Surrey · England
Thorpe Sand Mastic
Sand mastic for Thorpe and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- A silicone bead on a sash window that spoils the look
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
How to look after the new joints
So the new joints stay in good condition:
- Check with your local planning authority if your home is listed
- Avoid heavy scraping on the mastic joint
- Keep sills and gutters clear so water drains away
- Sort the mastic before the decorators arrive
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Sand mastic in Thorpe, done properly
We work across Thorpe renewing sand mastic on sash windows and doors. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. If you have old cement repairs round a window that have failed and window mastic to renew ahead of painting, we can help.
Mastic can only go onto a dry, clean joint, so window work in Thorpe is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job.
- Place
- Thorpe (TW20)
- Region
- Surrey
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What happens if it’s left?
Not every filler suits an old window surround. Sand mastic matches what was there, which can matter on listed and conservation-area homes. Older cottages and farmhouses around Thorpe can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- Fully insured
- Over 20 years’ experience
- A 12-month guarantee on all work
- Anti-fungal silicone where joints get wet
Read what affects the cost and our reviews.
Questions from Thorpe
Do you cover Thorpe for sand mastic?
Yes, Thorpe is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing, and we will send you a clear quote.
Can you help a landlord with a rental near Virginia Water station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you take out the old sealant first?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Is consent needed for window work on a listed home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A DIY attempt does not rule out a professional job. We cut it out and start again.
Sand mastic in Thorpe: local notes
With historic houses such as Botleys Mansion (about 2.5 miles south) nearby, there’s older building stock in the area around Thorpe as well as newer homes. Where a home is older, 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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Virginia Water station? Then any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Thorpe CofE Aided Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Thorpe is about 2 miles south-east of Egham, in Surrey. Thorpe gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Surrey, we cover 395 places, Thorpe among them. Reading is on our list too, about 19 miles from Thorpe.
Our applicators cover all of TW20 for sand mastic and the streets around it. Whether your property is on Village Road, Western Avenue and Midway Avenue or anywhere close by, our applicators can take on the job. Thorpe is on the B388, which makes it straightforward to reach. Other places close to Thorpe include Thorpe Green (1 mile south-west), Stroude (1 mile west), Egham Hythe (1 mile north), Penton Hook (1 mile east) and Virginia Water (1 mile west). We also work in nearby towns such as Guildford (11 miles south), Woking (7 miles south), Camberley (10 miles south-west), Epsom (12 miles south-east), Ewell (13 miles east) and Walton-on-Thames (6 miles east).
What’s near Thorpe
We work in homes and buildings around The Magna Carta School, The Red Lion pub and The American School In England. The nearest railway station is Virginia Water station, roughly 1.4 miles south-west. Nearby you will also find Spelthorne Museum (1.9 miles north-east) and Runnymede Hospital (2.2 miles south). The countryside around Thorpe includes Gracious Pond and Manor Lake.
Also near Thorpe
Other services in Thorpe
Landlord and commercial work in Thorpe
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
When something else is needed
To be straight with you, there are a few things sealant will not fix:
- Cracked or broken glass
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Where we work in Thorpe
- Tenement windows
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Brick reveals
- Timber door frames
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The number of rooms or windows
- How much there is to do
- The old material and how stubborn it is
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- Where the job is, and your postcode
- Any access issues, like height or stairs
- Whether it has been sealed before
For sand mastic in Thorpe, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
How the visit works
We keep the work tidy and contained to the area we are working on, so you can get on with your day. The job normally takes a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. Somewhere as small as Thorpe, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic isn’t 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.
Preparing for the visit
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
- For indoor joints, keep the area dry beforehand if you can
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, phone 0345 464 0079 or send us an email.