Materials
Conservatory frames come in three materials — uPVC, aluminium and timber — and the choice affects cost, appearance, maintenance and how well the frame performs in Scotland's weather.
uPVC is the most common conservatory frame material in Glasgow, because it is the lowest cost option and needs no painting or treatment.
uPVC frames are extruded with internal steel or aluminium reinforcement in larger spans, and are available in white, anthracite grey and a range of foiled finishes.
Aluminium suits larger openings and contemporary designs, because its strength allows slimmer sightlines than uPVC for the same span.
Aluminium is the standard choice for orangery lanterns and large sliding or bi-fold sections, and takes powder-coated finishes in almost any colour.
Timber suits period Victorian and Edwardian properties where an authentic painted finish matters more than low maintenance.
Modern timber frames are factory-finished with a microporous paint system and typically need repainting every 6 to 8 years. Engineered timber (laminated sections) resists warping better than solid timber in Scotland's damp climate.
Frame material typically moves the total conservatory price by 10 to 20 percent between the cheapest and most expensive option, for the same style and roof.
| Material | Relative cost | Maintenance | Typical lifespan |
|---|---|---|---|
| uPVC | Lowest | Wipe clean, no repainting | 25–35 years |
| Aluminium | Mid to high | Wipe clean, no repainting | 35–45 years |
| Timber | Highest | Repaint every 6–8 years | 40+ years with maintenance |
Aluminium and uPVC both handle Glasgow's rainfall and wind exposure with no ongoing maintenance, while timber needs a regular repainting schedule to stay weathertight.
For the more exposed parts of the west of Scotland, aluminium's strength under wind loading is a genuine advantage over uPVC in larger spans.
