Hampshire · England
Hartley Wespall Sand Mastic
Professional sand mastic in and around Hartley Wespall, with old sealant always removed completely.
- Draughty sash windows at the surround
- Window mastic to renew ahead of painting
- Mastic round period door frames that has failed
About our sand mastic in Hartley Wespall
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we will advise if you are redecorating. If you are dealing with mastic round period door frames that has failed and draughty sash windows at the surround, we can help, on period & listed homes, timber door frames and sash and case windows alike.
Around Hartley Wespall, 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 get a one-year guarantee, the same in Hartley Wespall as everywhere else we work.
- Where
- Hartley Wespall (RG27)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Why it’s worth doing now in Hartley Wespall
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. Where a wall is exposed, as many are in small places like Hartley Wespall, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Doing several joints on one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Why Hartley Wespall customers choose us
- Experience in homes, commercial sites and hotels
- Quality sealants from Arbo and Everbuild
- Any old sealant cut out fully, not covered over
- We are fully insured
Take a look at how sealant jobs are priced or our reviews.
Towns and villages near Hartley Wespall
Other services in Hartley Wespall
How it works
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Hartley Wespall, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Every job is quoted individually. Simply call 0345 464 0079 or send us an email and describe the job.
Read more
Do you need sand mastic in Hartley Wespall?
Water gets into small cracks in the mastic and pushes it out. Exposed elevations normally fail first.
Most people get in touch when they notice something like this:
- Open joints round the window box
- Tired mastic found when preparing windows for paint
- Old cement repairs round a window that have failed
- Gaps round a timber door in stone or brick
Homes close to Church of St Mary the Blessed Virgin include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- The length of the guarantee
- Who turns up on the day
- Whether VAT is included
- How the joint is cleaned and prepared
What sand mastic looks like in Hartley Wespall
Historic houses like Stratfield Saye House (about 2.3 miles north) are a reminder that the area around Hartley Wespall 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’s traditional sand mastic. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Bramley (Hants) station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. Managing a site like Sherfield School? Then the mastic around its windows and doors needs looking after like any other building’s.
Hartley Wespall is about 6 miles north-east of Basingstoke, in Hampshire. Homes, rented property, offices and hotels in Hartley Wespall is covered for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. We cover 683 towns and villages across Hampshire. Reading is on our list too, about 9 miles from Hartley Wespall.
Our applicators cover all of the RG27 postcode area for sand mastic. That includes homes and businesses on Rotherwick Lane and Mill Lane and the roads around them. We also cover the places around Hartley Wespall: Spanish Green (1 mile north-west), Sherfield on Loddon (1 mile west), Church End (2 miles south-west), Bramley Green (2 miles west) and Stratfield Saye (3 miles north). Larger places within reach include Basingstoke (6 miles south-west), Farnborough (10 miles east), Fleet (8 miles east), Aldershot (11 miles south-east), Alton (11 miles south) and Yateley (7 miles east).
Around Hartley Wespall
We work in homes and buildings around The Cricketers Public House, among other places. The closest station to Hartley Wespall is Bramley (Hants) station, about 2.8 miles west. Nearby you will also find West Green House Agricultural Museum (3.1 miles east) and Basingstoke and North Hampshire Hospital (5.3 miles south-west). Green spaces nearby include The Mill Field.
Questions from Hartley Wespall
I let a flat near Bramley (Hants) station. Can you help?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.
Will you come out to Hartley Wespall?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will there be a smell?
Possibly a little. It fades as the sealant cures.
Is it possible to take out silicone and use sand mastic instead?
Usually, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
How long will you be here?
A typical job takes a few hours for a single window, longer for several, including preparation and clearing up. We will confirm how long when we quote.
Do you work for hotels and businesses?
Yes, regularly. We can plan bigger jobs in stages.
What exactly is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
What affects the cost of sand mastic
You’ll get a clear quote before we start. It’s based on:
- The product the joint needs
- When we can work, for business premises
- Whether the work is at height
- The number and length of the joints
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
If you are in Hartley Wespall and need sand mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Sashes that need overhauling
- Timber that has rotted
- Decisions on consent for listed homes
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Where we work in Hartley Wespall
- Timber door frames
- Stone surrounds
- Tenement windows
- Brick reveals
- Sash and case windows
- Period & listed homes
For landlords and businesses
We also work for property managers and facilities teams in Hartley Wespall and across Hampshire. We can quote a run of properties together, and we’re fully insured for the work.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
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. All the old material has to come out first.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
