Hampshire · England
Sand mastic for sash & case windows in Grateley, Hampshire
Professional sand mastic in and around Grateley, with every bit of old sealant taken out first.
- Wind and rain getting in round a sash window
- Cement or filler used on old window joints that has cracked
- Window mastic to renew ahead of painting
About our sand mastic in Grateley
Our applicators renew the sand mastic around sash and case windows and doors in stone and brick. The old mastic is raked out, and new mastic is applied and shaped by hand. Common call-outs are for draughty sash windows at the surround and open joints round the window box, on stone surrounds, timber door frames and sash and case windows.
Around Grateley, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Your job is guaranteed for a year, as with all our work.
- Where
- Grateley (SP11)
- Wider area
- Hampshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
New sealant can’t fix everything, and we will tell you before any work starts. It will not solve:
- Sashes that rattle, stick or won’t open
- Putty and glazing repairs
- Decayed frames that need repair
If you’re not sure, just call 0345 464 0079 or email us and we will give you a straight answer before booking.
Joints and surfaces we work on
- Sash and case windows
- Tenement windows
- Stone surrounds
- Timber door frames
- Period & listed homes
- Brick reveals
Common problems we fix in Grateley
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
The most common problems we see are:
- Gaps where the frame meets the masonry
- Tired mastic found when preparing windows for paint
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
For an older house near a landmark such as Church of St Leonard, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- What happens if the job turns out different
- What preparation is included
- Whether the sealant suits the joint
- The length of the guarantee
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Sort the mastic before the decorators arrive
- Ask the planning authority about consent for listed or conservation-area homes
- Leave the new mastic unpainted
- Make sure water runs off the sill
Keep paint scrapers and sanders off the mastic when redecorating. Hard scraping can loosen it.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.
Windows and doors in Grateley
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Grateley Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Grateley station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Grateley is about 6 miles south-west of Andover, in Hampshire. Homes, rented property, offices and hotels in Grateley is covered for sand mastic. Every job comes with our one-year guarantee. Grateley is one of 683 towns and villages in Hampshire where we work. You can also see our page for Southampton, roughly 20 miles from Grateley.
Work in SP11 is quoted and booked the same way as anywhere else. Whether your property is on High Street, Station Road and Hawthorne Close or a nearby road, we can help. Nearby, we also carry out sand mastic in Palestine (1 mile south-west), Quarley (1 mile north), Fox (1 mile north-east), Amport (2 miles north-east) and Kentsboro (2 miles south-east). Larger places within reach include Winchester (15 miles south-east), Andover (6 miles north-east), Romsey (14 miles south-east), Hyde (15 miles south-east), Tidworth (5 miles north-west) and Weeke (14 miles south-east).
Near you in Grateley
Locally, jobs take us to homes and businesses close to The Plough Inn and the streets around them. Grateley’s nearest station is Grateley station, about 0.9 miles south-west of the centre. Nearby you will also find Andover War Memorial Hospital (5.4 miles north-east). Green spaces nearby include Winterbourne Downs RSPB reserve and Quarley Hill.
Your questions about sand mastic in Grateley
Is Grateley in your area for sand mastic?
Yes, Grateley is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and let us know what needs doing.
I let a flat near Grateley station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Should I use sand mastic or silicone?
We’ll talk it through with you. Sand mastic suits many period homes, and modern sealants suit newer frames.
Can you quote for more than one area?
Yes, we can. More than one area can go on one quote.
How long does the job take?
Most jobs take a few hours per window, depending on the condition of the joints, including the preparation. Your quote will say how long we expect yours to take.
Can you replace silicone on a period window with sand mastic?
Yes, we do this often. The old silicone has to come out completely so the mastic can sit properly.
Should I check with the council before work on a listed or conservation-area home?
Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
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 matched to the joint and its conditions, and the work is guaranteed for a year.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How the visit works
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. Most jobs take a few hours per window, depending on the condition of the joints. In a small place like Grateley, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.
Advice
Surface by surface
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Stone surrounds
Old stone surrounds are often uneven, so the gap is not the same all the way round. Sand mastic is shaped by hand to suit.
More services for Grateley
Quotes for sand mastic in Grateley
You will get a clear quote before work begins. It takes into account:
- How many rooms, windows or areas are involved
- How much there is to do
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We will give you a clear price for the lot.
What to tell us for a quote
To make quoting easier, please include:
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
- The type of property
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for sand mastic? Please phone 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and send you a clear quote before we start.