quote
You do not need to know the technical terms. Just tell us:
- How many joints, rooms or windows are involved
- Where the property is
- How we’d reach the joints
- A few photos by email, if you can
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.