Surrey · England
Shepperton Sand Mastic
Sand mastic for Shepperton and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
- Mastic worn away on windows facing the weather
Landlords, agents and businesses in Shepperton
For anyone letting property in or around Shepperton, several properties can go on one quote. Send us the addresses and the work at each.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
How we handle sand mastic in Shepperton
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you have patchy fillers round a sash window and mastic round period door frames that has failed, we can put it right.
Houses in smaller places like Shepperton 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.
We stand behind the work with a one-year guarantee, so you’re covered after we’ve gone.
- Place
- Shepperton (TW17)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Shepperton
What else we do in Shepperton
The process
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours for a single window, longer for several. A visit to Shepperton is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling 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.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- On commercial sites, let us know about site rules
- Plan for the work area to be out of bounds to pets and children
How to get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or send us an email.
Read more
Do you need sand mastic in Shepperton?
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
Keep an eye out for any of the following:
- Silicone on a period window that looks wrong
- Crumbling sand mastic round a window
- Window mastic to renew ahead of painting
- Weathered mastic on the most exposed windows
Schools such as Thamesmead School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- What product goes in the joint
- Are they insured?
- Whether all the old sealant comes out first
- What happens if the job turns out different
When it is not the sealant
New sealant can’t fix everything, and we will tell you before work begins. It won’t solve:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Decisions on consent for listed homes
- Sashes that need overhauling
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Period & listed homes
- Tenement windows
- Timber door frames
- Brick reveals
- Stone surrounds
- Sash and case windows
What sand mastic looks like in Shepperton
With historic houses such as The Homewood (about 3.8 miles south-east) nearby, there’s older building stock in the area around Shepperton as well as newer homes. Where a home is older, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as Church of St Nicholas, the joint between an old wall and a newer frame is normally the first place rain gets in. Letting a property close to Shepperton station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Shepperton is about 1 mile north of Weybridge, in Surrey. Every kind of property in Shepperton is covered for sand mastic. The work is guaranteed for a year. Our area takes in 395 places across Surrey. You can also see our page for London, about 17 miles away.
Here we cover the TW17 postcode area for sand mastic. We cover properties on High Street, Station Road and Manygate Lane. Shepperton is on the B3366, which makes it straightforward to reach with everything needed for sand mastic. We also cover the places around Shepperton: Weybridge (1 mile south), Walton-on-Thames (2 miles south-east), St George's Hill (2 miles south), Burwood Park (2 miles south) and Hersham (2 miles south-east). Larger places within reach include Guildford (12 miles south-west), Woking (8 miles south-west), Camberley (13 miles west), Epsom (8 miles south-east), Ewell (9 miles east) and Egham (5 miles north-west).
What’s near Shepperton
Around Shepperton, our work takes us to homes and buildings near Sunbury Park, The Anchor pub and St Nicholas CofE Primary School. There’s a railway station in Shepperton itself: Shepperton station. Nearby you’ll also find No. 2 New Zealand General Hospital (0.9 miles south-east) and Kempton Steam Museum (2.8 miles north-east). For a walk, there’s Kempton Park Reservoirs and St Ann's Hill.
Looking after it afterwards
Looking after new joints is easy:
- Ask a joiner to look at soft timber first
- Plan mastic work ahead of painting
- Keep modern sealant off the mastic
- Take care around the mastic when scraping paint
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Why deal with it now?
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Homes in smaller places like Shepperton can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. We give a clear quote before work begins.
Why us?
- ARBOMaster approved applicator
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
Read what affects the cost and what customers say.
Shepperton questions
Is Shepperton within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Shepperton station?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Can new sealant go over the old?
No. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Can you match the sealant colour?
We help you choose a colour that suits. The choice depends on the product the joint needs.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
How long does the job take?
It depends on the size of the job, but as a guide it takes anything from a few hours to a full day, depending on how many windows. We’ll tell you when we quote.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will talk you through it.
Different surfaces, different methods
Timber door frames
Round a period front door, sand mastic gives the right look.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.