Hampshire · England
Sand mastic for sash & case windows in Hardley, Hampshire
Sand mastic for Hardley and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
- Patchy fillers round a sash window
Sand mastic for homes and businesses in Hardley
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. If you’re dealing with wind and rain getting in round a sash window and cement or filler used on old window joints that has cracked, we can put it right, on timber door frames, brick reveals and sash and case windows alike.
Mastic can only go onto a dry, clean joint, so window work in Hardley is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our one-year guarantee in Hardley and across Hampshire.
- Place
- Hardley (SO45)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Hardley
Rain on the window surround works into any crack and pushes it out. Windows facing the weather tend to go first.
The most common problems we see are:
- Mastic worn away on windows facing the weather
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
- Draughts and rain around sash boxes
Schools such as The New Forest Academy are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- Whether all the old sealant comes out first
- Whether they’re fully insured
- What preparation is included
- When the joint can take water or movement
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so these are the limits:
- Crumbling stone or brickwork round the window
- Planning or listed building consent (your local planning authority decides)
- Timber that has rotted
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Brick reveals
- Tenement windows
- Timber door frames
What affects the cost of sand mastic
Every job gets its own quote. This is what makes a difference:
- Whether old sealant or filler has to be cut out
- The product the joint needs
- Working hours on commercial sites
- Access and height
Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The address or postcode of the job
- If someone has resealed it before
- Whether it’s a home or a business
- The problem you’ve noticed
There’s no standard price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or drop us an email.
How to look after the new joints
So the new joints stay in good condition:
- Renew mastic before redecorating the windows
- Go gently near the mastic when preparing windows
- Avoid patching sand mastic with silicone
- Ask a joiner to look at soft timber first
Avoid painting over the new mastic, which is the traditional advice. Ask us before any decorating around it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
What sand mastic looks like in Hardley
Hardley is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. With historic houses such as Beaulieu Palace House (about 2.9 miles south-west) nearby, there’s older building stock in the area around Hardley as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around St Anne, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Rented homes near Netley station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Hardley is about 2 miles south of Hythe, in Hampshire. We provide sand mastic to homeowners, landlords and businesses in Hardley, as part of our work across Hampshire. Hardley is one of 683 places in Hampshire where we work.
We cover every part of the SO45 postcode area for sand mastic. If you need sand mastic at a property on Harrier Way, Harrier Green and Falconer Court or a nearby road, we can help. Close by, we work in Little Holbury (1 mile south), Holbury (1 mile south), Frostlane (1 mile north), Roughdown (1 mile south) and Blackfield (2 miles south-east). We also work in nearby towns such as Gosport (11 miles east), Eastleigh (9 miles north), Fareham (9 miles east), Totton (7 miles north-west), Chandler's Ford (10 miles north) and Hedge End (7 miles north-east).
What’s near Hardley
Typical jobs here are in homes near Manor Church of England Infant School. The closest station to Hardley is Netley station, about 3.3 miles north-east of the centre. A little further out are Royal South Hants Hospital (5.1 miles north) and Beaulieu Abbey And Display Of Monastic Life (2.9 miles west). The countryside around Hardley includes Mercury Marshes.
Landlords, agents and businesses in Hardley
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
We also work for property managers and facilities teams in Hardley and across Hampshire. We can quote a run of properties together, and we are fully insured.
Also near Hardley
What else we do in Hardley
How the visit works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take anything from a few hours to a full day, depending on how many windows. Somewhere like Hardley needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
Getting a quote
We quote each job on its own. Just ring 0345 464 0079 or email us with the details, and pictures are welcome.
Read more
Your questions about sand mastic in Hardley
Does living near the coast affect sand mastic in Hardley?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Will you come out to Hardley?
Yes. Hardley is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is the work guaranteed?
Our 12-month guarantee covers every job.
Do you have insurance?
Yes. Mr Mastic is fully insured.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
What should I tell you?
Let us know what needs doing and where, plus photos if you have them. If we need more, we will ask.
Is it worth trying it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
What the job involves on each surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.