Surrey · England
Sand mastic for sash & case windows in Compton, Surrey
We cover Compton for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Mastic that needs renewing before redecorating
- Old cement repairs round a window that have failed
- Crumbling sand mastic round a window
About our sand mastic in Compton
Sand mastic does not last for ever and gaps open up round the frame. We rake it out and renew it and tidies the surround. If you have draughty sash windows at the surround and mastic worn away on windows facing the weather, we can help.
Around Compton, 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.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Location
- Compton (GU3)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Towns and villages near Compton
Other services in Compton
What the job involves on each surface
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
Honest limits
Sealant isn’t the answer to every problem, and we’ll tell you before any work starts. Sealant won’t put right:
- Timber that has rotted
- Crumbling stone or brickwork round the window
- Decisions on consent for listed homes
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Period & listed homes
- Tenement windows
- Stone surrounds
- Brick reveals
- Sash and case windows
- Timber door frames
When to call us in Compton
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint and we normally remove them.
If you can see any of these, it’s time to have the joints looked at:
- A silicone bead on a sash window that spoils the look
- Gaps where the frame meets the masonry
- Old sand mastic that has cracked, crumbled or fallen out
- Mastic round period door frames that has failed
If you live in an older home near Church of St Nicholas, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Which sealant they’ll use, and why
- What guarantee comes with the work
- How the colour is chosen
- What happens if the job turns out different
How it works
Every visit runs the same way: we look at the joints together, protect the area around them, carry out the job and tidy away. It normally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Compton, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Tell us about any water getting in
- Move anything stored near the joints
- Keep pets and children clear of the area while we work
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Read more
Compton homes and the weather
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Loseley Park (about 1 mile east) are a reminder that the area around Compton 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.
Schools such as Loseley Fields Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages. Rented homes near Farncombe station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Compton is about 3 miles south-west of Guildford, in Surrey. Homes, rented property, offices and hotels in Compton can book us for sand mastic. Every job comes with our one-year guarantee. Across Surrey, we cover 395 places, and Compton is one of them. We also work in Crawley, around 20 miles away.
We work across the GU3 postcode area for sand mastic. Whether your property is on The Street, Spiceall and Almsgate or anywhere close by, our applicators can take on the job. Other places close to Compton include Hurtmore (1 mile south), Binscombe (1 mile south-east), Littleton (1 mile east), Shackleford (2 miles south-west) and Onslow Village (2 miles north-east). Larger places within reach include Guildford (3 miles north-east), Woking (7 miles north), Camberley (9 miles north-west), Farnham (7 miles west), Egham (15 miles north) and Walton-on-Thames (15 miles north-east).
Near you in Compton
Locally, jobs take us to homes and businesses close to Broadwater School, Pucks Oak Barn and McAlmont Reserves and The Harrow pub and the streets around them. Compton’s nearest station is Farncombe station, about 1.6 miles south-east of the centre. Well-known places in the area include Charterhouse School Museum (1.2 miles south) and Guildford Castle (2.8 miles north-east). Not far away are Farncombe Wood and Frith Hill.
Why act early in Compton
Draughts round a sash window aren’t always the sashes. Open mastic joints round the box can let air in, and renewing the mastic closes them. Where a wall is exposed, as many are in small places like Compton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
Compton questions
Do you cover smaller places like Compton?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you work for landlords with property near Farncombe station?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
What information do you need?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Are you insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It combines sand with a linseed-oil-based binder.
When will the new mastic be hard?
It takes a while. It skins first and hardens fully later and we’ll give you an idea for your job.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Aftercare tips
Simple care keeps the joints in good condition. Our advice:
- Ask the planning authority about consent for listed or conservation-area homes
- Have rotten timber repaired before new mastic goes in
- Avoid patching sand mastic with silicone
- Ask us before painting near the mastic
Do not touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry, so renewing it early is worth it.