Surrey · England
Sand Mastic in Stonehill
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for householders, landlords and businesses in Stonehill. Fully insured, ARBOMaster approved and guaranteed for a year.
- A silicone bead on a sash window that spoils the look
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
Common problems we fix in Stonehill
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
People normally contact us when they notice something like this:
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic round period door frames that has failed
- Gaps where the frame meets the masonry
- Wind and rain getting in round a sash window
If you let a flat or house near Longcross station, any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- What the cure time is
- How hidden problems are handled
- How much experience the applicator has
- How the colour is chosen
Sand mastic in Stonehill
Silicone on a period window often looks wrong and is not always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you have mastic dropping out of the joint and wind and rain getting in round a sash window, we can put it right, on stone surrounds, tenement windows and sash and case windows alike.
In a village or hamlet like Stonehill, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Place
- Stonehill (KT16)
- Region
- Surrey
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
What else we do in Stonehill
Why act early in Stonehill
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a small place like Stonehill, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- We never seal over old sealant
- An ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
- A 12-month guarantee on all work
See our cost guide or what customers say.
Sand mastic in Stonehill: local notes
With historic houses such as Botleys Mansion (about 1.4 miles north-east) nearby, there’s older building stock in the area around Stonehill as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Salesian School? Then larger buildings have plenty of frames, and the mastic around each one ages. For an older house near a landmark such as Christ Church, the joint between an old wall and a newer frame is normally the first place rain gets in.
Stonehill is about 3 miles north of Woking, in Surrey. For sand mastic in and around Stonehill, it’s easy to get a quote: please ring 0345 464 0079 or email us. We cover Surrey from our Crawley base. Across Surrey, we cover 395 places, and Stonehill is one of them. There’s also a page for Reading, roughly 19 miles from Stonehill.
Our applicators cover all of KT16 for sand mastic. Streets in the area include Stonehill Road and Stonehill Crescent, and we cover them all. We also cover the places around Stonehill: Ottershaw (1 mile east), Longcross (1 mile north-west), Mimbridge (2 miles south-west), Lyne (2 miles north-east) and Trumps Green (2 miles north). We also work in nearby towns such as Guildford (8 miles south), Woking (3 miles south), Camberley (8 miles west), Epsom (13 miles east), Farnham (15 miles south-west) and Ewell (13 miles east).
Landmarks near Stonehill
Typical jobs here are in homes near Gracious Pond and the streets around them. The closest station to Stonehill is Longcross station, roughly 2.1 miles north-west of the centre. Nearby you will also find Chobham Museum (2.2 miles south-west) and The Peacocks (3.1 miles south). For a walk, there’s Gracious Pond and St Ann's Lake.
What happens on the day
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. It normally takes a few hours per window, depending on the condition of the joints. In a small place like Stonehill, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
- Let us know about stairs, lifts or work at height
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’re ready, ring 0345 464 0079 or drop us an email.
Advice
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
A DIY attempt does not rule out a professional job. We cut it out and start again.
What sealant work cannot fix
Before you book, it’s worth knowing the limits:
- Cracked or broken glass
- Rotten sashes, sills or window boxes (a joiner’s job)
- 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.
Where we work in Stonehill
- Sash and case windows
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
Common questions in Stonehill
Is Stonehill in your area for sand mastic?
Yes. Our work covers London and the South East, and Stonehill is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Do you cover smaller places like Stonehill?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you guarantee sand mastic work?
Our 12-month guarantee applies to all our work.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
Is it possible to take out silicone and use sand mastic instead?
Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.
What is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Leave the new mastic unpainted
- Ask the planning authority about consent for listed or conservation-area homes
- Look over the window mastic once a year
- Avoid patching sand mastic with silicone
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
What affects the cost of sand mastic
The price is agreed before any work begins. It takes into account:
- The old material and how stubborn it is
- Whether the work is at height
- Mould in or behind the old joints
- How many areas need sealing
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Asking for a quote
There’s no need for technical detail. It helps if you can tell us:
- Where the property is
- What’s wrong with the joints now
- The type of property
- Photos by email, if that is easy
If you’re in Stonehill and need sand mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.