Midlothian · Scotland
Sand Mastic in Penicuik
Professional sand mastic in and around Penicuik, with every bit of old sealant taken out first and a 12-month guarantee.
- Cement or filler used on old window joints that has cracked
- Mastic that needs renewing before redecorating
- Silicone on a period window that looks wrong
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Timber that has rotted
- Planning or listed building consent (your local planning authority decides)
- Sashes that need overhauling
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly before you book.
Where we work in Penicuik
- Tenement windows
- Sash and case windows
- Timber door frames
- Period & listed homes
- Stone surrounds
- Brick reveals
About our sand mastic in Penicuik
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. Common call-outs are for old cement repairs round a window that have failed and cracked mastic round a front door frame, across timber door frames, tenement windows and period & listed homes.
In a town like Penicuik, plenty of homes have harled (roughcast) walls, and the joint between a frame and rough harling needs a sealant that can grip and flex. A bead that sits on top of the harling rather than in the joint soon lets water in.
Your job is guaranteed for a year, as with all our work.
- Place
- Penicuik (EH26)
- Region
- Midlothian
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Towns and villages near Penicuik
What else we do in Penicuik
Penicuik: your questions answered
Can you do sand mastic in Penicuik?
Yes, Penicuik is within the area we cover. Our work covers the whole of Scotland. You can email us at info@mrmastic.co.uk and let us know what needs doing.
Is sand mastic in Penicuik guaranteed?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
How much does sand mastic cost in Penicuik?
Size, access and the old material all affect the cost. Call for a quick quote.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Is it possible to take out silicone and use sand mastic instead?
Usually, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available, and we agree the colour with you before work begins.
Do I need permission for sand mastic on a listed building?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
Surface by surface
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
Tenement and terrace windows
Rows of sash windows on tenements and terraces often need renewing together. We work on single windows or whole elevations.
Why act early in Penicuik
Silicone might seem the quicker option, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. For landlords in Penicuik, damp and leaks can fall under the Repairing Standard. Replacing failed sealant early is simpler than dealing with a complaint.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please send an email to info@mrmastic.co.uk and we will talk you through it.
What you get with us
- One-year guarantee on every job
- ARBOMaster approved applicator
- More than 20 years in sealant work
- Tidy, careful work
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
If you’ve already had a go yourself, that is fine. We cut it out and start again.
Landlords, agents and businesses in Penicuik
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
How it works
Before we leave, we go over the finished joints with you. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. Parking around Penicuik is rarely difficult, though older streets in the centre can be tight. If you are in a flat with a shared stair or a door entry system, let us know when you book.
- Each surround is checked first.
- The joint is raked out and cleaned.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
How to prepare
- Keep children and pets away from the work area
- Let us know about stairs, lifts or work at height
- For business premises, tell us about site rules or sign-in
Ask for 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 talk you through the work before giving you a price.
Read more
Penicuik homes and the weather
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. 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.
In and around Penicuik, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint. Schools such as Beeslack Community High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Penicuik is about 8 miles south of Edinburgh, in Midlothian. Every kind of property in Penicuik can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our Midlothian coverage runs to 33 places, Penicuik among them. There’s also a page for Edinburgh, about 8 miles away.
Our applicators cover all of EH26 for sand mastic and the streets around it. Whether your property is on Windsor Square, High Street and The Square or anywhere close by, we can help. With the A701 and A702 close by, Penicuik is easy for our applicators to reach for sand mastic. Neighbouring places we cover for sand mastic include Milton Bridge (1 mile north-east), Howgate (2 miles south-east), Silverburn (2 miles west), Swanston (4 miles north) and Bonaly (5 miles north). Larger places within reach include Bonnyrigg (5 miles north-east), Dalkeith (7 miles north-east), Loanhead (4 miles north-east), Gorebridge (7 miles east), Newtongrange (7 miles east) and Mayfield (8 miles east). Penicuik is one of the larger places we cover in Midlothian.
Around Penicuik
Typical jobs here are in homes near Craigiebield House Hotel and the streets around them. Other landmarks nearby include Rosslynlee Hospital (1.7 miles north-west) and Penicuik Paper Heritage Museum (0.7 miles south). Open spaces near Penicuik include Edgelaw Reservoir and Turnhouse Hill.
Aftercare tips
Aftercare is simple:
- Get any rot dealt with first
- Renew mastic before redecorating the windows
- Find out about consent before window work on a listed home
- Go gently near the mastic when preparing windows
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.