Surrey · England
Sand mastic for sash & case windows in Ash Green, Surrey
Sand mastic in Ash Green from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weathered mastic on the most exposed windows
- Draughty sash windows at the surround
- Mastic that needs renewing before redecorating
Keeping the joints in good condition
So the new joints stay in good condition:
- Ask the planning authority about consent for listed or conservation-area homes
- Do not run silicone over sand mastic
- Avoid heavy scraping on the mastic joint
- Sort the mastic before the decorators arrive
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
Sand mastic in Ash Green
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. If you have wind and rain getting in round a sash window and old sand mastic that has cracked, crumbled or fallen out, we can help, whatever the surface.
Around Ash Green, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Place
- Ash Green (GU12)
- Region
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. In a small place like Ash Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us and we will talk you through it.
What you get with us
- Neat joints and a tidy finish
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
- Approved under the ARBOMaster scheme
The process
Good joint work is mostly preparation, so that is where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours per window, depending on the condition of the joints. Somewhere like Ash Green needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip 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.
- We pack any deep gaps so the mastic sits at the right depth.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Let us know about stairs, lifts or work at height
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work.
Read more
What we cannot put right
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Decayed frames that need repair
- Broken panes
- Planning or listed building consent (your local planning authority decides)
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before you book.
What we seal
- Period & listed homes
- Tenement windows
- Brick reveals
- Sash and case windows
- Stone surrounds
- Timber door frames
Landlord and commercial work in Ash Green
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
Ash Green: your questions answered
Do you work for landlords with property near Ash station?
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 will send you a clear quote.
Do you cover Ash Green for sand mastic?
Yes, Ash Green is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
Where are you based?
We’re based in Crawley, West Sussex, and we work across South East England, London and Scotland.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They decide whether consent is needed.
Is the work guaranteed?
There’s a 12-month guarantee on every job.
What’s sand mastic made of?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Is there any odour?
Some sealants have a smell while they cure. Ventilation helps.
Quotes for sand mastic in Ash Green
Jobs vary more than people expect. The main factors:
- How easy the joints are to reach
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- The old material and how stubborn it is
What it costs depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
To help us quote quickly, let us know:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
More services for Ash Green
Ash Green homes and the weather
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Wanborough Manor (about 2.1 miles east) are a reminder that the area around Ash Green 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’s traditional sand mastic.
Rented homes near Ash station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. If you live in an older home near Church of St Peter, the joint between an old wall and a newer frame is normally the first place rain gets in. For site and facilities teams at buildings such as Ash Grange Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Ash Green is about 2 miles east of Aldershot, in Surrey. Anywhere in GU12, we cover sand mastic for homes and businesses. Ash Green is one of 395 towns and villages in Surrey where we work for sand mastic. For nearby work, see our Reading page, about 18 miles away.
Our applicators cover all of GU12 for sand mastic. You’ll find streets such as Compass Rose Road, Drovers Way and Ash Green Lane East, all of which we cover. Other places close to Ash Green include Ash (1 mile west), Tongham (1 mile south-west), Seale (1 mile south), Ash Vale (2 miles north-west) and Sandy Cross (2 miles south-west). Larger places within reach include Guildford (6 miles east), Woking (8 miles north-east), Camberley (6 miles north), Farnham (4 miles south-west), Egham (15 miles north-east) and Frimley (5 miles north).
Landmarks near Ash Green
Around Ash Green, our work takes us to homes and buildings near The Dover Arms, The Connaught School and Ash Manor School, among other places. Ash Green’s nearest station is Ash station, roughly 0.6 miles north-west of the centre. Nearby you will also find Farnham Castle (4.4 miles west) and Guildford Hospital (4.2 miles east). Not far away are Ash Ranges and Hog's Back.