Surrey · England
Sand Mastic in Martyr's Green
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Martyr's Green, backed by a one-year guarantee. Ask us for a quote.
- Mastic worn away on windows facing the weather
- Modern sealant on a period surround
- Patchy fillers round a sash window
What we are called out for in Martyr's Green
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint, and they usually need raking out.
The most common problems we see are:
- Failed mastic on an exposed elevation
- Cracked mastic round a front door frame
- Mastic that needs renewing before redecorating
- Open joints round the window box
Byfleet Manor, about 2.2 miles north-west, is one of the historic houses in the wider area around Martyr's Green, and older homes nearby need a sealant that suits their walls.
Questions to ask before booking
- Whether the sealant suits the joint
- Whether VAT is included
- Are they insured?
- How long to leave it before use
About our sand mastic in Martyr's Green
Across Martyr's Green, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. We are often asked to deal with gaps round a timber door in stone or brick and old cement repairs round a window that have failed, across period & listed homes, stone surrounds and tenement windows.
Around Martyr's Green, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
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.
- Place
- Martyr's Green (KT11)
- Wider area
- Surrey
- Cover
- One year on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Martyr's Green
More services for Martyr's Green
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not paint over the new mastic
- Check the mastic when you check the paintwork
- Sort the mastic before the decorators arrive
- Avoid patching sand mastic with silicone
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
What happens if it’s left?
Gaps round a sash window let in rain and draughts. Left, water can reach the timber and the wall so renewing it early protects the window. Where a wall is exposed, as many are in small places like Martyr's Green, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- Fully insured
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
- More than 20 years in sealant work
Read what affects the cost or our reviews.
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
Landlords and agents in Martyr's Green can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
What the job involves on each surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Sash and case windows
The mastic round a sash window is on show so we finish it carefully.
Martyr's Green questions
Do you work for landlords with property near Effingham Junction station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you cover Martyr's Green for sand mastic?
Yes, Martyr's Green is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before work begins.
How do I get a quote for sand mastic in Martyr's Green?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Is it possible to take out silicone and use sand mastic instead?
Normally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Is the work guaranteed?
Every job comes with our one-year guarantee.
What happens on the day
Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours per window, depending on the condition of the joints. In a small place like Martyr's Green, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
How to get a quote
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job and send photos if you have them.
Read more
Should I try it myself first?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Windows and doors in Martyr's Green
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Byfleet Manor (about 2.2 miles north-west) are a reminder that the area around Martyr's Green 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.
Letting a property close to Effingham Junction station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
Martyr's Green is about 5 miles south of Weybridge, in Surrey. For sand mastic in and around Martyr's Green, please phone 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Surrey. We cover 395 towns and villages across Surrey. For nearby work, see our Crawley page.
Every address in KT11 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Old Lane and Ockham Lane or a nearby road, our applicators can take on the job. Other places close to Martyr's Green include Hatchford (1 mile north-east), Hatchford End (1 mile north-west), Downside (1 mile north-east), Wisley (2 miles north-west) and Pyrford Green (3 miles north-west). We also work in nearby towns such as Guildford (7 miles south-west), Woking (6 miles west), Camberley (13 miles west), Epsom (8 miles east), Horley (15 miles south-east) and Redhill (13 miles east).
Local landmarks in Martyr's Green
We work in homes and buildings around The Forest and the Highlands and The Black Swan pub, among other places. The nearest railway station is Effingham Junction station, about 1.2 miles south-east. A little further out are Send and Ripley History Society Museum (2.4 miles west) and Woking Community Hospital (5.1 miles west). Open spaces near Martyr's Green include Boldermere Lake and Papercourt Marshes.