Surrey · England
Sand Mastic in Ashford Common
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Ashford Common and across Surrey. Fully insured, ARBOMaster approved and guaranteed for a year.
- Mastic that needs renewing before redecorating
- A silicone bead on a sash window that spoils the look
- Mastic dropping out of the joint
How we handle sand mastic in Ashford Common
Sand mastic does not last for ever and gaps open up round the frame. We rake it out and renew it and tidies the surround. Typical jobs include wind and rain getting in round a sash window and mastic worn away on windows facing the weather, across tenement windows, sash and case windows and brick reveals.
Many houses in smaller places like Ashford Common have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Ashford Common (TW15, TW16)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Sand mastic in Ashford Common: local notes
Historic houses like Strawberry Hill House (about 4.6 miles east) are a reminder that the area around Ashford Common has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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 Meadhurst Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Upper Halliford station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Ashford Common is about 1 mile north-west of Sunbury-on-Thames, in Surrey. If you need sand mastic in Ashford Common, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We cover Surrey from our Crawley base, Ashford Common included. Across Surrey, we cover 395 places, Ashford Common among them. For nearby work, see our London page.
Postcode districts we cover here for sand mastic: TW15 and TW16. If you need sand mastic at a property on Saxon Road, Dane Road and Tudor Road or a nearby road, our applicators can take on the job. Close by, we work in Littleton Common (1 mile south-west), Hounslow (1 mile north-east), Charlton (1 mile south), Sunbury-on-Thames (1 mile south-east) and Ashford (1 mile north-west). Larger places within reach include Guildford (14 miles south-west), Woking (10 miles south-west), Camberley (14 miles south-west), Epsom (10 miles south-east), Ewell (9 miles south-east) and Egham (5 miles west).
Landmarks near Ashford Common
In Ashford Common, that means homes and buildings near Sunbury Park, Sunbury Manor School and Sunbury Manor School and the streets around them. The nearest railway station is Upper Halliford station, about 0.9 miles south-east. Other landmarks nearby include Ashford Hospital (1.7 miles north-west) and Kempton Steam Museum (1.5 miles east). The countryside around Ashford Common includes St Ann's Hill and Kempton Park Reservoirs.
Should I try it myself first?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Common questions in Ashford Common
Do you cover smaller places like Ashford Common?
Yes, Ashford Common is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Ashford Common in your area for sand mastic?
Yes, Ashford Common is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or email us and tell us what needs doing.
How long does sand mastic take to go off?
Not right away. The skin forms first, and the full set comes later, and we will tell you what to expect.
What’s sand mastic made of?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and finished to sit neatly against the masonry.
Should I use sand mastic or silicone?
It depends on the window. Period windows in stone or brick normally suit sand mastic and newer frames normally get a flexible sealant.
Will the old sealant be removed?
Always. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
How long does sand mastic take?
It depends on the size of the job, but most jobs take a few hours for a single window, longer for several. We’ll tell you when we quote.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
What we can’t put right
We’d rather tell you now than do work that will not last, so these are the limits:
- Planning or listed building consent (your local planning authority decides)
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or will not open
If you are not sure, just phone 0345 464 0079 or email us and we’ll give you a straight answer.
Surfaces we seal
- Sash and case windows
- Stone surrounds
- Period & listed homes
- Timber door frames
- Brick reveals
- Tenement windows
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per window, depending on the condition of the joints. For a job in Ashford Common, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Clear items away from the joints we are working on
- Keep children and pets away from the work area
- For business premises, tell us about site rules or sign-in
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you are ready, ring 0345 464 0079 or drop us an email.
Advice
Common problems we fix in Ashford Common
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
People usually contact us when they notice one of these:
- Failed mastic on an exposed elevation
- Mastic that needs renewing before redecorating
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
For an older house near a landmark such as St Saviour, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- What the quote includes, VAT included or not
- How long the guarantee is
- What happens if the job turns out different
- What product goes in the joint
Also near Ashford Common
Also in Ashford Common
What the job involves on each surface
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.
Stone surrounds
Stone surrounds suit sand mastic well. The finish blends with the masonry.
Why it’s worth doing now in Ashford Common
New sash windows are a major, costly change 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. Homes in smaller places like Ashford Common can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Combining jobs into one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Why book with us
- Tidy, careful work
- Quality sealants from Arbo and Everbuild
- ARBOMaster approved applicator
- Domestic, commercial and hotel work
Read our cost guide and our reviews.