Surrey · England
Grayshott Sand Mastic
Professional sand mastic in and around Grayshott, with old sealant always removed completely.
- Weathered mastic on the most exposed windows
- Cement or filler used on old window joints that has cracked
- Crumbling sand mastic round a window
Work for landlords, hotels and businesses
If you manage several properties in or around Grayshott, several properties can go on one quote. Send us the addresses and the work at each.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Sand mastic for homes and businesses in Grayshott
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. Typical jobs include mastic dropping out of the joint and gaps between timber frames and stone or brick, across tenement windows, period & listed homes and sash and case windows.
Houses in smaller places like Grayshott can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
There’s a 12-month guarantee on every job, large or small.

- Location
- Grayshott (GU26)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The visit itself generally takes a few hours for a single window, longer for several, depending on the size of the job. For a job in Grayshott, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Deep voids are packed so the mastic is the right thickness.
- 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
- Keep pets and children clear of the area while we work
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or email us.
Advice
Grayshott: your questions answered
Is Grayshott within the area you cover?
Yes. Grayshott 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.
I let a flat near Haslemere station. Can you help?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
What’s sand mastic made of?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
How much does sand mastic cost in Grayshott?
Size, access and the old material all affect the cost. Call for a quick quote.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Does someone need to be in?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Can I paint the new mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
How we quote for sand mastic
The quote reflects the job in front of us. We look at:
- When we can work, for business premises
- The number and length of the joints
- Access and height
- The number of rooms or windows
Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will give you a clear quote for the lot.
Helping us quote
You don’t need to know the technical terms. Just tell us:
- Whether it’s a home or a business
- Where the property is
- Pictures of the joints, sent by email
- Whether it has been sealed before
For sand mastic in Grayshott, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Why act early in Grayshott
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. In an older home around Grayshott, damp from a failed joint can get into timber and plaster, and that is a much bigger job than renewing the sealant.
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.
Why book with us
- One-year guarantee on every job
- Tidy, careful work
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
Read what affects the cost and customer reviews.
Sand mastic in Grayshott: local notes
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.
If you look after a building such as Grayshott Church of England Controlled Primary School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Church of St Luke, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Haslemere station, any sash windows need sound mastic to keep draughts and rain out.
Grayshott is about 7 miles south of Farnham, in Surrey. For sand mastic in and around Grayshott, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover Surrey. We cover 395 towns and villages across Surrey, from the larger towns to small villages. We also work in Crawley, around 24 miles away.
Postcode districts we cover here for sand mastic: GU26. Local streets include Church Lane, Vale Wood Lane and Avenue Road, and we cover them all. We also cover the places around Grayshott: Hindhead (1 mile east), Nutcombe (1 mile south-east), Beacon Hill (1 mile north), Whitmoor Vale (1 mile north-west) and Green Cross (2 miles north). Larger places within reach include Guildford (12 miles north-east), Camberley (15 miles north), Farnham (7 miles north), Frimley (14 miles north), Cranleigh (12 miles east) and Ash (9 miles north).
Around Grayshott
Around Grayshott, our work takes us to homes and buildings near The Fox & Pelican pub, Woolmer Hill School and St Edmund's School, among other places. The closest station to Grayshott is Haslemere station, about 2.2 miles south-east of the centre. A little further out are Haslemere and District Hospital (2.4 miles south-east). Green spaces nearby include Lynchmere Commons and Gibbet Hill.
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Go gently near the mastic when preparing windows
- Keep sills and gutters clear so water drains away
- Get any rot dealt with first
- Inspect the joints round the windows every year or so
Do not run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
What sealant work cannot fix
To be straight with you, there are a few things sealant won’t fix:
- Timber that has rotted
- Sashes that rattle, stick or will not open
- Crumbling stone or brickwork round the window
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Timber door frames
- Stone surrounds
- Brick reveals
- Period & listed homes
