Oxfordshire · England
Sand Mastic in Sunnymead
Professional sand mastic in and around Sunnymead, with old sealant always removed completely and a 12-month guarantee.
- Cement or filler used on old window joints that has cracked
- Gaps round a timber door in stone or brick
- Draughts and rain around sash boxes
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and clear up. It generally takes a few hours per window, depending on the condition of the joints. In a smaller place like Sunnymead, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, we look at the surrounds with you and agree what needs doing.
- 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.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- Let us know about parking restrictions
- Keep children and pets away from the work area
- Mention any sign-in or site rules at work premises
Getting a quote
To get a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before any work starts.
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Sand mastic in Sunnymead, done properly
Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. If you have draughts and rain around sash boxes and old sand mastic that has cracked, crumbled or fallen out, we can put it right.
Homes around Sunnymead 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.
There’s a 12-month guarantee on every job.
- Location
- Sunnymead (OX2)
- Wider area
- Oxfordshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Sunnymead
There’s no set price list, because no two jobs are the same. The quote depends on:
- How easy the joints are to reach
- The number and length of the joints
- Whether there’s mould to deal with
- When we can work, for business premises
Combining jobs into one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Helping us quote
When you call or email, it’s useful to know:
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
- The type of property
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or send us an email and describe the job.
Do you need sand mastic in Sunnymead?
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.
Signs it’s time to call us include:
- Weathered mastic on the most exposed windows
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
- Silicone on a period window that looks wrong
Managing a site like Cutteslowe Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Before booking anyone
- When the joint can take water or movement
- What insurance they hold
- Who turns up on the day
- Is the old sealant removed completely?
DIY versus a professional finish
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Places near Sunnymead
What else we do in Sunnymead
What the job involves on each surface
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
When something else is needed
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- Planning or listed building consent (your local planning authority decides)
- Putty and glazing repairs
- Masonry that needs repairing
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Sash and case windows
- Brick reveals
- Stone surrounds
- Period & listed homes
- Timber door frames
- Tenement windows
Sunnymead questions
I let a flat near Oxford Parkway station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Do you cover Sunnymead for sand mastic?
Yes, Sunnymead is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Is it messy?
We keep the work tidy. We protect what’s around the joints.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Is consent needed for window work on a listed home?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
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.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
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. Around Sunnymead, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
- Homes, businesses and hotels
- A 12-month guarantee on all work
Read our cost guide or customer reviews.
What sand mastic looks like in Sunnymead
Historic houses like Holywell Manor (about 2.1 miles south) are a reminder that the area around Sunnymead 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’s traditional sand mastic. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Oxford Parkway station, any sash windows need sound mastic to keep draughts and rain out. Homes close to Roman Catholic Church of St Gregory and St Augustine include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Sunnymead is about 3 miles north-west of Oxford, in Oxfordshire. From the centre of Sunnymead to the outskirts, we cover sand mastic for every kind of property. Sunnymead is one of 443 towns and villages in Oxfordshire where we work.
Postcode districts we cover here for sand mastic: OX2. That includes homes and businesses on Wren Road, Scott Road and Wyatt Road. Sunnymead sits on or near the A4165, which makes travel easy. Nearby, we also carry out sand mastic in Cutteslowe (1 mile north), Summertown (1 mile south), North Oxford (1 mile south), Wolvercote (1 mile west) and Park Town (1 mile south). We also work in nearby towns such as Oxford (3 miles south-east), Didcot (12 miles south), Bicester (9 miles north-east), Abingdon-on-Thames (7 miles south), Witney (10 miles west) and Carterton (14 miles west).
Near you in Sunnymead
We work in homes and buildings around St Hugh's College Main Building Including Library, Oxford University Parks and Dew Drop Inn, among other places. Also close by are Summer Fields School (0.5 miles south) and Oxford Academy (0.7 miles south). The closest station to Sunnymead is Oxford Parkway station, roughly 1.4 miles north. Other landmarks nearby include Oxford Castle (2.3 miles south) and Oxford University Museum of Natural History (1.8 miles south). Open spaces near Sunnymead include Hook Meadow and The Trap Grounds and Headington Hill.