Falkirk · Scotland
Sand Mastic in Dunipace
Problem with your window and door surrounds in Dunipace? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Cracked mastic round a front door frame
- Old sand mastic that has cracked, crumbled or fallen out
- Cement or filler used on old window joints that has cracked
Landlords, agents and businesses in Dunipace
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance that we can handle for you.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
How we handle sand mastic in Dunipace
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. Out comes the old, loose mastic, the joint is prepared and new mastic is shaped by hand. Typical jobs include gaps where the frame meets the masonry and wind and rain getting in round a sash window, across sash and case windows, period & listed homes and timber door frames.
Mastic can only go onto a dry joint, so outside work in Dunipace depends on the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
You are covered for a year from the day we finish. If anything is not right with it, send an email to info@mrmastic.co.uk.
- Place
- Dunipace (FK6)
- Region
- Falkirk
- Cover
- One year on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Last updated
- 26 October 2026

Why act early in Dunipace
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic is the like-for-like choice and that can be important for listed homes. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
A few things move the cost up or down: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
Why choose Mr Mastic in Dunipace
- Rated 4.9 stars on Google
- Tidy, careful work
- Sanitary silicone with an anti-fungal additive in wet areas
- Experience in homes, commercial sites and hotels
Take a look at our cost guide or our reviews.
Places near Dunipace
Other services in Dunipace
When to call us in Dunipace
Sand mastic slowly weathers. It dries out, cracks and loses its grip from the frame or the masonry.
Signs it’s time to call us include:
- Gaps where the frame meets the masonry
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
- Mastic dropping out of the joint
Managing a site like Denny High School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Questions to ask before booking
- The length of the guarantee
- What product goes in the joint
- How the colour is chosen
- What the cure time is
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Renew mastic before redecorating the windows
- Clear gutters so water does not pour onto the windows
- Keep modern sealant off the mastic
- Inspect the joints round the windows every year or so
Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Can I do it myself?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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 we do, step by step
When we arrive, we look over the joints with you first, so there are no surprises. We protect the surfaces around the joints before work begins. The work normally takes a few hours per window, depending on the condition of the joints. Somewhere like Dunipace may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- On commercial sites, let us know about site rules
- Tell us about any previous sealing or DIY attempts
Get a quote
For sand mastic in Dunipace, drop us a line at info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
Advice
How the job changes by surface
Stone surrounds
Sand mastic sits naturally against stone. The finish blends with the masonry.
Brick reveals
Loose mastic comes out and deep gaps are packed before the new mastic goes in.
Your questions about sand mastic in Dunipace
Can you help a landlord with a rental near Larbert station?
Yes, we work for landlords and letting agents. Just email us at info@mrmastic.co.uk and tell us about the property, and we’ll send you a clear quote.
Is Dunipace within the area you cover?
Yes, Dunipace is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is it OK to seal over old sealant?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us and we’re fully insured.
Do you have insurance?
Yes, we are fully insured.
Should I check with the council before work on a listed or conservation-area home?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish, but they decide.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Windows and doors in Dunipace
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
If you let a flat or house near Larbert station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Dunipace is about 5 miles west of Falkirk, in Falkirk. Whether you are in the middle of Dunipace or further out, sand mastic is available for homes and businesses alike. Dunipace is one of 50 towns and villages in Falkirk where we work. There’s also a page for Glasgow, roughly 18 miles from Dunipace.
We work across the FK6 postcode area for sand mastic and the streets around it. That includes homes and businesses on Stirling Street, Thistle Avenue and Church Lane. Nearby, we also carry out sand mastic in Stoneywood (1 mile south-west), Denny (1 mile south), Fankerton (1 mile west), Head of Muir (1 mile south) and Dennyloanhead (2 miles south). Within a short drive, we also cover Falkirk (5 miles east), Grangemouth (8 miles east), Bo'ness (12 miles east), Larbert (3 miles east), Stenhousemuir (4 miles east) and Bantaskin (5 miles south-east).
Landmarks near Dunipace
The closest station to Dunipace is Larbert station, roughly 3.3 miles east. Well-known places in the area include Forth Valley Royal Hospital (2.6 miles east) and Herbertshire Castle (less than half a mile south-west). Not far away are Myot Hill.
