Woodfellas are Dunoon’s established timber window experts, making, restoring, and putting in timber windows from a Dunoon premises that covers residential properties and commercial properties right across Central Scotland.
Every window we build is built to order from responsibly sourced treated pine or hardwood timber, with double glazing and upgraded security included as standard.
Sash and case for a tenement? Casements for a modern extension? A complete new set for any property? We produce them all ourselves and put them in ourselves.
Our timber window options
We make two main types of timber window, each designed for different properties and needs. Both are made in treated pine or hardwood, and both feature double-glazed sealed units as standard.
Sash and case windows
Scotland’s classic window type.
Sash windows move up and down within a box frame, using a system of weighted cords and pulleys doing the work. They’re the original window type on most of Dunoon’s period tenements, and the correct replacement for listed buildings and conservation area properties where sash and case was the existing design.
We refurbish, repair, and produce custom sash windows. Existing profiles. Period proportions. Modern thermal and acoustic performance.
A lot of the time, restoring the existing frames, draught-proofing and double glazing, is the smarter route if the frames themselves are still sound. We do a full inspection before suggesting full replacement.

Casement windows
Hinged. Swing out to open. Bigger opening, easier access from inside. Common on Dunoon properties built from the 1920s on, including rear extensions, dormers, and newer builds.
We manufacture custom timber casement windows in side hung, top hung, and fixed setups. Just like our sash windows, every casement is built to order and fitted with double glazing as standard, no exceptions.
Our timber casement windows section covers all listed options and choices in full detail.
Why timber is the right choice for windows
Timber has been the leading window material for centuries. Not just tradition, it genuinely outperforms UPVC and aluminium in multiple areas that matter to property owners.
Natural insulation
Did you know timber carries heat far less quickly than aluminium, and it outperforms UPVC at the same frame thickness? That means better thermal performance from the frame itself, before you even factor in the double glazing.
In Scotland, heating bills are a real concern. The thermal characteristics of a timber frame make a measurable impact to those costs, and it’s worth knowing.
Timber windows, repair before replace
Wear sets in. With timber, that’s not the end of the story. You can fix it.
Got rot in a sill or bottom rail? You take it out and fit new timber. Damaged section of frame? Repair. With UPVC, you don’t have that option. When it goes, the whole thing ends up in landfill and you’re starting over.
Over the lifespan of a property, the option to maintain and repair timber windows rather than replacing them means significant savings in both cost and material waste.
Sustainability
All our timber comes from ethically managed forest.
Timber is a renewable material that stores carbon throughout its working life and breaks down cleanly at end of life. UPVC is a plastic made from oil, and aluminium production is extremely energy-intensive, worth knowing if the environment is important to you.
For those for whom the carbon impact of their home is a concern, timber is the obvious choice.
The appeal and value of timber windows
Timber windows have a weight, a depth, and a grain that no synthetic material can come close to.
Sandstone tenement. Blonde stone villa. Traditional Scottish cottage. Timber windows belong. UPVC just can’t.
And they add tangible value to a property, especially older properties where period features are what buyers look for.
Double glazing in timber windows
Every window we produce, sash or casement, comes with double-glazed sealed units fitted. No add-ons required.
The sealed unit fits inside the timber frame: it’s two layers of glass with a cavity between them, which cuts down on heat transfer and lifts sound insulation.
Combined with the inherent thermal properties of the timber frame, a double-glazed timber window gives you solid thermal and acoustic results across both sash and casement styles.
For properties that need a traditional divided-light appearance, we can install glazing bars as part of the installation.
Older frames. Single glazing only. Still structurally sound? We can often convert to double glazing as part of a restoration programme. Existing frames are preserved. Performance improves. No full replacement.
This is a regular job on Dunoon’s older properties. The existing sash windows are well-built, but the single glazing allows in cold air and ambient noise, and upgrading to double glazing fixes both.
Every unit we install satisfies the latest building regulations governing thermal standards.

Timber windows for conservation areas
Scotland has more than 600 officially recognised conservation areas, and if you’re in one changes what you can do with your windows.
In a conservation area? UPVC is not an acceptable window material, and your local council will likely require replacements that replicate the original in material, design, and profile.
Over 20 years manufacturing timber windows for conservation areas and listed buildings across Scotland, we know what the council requires.
We can advise on consent conditions and make windows that meet every planning condition while still giving you modern standards. Our sash and case windows page covers the regulations in more detail if you want to read up.
Wood types we work with
Two timber types. That’s what we work with across all window range.
Most customers choose treated pine. It’s pressure-treated to prevent rot and decay, holds a painted finish well, and holds up in Dunoon’s wet climate with no trouble.
A natural timber finish, extra strength, hardwood is the answer for both. Inherently more wear-resistant, and it takes stains and oils beautifully.
Not sure which timber to pick? We advise on the right timber for each job based on the property, the exposure, and the finish you want.
Wooden windows, frequently asked questions
What timber windows do you make?
Sash and case is the traditional Dunoon style, moving up and down in a timber box frame, that’s one type. Casement windows are hinged and open outward, that’s the other. Both are available in treated pine or hardwood. And we build fixed window panels too, for any window opening setup.
Is timber a better choice than UPVC?
For performance, longevity, and looks? Yes, timber wins. It insulates better at the comparable frame width, lasts considerably longer when looked after, and can be repaired not replaced. It’s also the only material permitted for listed buildings and highly favoured in conservation areas.
Can existing timber windows be upgraded to double glazing?
In most cases, yes. Sound current frames? We switch the glazing to double-glazed sealed units as part of a restoration programme. Existing frames stay, thermal and acoustic performance improves.
Get a free estimate for timber windows in Dunoon
Got a single window fixed or a complete home of custom timber windows? Give us a call on 07920 057592 or fill in the form on our contact page and we’ll be in touch within 24 hours.
Timber doors and bi-fold doors, timber shop fronts, we make those too, across Dunoon and Central Scotland.