Surrey · England
East Horsley Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in East Horsley. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Silicone on a period window that looks wrong
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Do not paint over the new mastic
- Have rotten timber repaired before new mastic goes in
- Take care around the mastic when scraping paint
- Sort the mastic before the decorators arrive
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens.
Sand mastic for homes and businesses in East Horsley
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. If you are dealing with old cement repairs round a window that have failed and draughts and rain around sash boxes, we can help, whatever the surface.
Around East Horsley, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.
Big or small, it’s backed by our one-year guarantee in East Horsley and across Surrey.
- Location
- East Horsley (KT24, KT11)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the cost of sand mastic
Call for a quick quote. What matters most is:
- Access and height
- Any mould that needs treating
- How many rooms, windows or areas are involved
- Which sealant suits the joint
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
What we need to know
Before you ask for a quote, have a think about:
- The address or postcode of the job
- Any access issues, like height or stairs
- Roughly how big the job is
- What’s wrong with the joints now
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Surface by surface
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Period and listed homes
Materials matter on listed and conservation-area homes. Sand mastic is often the preferred finish.
FAQs for East Horsley
Is East Horsley within the area you cover?
Yes, East Horsley is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
I let a flat near Horsley station. Can you help?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
What do you need from me for a quote?
Let us know what needs doing and where, with photos by email if possible. We’ll ask anything else we need to know.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll advise.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Do you have insurance?
Yes. Full insurance covers our work.
Is sand mastic better than silicone for my windows?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant, and we will explain why.
Towns and villages near East Horsley
What else we do in East Horsley
What happens on the day
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a single window, longer for several. Parking around East Horsley is generally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check the window surrounds and agree which joints need renewing.
- 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.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Let us know about earlier repairs to the joints
- Mention any tricky access
- Tell us if parking is tricky
Getting a quote
For a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before any work starts.
Read more
What sealant work cannot fix
It helps to know what we cannot do too:
- Crumbling stone or brickwork round the window
- Broken panes
- Sashes that need overhauling
If in doubt, ring 0345 464 0079 or email us and we will say what we think before booking.
Surfaces we seal
- Tenement windows
- Period & listed homes
- Timber door frames
- Sash and case windows
- Stone surrounds
- Brick reveals
Windows and doors in East Horsley
Historic houses like Hatchlands Park (about 2.3 miles south-west) are a reminder that the area around East Horsley has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around Church of St Martin, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Horsley station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as The Raleigh School, its window and door frames need their mastic kept sound, just like a home’s.
East Horsley is about 5 miles west of Leatherhead, in Surrey. Homes, rented property, offices and hotels in East Horsley is covered for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. East Horsley is one of 395 towns and villages in Surrey we cover for sand mastic. We also work in Crawley, about 16 miles from East Horsley.
All of KT24 and KT11 is within our area for sand mastic. If you need sand mastic at a property on Glendene Avenue, Cobham Way and High Park Avenue or anywhere close by, we can help. Neighbouring places we cover for sand mastic include West Horsley (1 mile west), Effingham (1 mile east), Ockham (2 miles north-west), East Clandon (3 miles south-west) and Ripley (3 miles north-west). Larger places within reach include Guildford (7 miles west), Woking (7 miles north-west), Camberley (13 miles west), Epsom (8 miles north-east), Horley (13 miles south-east) and Redhill (12 miles east).
What’s near East Horsley
Typical jobs here are in homes near Howard of Effingham School, The Forest and the Highlands and Duke Of Wellington Public House, among other places. There’s a railway station in East Horsley itself: Horsley station. Nearby you will also find Send and Ripley History Society Museum (3.2 miles north-west). The countryside around East Horsley includes Papercourt Marshes and Boldermere Lake.
Work for landlords, hotels and businesses
Landlords and agents in East Horsley can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.