Hampshire · England
Sand mastic for sash & case windows in Hartfordbridge, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Hartfordbridge and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Crumbling sand mastic round a window
- Open joints round the window box
- Silicone on a period window that looks wrong
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Sand mastic for homes and businesses in Hartfordbridge
Sand mastic does not last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. If you’re dealing with crumbling sand mastic round a window and cement or filler used on old window joints that has cracked, we can help, on tenement windows, timber door frames and period & listed homes alike.
Mastic can only go onto a dry, clean joint, so window work in Hartfordbridge is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Hartfordbridge (RG27)
- Wider area
- Hampshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Nearby places to Hartfordbridge
Also in Hartfordbridge
Hartfordbridge homes and the weather
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you live in an older home near All Souls Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Oakwood Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Hartfordbridge is about 3 miles south-west of Yateley, in Hampshire. Homes, rented property, offices and hotels in Hartfordbridge can book us for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. Hartfordbridge is one of 683 places in Hampshire we cover for sand mastic. There’s also a page for Reading, roughly 10 miles from Hartfordbridge.
Postcode districts we cover here for sand mastic: RG27. We cover properties on London Road, Hulfords Lane and Star Hill and the roads around them. We also cover Eversley Centre (2 miles north), Eversley Cross (2 miles north-east), Lower Common (3 miles north), Eversley (3 miles north) and Yateley (3 miles north-east). Further out, we also cover Basingstoke (10 miles west), Farnborough (5 miles east), Fleet (4 miles south-east), Aldershot (7 miles south-east), Alton (12 miles south) and Tadley (11 miles west).
Around Hartfordbridge
Around Hartfordbridge, our work takes us to homes and buildings near The Cricketers pub and the streets around them. The nearest railway station is Winchfield station, roughly 2.3 miles south of the centre. A little further out are West Green House Agricultural Museum (2 miles south-west) and Hart Shopping Centre (3.2 miles south-east). Not far away are Fleet Pond Nature Reserve and Hitches Hill.
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours per window, depending on the condition of the joints. Somewhere as small as Hartfordbridge, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Related advice
What happens if it’s left?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. Where a wall is exposed, as many are in small places like Hartfordbridge, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
- Neat joints and a tidy finish
- Approved under the ARBOMaster scheme
Read our cost guide or customer reviews.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Find out about consent before window work on a listed home
- Ask a joiner to look at soft timber first
- Plan mastic work ahead of painting
- Do not paint over the new mastic
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
Common problems we fix in Hartfordbridge
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
Any of these means the joints need attention:
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
- Mastic that needs renewing before redecorating
- Silicone on a period window that looks wrong
Rented homes near Winchfield station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- Whether the sealant suits the joint
- The length of the guarantee
- Are they insured?
- Which colour the sealant will be
What we can’t put right
Sealant is not the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- Masonry that needs repairing
- Sashes that rattle, stick or won’t open
- Broken panes
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Where we work in Hartfordbridge
- Stone surrounds
- Period & listed homes
- Brick reveals
- Timber door frames
- Tenement windows
- Sash and case windows
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
Questions from Hartfordbridge
Do you cover smaller places like Hartfordbridge?
Yes, Hartfordbridge is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Winchfield station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or send us an email.
How long does sand mastic take to harden?
It takes a while. It skins first and hardens fully later, and we will tell you what to expect.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
Where are you based?
Our base is Crawley. We work across South East England, London and Scotland.
How much does sand mastic cost in Hartfordbridge?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.