Falkirk · Scotland
Window Mastic in Fankerton
Problem with your window and door frames in Fankerton? We cut out the old, prepare the joints and apply the right sealant.
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
- Cold air getting in at the frame edge
Common questions in Fankerton
Is Fankerton within the area you cover?
Yes, Fankerton is covered. We work across all of Scotland, and smaller places are part of that. Longer journeys are simply planned in advance.
Is Fankerton in your area for window mastic?
Yes. We work across all of Scotland, and Fankerton is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
Are you fully insured?
Yes. We are fully insured.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
Can resealing stop a draught around my window?
Often, yes. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
How long will my window job take?
A few frames take a few hours. We confirm the timing with your quote.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used.
About our window mastic in Fankerton
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. If you have black, perished sealant on frames and water coming in at the bottom corners of a door, we can help.
In and around a place like Fankerton, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
You’re covered for a year from the day we finish. If anything isn’t right with it, send an email to info@mrmastic.co.uk.

- Place
- Fankerton (FK6)
- Wider area
- Falkirk
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Common problems we fix in Fankerton
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
Keep an eye out for any of the following:
- Cold air getting in at the frame edge
- Damp patches on the reveal after heavy rain
- Gaps where the sill meets the wall
- Mastic that’s falling out in pieces
Schools such as Denny High School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before booking
- Are they insured?
- How the joint is cleaned and prepared
- What the cure time is
- Who does the work, and how experienced they are
Looking after it afterwards
Looking after new joints is easy:
- Keep timber frames painted
- Wipe condensation off the frames
- Make sure the drainage slots aren’t blocked
- Use gentle cleaners on frames and sealant
Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Why deal with it now?
Running fresh sealant over the old joint is tempting, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In a place like Fankerton, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts.
Why book with us
- White, clear, grey or another colour, product permitting
- Domestic, commercial and hotel work
- Rated 4.9 stars on Google
- We leave the area clean and tidy
Read what affects the cost or customer reviews.
What affects the quote in Fankerton
Some jobs are bigger than they look, and some smaller. The main factors:
- How many areas need sealing
- Any working-time requirements on site
- The number and length of the joints
- Whether old sealant or filler has to be cut out
Doing several joints on one visit generally makes better use of the time than several visits. We will give you a clear price for the lot.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- A few photos by email, if you can
- Whether it has been sealed before
Every job is quoted individually, so the first step is telling us about yours. Simply send an email to info@mrmastic.co.uk and describe the job.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. It will not solve:
- A sash or casement that won’t close properly
- Draughts through the window seals rather than the frame
- Condensation trapped between the panes
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Composite doors
- Window sills
How it works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a morning for a couple of windows and a door and we leave things clean and tidy. Somewhere like Fankerton 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.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Move anything stored near the joints
- Mention any parking rules near the property
How to get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, drop us a line at info@mrmastic.co.uk.
Related advice
Nearby places to Fankerton
Other services in Fankerton
Fankerton homes and the weather
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional 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 landlords with property near Larbert station, renewing tired window mastic between tenants heads off draught and damp complaints.
Fankerton is about 6 miles north-east of Cumbernauld, in Falkirk. Fankerton gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Across Falkirk, we cover 50 places, and Fankerton is one of them. You can also see our page for Glasgow, roughly 17 miles from Fankerton.
Here we cover the FK6 postcode area for window mastic. Window mastic is available to properties on Glenview, Darrach Drive and Grahamshill Terrace. We also cover the places around Fankerton: 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). We also work in nearby towns such as 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 nearest railway station 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). Open spaces near Fankerton include Myot Hill.
What the job involves on each surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We will tell you which suits your home.
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. Each is cleaned out and resealed.
