Hampshire · England
Sand Mastic in Ossemsley
Sand mastic in Ossemsley from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic that needs renewing before redecorating
- Silicone on a period window that looks wrong
- Gaps between timber frames and stone or brick
Sand mastic in Ossemsley, done properly
Sand mastic skins over fairly quickly but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. Typical jobs include old cement repairs round a window that have failed and gaps where the frame meets the masonry, across period & listed homes, brick reveals and tenement windows.
Around Ossemsley, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All our work is covered by a one-year guarantee, wherever you are in Hampshire.
- Where
- Ossemsley (BH25)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlord and commercial work in Ossemsley
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will give you a quote.
How it works
The work is kept neat and contained to the area we are working on, so you can carry on as normal. Expect the work to take a few hours for a single window, longer for several. Somewhere like Ossemsley needs a little journey planning: 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.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
- Keep pets and children clear of the area while we work
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or email us.
Related advice
FAQs for Ossemsley
Does living near the coast affect sand mastic in Ossemsley?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Is Ossemsley within the area you cover?
Yes. Ossemsley is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Is the work guaranteed?
Our one-year guarantee covers every job, sand mastic included.
Do you have insurance?
Yes. Mr Mastic is fully insured.
What does sand mastic cost?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
What is sand mastic?
Sand plus a binder based on linseed oil. It’s applied by hand and finished to sit neatly against the masonry.
How long does sand mastic take to harden?
A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Why deal with it now?
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. Around Ossemsley, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
What you get with us
- We never seal over old sealant
- Tidy, careful work
- An ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
Take a look at what affects the cost and our reviews.
When to call us in Ossemsley
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint and we normally remove them.
These are the problems we are asked about most:
- Tired mastic found when preparing windows for paint
- Failed mastic on an exposed elevation
- Wind and rain getting in round a sash window
- Gaps between timber frames and stone or brick
If you live in an older home near St John, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Comparing quotes
- Are they insured?
- Whether the sealant suits the joint
- Is VAT in the price?
- What guarantee comes with the work
More services for Ossemsley
Can I do it myself?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Frames and glazing around Ossemsley
Ossemsley is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
Schools such as Ballard School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Rented homes near New Milton station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Ossemsley is about 2 miles north of New Milton, in Hampshire. Jobs in Ossemsley get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Ossemsley is one of 683 places in Hampshire we cover for sand mastic. There’s also a page for Southampton, about 15 miles away.
Work in BH25 works the same way as everywhere else we cover. Streets in the area include Green Lane and Ossemsley South Drive, and we cover them all. Other places close to Ossemsley include Bashley (1 mile south-east), Wootton (1 mile north), Tiptoe (2 miles east), Mead End (2 miles east) and Ashley (2 miles south-east). Within a short drive, we also cover Totton (12 miles north-east), Lymington (5 miles east), Hythe (13 miles north-east), Ringwood (7 miles north-west), Barton on Sea (3 miles south) and Dibden Purlieu (12 miles north-east).
Landmarks near Ossemsley
We work in homes and buildings around The Arnewood School and The Rising Sun pub and the streets around them. The closest station to Ossemsley is New Milton station, roughly 1.7 miles south. Nearby you will also find Highcliffe Castle (3.5 miles south-west) and Sammy Miller Motorcycle Museum (1 mile south). Open spaces near Ossemsley include Milford on Sea LNR.
Different surfaces, different methods
Sash and case windows
On a sash window, the mastic joint shows on the outside so we finish it carefully.
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
When it is not the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Masonry that needs repairing
- Decisions on consent for listed homes
- Decayed frames that need repair
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
Surfaces we seal
- Period & listed homes
- Brick reveals
- Tenement windows
- Stone surrounds
- Timber door frames
- Sash and case windows