Hampshire · England
Laverstoke Sand Mastic
Sand mastic for Laverstoke, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
- Cement or filler used on old window joints that has cracked
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Landlords and letting agents in Laverstoke can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Sand mastic for homes and businesses in Laverstoke
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. Common call-outs are for tired mastic found when preparing windows for paint and draughts and rain around sash boxes, across stone surrounds, brick reveals and sash and case windows.
Around Laverstoke, 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.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Place
- Laverstoke (RG28)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
When something else is needed
A few problems are outside what sealant work can do:
- Broken panes
- Masonry that needs repairing
- Sashes that rattle, stick or won’t open
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
What we seal
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Brick reveals
- Timber door frames
- Tenement windows
Laverstoke homes and the weather
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Whitchurch (Hampshire) station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as Testbourne Community School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Laverstoke is about 8 miles east of Andover, in Hampshire. Across the RG28 area, our applicators can take on sand mastic. We cover 683 towns and villages across Hampshire, from the larger towns to small villages. There’s also a page for Reading, about 20 miles away.
We cover every part of RG28 for sand mastic. That includes homes and businesses on Laverstoke Lane and Florence Portal Close and the roads around them. We also cover the places around Laverstoke: Freefolk (1 mile north-west), Wells-in-the-Field (1 mile west), Southington (1 mile north-east), Whitchurch (2 miles west) and Overton (2 miles north-east). Further out, we also cover Basingstoke (9 miles east), Winchester (12 miles south), Andover (8 miles west), Alton (15 miles east), Tadley (11 miles north-east) and Hook (15 miles east).
Landmarks near Laverstoke
Laverstoke’s nearest station is Whitchurch (Hampshire) station, about 1.7 miles west.
FAQs for Laverstoke
Can you help a landlord with a rental near Whitchurch (Hampshire) station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
Is Laverstoke within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you guarantee sand mastic work?
Our 12-month guarantee covers every job.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Where are you based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will explain our choice.
What we are called out for in Laverstoke
Rain on the window surround works into any crack and pushes it out. Windows facing the weather tend to go first.
People normally contact us after spotting something like this:
- Draughty sash windows at the surround
- Mastic dropping out of the joint
- Mastic round period door frames that has failed
- Gaps where the frame meets the masonry
If you live in an older home near St Nicholas' Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Whether you can choose the colour
- How long the guarantee is
- How hidden problems are handled
- Who does the work, and how experienced they are
What we do, step by step
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work starts. The work normally takes anything from a few hours to a full day, depending on how many windows. Somewhere like Laverstoke needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Let us know about parking restrictions
How to get a quote
We quote each job on its own. Just phone 0345 464 0079 or drop us an email with the details, and pictures are welcome.
Advice
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Clear gutters so water doesn’t pour onto the windows
- Ask us before painting near the mastic
- Inspect the joints round the windows every year or so
- Sort the mastic before the decorators arrive
Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.
An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.
Surface by surface
Sash and case windows
Most of our sand mastic work is on sash windows. We renew the mastic round each box.
Timber door frames
Round a period front door, sand mastic gives the right look.