Hampshire · England
Sand mastic for sash & case windows in Michelmersh, Hampshire
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Michelmersh and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
- Patchy fillers round a sash window
How it works
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work starts. The work generally takes a few hours per window, depending on the condition of the joints. In a small place like Michelmersh, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us if parking is tricky
- Mention if the joints have been sealed before
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
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How we handle sand mastic in Michelmersh
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We work on stone surrounds, sash and case windows and period & listed homes, and common reasons people get in touch are draughts and rain around sash boxes and window mastic to renew ahead of painting.
In a village or hamlet like Michelmersh, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Every job comes with our one-year guarantee, wherever you are in Hampshire.
- Where
- Michelmersh (SO51)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work can’t fix
We won’t take on work that will not last, so these are the limits:
- Damaged stone surrounds
- Cracked or broken glass
- Decisions on consent for listed homes
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Tenement windows
- Brick reveals
- Timber door frames
- Period & listed homes
- Sash and case windows
- Stone surrounds
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
How we quote for sand mastic
Jobs vary more than people expect. What affects the quote:
- The size of the job
- The old material and how stubborn it is
- Mould in or behind the old joints
- The type of sealant required
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Before you ask for a quote, have a think about:
- Where the job is, and your postcode
- A few pictures by email, if you can
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, call 0345 464 0079 or email us.
Sand mastic in Michelmersh: local notes
Historic houses like Mottisfont Abbey (about 1.2 miles north-west) are a reminder that the area around Michelmersh has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.
Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For landlords with property near Mottisfont & Dunbridge station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Michelmersh is about 3 miles north-west of Romsey, in Hampshire. If you need sand mastic in Michelmersh, please ring 0345 464 0079 or drop us an email for a quick quote. We cover Hampshire from our Crawley base, Michelmersh included. We cover 683 towns and villages across Hampshire. Southampton is on our list too, around 9 miles away.
Every address in SO51 is covered for sand mastic. Sand mastic is available to properties on Yew Tree Lane, Staff Road and Haccups Lane and the roads around them. We also cover the places around Michelmersh: Timsbury (1 mile south), Stonymarsh (1 mile north-west), Kimbridge (1 mile west), Mottisfont (1 mile west) and Dunbridge (1 mile west). Within a short drive, we also cover Winchester (9 miles east), Eastleigh (9 miles south-east), Andover (12 miles north), Totton (8 miles south), Chandler's Ford (6 miles south-east) and Hedge End (12 miles south-east).
Landmarks near Michelmersh
We work in homes and buildings around The Malthouse Inn and the streets around them. For rail, the closest station is Mottisfont & Dunbridge station, roughly 1.5 miles west of the centre. Well-known places in the area include King Johns House (3 miles south) and Romsey Community Hospital (3.1 miles south-east). The countryside around Michelmersh includes Emer Bog and Baddesley Common.
Why act early in Michelmersh
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. Older cottages and farmhouses around Michelmersh can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Why choose Mr Mastic in Michelmersh
- We leave the area clean and tidy
- Homes, businesses and hotels
- Rated 4.9 stars on Google
- Anti-fungal silicone where joints get wet
Questions from Michelmersh
Will you come out to Michelmersh?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you do sand mastic in Michelmersh?
Yes. Our work covers London and the South East, and Michelmersh is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Where are you based?
We are based in Crawley, and we work across South East England, London and Scotland.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises. Working times can be discussed when we quote.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we will talk you through it.
Can I choose the sealant colour?
We help you choose a colour that suits, from white and clear to greys and other shades. The product needed can limit the range.
Towns and villages near Michelmersh
Other services in Michelmersh
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
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 fails, we can still redo it.
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Leave the new mastic unpainted
- Go gently near the mastic when preparing windows
- Ask a joiner to look at soft timber first
- Find out about consent before window work on a listed home
Don’t run silicone over the new mastic. If anything cracks, get it looked at before trying a quick fix.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.