Surrey · England
Sand Mastic in Flexford
Window and door surrounds in Flexford need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Draughty sash windows at the surround
- Patchy fillers round a sash window
- Mastic that needs renewing before redecorating
Sand mastic for homes and businesses in Flexford
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. Common call-outs are for mastic that needs renewing before redecorating and modern sealant on a period surround, across brick reveals, tenement windows and stone surrounds.
Somewhere as small as Flexford, 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.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or drop us an email.
- Where
- Flexford (GU3)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. We shape it by hand to follow the stone.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is usually favoured.
Why it’s worth doing now in Flexford
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. Where a wall is exposed, as many are in small places like Flexford, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.
Why book with us
- Tidy, careful work
- Arbo and Everbuild products
- Anti-fungal silicone where joints get wet
- Fully insured
How we quote for sand mastic
You’ll get a clear quote before work begins. It takes into account:
- The amount of work
- How many rooms, windows or areas are involved
- Access and height
- How much old sealant there is and how hard it is to remove
What you pay reflects the work, not guesswork. That is why we ask a few questions first.
Asking for a quote
To help us quote quickly, please include:
- Where the job is, and your postcode
- Whether it has been sealed before
- The type of property
- Roughly how big the job is
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.
The process
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours per window, depending on the condition of the joints. Somewhere like Flexford needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- 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.
Before we arrive
- Mention any parking rules near the property
- Mention any tricky access
- For business premises, tell us about site rules or sign-in
Ask for a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We will give you a clear quote before any work starts.
Related advice
When to call us in Flexford
Rain on the window surround works into any crack and pushes it out. Windows facing the weather tend to go first.
Most people get in touch after spotting something like this:
- Gaps between timber frames and stone or brick
- Cracked mastic round a front door frame
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
If you live in an older home near Church of St Bartholomew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- Which colour the sealant will be
- The length of the guarantee
- Which sealant they’ll use, and why
- When the joint can take water or movement
Common questions in Flexford
Is Flexford 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.
Do you work for landlords with property near Wanborough station?
Yes, rental work is part of what we do. 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 work begins.
When will the new mastic be hard?
It skins over fairly quickly but takes longer to harden fully. We will tell you what to expect for your job.
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.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before any work starts.
Can you seal over the old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Do you guarantee sand mastic work?
Every job comes with our 12-month guarantee, and we’re fully insured.
Aftercare tips
Aftercare is simple:
- Look over the window mastic once a year
- Ask a joiner to look at soft timber first
- Ask us before painting near the mastic
- Clear gutters so water doesn’t pour onto the windows
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
Flexford homes and the weather
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Wanborough Manor (about 0.8 miles south-east) are a reminder that the area around Flexford has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For landlords with property near Wanborough station, any sash windows need sound mastic to keep draughts and rain out. Managing a site like Wyke Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Flexford is about 4 miles east of Aldershot, in Surrey. Whether you are in the middle of Flexford or further out, we cover sand mastic for every kind of property. Flexford is one of 395 places in Surrey where we work for sand mastic. Our Reading page covers work nearby, about 19 miles away.
Work in GU3 works the same way as everywhere else we cover. We cover properties on Christmaspie Avenue, Orchard Close and Cull's Road. Neighbouring places we cover for sand mastic include Christmas Pie (1 mile south), Wanborough (1 mile south-east), Normandy (1 mile north), Willey Green (1 mile north-east) and Wyke (1 mile north-west). Within a short drive, we also cover Guildford (4 miles east), Woking (7 miles north-east), Camberley (7 miles north), Farnham (6 miles south-west), Egham (14 miles north-east) and Walton-on-Thames (15 miles north-east).
What’s near Flexford
Around Flexford, our work takes us to homes and buildings near Ash Manor School and the streets around them. There’s a railway station in Flexford itself: Wanborough station. Other landmarks nearby include Guildford Hospital (2.6 miles east) and Guildford Castle (4.3 miles east). Green spaces nearby include Ash Ranges and Hog's Back.
Towns and villages near Flexford
What else we do in Flexford
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.