Surrey · England
Walton on the Hill Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Walton on the Hill, backed by a 12-month guarantee. Ask us for a quote.
- Gaps between timber frames and stone or brick
- Modern sealant on a period surround
- Mastic worn away on windows facing the weather
About our sand mastic in Walton on the Hill
A silicone bead around a sash window can look out of place and does not suit the building. Sand mastic is the traditional choice, and we can replace one with the other. If you have mastic worn away on windows facing the weather and cracked mastic round a front door frame, we can help, whatever the surface.
Somewhere as small as Walton on the Hill, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Walton on the Hill (KT20)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep sills and gutters clear so water drains away
- Ask us before painting near the mastic
- Inspect the joints round the windows every year or so
- Sort the mastic before the decorators arrive
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Towns and villages near Walton on the Hill
Other services in Walton on the Hill
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we have agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. Somewhere like Walton on the Hill needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Move anything stored near the joints
- Mention if the joints have been sealed before
- Tell us if parking is tricky
Getting a quote
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
Related advice
DIY sealant or a professional job?
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.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What sand mastic looks like in Walton on the Hill
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. With historic houses such as Fitznells Manor (about 5 miles north) nearby, there’s older building stock in the area around Walton on the Hill as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For site and facilities teams at buildings such as Walton-on-the-Hill Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Tadworth station? Then any sash windows need sound mastic to keep draughts and rain out.
Walton on the Hill is about 3 miles south-east of Ashtead, in Surrey. Our applicators cover sand mastic for homeowners, landlords and businesses in Walton on the Hill. Walton on the Hill is one of 395 towns and villages in Surrey where we work. There’s also a page for Crawley, roughly 12 miles from Walton on the Hill.
Work in KT20 is quoted and booked the same way as anywhere else. Streets in the area include Nursery Road, Deans Lane and Meadow Walk, and we cover them all. With the B2220 close by, Walton on the Hill is easy for our applicators to reach for sand mastic. We also cover the places around Walton on the Hill: Tadworth (1 mile north-east), Lower Kingswood (1 mile east), Headley (2 miles west), Kingswood (2 miles north-east) and Mogador (2 miles south-east). Larger places within reach include Guildford (14 miles west), Woking (14 miles west), Epsom (4 miles north), Horley (8 miles south-east), Redhill (4 miles south-east) and Ewell (5 miles north).
What’s near Walton on the Hill
We work in homes and buildings around Betchworth Quarry and Lime Kilns, Chinthurst School and The Bell pub, among other places. The closest station to Walton on the Hill is Tadworth station, roughly 0.9 miles north-east. Well-known places in the area include Reigate Castle (3.3 miles south-east) and Headley Court (1.6 miles north-west). Not far away are Reigate Heath and Mercers Lake.
What we cannot put right
A few problems are outside what sealant work can do:
- Crumbling stone or brickwork round the window
- Decisions on consent for listed homes
- Timber that has rotted
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Tenement windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Stone surrounds
- Sash and case windows
Common problems we fix in Walton on the Hill
Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.
It’s worth asking for a quote if you see:
- Open joints round the window box
- Cracked mastic round a front door frame
- Draughty sash windows at the surround
- Mastic that needs renewing before redecorating
If you live in an older home near Church of St Peter, the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- Who does the work, and how experienced they are
- How long the guarantee is
- Is the old sealant removed completely?
- What insurance they hold
Walton on the Hill: your questions answered
Will you come out to Walton on the Hill?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Walton on the Hill for sand mastic?
Yes, Walton on the Hill is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear price.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Do I need to be at home?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Can tenants book the work?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Should I use sand mastic or silicone?
Sand mastic normally suits period timber windows best. Modern frames normally suit a flexible sealant, and we’ll explain why.
Where are you based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Quotes for sand mastic in Walton on the Hill
For a quick quote, just ask. The main things that affect it are:
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- The type of sealant required
- Any working-time requirements on site
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Helping us quote
To make quoting easier, please include:
- Roughly how big the job is
- Photos by email, if that’s easy
- Access, such as stairs, a lift or height
- Where the property is
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.
How the job changes by surface
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
Timber door frames
Round a period front door, sand mastic gives the right look.