Hampshire · England
Sand Mastic in Kimbridge
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Kimbridge, with a 12-month guarantee on every job. Call for a quick quote.
- Wind and rain getting in round a sash window
- Cracked mastic round a front door frame
- Failed mastic on an exposed elevation
How we handle sand mastic in Kimbridge
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes where a modern sealant bead would stand out. We are often asked to deal with draughty sash windows at the surround and old cement repairs round a window that have failed, across stone surrounds, sash and case windows and tenement windows.
Outdoor sealant needs dry, clean surfaces, so work on frames around Kimbridge is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we will put it right.
- Place
- Kimbridge (SO51)
- Region
- Hampshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026

Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Have rotten timber repaired before new mastic goes in
- Renew mastic before redecorating the windows
- Look over the window mastic once a year
- Take care around the mastic when scraping paint
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
How it works
All our tools and materials come with us in the van, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours per window, depending on the condition of the joints. Somewhere as small as Kimbridge, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- 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.
- We dress the surface so it sits neatly against the masonry.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Keep pets and children clear of the area while we work
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
Advice
What affects the quote in Kimbridge
Call for a quick quote. The main things that affect it are:
- The type of sealant required
- How easy the joints are to reach
- Working hours on commercial sites
- Whether old sealant or filler has to be cut out
The cost depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- If it’s domestic, commercial or a hotel
- A few pictures by email, if you can
- If someone has resealed it before
- Where the property is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or drop us an email.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
What the job involves on each surface
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We can do one window or several.
For landlords and businesses
If you manage several properties in or around Kimbridge, several properties can be quoted together. Just tell us the addresses and what each one needs.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Why deal with it now?
Filling over old, loose mastic doesn’t last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. Older cottages and farmhouses around Kimbridge can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, phone 0345 464 0079 or email us for an honest opinion and a quote.
Why choose Mr Mastic in Kimbridge
- Old sealant always removed completely
- 12-month guarantee on every job
- Homes, businesses and hotels
- Full insurance on every job
Take a look at what affects the cost or our reviews.
Also near Kimbridge
More services for Kimbridge
Common questions in Kimbridge
Do you cover smaller places like Kimbridge?
Yes, Kimbridge is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
I let a flat near Mottisfont & Dunbridge station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Can sand mastic be painted?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Ask us before decorating.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
Are you insured?
Yes. We’re fully insured for domestic and commercial work.
Which is right for my windows, sand mastic or modern sealant?
It depends on the window. On many period windows, sand mastic looks right and suits the building, while modern frames normally get a flexible sealant.
How long will you be here?
That depends on how much there is to do, but as a guide it takes a few hours per window, depending on the condition of the joints. We will tell you when we quote.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
What sand mastic looks like in Kimbridge
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. With historic houses such as Mottisfont Abbey (about 0.9 miles north) nearby, there’s older building stock in the area around Kimbridge as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
If you let a flat or house near Mottisfont & Dunbridge station, older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Church of St Andrew include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For site and facilities teams at buildings such as Awbridge Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Kimbridge is about 3 miles north-west of Romsey, in Hampshire. We provide sand mastic to homeowners, landlords and businesses in Kimbridge and the surrounding area, as part of our work across Hampshire. Across Hampshire, we cover 683 places, Kimbridge among them. You can also see our page for Southampton, roughly 10 miles from Kimbridge.
Postcode districts we cover here for sand mastic: SO51. Other places close to Kimbridge include Dunbridge (1 mile north-west), Mottisfont (1 mile north), Stonymarsh (1 mile north-east), Michelmersh (1 mile east) and Timsbury (1 mile east). Within a short drive, we also cover Winchester (10 miles east), Eastleigh (9 miles south-east), Andover (13 miles north), Totton (8 miles south), Chandler's Ford (7 miles south-east) and Hedge End (13 miles south-east).
Landmarks near Kimbridge
Locally, jobs take us to homes and businesses close to The Bear And Ragged Staff Public House, among other places. For rail, the closest station is Mottisfont & Dunbridge station, roughly 0.8 miles north-west of the centre. Well-known places in the area include King Johns House (3 miles south-east) and Romsey Community Hospital (3.3 miles south-east). Not far away are Emer Bog and Baddesley Common.
