Surrey · England
Sand mastic for sash & case windows in Rushmoor, Surrey
We cover Rushmoor for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
- A silicone bead on a sash window that spoils the look
Your questions about sand mastic in Rushmoor
Is Rushmoor in your area for sand mastic?
Yes, Rushmoor is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Do you work for landlords with property near Farnham station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Can I choose the sealant colour?
We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The choice depends on the product the joint needs.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Where are you based?
We work from Crawley. We cover Rushmoor and the rest of Surrey.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
How long does sand mastic take to harden?
It takes a while. The skin forms first, and the full set comes later and we will give you an idea for your job.
Sand mastic for homes and businesses in Rushmoor
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. We work on brick reveals, timber door frames and stone surrounds, and the jobs we see most are window mastic to renew ahead of painting and a silicone bead on a sash window that spoils the look.
Somewhere as small as Rushmoor, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Rushmoor (GU10)
- Wider area
- Surrey
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Broken panes
- Decayed frames that need repair
- Crumbling stone or brickwork round the window
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly before you book.
What we seal
- Stone surrounds
- Period & listed homes
- Timber door frames
- Tenement windows
- Sash and case windows
- Brick reveals
What affects the quote in Rushmoor
You’ll get a clear quote before work begins. It’s based on:
- The type of sealant required
- When we can work, for business premises
- Mould in or behind the old joints
- The number and length of the joints
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- What’s wrong with the joints now
- Where the job is, and your postcode
- If it’s domestic, commercial or a hotel
- The rough size of the job
There’s no standard price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or email us.
Nearby places to Rushmoor
More services for Rushmoor
How to look after the new joints
A little care helps the new joints last. We recommend:
- Leave the new mastic unpainted
- Avoid patching sand mastic with silicone
- Ask the planning authority about consent for listed or conservation-area homes
- Clear gutters so water doesn’t pour onto the windows
Don’t run silicone over the new mastic. If you see a crack, ask us to take a look before trying a quick fix.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
How it works
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. For a village or hamlet like Rushmoor, the journey is planned in advance: 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.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Clear the area around the work
- On commercial sites, let us know about site rules
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we will talk you through the work.
Advice
Rushmoor homes and the weather
Historic houses like Farnham Castle (about 4.8 miles north-west) are a reminder that the area around Rushmoor has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
If you let a flat or house near Farnham station, any sash windows need sound mastic to keep draughts and rain out.
Rushmoor is about 4 miles south-east of Farnham, in Surrey. Across the GU10 area, our applicators can take on sand mastic. Our Surrey coverage runs to 395 places, and Rushmoor is one of them. There’s also a page for Reading, roughly 22 miles from Rushmoor.
Our applicators cover all of the GU10 postcode area for sand mastic and the streets around it. Local streets include Sandy Lane, Lowicks Road and Tilford Road. Close by, we work in Tilford Common (1 mile north), Pitch Place (1 mile south-east), Crosswater (1 mile south-west), Thursley (2 miles east) and Green Cross (2 miles south). Larger places within reach include Guildford (10 miles north-east), Woking (13 miles north-east), Camberley (12 miles north), Farnham (4 miles north-west), Frimley (11 miles north) and Haslemere (5 miles south).
What’s near Rushmoor
Around Rushmoor, our work takes us to homes and buildings near Bel And The Dragon-Churt pub and The Flashes, among other places. The closest station to Rushmoor is Farnham station, roughly 4.2 miles north-west of the centre. Other landmarks nearby include Haslemere and District Hospital (4.9 miles south) and Farnham Castle (4.8 miles north-west). For a walk, there’s Gibbet Hill and Upper Lake.
What happens if it’s left?
If you are redecorating, renew the mastic first. Paint over cracked mastic won’t stop the gaps, and the new mastic is traditionally left unpainted. Where a wall is exposed, as many are in small places like Rushmoor, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first and agree the price before starting.
Why Rushmoor clients choose us
- 12-month guarantee on every job
- We leave the area clean and tidy
- More than 20 years in sealant work
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced and what customers say.
Surface by surface
Timber door frames
Sand mastic is used round timber door frames too. We renew it the same way as on windows.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Do you need sand mastic in Rushmoor?
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
The problems people normally mention when they call are:
- Patchy fillers round a sash window
- Open joints round the window box
- Mastic that needs renewing before redecorating
- Weathered mastic on the most exposed windows
Farnham Castle, about 4.8 miles north-west, is one of the historic houses in the wider area around Rushmoor, and older homes nearby need a sealant that suits their walls.
Questions to ask before booking
- Is VAT in the price?
- How the colour is chosen
- What preparation is included
- What insurance they hold