Hampshire · England
Sand Mastic in Winchester
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Winchester and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked mastic round a front door frame
- Open joints round the window box
- Modern sealant on a period surround
Winchester homes and the weather
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like St Bede Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Winchester station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Winchester is in Hampshire. Wherever you are in the SO22 postcode area, we can carry out sand mastic at your property. Across Hampshire, we cover 683 places, Winchester among them. For nearby work, see our Southampton page, about 10 miles away.
Jobs for sand mastic in SO22, SO23, SO32 and SO21 works the same way as everywhere else we cover. You’ll find streets such as The Square, Market Street and Market Lane. Winchester is on the A31 and A32, which makes it straightforward to reach with everything needed for sand mastic. We also cover Bar End (1 mile south-east), Highcliffe (1 mile east), Hyde (1 mile north), St Cross (1 mile south) and Stanmore (1 mile south-west). Within a short drive, we also cover Eastleigh (6 miles south), Fareham (15 miles south), Andover (13 miles north-west), Totton (13 miles south-west), Chandler's Ford (6 miles south-west) and Hedge End (10 miles south). Winchester is one of the larger places we cover in Hampshire.
What’s near Winchester
Typical jobs here are in homes near Peter Symonds College, The Green Man pub and Leigh House Hospital. The nearest railway station is Winchester station, about 0.6 miles north of the centre. Other landmarks nearby include Winchester City Museum (under half a mile north-east) and St John's Rooms And Chapel (less than half a mile east). The countryside around Winchester includes Winnall Moors and Twyford Down.
Sand mastic for homes and businesses in Winchester
Sand mastic doesn’t last for ever and gaps open up round the frame. We rake it out and renew it so the surround looks right again. If you have failed mastic on an exposed elevation and window mastic to renew ahead of painting, we can put it right.
With a large rental market, Winchester has plenty of windows that landlords need to keep weathertight. Gaps around a frame let in draughts and water, and tenants notice.
The work is guaranteed for twelve months. If something isn’t right with it in that time, tell us and we will put it right.
Landlord and commercial work in Winchester
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. Several sites can go on one quote.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Different surfaces, different methods
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is usually favoured.
Timber door frames
Round a period front door, sand mastic gives the right look.
Aftercare tips
So the new joints stay in good condition:
- Renew mastic before redecorating the windows
- Don’t paint over the new mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Keep modern sealant off the mastic
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
Towns and villages near Winchester
More services for Winchester
Winchester: your questions answered
What guarantee comes with sand mastic in Winchester?
Every job comes with our one-year guarantee, wherever it is. We are also fully insured and ARBOMaster approved.
I let a flat near Winchester station. Can you help?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Do you work in Winchester?
Yes. We work in Winchester, as part of our work across South East England, London and Scotland. To book, call 0345 464 0079 or send us an email.
Should I use sand mastic or silicone?
For period timber windows in stone or brick, sand mastic is often the better fit. Modern frames normally suit a flexible sealant.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.
When will the new mastic be hard?
Not right away. The skin forms first, and the full set comes later and we will give you an idea for your job.
Signs you need sand mastic in Winchester
Some old mastic was never deep enough. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.
Look out for any of the following:
- Patchy fillers round a sash window
- Crumbling sand mastic round a window
- Modern sealant on a period surround
- Cracked mastic round a front door frame
Homes close to St Swithun-upon-Kingsgate Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Questions to ask before booking
- How the surfaces are prepared before sealing
- Is VAT in the price?
- What happens if the job turns out different
- The length of the guarantee
What happens if it’s left?
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice, which can matter on listed and conservation-area homes. Busy buildings in Winchester, from hotels to offices, can’t afford rooms out of use for leaks or mould, so failing joints are best replaced on a planned basis.
Combining jobs into one visit is normally more efficient than separate visits. We’ll send you a clear quote for the lot.
Why us?
- ARBOMaster approved applicator
- Anti-fungal silicone where joints get wet
- Old sealant always removed completely
- Trusted Arbo and Everbuild sealants
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to a full day, depending on how many windows. Commercial jobs in Winchester can be planned out of hours where a building can’t close, and homes are booked within our usual hours, Monday to Saturday.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Mention if the joints have been sealed before
Get a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.