Falkirk · Scotland
Sand mastic for sash & case windows in Fankerton, Falkirk
Our applicators work in Fankerton on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
- Tired mastic found when preparing windows for paint
Why deal with it now?
New sash windows are a major, costly change, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. In a place like Fankerton, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why choose Mr Mastic in Fankerton
- We’re fully insured
- 180+ five-star Google reviews
- Trusted Arbo and Everbuild sealants
- Over 20 years’ experience
How we handle sand mastic in Fankerton
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we will talk through which suits your home. If you have open joints round the window box and old cement repairs round a window that have failed, we can put it right, whatever the surface.
Outdoor sealant needs a dry surface, so window work around Fankerton is planned around the weather. Tell us about access to all the windows and doors, upstairs included.
Your job is guaranteed for a year, as with all our work.
- Place
- Fankerton (FK6)
- Wider area
- Falkirk
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Places near Fankerton
Other services in Fankerton
What sand mastic looks like in Fankerton
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. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
For site and facilities teams at buildings such as Denny High School, the mastic around its windows and doors needs looking after like any other building’s.
Fankerton is about 6 miles north-east of Cumbernauld, in Falkirk. Across the FK6 area, we cover sand mastic for homes and businesses. 50 places in Falkirk are on our list, large and small. You can also see our page for Glasgow, roughly 17 miles from Fankerton.
Work in FK6 is quoted and booked the same way as anywhere else. We cover properties on Glenview, Darrach Drive and Grahamshill Terrace and the roads around them. We also cover Stoneywood (1 mile east), Dunipace (1 mile east), Denny (1 mile south-east), Head of Muir (2 miles south-east) and Dennyloanhead (2 miles south-east). Larger places within reach include Falkirk (6 miles east), Grangemouth (9 miles east), Bo'ness (13 miles east), Larbert (4 miles east), Stenhousemuir (5 miles east) and Bonnybridge (3 miles south-east).
What’s near Fankerton
The closest station to Fankerton is Larbert station, roughly 4.4 miles east. Nearby you will also find Forth Valley Royal Hospital (3.7 miles east) and Herbertshire Castle (0.9 miles east). Not far away are Myot Hill.
Fankerton questions
Do you cover Fankerton for sand mastic?
Yes. We work across all of Scotland, and Fankerton is part of that. You can send an email to info@mrmastic.co.uk and let us know what needs doing.
Is Fankerton within the area you cover?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Should I try DIY first?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Will you leave a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
How long does sand mastic take to go off?
It skins over fairly quickly but takes longer to harden fully. We will explain what to expect before we leave.
How long does the job take?
Typically it takes anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Ask the planning authority about consent for listed or conservation-area homes
- Look over the window mastic once a year
- Keep sills and gutters clear so water drains away
- Plan mastic work ahead of painting
Do not run silicone over the new mastic. If you see a crack, ask us to take a look rather than patching it.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Do you need sand mastic in Fankerton?
Shallow joints are a common cause. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.
The most common problems we see are:
- Window mastic to renew ahead of painting
- Gaps between timber frames and stone or brick
- Mastic round period door frames that has failed
- Draughts and rain around sash boxes
Letting a property close to Larbert station? Then any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- Is the old sealant removed completely?
- What the quote includes, VAT included or not
- When the joint can take water or movement
- How the colour is chosen
Landlords, agents and businesses in Fankerton
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Quotes for sand mastic in Fankerton
The price is agreed before any work begins. It’s based on:
- Any mould that needs treating
- How many rooms, windows or areas are involved
- How easy the joints are to reach
- Working hours on commercial sites
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part.
What we need to know
What to tell us when you ask for a quote:
- Where the job is, and your postcode
- If someone has resealed it before
- The problem you’ve noticed
- Whether it’s a home or a business
We quote each job on its own, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details, and pictures are welcome.
Surface by surface
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
How it works
On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The job generally takes a few hours per window, depending on the condition of the joints. Outside jobs in Fankerton need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
We do not publish a price list. Instead, we give you a clear price for your job. To arrange one, drop us a line at info@mrmastic.co.uk.