Hampshire · England
Sand Mastic in Sandleheath
Window and door surrounds in Sandleheath need attention? We remove the old material, prepare the joints and seal them properly.
- Cracked mastic round a front door frame
- Patchy fillers round a sash window
- Tired mastic found when preparing windows for paint
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Sandleheath, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- 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.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
- Mention any sign-in or site rules at work premises
Getting a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or drop us an email.
Advice
Sand mastic in Sandleheath
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 and built up by hand. On older homes, it suits the building far better than silicone. We work on tenement windows, sash and case windows and stone surrounds, and the jobs we see most are open joints round the window box and gaps round a timber door in stone or brick.
Outdoor sealant needs dry, clean surfaces, so work on frames around Sandleheath is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
There’s a 12-month guarantee on every job, whatever its size.
- Where
- Sandleheath (SP6)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Renew mastic before redecorating the windows
- Ask us before painting near the mastic
- Do not run silicone over sand mastic
- 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. Once it fails, water can sit against the timber, which can lead to rot.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What sealant work can’t fix
New sealant cannot fix everything, and we will tell you before work begins. Sealant will not put right:
- Sash cords, weights and draught-proofing of the sashes
- Decayed frames that need repair
- Crumbling stone or brickwork round the window
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Brick reveals
- Stone surrounds
- Tenement windows
- Sash and case windows
- Timber door frames
- Period & listed homes
Do you need sand mastic in Sandleheath?
Previous repairs in cement or silicone often trap water or crack away. They don’t suit the joint, and they normally need raking out.
People generally contact us after spotting something like this:
- Gaps between timber frames and stone or brick
- Failed mastic on an exposed elevation
- Crumbling sand mastic round a window
- A silicone bead on a sash window that spoils the look
If you look after a building such as The Burgate School and Sixth Form, its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- Is VAT in the price?
- Who turns up on the day
- Which colour the sealant will be
- What guarantee comes with the work
Surface by surface
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
What else we do in Sandleheath
Your questions about sand mastic in Sandleheath
Will you come out to Sandleheath?
Yes, Sandleheath is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is Sandleheath in your area for sand mastic?
Yes. Our work covers London and the South East, and Sandleheath is part of that. You can call 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear quote.
Are you insured?
Yes, we’re fully insured for every job we do.
Are you ARBOMaster approved?
Yes. We are approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Frames and glazing around Sandleheath
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Breamore House (about 3.1 miles north-east) are a reminder that the area around Sandleheath has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
For an older house near a landmark such as Sandleheath Uniting Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Sandleheath is in Hampshire. From the centre of Sandleheath to the outskirts, sand mastic is available for homes and businesses alike. Across Hampshire, we cover 683 places, Sandleheath among them. Southampton is on our list too, about 19 miles from Sandleheath.
Jobs for sand mastic in SP6 works the same way as everywhere else we cover. Local streets include Elms Close, Main Road and Old Brickyard Road. Nearby, we also carry out sand mastic in Ashford (1 mile east), Alderholt (1 mile south), Damerham (1 mile north-west), Rockbourne (2 miles north) and Broxhill (2 miles south-west). We also work in nearby towns such as Totton (14 miles east), Romsey (15 miles east), New Milton (14 miles south-east), Ringwood (6 miles south), Barton on Sea (15 miles south-east) and Ashley (14 miles south-east).
Near you in Sandleheath
Well-known places in the area include Fordingbridge Museum (1.5 miles east) and Godshill Castle Hill (2.7 miles east). Green spaces nearby include Blashford Lakes.
Why act early in Sandleheath
Draughts round a sash window are not always the sashes. Gaps between the frame and the wall can be just as bad and new mastic seals them. Around Sandleheath, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll go through it with you.
What you get with us
- Fully insured
- 180+ five-star Google reviews
- Sanitary silicone with an anti-fungal additive in wet areas
- Arbo and Everbuild products
Read how sealant jobs are priced or our reviews.