Surrey · England
Sand mastic for sash & case windows in Wraysbury, Surrey
We cover Wraysbury 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.
- Mastic round period door frames that has failed
- Silicone on a period window that looks wrong
- Cement or filler used on old window joints that has cracked
How we handle sand mastic in Wraysbury
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We are often asked to deal with a silicone bead on a sash window that spoils the look and window mastic to renew ahead of painting, on period & listed homes, tenement windows and brick reveals.
Houses in smaller places like Wraysbury can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
Whatever the size of the job, you get the same one-year guarantee in Wraysbury and across Surrey.
- Location
- Wraysbury (TW19)
- Region
- Surrey
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Wraysbury
Do you cover smaller places like Wraysbury?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Sunnymeads station?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
What exactly is sand mastic?
Sand mastic is a traditional material for pointing round windows and doors. It’s made with sand and a linseed-oil-based binder.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They decide whether consent is needed for work to your windows.
Where are you based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
When will the new mastic be hard?
It forms a skin fairly soon, then hardens over a longer period. The weather and joint depth both affect it.
Is the work guaranteed?
Our 12-month guarantee applies to all our work.
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.
Signs you need sand mastic in Wraysbury
Timber frames move with the seasons. The movement cracks the mastic little by little.
Keep an eye out for any of the following:
- Gaps round a timber door in stone or brick
- Open joints round the window box
- Mastic worn away on windows facing the weather
- A silicone bead on a sash window that spoils the look
Schools such as Wraysbury Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Comparing quotes
- What the cure time is
- What the quote includes, VAT included or not
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
When something else is needed
A few problems are outside what sealant work can do:
- Putty and glazing repairs
- Crumbling stone or brickwork round the window
- Timber that has rotted
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Joints and surfaces we work on
- Brick reveals
- Timber door frames
- Tenement windows
- Sash and case windows
- Stone surrounds
- Period & listed homes
Landlord and commercial work in Wraysbury
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
What the job involves on each surface
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Like-for-like sand mastic is generally favoured.
Nearby places to Wraysbury
What else we do in Wraysbury
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours per window, depending on the condition of the joints. A visit to Wraysbury is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- 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.
How to prepare
- Mention any parking rules near the property
- Where the joints are inside, avoid wetting them before we arrive
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
Getting a quote is simple: tell us what needs doing and where, and roughly how big it is. A few photos by email make the job easier to understand, and we’ll take it from there.
Advice
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.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Why it’s worth doing now in Wraysbury
Not every draught comes from the sashes themselves. Gaps between the frame and the wall can be just as bad and new mastic seals them. In an older home around Wraysbury, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we’ll explain the quote if you ask.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Domestic, commercial and hotel work
- More than 20 years in sealant work
- Old sealant always removed completely
See our cost guide and our reviews.
Sand mastic in Wraysbury: local notes
With historic houses such as Frogmore House (about 1.8 miles north-west) nearby, there’s older building stock in the area around Wraysbury as well as newer homes. In older buildings, 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, 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 Sunnymeads station, cracked sand mastic around sash windows lets in the draughts tenants complain about. In the older streets around Church of St Andrew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Wraysbury is about 2 miles north of Egham, in Surrey. Every kind of property in Wraysbury can book us for sand mastic. Every job comes with our one-year guarantee. Our Surrey coverage runs to 395 places, and Wraysbury is one of them. We also work in Reading, around 18 miles away.
Jobs for sand mastic in TW19 works the same way as everywhere else we cover. That includes homes and businesses on High Street, Station Road and Waylands and the roads around them. Neighbouring places we cover for sand mastic include Sunnymeads (1 mile north), Old Windsor (1 mile west), Hythe End (1 mile south-east), Horton (1 mile north-east) and Bishopsgate (2 miles south-west). We also work in nearby towns such as Guildford (15 miles south), Woking (10 miles south), Camberley (11 miles south-west), Epsom (15 miles south-east), Ewell (15 miles south-east) and Walton-on-Thames (8 miles south-east).
Around Wraysbury
Around Wraysbury, our work takes us to homes and buildings near The Perserverance Public House, Churchmead School and Arthur Jacob Nature Reserve, among other places. The closest station to Wraysbury is Sunnymeads station, roughly 0.8 miles north of the centre. Other landmarks nearby include King Edward VII Hospital (2.5 miles north-west) and Berkshire Yeomanry Museum (2.3 miles west). The countryside around Wraysbury includes St Ann's Hill and Staines Reservoirs.