Surrey · England
Sand mastic for sash & case windows in Ash Vale, Surrey
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Ash Vale, with a one-year guarantee on every job. Call for a quick quote.
- Old cement repairs round a window that have failed
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
How we handle sand mastic in Ash Vale
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. Common call-outs are for gaps between timber frames and stone or brick and draughty sash windows at the surround, across timber door frames, sash and case windows and tenement windows.
In a smaller place like Ash Vale, 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.
All our work is covered by a one-year guarantee.
- Where
- Ash Vale (GU12, GU14)
- Region
- Surrey
- Cover
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Period and listed homes
A traditional finish suits a period property.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
What sealant work can’t fix
New sealant can’t fix everything, and we’ll tell you before work begins. It won’t solve:
- Decayed frames that need repair
- Whether work needs listed building consent
- Sashes that rattle, stick or will not open
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
What we seal
- Stone surrounds
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Timber door frames
Looking after it afterwards
To keep the joints looking good and working properly:
- Go gently near the mastic when preparing windows
- Clear gutters so water does not pour onto the windows
- Plan mastic work ahead of painting
- Check the mastic when you check the paintwork
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
Ash Vale: your questions answered
Can you help a landlord with a rental near Ash Vale station?
Yes, we work for letting agents and landlords. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
Do you cover smaller places like Ash Vale?
Yes. Ash Vale is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
How long does the job take?
A typical job takes a few hours for a single window, longer for several. Your quote will say how long we expect yours to take.
Can I choose the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we agree the colour with you before we start.
Can old silicone round a sash window be swapped for sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we are using and why.
Where is Mr Mastic based?
Our base is Crawley. We work across South East England, London and Scotland.
The process
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes anything from a few hours to a full day, depending on how many windows, and the area is left clean. A visit to Ash Vale is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Tell us if parking is tricky
- Clear items away from the joints we’re working on
Ask for a quote
For sand mastic in Ash Vale, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Read more
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
Do you need sand mastic in Ash Vale?
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
The problems people normally mention when they call are:
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
Schools such as Shawfield Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- Whether you can choose the colour
- What preparation is included
- What product goes in the joint
- Is the old sealant removed completely?
Sand mastic in Ash Vale: local notes
Historic houses like Wanborough Manor (about 3.6 miles south-east) are a reminder that the area around Ash Vale has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to St Mary's Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Ash Vale station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Ash Vale is about 2 miles north-east of Aldershot, in Surrey. Whether you are in the middle of Ash Vale or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our Surrey coverage runs to 395 places, Ash Vale among them. You can also see our page for Reading, roughly 17 miles from Ash Vale.
Every address in GU12 and GU14 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Station Road East, Station Road West and Waverley Drive or anywhere close by, our applicators can take on the job. You will find Ash Vale on the B3165 and B3166, which makes it straightforward to reach with everything needed for sand mastic. Other places close to Ash Vale include Ash (1 mile south), North Camp (1 mile north-west), Mytchett (2 miles north), Ash Green (2 miles south-east) and Aldershot (2 miles south-west). Further out, we also cover Guildford (7 miles east), Woking (7 miles north-east), Camberley (5 miles north), Farnham (5 miles south-west), Egham (14 miles north-east) and Frimley (3 miles north).
Around Ash Vale
In Ash Vale, that means homes and buildings near Ramillies Park, The Swan pub and National Aerospace Library and the streets around them. The nearest railway station is Ash Vale station, about 0.5 miles north of the centre. A little further out are Frimley Park Hospital (3.8 miles north) and Farnham Castle (4.7 miles south-west). The countryside around Ash Vale includes Aunt's Pool and Ash Ranges.
What happens if it’s left?
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. In an older home around Ash Vale, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
Why us?
- More than 20 years in sealant work
- Old sealant always removed completely
- ARBOMaster approved applicator
- Tidy, careful work
Read how sealant jobs are priced and our reviews.