Hampshire · England
Sand Mastic in Owslebury Bottom
Problem with your window and door surrounds in Owslebury Bottom? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Modern sealant on a period surround
- Old sand mastic that has cracked, crumbled or fallen out
- Cement or filler used on old window joints that has cracked
How we handle sand mastic in Owslebury Bottom
A silicone bead around a sash window can look out of place and is not always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you have draughts and rain around sash boxes and mastic that needs renewing before redecorating, we can put it right.
In a village or hamlet like Owslebury Bottom, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Where
- Owslebury Bottom (SO21)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

How the job changes by surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It gives a traditional finish.
Timber door frames
Doors face weather and wear and the mastic can crack early. It’s renewed by hand.
Sand mastic in Owslebury Bottom: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Shawford station, older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Owslebury Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of St Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Owslebury Bottom is about 4 miles south-east of Winchester, in Hampshire. Wherever you are in the SO21 postcode area, we can carry out sand mastic at your property. Owslebury Bottom is one of 683 towns and villages in Hampshire we cover. We also work in Southampton, around 9 miles away.
Work in SO21 is quoted and booked the same way as anywhere else. Neighbouring places we cover for sand mastic include Owslebury (1 mile south), Baybridge (1 mile south-east), Morestead (1 mile north), Hensting (1 mile south-west) and Lane End (3 miles east). Further out, we also cover Winchester (4 miles north-west), Gosport (15 miles south), Eastleigh (5 miles south-west), Fareham (12 miles south), Horndean (13 miles south-east) and Totton (12 miles south-west).
Landmarks near Owslebury Bottom
Around Owslebury Bottom, our work takes us to homes and buildings near Ship Inn, among other places. The closest station to Owslebury Bottom is Shawford station, about 2.7 miles west of the centre. Other landmarks nearby include The Gurkha Museum (3.5 miles north-west) and Wolvesey Castle (3.6 miles north-west). Green spaces nearby include Hockley Meadows and Twyford Down.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Crumbling stone or brickwork round the window
- Decisions on consent for listed homes
- Decayed frames that need repair
If you’re not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Joints and surfaces we work on
- Period & listed homes
- Brick reveals
- Tenement windows
- Timber door frames
- Stone surrounds
- Sash and case windows
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a single window, longer for several. Somewhere like Owslebury Bottom needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Let us know if you’ve seen damp or leaks
- Keep children and pets away from the work area
- Move anything stored near the joints
Getting a quote
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.
Related advice
Aftercare tips
So the new joints stay in good condition:
- Keep modern sealant off the mastic
- Sort the mastic before the decorators arrive
- Clear gutters so water does not pour onto the windows
- Have rotten timber repaired before new mastic goes in
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
Quotes for sand mastic in Owslebury Bottom
We quote each job individually. These are the things that affect it:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- Mould in or behind the old joints
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we will explain the quote if you ask.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Where the job is, and your postcode
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- What’s wrong with the joints now
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or drop us an email.
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Towns and villages near Owslebury Bottom
What else we do in Owslebury Bottom
Common questions in Owslebury Bottom
Do you cover smaller places like Owslebury Bottom?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Shawford station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Are you fully insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
What do you need from me for a quote?
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.
Is consent needed for window work on a listed home?
Check with your local planning authority. They’ll tell you if consent is needed for work to your windows.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
