Oxfordshire · England
Sand mastic for sash & case windows in Faringdon, Oxfordshire
Our applicators work in Faringdon on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Modern sealant on a period surround
- Open joints round the window box
- Draughts and rain around sash boxes
Signs you need sand mastic in Faringdon
Water gets into small cracks in the mastic and loosens it further. Windows facing the weather tend to go first.
The most common problems we see are:
- Open joints round the window box
- Silicone on a period window that looks wrong
- Cement or filler used on old window joints that has cracked
- Failed mastic on an exposed elevation
For site and facilities teams at buildings such as Faringdon Community College, larger buildings have plenty of frames, and the mastic around each one ages.
Before booking anyone
- Whether the sealant suits the joint
- What insurance they hold
- When the joint can take water or movement
- How the colour is chosen
How we handle sand mastic in Faringdon
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap and tidies the surround. Common call-outs are for mastic that needs renewing before redecorating and a silicone bead on a sash window that spoils the look, on stone surrounds, sash and case windows and brick reveals.
In a smaller place like Faringdon, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Where
- Faringdon (SN7)
- Region
- Oxfordshire
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. For a job in Faringdon, 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.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Mention any tricky access
- Mention any sign-in or site rules at work premises
- Let us know about earlier repairs to the joints
Get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
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Landlord and commercial work in Faringdon
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
Places near Faringdon
More services for Faringdon
What we can’t put right
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Sashes that rattle, stick or won’t open
- Whether work needs listed building consent
- Decayed frames that need repair
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
What we seal
- Timber door frames
- Stone surrounds
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
What sand mastic looks like in Faringdon
With historic houses such as Buscot Park (about 3 miles north-west) nearby, there’s older building stock in the area around Faringdon as well as newer homes. In older buildings, 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.
Homes close to Church of All Saints include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Faringdon is about 10 miles south-west of Witney, in Oxfordshire. Whether you’re in the middle of Faringdon or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Faringdon is one of 443 places in Oxfordshire where we work for sand mastic. Oxford is on our list too, about 17 miles from Faringdon.
Here we cover the SN7 postcode area for sand mastic. That includes homes and businesses on Station Road, Marlborough Gardens and Marlborough Close. Faringdon is on the A417 and A4095, which makes it straightforward to reach with everything needed for sand mastic. Neighbouring places we cover for sand mastic include Little Coxwell (1 mile south), Fernham (2 miles south), Shellingford (2 miles south-east), Hatford (3 miles east) and Baulking (3 miles south-east). Further out, we also cover Didcot (15 miles east), Abingdon-on-Thames (13 miles east), Witney (10 miles north-east), Carterton (8 miles north), Wantage (8 miles south-east) and Grove (8 miles south-east).
Local landmarks in Faringdon
Typical jobs here are in homes near Faringdon Infant School and The Swan pub. Nearby you’ll also find Faringdon Day Hospital (within half a mile north) and Faringdon Castle (0.8 miles north-east). Green spaces nearby include Badbury Hill.
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Look over the window mastic once a year
- Have rotten timber repaired before new mastic goes in
- Keep sills and gutters clear so water drains away
- Ask us before painting near the mastic
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Quotes for sand mastic in Faringdon
For a quick quote, just ask. What matters most is:
- The number and length of the joints
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we’ll explain what it covers.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- A few photos by email, if you can
- What’s wrong with the joints now
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
Need a quote? Please ring 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Faringdon questions
Is there a guarantee on sand mastic in Faringdon?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Will you come out to Faringdon?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can old silicone round a sash window be swapped for sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic beds in well.
How long does the job take?
Typically it takes a few hours per window, depending on the condition of the joints. Bigger jobs take longer, and we will tell you how long to expect.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Should I check with the council before work on a listed or conservation-area home?
Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like, but they decide.
Which is right for my windows, sand mastic or modern sealant?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.