Hampshire · England
Langrish Sand Mastic
Sand mastic for Langrish, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Weathered mastic on the most exposed windows
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
Sand mastic in Langrish
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. We work on brick reveals, period & listed homes and timber door frames, and common reasons people get in touch are old cement repairs round a window that have failed and tired mastic found when preparing windows for paint.
Mastic can only go onto a dry, clean joint, so window work in Langrish is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Every job comes with a one-year guarantee.
- Where
- Langrish (GU32)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Period and listed homes
Many older homes were built with sand mastic round the windows. If your home is listed, ask your local planning authority about consent.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Also near Langrish
More services for Langrish
How to look after the new joints
Simple care keeps the joints in good condition. We recommend:
- Ask the planning authority about consent for listed or conservation-area homes
- Check the mastic when you check the paintwork
- Plan mastic work ahead of painting
- Ask us before painting near the mastic
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.
Sand mastic in Langrish: local notes
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.
For site and facilities teams at buildings such as Langrish Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Petersfield station, any sash windows need sound mastic to keep draughts and rain out. If you live in an older home near Church of St John the Evangelist, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Langrish is about 3 miles west of Petersfield, in Hampshire. Jobs in Langrish get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Langrish is one of 683 towns and villages in Hampshire where we work. You can also see our page for Portsmouth, roughly 14 miles from Langrish.
We cover every part of the GU32 postcode area for sand mastic. Whether your property is on Reeds Meadow, Winchester Road and The Close or a nearby road, we can help. Other places close to Langrish include Froxfield Green (1 mile north), Stroud (1 mile east), High Cross (2 miles north), Petersfield (3 miles east) and Steep (3 miles north-east). Within a short drive, we also cover Winchester (14 miles west), Havant (10 miles south), Fareham (14 miles south-west), Horndean (7 miles south), Alton (10 miles north) and Hedge End (15 miles south-west).
Local landmarks in Langrish
Typical jobs here are in homes near The Petersfield School. For rail, the closest station is Petersfield station, roughly 2.3 miles east of the centre. Well-known places in the area include Clanfield Earthwork (4.3 miles south) and Bear Museum (2.7 miles east). For a walk, there’s Shutts Copse and Pidham Hill.
Questions from Langrish
Do you work for landlords with property near Petersfield station?
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.
Can you do sand mastic in Langrish?
Yes. Our work covers London and the South East, and Langrish is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
How long does sand mastic take to go off?
Not right away. It skins first and hardens fully later and we will give you an idea for your job.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Do you have insurance?
Yes, we are fully insured for every job we do.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
How the visit works
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. In total, it generally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Langrish, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
Ask for a quote
We don’t publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or send us an email.
Advice
Why act early in Langrish
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Around Langrish, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Anti-fungal silicone where joints get wet
- 180+ five-star Google reviews
- A 12-month guarantee on all work
- More than 20 years in sealant work
See our cost guide and what customers say.
Landlord and commercial work in Langrish
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
What we cannot put right
To be straight with you, there are a few things sealant will not fix:
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
- Crumbling stone or brickwork round the window
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Tenement windows
- Timber door frames
- Brick reveals
DIY sealant or a professional job?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.