Timber sash and case windows are suitable for every household. Over time, these distinctive windows require some extra care.
Sash cords break, the draught seal deteriorates, and the bottom rails start to rot through years of neglect. The window shakes, then sticks, then eventually fails to close properly.
Woodfellas have been dedicated timber sash and case window specialists, serving Scottish homes across Irvine from our workshop for more than two decades.
We repair and also craft fully bespoke replacements when a window is too far gone!
Reach out to us on 07920 057592 or contact us via our contact page to arrange a free visit and written quotation.
What is a timber sash and case window
The heading reflects how the system works.
The sash refers to the movable glass panel, whilst the case is the hollow timber frame that is built within the wall around the window opening.
Housed within each case are two counterweights, one corresponding to the upper sash and one to the lower. These weights are suspended from sash cords that run over pulley wheels positioned at the uppermost section of the frame.
Raise the lower sash and the weights drop down on the opposite side. Let go of it and they hold the sash perfectly in place!
Sash and case windows slide vertically, whereas casement windows open outward on hinges.
Each sashes operate independently of one another, allowing you to open the window from the top, the bottom, or indeed both simultaneously. This provides your home with exceptional ventilation control, entirely without a panel swinging inward into the room or outward towards the street.
When the system is functioning as it ought to, you barely give it a second thought.
When the cords break, as they often do with years of use, the sash falls and stays stuck or becomes hard to operate.
That is exactly where Woodfellas steps up.

Timber sash window services and refurbishment
Not every period sash window requires the same solution!
Our sash windows team in Irvine genuinely takes the time to get to grips with exactly what your windows need, so they can advise whether repair or refurbishment is the right route for you!
Window draught-proofing
A full window overhaul is the smart move when the existing frame is structurally solid yet just not delivering the goods!
Our skilled craftsmen use traditional joinery techniques to improve your glazing and fit draught-proofing throughout.
A refurbished sash and case window in your Irvine house ought to seem as though it was already exactly as it should be.
Easy to operate, quiet in the frame, and cosy in the room. That is the standard we work to every time.
Sash cord and weight replacement
Sash cord replacement remains the most frequently undertaken repair within the services we offer.
When the cords break, the weights lie idle within the case with no connection attaching them to the sash.
We remove the pocket cover, remove the weights, install new sash cords, and align the pulleys correctly.
Our team will always check the full condition of your window while on site, so completely nothing gets missed!
Timber repairs
Bottom rails and sills take the full brunt of Irvine’s harsh weather climate.
Where the rot is localised to a particular section of the rail, we remove carefully the affected timber and fit new sections using carefully matched traditional wood. The repair integrates seamlessly with the surrounding timber, while the remainder of the original window remains completely intact.
We are firmly of the view that there is no need to sacrifice a window that remains structurally sound simply because an isolated issue affects only one part of it.
Supplying and fitting bespoke sash windows
When a window is beyond economical repair, we manufacture new sash windows to your precise specifications in our workshop and supply and install them at your property.
Every replacement window is skilfully crafted and tailor made in hardwood or treated pine. We carefully ensure to match the profile, proportions, and glazing bar pattern of the original window.
As manufacturers of timber windows proudly rooted in Irvine, we make and install new sash and case windows across the region, honouring traditional techniques and using only the finest quality materials.
Our selection of sash and case windows encompasses everything from a single replacement sash through to a complete set of new windows for a listed building.
Double glazing and enhanced security hardware are included as default features.
Double glazed sash windows in Irvine
Transform your home and everyday living experience with beautiful double glazed sash and case windows!
Our slim-profile sealed units are made to fit neatly within the original glazing rebate, leaving the sash profile and glazing bar pattern completely unchanged.
From the exterior, the timber window appears identical to the original.
Here is the reason so many homeowners across Irvine are deciding to upgrade their traditional sash and case windows with double glazing.

Energy efficiency
Our glazing service provides a substantial boost to your home’s energy efficiency.
This means lower energy bills as your heating system works less to keep a comfortable temperature in your home.
Noise reduction
The reduction of noise is another advantage that homeowners often notice nearly immediately.
If your home is located on a busy road or close to a major junction, double glazed sash windows reduce noise transmission significantly!
Sash and case windows in Scotland’s conservation areas and listed buildings
Scotland’s architecture is striking, rich in rich historical significance.
The character of conservation areas is something worth protecting with great care, and sash and case windows form a meaningful part of that architectural identity. Safeguard the integrity of your property through expert timber window restoration carried out by Woodfellas.
If your property is located within one of these designated areas, or if it has listed building status, the regulations governing window replacement are precise and need to be understood before any work is commissioned.
For more than twenty years, we have been working with properties located in conservation areas.
We know precisely what the council needs, how to navigate the consent process with assurance, and how to repair or renew windows in a manner that meets every requirement without needless delays or further correspondence.
For a team that knows listed buildings and conservation area work as well as they understand the windows themselves, get in touch today for a complimentary site visit and written quote.
Sash and case window faults we fix in Irvine
The sash is sliding down and not remaining in the open position.
A broken sash cord is the single most frequent repair we carry out on sash and case windows, and as long as the window itself remains in good condition, it is a very straightforward task for our experienced team.
Draughts and rattling
The draught seal between the sash and the frame has either deteriorated or was never fitted at all. A sash and case window suffering from draughts will also tend to rattle noisily in the wind due to this very gap!
Having draught-proofing included as part of a service package helps address all concerns at once.
Rotten bottom rail
The bottom rail of the lower sash is the weakest part of a sash and case window.
Where the rot is limited to a specific section of the rail, we remove the damaged timber and fit fresh new sections using closely matched material!
The rest of the original window remains completely undisturbed.
Window stuck shut by paint
Years of coatings applied to the sash to protect it from Scotland’s damp climate can make it become stuck to the frame.
We free the sash from its binding, carefully clean every surface, adjust the fit wherever, and restore the mechanism to smooth and proper working order once again.
The cords, pulleys and fittings are inspected throughout the process, spare you from having to carry out several repair jobs.
Single glazing
Original single-glazed panes surrender their warmth with remarkable ease and provide little resistance to the clamour of the street beyond. We swap them out with double glazing whilst retaining every detail of the window’s outward appearance completely intact.
Sash and case windows Irvine FAQs
Is it better to refurbish sash and case windows or replace them?
If refurbishment or replacement is the best way forward depends entirely upon the condition of the existing window structure. When the box frame remains sound and the sashes are structurally intact, refurbishment presents itself as a very sensible choice, providing a window that performs beautifully whilst preserving every last trace of its original character. However, if the frame has deteriorated severely or the timber has rotted beyond any hope of repair, replacement becomes the far more practical and logical course of action.
Can sash and case windows take double glazing?
Yes! We fit slim profile sealed units that sit neatly within the existing glazing rebate without altering the sash or changing the glazing bar pattern. From the outside the window appears absolutely identical to the original.
Get a free quote for sash and case windows in Irvine
Whatever your sash window needs may be in Irvine, whether repairs, restoring, or full replacement, Woodfellas is fully equipped to help.
Get in touch to our friendly team today and we will help you determine the ideal solution for every window in your home. Every quote we offer is complimentary, written, and comes with completely no obligation whatsoever. Should you choose to proceed, we will arrange everything around your schedule.
Every window and door is crafted within our own workshop using traditional methods and fitted by our own joiners throughout Scotland.
Call us today on 07920 057592 or complete the form on our contact page and we will get back to you within 24 hours!