Surrey · England
Sand mastic for sash & case windows in West Byfleet, Surrey
Sand mastic for West Byfleet and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Wind and rain getting in round a sash window
- Failed mastic on an exposed elevation
- Old sand mastic that has cracked, crumbled or fallen out
About our sand mastic in West Byfleet
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you have wind and rain getting in round a sash window and gaps between timber frames and stone or brick, we can put it right.
In smaller places like West Byfleet, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
Every job is covered by a one-year guarantee, wherever you are in Surrey.
- Where
- West Byfleet (KT14)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why it’s worth doing now in West Byfleet
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic will not stop the gaps, and the new mastic is traditionally left unpainted. In a smaller place like West Byfleet, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
What you get with us
- Over 20 years’ experience
- We leave the area clean and tidy
- Anti-fungal sanitary silicone in wet areas
- We are fully insured
Read our cost guide or what customers say.
Towns and villages near West Byfleet
What else we do in West Byfleet
Landlord and commercial work in West Byfleet
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
West Byfleet: your questions answered
Do you cover West Byfleet for sand mastic?
Yes, West Byfleet is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Is West Byfleet within the area you cover?
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.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Do you have insurance?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Can tenants book the work?
Of course. Check with your landlord; we can send the quote to them too.
Is the work guaranteed?
Our 12-month guarantee covers every job.
West Byfleet homes and the weather
Historic houses like Byfleet Manor (about 1.8 miles east) are a reminder that the area around West Byfleet has older buildings as well as new. In older buildings, 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near West Byfleet station, any sash windows need sound mastic to keep draughts and rain out. For an older house near a landmark such as Church of St John the Baptist, the joint between an old wall and a newer frame is usually the first place rain gets in. Schools such as The Marist Catholic Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
West Byfleet is about 3 miles north-east of Woking, in Surrey. From the centre of West Byfleet to the outskirts, sand mastic is available for homes and businesses alike. Our Surrey coverage runs to 395 places, West Byfleet among them. You can also see our page for London, roughly 21 miles from West Byfleet.
Every address in KT14 is covered for sand mastic. That includes homes and businesses on Station Road, Station Approach and The Close. We also cover the places around West Byfleet: Woodham (1 mile north-west), Pyrford (1 mile south-west), Sheerwater (1 mile west), Pyrford Village (2 miles south) and Row Town (2 miles north). Larger places within reach include Guildford (7 miles south-west), Woking (3 miles south-west), Camberley (10 miles west), Epsom (10 miles east), Farnham (15 miles south-west) and Ewell (11 miles east).
Landmarks near West Byfleet
Locally, jobs take us to homes and businesses close to Fullbrook School, The Bishop David Brown School and Manor Farm. There’s a railway station in West Byfleet itself: West Byfleet station. A little further out are The Hockey Museum (2.6 miles south-west) and The Peacocks (2.7 miles south-west). The countryside around West Byfleet includes St Ann's Hill and Boldermere Lake.
What we do, step by step
You don’t need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes a few hours per window, depending on the condition of the joints for a typical job. In a smaller place like West Byfleet, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Preparing for the visit
- Clear items away from the joints we are working on
- Let us know about earlier repairs to the joints
- Keep children and pets away from the work area
Ask for a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or email us.
Related advice
Honest limits
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that need overhauling
- Putty and glazing repairs
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before booking.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Stone surrounds
- Tenement windows
- Timber door frames
- Period & listed homes
How we quote for sand mastic
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What we need to know
You don’t need to know the technical terms. Just tell us:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- If someone has resealed it before
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
How the job changes by surface
Tenement and terrace windows
Upper-floor windows need access planning. Let us know the floor and we’ll confirm access.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Aftercare tips
After the cure time, these simple habits help:
- Go gently near the mastic when preparing windows
- Check the mastic when you check the paintwork
- Make sure water runs off the sill
- Don’t paint over the new mastic
Don’t run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.
Sound mastic protects the frame. Once it fails, water can sit against the timber, which can lead to rot.