Hampshire · England
Sand Mastic in The Frenches
Specialist sand mastic for The Frenches: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Window mastic to renew ahead of painting
- Gaps where the frame meets the masonry
- Patchy fillers round a sash window
How we quote for sand mastic
For a quick quote, just ask. What matters most is:
- How many rooms, windows or areas are involved
- Any working-time requirements on site
- Whether there’s mould to deal with
- How much old sealant there is and how hard it is to remove
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
What to tell us for a quote
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- If someone has resealed it before
- What’s wrong with the joints now
- The type of property
Need a quote? Please ring 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Sand mastic for homes and businesses in The Frenches
A silicone bead around a sash window can look out of place and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. If you are dealing with gaps where the frame meets the masonry and tired mastic found when preparing windows for paint, we can put it right.
Around The Frenches, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Where
- The Frenches (SO51)
- Region
- Hampshire
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
The Frenches homes and the weather
With historic houses such as Mottisfont Abbey (about 3.1 miles north) nearby, there’s older building stock in the area around The Frenches as well as newer homes. 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Letting a property close to Mottisfont & Dunbridge station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
The Frenches is about 3 miles west of Romsey, in Hampshire. From the centre of The Frenches to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our Hampshire coverage runs to 683 places, The Frenches among them. For nearby work, see our Southampton page, about 9 miles away.
Work in SO51 works the same way as everywhere else we cover. Nearby, we also carry out sand mastic in Shootash (1 mile east), Plaitford Green (2 miles west), West Wellow (2 miles south-west), East Wellow (2 miles south) and Blackhill (3 miles south). We also work in nearby towns such as Winchester (11 miles east), Eastleigh (10 miles east), Andover (15 miles north), Totton (6 miles south-east), Chandler's Ford (8 miles east) and Hedge End (13 miles south-east).
Around The Frenches
The closest station to The Frenches is Mottisfont & Dunbridge station, roughly 2.5 miles north of the centre. Nearby you’ll also find King Johns House (2.7 miles east) and Romsey Community Hospital (3.4 miles east). For a walk, there’s Copythorne Common.
Landlords, agents and businesses in The Frenches
Landlords and letting agents in The Frenches can book us as well as householders. Sealant work between tenants keeps a property looking cared for.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
FAQs for The Frenches
Do you cover smaller places like The Frenches?
Yes. The Frenches 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 Frenches in your area for sand mastic?
Yes. We work across London and the South East, and The Frenches is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
How much does sand mastic cost in The Frenches?
Size, access and the old material all affect the cost. Call for a quick quote.
Can sand mastic be painted?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Do you work for landlords and businesses?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels across Hampshire.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Can I choose the sealant colour?
We will suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.
The process
All our tools and materials come with us in the van. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. Somewhere as small as The Frenches, access is often the only tricky part. 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.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- Clear the area around the work
- Mention any parking rules near the property
- Mention if the joints have been sealed before
Getting a quote
There’s no standard price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Related advice
Aftercare tips
Simple care keeps the joints in good condition. We recommend:
- Sort the mastic before the decorators arrive
- Get any rot dealt with first
- Clear gutters so water does not pour onto the windows
- Ask the planning authority about consent for listed or conservation-area homes
Avoid sealing over the mastic with silicone. If you see a crack, ask us to take a look before trying a quick fix.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Common problems we fix in The Frenches
Age is the main cause. Even well-laid mastic needs renewing in time, depending on exposure and upkeep.
Keep an eye out for any of the following:
- Gaps round a timber door in stone or brick
- Old cement repairs round a window that have failed
- Weathered mastic on the most exposed windows
- Draughty sash windows at the surround
In the older streets around Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- How long the guarantee is
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- Who does the work, and how experienced they are
What the job involves on each surface
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Should I try it myself first?
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.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.