Hampshire · England
Townsend Sand Mastic
Window and door surrounds in Townsend need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Modern sealant on a period surround
- Old sand mastic that has cracked, crumbled or fallen out
- Wind and rain getting in round a sash window
Sand mastic for homes and businesses in Townsend
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditional guidance is not to paint over it and we will advise if you are redecorating. Typical jobs include failed mastic on an exposed elevation and mastic that needs renewing before redecorating, across brick reveals, tenement windows and sash and case windows.
Around Townsend, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
Your job is guaranteed for a year, as with all our work.
- Location
- Townsend (RG26)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we can’t put right
We won’t take on work that will not last, so these are the limits:
- Timber that has rotted
- Sashes that rattle, stick or won’t open
- Whether work needs listed building consent
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Stone surrounds
- Sash and case windows
- Brick reveals
- Timber door frames
- Tenement windows
- Period & listed homes
Townsend questions
Can you do sand mastic in Townsend?
Yes, Townsend is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
Is Townsend within the area you cover?
Yes, Townsend is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can tenants book the work?
We’re happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Can sand mastic be painted?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Is consent needed for window work on a listed home?
Check with your local planning authority. They decide whether consent is needed for work to your windows.
What should I tell you?
The location, the problem and the rough size of the job. Photos by email help too.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. We can talk about working times when we quote.
Places near Townsend
Also in Townsend
How the visit works
When we arrive, we start by going over the job with you. Surfaces next to the work are protected before any work begins. The work normally takes a few hours per window, depending on the condition of the joints. Somewhere as small as Townsend, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or email us.
Advice
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
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 that we can handle for you.
When to call us in Townsend
Water gets into small cracks in the mastic and pushes it out. Exposed elevations normally fail first.
If you can see any of these, it’s time to have the joints looked at:
- A silicone bead on a sash window that spoils the look
- Gaps where the frame meets the masonry
- Weathered mastic on the most exposed windows
- Patchy fillers round a sash window
If you let a flat or house near Midgham station, older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- Whether they seal over old material or remove it
- What happens if the job turns out different
- Whether VAT is included
- Which sealant they’ll use, and why
Quotes for sand mastic in Townsend
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How easy the joints are to reach
- Mould in or behind the old joints
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- Photos by email, if that’s easy
If you’re in Townsend and need sand mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Go gently near the mastic when preparing windows
- Ask us before painting near the mastic
- Make sure water runs off the sill
- Look over the window mastic once a year
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
What sand mastic looks like in Townsend
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like The Vyne (about 4.7 miles east) are a reminder that the area around Townsend 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.
In the older streets around Church of St Catherine, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as The Hurst School, its window and door frames need their mastic kept sound, just like a home’s.
Townsend is about 3 miles south-west of Tadley, in Hampshire. Wherever you are in the RG26 postcode area, we cover sand mastic for homes and businesses. Townsend is one of 683 places in Hampshire we cover. There’s also a page for Reading, about 13 miles away.
Here we cover the RG26 postcode area for sand mastic. We also cover Wolverton Common (1 mile north), Axmansford (2 miles north), West Heath (2 miles east), Ramsdell (2 miles south-east) and Baughurst (2 miles north-east). We also work in nearby towns such as Basingstoke (6 miles south-east), Andover (15 miles south-west), Alton (15 miles south-east), Tadley (3 miles north-east), Hook (11 miles east) and Popley (5 miles south-east).
Landmarks near Townsend
Typical jobs here are in homes near The George And Dragon Public House and the streets around them. For rail, the closest station is Midgham station, roughly 4.9 miles north. Other landmarks nearby include Park Prewett Hospital (4.5 miles south-east).