Woodfellas are the timber window specialists operating from Neilston. We build, refurbish, and fit timber windows from our Neilston workshop, working across both homes and commercial properties across Central Scotland.
Not a single window we make without being custom-built. Sustainably sourced treated pine or hardwood, double glazing, and enhanced security, all standard.
Tenements need sash and case, modern extensions want casement, and some properties need a complete replacement set. Whatever the project, we produce ourselves and install ourselves. No middlemen.
Our timber window range
We manufacture two primary types of timber window, each built for different properties and specifications. Both are available in treated pine or hardwood, and both include double-glazed sealed units as standard.
Sash windows
The classic Scottish window, and still the go-to.
You know what makes sash windows special? They slide vertically in a timber box frame using cords and counterbalance weights. They’re the standard window on most of Neilston’s period tenements, and the only permitted replacement for listed buildings and conservation area properties where sash and case was the existing design.
We restore, fix, and build custom sash windows built to match original profiles and proportions. The outcome is modern thermal and acoustic results in a window that fits right in.
If your original frames are in good condition, restoration, draught-proofing and double glazing upgrades, is often the best route. We complete full assessments before recommending any replacement, so you know exactly where you are.

Hinged windows
Casement windows are hinged and open out to open, creating a wider opening for fresh air and making access from inside straightforward. They’re common on Neilston properties built from the 1920s onwards, as well as 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 made to measure and double glazed as standard, no exceptions.
Our timber casement windows page has more information on all available designs and options.
Why timber windows are the right choice
There’s a reason people have been putting timber windows in properties for generations, and it’s not just because they always have. Timber genuinely outperforms UPVC and aluminium in multiple areas that matter to households.
Natural heat insulation
Did you know timber conducts heat far less easily than aluminium, and it outperforms UPVC at the same frame width? That means superior thermal performance from the frame itself, before you even factor in the double glazing.
Scotland. Cold. Expensive to heat. A timber frame’s insulating characteristics make a tangible difference.
Repair, don’t replace
The key thing about timber windows is that if something goes wrong, you can fix it.
Got rot in a sill or bottom rail? You cut it out and splice in new timber. Damaged section of frame? Repair. With UPVC, you don’t have that option. When it breaks, the whole thing goes to landfill and you’re starting over.
Think about it: over the lifespan of a property, being able to look after timber windows rather than replacing them cuts serious money and reduces a lot of material waste.
Environmental credentials
Every bit of timber we use is sourced from ethically managed forests, that’s how we operate.
Timber is a sustainable resource that sequesters carbon during its lifespan and decomposes cleanly at end of life. UPVC is a plastic made from oil, and aluminium manufacturing is highly energy-intensive, worth knowing if the environment matters to you.
If the environmental footprint of your house matters to you, timber is clearly the right option. It’s not complicated.
Beauty and value
Timber windows have a substance, depth, and grain that no artificial alternative can replicate.
On a traditional sandstone tenement, a pale stone villa, or a period Scottish cottage, timber windows belong in a way UPVC never quite manages. Worth considering if aesthetics matter to you.
They contribute real property value too. Especially period homes. Period features matter to potential buyers.
Double glazing in wooden windows
Sash or casement. Every window. Double-glazed sealed units installed as standard.
The sealed unit is housed inside the timber frame: it’s two panes of glass with a sealed cavity between them, which limits heat transfer and improves sound insulation.
Combine the timber frame’s natural insulating characteristics with double glazing and you get excellent thermal and acoustic results across both window types.
Need glazing bars for a traditional divided-light appearance? We can install those too.
If your older timber windows are still solid but single glazed, we can in many cases switch them to double glazing as part of a restoration programme. This retains the existing frames and improves thermal performance without a full replacement.
This is a regular project on Neilston’s older properties. The original sash windows are solid, but the single glazing lets in cold air and road noise, and upgrading to double glazing solves both.
Every unit we install satisfies current building regulations governing thermal performance.

Conservation area timber windows
Over 600 conservation areas across Scotland. The chances are yours is one of them.
Property in a conservation area? UPVC: not acceptable. Council may require replacements replicating the original. Material, design, profile.
We’ve been manufacturing timber windows for conservation areas and listed buildings across Scotland for over 20 years, so we know what the council requires, nothing new to us.
We can walk you through consent conditions and build windows that tick every planning condition while delivering modern standards. If you want more on the regulations, our sash and case windows page covers them in full detail.
Wood types we use
Across all our window ranges, we stock two types of timber.
Treated pine is the most popular option. It is pressure-treated to ward off rot and decay, takes a paint finish well, and holds up well in Neilston’s damp weather.
For properties where a natural timber finish is desired, or where added longevity is called for, we offer hardwood, which is inherently more resistant to wear and takes stains and oils beautifully.
We advise on the right timber for each project, based on the property, its exposure, and the finish you need. Just ask and we’ll steer you right.
Timber windows, your questions answered
What types of timber windows do you make?
Sash and case is the traditional Neilston style, moving vertically in a box frame, that’s one type. Casement windows are hinged and swing outward, that’s the other. Both come in treated pine or hardwood. And we make fixed window panels too, for any window opening configuration.
Timber windows vs UPVC, which is better?
Yes, for results, longevity, and appearance, timber is better. It insulates better at the equivalent frame thickness, lasts considerably longer when looked after, and can be repaired rather than replaced. It’s also the sole material permitted for listed buildings and is greatly preferred in conservation areas.
Is it possible to upgrade single glazing in timber windows?
Most cases, yes. The existing frames are good, so we switch the glazing to double-glazed sealed units as part of a restoration programme. Existing frames stay, appearance stays, and the thermal and acoustic performance improves, without a full replacement.
Get your free timber window estimate in Neilston
Single window repaired. Complete property of custom timber windows. Call 07920 057592 or complete the form on our contact page. We’ll get back to you within 24 hours.
We also produce custom timber doors, bi-fold doors, and timber shop fronts, serving Neilston and Central Scotland.