Hampshire · England
Sand Mastic in Bishop's Waltham
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Bishop's Waltham. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Old cement repairs round a window that have failed
- Gaps between timber frames and stone or brick
- Draughts and rain around sash boxes
The process
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a single window, longer for several, and the area is left clean. Parking around Bishop's Waltham is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check each window surround and the condition of the joint.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Before we arrive
- Try not to wet indoor joints just before the visit
- Clear the area around the work
- Let us know about parking restrictions
How to get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.
Advice
How we handle sand mastic in Bishop's Waltham
Across Bishop's Waltham, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand for a neat, traditional finish. We work on period & listed homes, stone surrounds and tenement windows, and the jobs we see most are failed mastic on an exposed elevation and window mastic to renew ahead of painting.
In a smaller place like Bishop's Waltham, some walls face open ground and catch the full force of the weather. The mastic around frames on those walls tends to age faster.
You get a one-year guarantee, the same in Bishop's Waltham as everywhere else we work.
- Location
- Bishop's Waltham (SO32)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Common questions in Bishop's Waltham
Do you cover Bishop's Waltham for sand mastic?
Yes, Bishop's Waltham is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near Botley station?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can go on one quote. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
How long does the job take?
As a guide, most jobs take a few hours for a single window, longer for several. Bigger jobs take longer, and we’ll tell you how long to expect.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
What’s sand mastic made of?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.
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.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice.
What affects the cost of sand mastic
The quote reflects the job in front of us. We take into account:
- The number of rooms or windows
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will explain what it covers.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- The address or postcode of the job
- The problem you’ve noticed
- If it’s domestic, commercial or a hotel
- The rough size of the job
To get 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 work begins.
How the job changes by surface
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Stone surrounds
The stone is treated with care when the old mastic comes out.
Towns and villages near Bishop's Waltham
Other services in Bishop's Waltham
Windows and doors in Bishop's Waltham
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you let a flat or house near Botley station, any sash windows need sound mastic to keep draughts and rain out. Schools such as Bishop's Waltham Junior School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Church of St Peter, the joint between an old wall and a newer frame is normally the first place rain gets in.
Bishop's Waltham is about 5 miles north-east of Hedge End, in Hampshire. If you need sand mastic in Bishop's Waltham, it’s easy to get a quote: please ring 0345 464 0079 or email us. We’re based in Crawley and cover Hampshire, Bishop's Waltham included. Bishop's Waltham is one of 683 places in Hampshire where we work for sand mastic. You can also see our page for Southampton, about 8 miles away.
Every address in SO32 is within our area for sand mastic, from the main roads to the quietest streets. You will find streets such as High Street, St Georges's Square and Station Road. Bishop's Waltham sits on or near the B2177 and B3035, so getting to you is simple. We also cover the places around Bishop's Waltham: Ashton (1 mile north), Waltham Chase (2 miles south), Durley Street (2 miles west), Wintershill (2 miles west) and Upham (2 miles north-west). We also work in nearby towns such as Winchester (8 miles north-west), Gosport (11 miles south), Havant (12 miles south-east), Eastleigh (6 miles west), Fareham (7 miles south) and Horndean (9 miles east).
Landmarks near Bishop's Waltham
In Bishop's Waltham, that means homes and buildings near Swanmore College of Technology and The Crown Hotel and the streets around them. The nearest railway station is Botley station, about 3.3 miles south-west of the centre. Other landmarks nearby include Bishop's Waltham Museum (less than half a mile south-west) and Moorgreen Hospital (5.1 miles west). Green spaces nearby include Bishops Waltham Branch LNR and Beacon Hill.
DIY sealant or a professional job?
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.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Why act early in Bishop's Waltham
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new work lasts. Around Bishop's Waltham, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Homes, businesses and hotels
- Every job guaranteed for a year
- ARBOMaster approved applicator
- Neat joints and a tidy finish
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Broken panes
- Sash cords, weights and draught-proofing of the sashes
- Damaged stone surrounds
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Stone surrounds
- Tenement windows
- Sash and case windows
- Timber door frames
- Brick reveals
- Period & listed homes
Work for landlords, hotels and businesses
For anyone letting property in or around Bishop's Waltham, several properties can be quoted together. Just tell us the addresses and what each one needs.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.