Hampshire · England
Sand mastic for sash & case windows in Lockerley, Hampshire
Sand mastic in Lockerley from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic round period door frames that has failed
- Failed mastic on an exposed elevation
- Gaps where the frame meets the masonry
DIY sealant or a professional job?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
About our sand mastic in Lockerley
Across Lockerley, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. Typical jobs include gaps where the frame meets the masonry and mastic round period door frames that has failed, on timber door frames, period & listed homes and stone surrounds.
Somewhere as small as Lockerley, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
The work is covered for a year after we finish. If there’s a problem with it, please phone 0345 464 0079 or drop us an email.
- Location
- Lockerley (SO51)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Different surfaces, different methods
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. We shape it by hand to follow the stone.
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.
Aftercare tips
To keep the joints looking good and working properly:
- Keep sills and gutters clear so water drains away
- Have rotten timber repaired before new mastic goes in
- Plan mastic work ahead of painting
- Inspect the joints round the windows every year or so
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber, which can lead to rot.
Also near Lockerley
Also in Lockerley
Leave it or put it right?
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. Where a wall is exposed, as many are in small places like Lockerley, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us.
Why Lockerley clients choose us
- ARBOMaster approved applicator
- Full insurance on every job
- 4.9 on Google from 180+ five-star reviews
- One-year guarantee on every job
See what affects the cost and our reviews.
Common questions in Lockerley
Do you cover Lockerley for sand mastic?
Yes, Lockerley is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.
Is Lockerley within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can new sealant go over the old?
No, it will not last. It may look fine at first, but the new layer lifts away from the old one. The old sealant has to come out completely.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do you work for landlords and businesses?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across Hampshire.
What should I tell you?
Tell us what needs doing and where, with pictures by email if possible. If we need more, we’ll ask.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic generally suits period timber windows best. On modern frames, we’d normally use a flexible sealant, and we’ll explain why.
Is there any odour?
Some sealants have a smell while they cure. Ventilation helps.
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on how much there is to do. Somewhere as small as Lockerley, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Tell us if parking is tricky
- Mention any sign-in or site rules at work premises
- Move anything stored near the joints
How to get a quote
Want a quote for sand mastic? Please call 0345 464 0079 or drop us an email with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Related advice
Frames and glazing around Lockerley
With historic houses such as Mottisfont Abbey (about 1.8 miles east) nearby, there’s older building stock in the area around Lockerley as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Rainfall in the South East is lower than in much 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 Mottisfont & Dunbridge station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. If you live in an older home near Church of St John, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Lockerley Church of England Endowed Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Lockerley is about 5 miles north-west of Romsey, in Hampshire. For sand mastic in and around Lockerley, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover Hampshire. Lockerley is one of 683 towns and villages in Hampshire we cover for sand mastic. There’s also a page for Southampton, about 11 miles away.
We work across SO51 for sand mastic. Streets in the area include Butlers Close, Oval Road and Clem's Way. We also cover Carter's Clay (1 mile south-east), Dunbridge (1 mile east), Mottisfont (2 miles east), Kimbridge (2 miles east) and Awbridge (2 miles south-east). Larger places within reach include Winchester (11 miles east), Eastleigh (11 miles south-east), Andover (13 miles north), Totton (8 miles south), Chandler's Ford (9 miles east) and Hedge End (14 miles south-east).
Around Lockerley
In Lockerley, that means homes and buildings near Kings Arms Public House, among other places. For rail, the closest station is Mottisfont & Dunbridge station, roughly 1.2 miles east of the centre. Nearby you’ll also find Romsey Community Hospital (4.9 miles south-east).
Quotes for sand mastic in Lockerley
The quote reflects the job in front of us. We take into account:
- Any mould that needs treating
- Which sealant suits the joint
- The size of the job
- How many rooms, windows or areas are involved
Combining jobs into one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
What to tell us for a quote
Before you ask for a quote, have a think about:
- The type of property
- Where the property is
- Any previous sealing or DIY work
- How many joints, rooms or windows are involved
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before we start.