South Lanarkshire · Scotland
Sand Mastic in Stonehouse
Sand mastic in Stonehouse from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Draughts and rain around sash boxes
- Tired mastic found when preparing windows for paint
- Gaps where the frame meets the masonry
Sand mastic for homes and businesses in Stonehouse
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. We work on brick reveals, period & listed homes and tenement windows, and people most often call us about a silicone bead on a sash window that spoils the look and draughts and rain around sash boxes.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Where
- Stonehouse (ML9)
- Region
- South Lanarkshire
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Quotes for sand mastic in Stonehouse
There’s no set price list, because no two jobs are the same. The quote depends on:
- The number of rooms or windows
- Any mould that needs treating
- The old material and how stubborn it is
- How easy the joints are to reach
What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before any work starts, so you know where you stand.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- How many joints, rooms or windows are involved
- How we’d reach the joints
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
How it works
The work is kept neat and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours per window, depending on the condition of the joints. Outside jobs in Stonehouse need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors is not affected.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
- Mention if the joints have been sealed before
Getting a quote
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.
Advice
More services for Stonehouse
Common problems we fix in Stonehouse
Timber frames move with the seasons. The movement cracks the mastic over time.
Signs it’s time to call us include:
- Cement or filler used on old window joints that has cracked
- Draughty sash windows at the surround
- Weathered mastic on the most exposed windows
- Modern sealant on a period surround
Homes close to Stonehouse Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- What product goes in the joint
- What guarantee comes with the work
- What preparation is included
- Are they insured?
Frames and glazing around Stonehouse
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
If you let a flat or house near Larkhall station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Stonehouse is about 3 miles south of Larkhall, in South Lanarkshire. Whether you’re in the middle of Stonehouse or further out, sand mastic is available for homes and businesses alike. Stonehouse is one of 139 towns and villages in South Lanarkshire where we work. There’s also a page for Glasgow, about 16 miles away.
Our applicators cover all of ML9 for sand mastic. We cover properties on Caledonian Avenue, St Ninians Place and Sorbie Drive. If you are just outside Stonehouse, we cover Glassford (2 miles west), Swinhill (2 miles north-east), Sandford (3 miles south-west), Blackwood (3 miles south-east) and Larkhall (3 miles north). We also work in nearby towns such as East Kilbride (9 miles north-west), Hamilton (6 miles north-west), Cambuslang (11 miles north-west), Uddingston (10 miles north), Blantyre (8 miles north-west) and Carluke (7 miles north-east).
Local landmarks in Stonehouse
The closest station to Stonehouse is Larkhall station, roughly 3.2 miles north. Well-known places in the area include Stonehouse Hospital (less than half a mile south-west) and John Hastie Museum (3.3 miles west).
What we can’t put right
Some problems need a builder, plumber or other trade rather than us:
- Decisions on consent for listed homes
- Rotten sashes, sills or window boxes (a joiner’s job)
- Putty and glazing repairs
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Surfaces we seal
- Stone surrounds
- Timber door frames
- Brick reveals
- Tenement windows
- Sash and case windows
- Period & listed homes
Why it’s worth doing now in Stonehouse
New mastic over crumbling mastic will not hold. We remove the loose material first so the new mastic stays put. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water through a failed joint keeps working away until it’s fixed.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
What you get with us
- Every job guaranteed for a year
- ARBOMaster approved applicator
- Domestic, commercial and hotel work
- Fully insured
Take a look at our cost guide and what customers say.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
How the job changes by surface
Tenement and terrace windows
Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. It’s renewed by hand.
Questions from Stonehouse
Is Stonehouse in your area for sand mastic?
Yes, Stonehouse 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, and we’ll send you a clear quote.
Will you come out to Stonehouse?
Yes. Stonehouse is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
What does sand mastic cost?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before any work starts.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Do you take out the old sealant first?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
How long does sand mastic take to harden?
A skin forms quite soon, but full hardening takes longer. We will explain what to expect before we leave.
What guarantee comes with the work?
Our 12-month guarantee applies to all our work.