Argyll and Bute · Scotland
Window Mastic in Kilmore
Specialist window mastic for Kilmore: careful preparation, the right product and tidy work. Call for a quick quote.
- Mastic that has split away from the wall
- Cracked sealant at the sill ends
- White mastic on grey or black frames
Window mastic for homes and businesses in Kilmore
Most frames have an outside joint and an inside one. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you have untidy mastic left by window fitters and black, perished sealant on frames, we can put it right, on timber windows & doors, window sills and patio & French doors alike.
Mastic can only go onto a dry joint, so outside work in Kilmore depends on the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Kilmore (PA34)
- Region
- Argyll and Bute
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Kilmore questions
Do you cover smaller places like Kilmore?
Yes, smaller places are covered as well as towns. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Oban station?
Yes. We work for landlords and letting agents as well as householders. Just drop us a line at info@mrmastic.co.uk with the address and what needs doing, and we will give you a clear quote.
Do you seal inside as well as outside?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
What sealant do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we will tell you what we are using.
What do you need from me for a quote?
Tell us what needs doing and where, with photos by email if possible. We will ask anything else we need to know.
What does window mastic cost?
We don’t 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 will get a clear quote before any work starts.
How long does it take to reseal the windows on a house?
Allow a few hours for a handful of frames, longer for a whole house. Access and how stubborn the old mastic is affect the time most.
Where do you work from?
We work from Crawley. We cover Kilmore and the rest of Argyll and Bute.
Aftercare tips
After the cure time, these simple habits help:
- Don’t use solvent cleaners on the joint
- Keep jet washers away from the mastic
- Keep paint off silicone joints
- Look round the frames every year or so
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. Resealing closes it.
What affects the cost of window mastic
You will get a clear quote before any work starts. It’s based on:
- How easy the joints are to reach
- The number of rooms or windows
- Mould in or behind the old joints
- Any working-time requirements on site
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- The rough size of the job
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- The address or postcode of the job
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
What window mastic looks like in Kilmore
Kilmore is within about 1 mile of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
If you live in an older home near Kilmore Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Oban station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Kilmore is about 37 miles north-west of Helensburgh, in Argyll and Bute. If you need window mastic in Kilmore, please send an email to info@mrmastic.co.uk for a quick quote. We cover Argyll and Bute from our Crawley base. Our Argyll and Bute coverage runs to 118 places, and Kilmore is one of them. We also work in Glasgow, about 57 miles from Kilmore.
Every address in PA34 is covered for window mastic. You will find streets such as Riverside Road and Soroba Road. Close by, we work in Oban (3 miles north-west), Dunollie (4 miles north-west), Ganavan (4 miles north), Dunbeg (5 miles north) and Connel (6 miles north). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.
Landmarks near Kilmore
The closest station to Kilmore is Oban station, about 3 miles north-west of the centre. Other landmarks nearby include Lorn and Islands Hospital (2.3 miles north-west) and Dunollie Castle (4.1 miles north-west). Not far away are Loch Nell and Càrn Dearg.
When to call us in Kilmore
Sills take more water than any other part of a window, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
Keep an eye out for these signs:
- Rain getting in at the frame or under the sill
- Draughty joints inside around the window
- Cracked sealant at the sill ends
- Black, perished sealant on frames
For site and facilities teams at buildings such as Oban High School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- When the joint can take water or movement
- How much experience the applicator has
- Whether they’re fully insured
- How hidden problems are handled
How the visit works
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a handful of frames, longer for a whole house. Around Kilmore, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
How to prepare
- Mention any leaks or damp you’ve noticed
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Need a quote? Please drop us a line at info@mrmastic.co.uk with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Related advice
DIY versus a professional finish
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.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Places near Kilmore
More services for Kilmore
Why act early in Kilmore
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. 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.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins, so you know where you stand.
Why Kilmore customers choose us
- A choice of colours where the product allows
- 4.9 on Google from 180+ five-star reviews
- A 12-month guarantee on all work
- Arbo and Everbuild products
Take a look at what affects the cost or our reviews.
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Damp problems in the wall away from the window
- Soft or decayed wood in the frame
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we will tell you honestly.
Surfaces we seal
- Aluminium frames
- Composite doors
- Window sills
- Timber windows & doors
- uPVC windows
- Patio & French doors