Why Timber Remains the Only Authentic Choice for Period Windows
A front door, however well restored, only ever tells half the story of a period property's frontage. Windows make up a far larger proportion of any facade's visible surface area, and the material they are made from has a proportionally larger impact on how authentic — or compromised — a building reads from the street.
uPVC has become the default replacement material for British windows over the past four decades largely on the strength of cost and perceived low maintenance, not because it is visually or materially comparable to timber. The differences are not subtle once you know to look for them: uPVC frames are necessarily thicker than timber to achieve adequate structural rigidity, which immediately distorts the proportions and sightlines that period window design depended on. Glazing bars in uPVC "Georgian bar" or "leaded" windows are typically applied to the glass surface rather than genuinely dividing separate panes, producing a flat, printed appearance instead of the dimensional shadow lines real glazing bars create. And uPVC ages visibly and irreversibly — yellowing, chalking, and becoming brittle over fifteen to twenty years in a way that cannot be repaired, only replaced.
Timber windows, built correctly, solve every one of these problems simultaneously. Genuine timber framing can achieve the slender sightlines that Georgian, Victorian, and Edwardian window design actually required, because timber's structural properties allow for narrower members than uPVC needs. Glazing bars in a properly built timber window are real structural divisions between individual panes of glass, creating genuine depth and shadow rather than a surface-applied pattern. And timber, unlike uPVC, can be maintained indefinitely — sanded back, refinished, and repaired rather than discarded when its surface degrades.
The thermal performance gap that once made uPVC a genuinely compelling practical choice has also narrowed substantially. Modern timber windows, built with appropriate draught sealing, weatherproofing, and double or secondary glazing, perform comparably to uPVC on thermal efficiency while retaining everything uPVC cannot offer: genuine repairability, authentic period proportions, and a material that improves with age rather than simply degrading.
At Old English Doors, every window we build — whether casement, sash, or heritage specification — starts from the same principle: the proportions, glazing bar arrangement, and construction method are determined by the property's actual architectural period, not by what is structurally convenient for the material. This is the fundamental difference between a window that looks broadly period-appropriate from a distance and one that is genuinely correct on close inspection.
We design and install bespoke timber windows for period and character properties across Nottingham, Leicester, Derby, Sutton Coldfield, Manchester, St Albans, Birmingham, Coventry, Wolverhampton, Northampton, Warwick, Solihull, and Worcester, working in close partnership with each client to match the specific window type, glazing pattern, and proportions their property's age and architectural style demand.
