Scottish Borders · Scotland
Sand Mastic in Hawick
Our applicators work in Hawick on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Mastic dropping out of the joint
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
Keeping the joints in good condition
After the cure time, these simple habits help:
- Go gently near the mastic when preparing windows
- Have rotten timber repaired before new mastic goes in
- Keep modern sealant off the mastic
- Do not paint over the new mastic
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
How we handle sand mastic in Hawick
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. We work on period & listed homes, brick reveals and sash and case windows, and common reasons people get in touch are gaps between timber frames and stone or brick and failed mastic on an exposed elevation.
In a town like Hawick, plenty of homes have harled (roughcast) walls, and sealing a frame against rough harling takes a sealant that grips and moves. A bead that sits on top of the harling rather than in the joint soon lets water in.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Hawick (TD9)
- Wider area
- Scottish Borders
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Hawick homes and the weather
Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. With historic houses such as Harden (about 3.4 miles west) nearby, there’s older building stock in the area around Hawick 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.
If you look after a building such as Hawick High School, the mastic around its windows and doors needs looking after like any other building’s. Harden, about 3.4 miles west, is one of the historic houses in the wider area around Hawick.
Hawick is in the Scottish Borders. Whether you are in the middle of Hawick or further out, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Across the Scottish Borders, we cover 89 places, and Hawick is one of them. For nearby work, see our Edinburgh page.
We cover every part of the TD9 postcode area for sand mastic. If you need sand mastic at a property on High Street, Drumlanrig Square and Teviot Crescent or anywhere close by, we can help. You’ll find Hawick on the A7 and A698, so it’s easy for us to get to. Close by, we work in Wilton (1 mile west), Stirches (1 mile north-west), Wilton Dean (1 mile west), Burnfoot (1 mile north-east) and Newmill (4 miles south-west). We also work in nearby towns such as Galashiels (13 miles north), Selkirk (9 miles north), Jedburgh (10 miles east), Melrose (12 miles north), Earlston (15 miles north) and Langlee (13 miles north). Hawick is among the bigger towns we cover in the Scottish Borders.
Local landmarks in Hawick
Around Hawick, our work takes us to homes and buildings near The Bourtree pub and the streets around them. Well-known places in the area include Borders Textile Towerhouse (under half a mile south) and Hawick Community Hospital (within half a mile west). Open spaces near Hawick include Ashkirk Hill and Williestruther Loch.
What the job involves on each surface
Tenement and terrace windows
Upper-floor windows need access planning. Tell us the height and we will confirm what’s needed.
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
Hawick: your questions answered
Do you cover Hawick for sand mastic?
Yes, Hawick is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and tell us what needs doing.
Is there a guarantee on sand mastic in Hawick?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new layer lifts away from the old one. The old sealant has to come out completely.
Is sand mastic better than silicone for my windows?
That depends on your windows. On many period windows, sand mastic looks right and suits the building and newer frames usually get a flexible sealant.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints.
Is consent needed for window work on a listed home?
Check with your local planning authority. They decide whether consent is needed.
Do you work for letting agents?
Yes, regularly. We can quote for several properties at once, and between tenancies is a good time for the work.
When it is not the sealant
New sealant can’t fix everything, and we will tell you before we start. Sealant will not put right:
- Decisions on consent for listed homes
- Damaged stone surrounds
- Sashes that need overhauling
If in doubt, email us at info@mrmastic.co.uk and we will say what we think.
Where we work in Hawick
- Timber door frames
- Brick reveals
- Stone surrounds
- Sash and case windows
- Tenement windows
- Period & listed homes
Why act early in Hawick
Cement-based fillers and modern sealants don’t always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. In Hawick, wind and rain soon get through failed outside joints. Indoors, failed sealant lets water into floors and ceilings.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why book with us
- Old sealant always removed completely
- Tidy, careful work
- Anti-fungal sanitary silicone in wet areas
- 4.9 on Google from 180+ five-star reviews
Take a look at how sealant jobs are priced and customer reviews.
The process
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to a full day, depending on how many windows. For a job in Hawick, tell us where the work is, how to get in and where to park. Outside work depends on the weather, as sealant needs a dry surface.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- On commercial sites, let us know about site rules
- Mention any parking rules near the property
- Try not to wet indoor joints just before the visit
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Advice
What else we do in Hawick
Landlords, agents and businesses in Hawick
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.