I am Derek Smith, owner of Smiths Windows and Doors. We are a family run business with over 30 years' experience in the double-glazing industry. We know exactly what our customers require. From the moment you pick up the phone until your job is complete, we promise a pleasant laid back and professional approach. You are in safe hands, and we hope to see you soon.

Waste Reduction

Innovative manufacturing processes virtually eliminate any material wastage. Our recycling facility has the capacity to reduce the amount of waste material going to landfill by up to fifty-five tonnes per week. In fact, we ensure that all our frames feature up to 80% recycled material.

Double Glazing Glasgow

Carbon Emissions

Energy efficient by design. Multi-chambers within the profile system significantly reduce heat and energy loss from inside the home. By selecting our frames, you could reduce frame carbon emissions by up to 70%.

Energy Efficiency

Our products are designed for maximum energy efficiency. You can be sure of only the highest standards in performance, thermal efficiency, and sustainability. Select triple glazed windows for whole window U-values as low as 0.8 W/m2K.


Lead-free products are in high demand in today’s current climate, especially in PVCu products. All products are therefore 100% lead free, ensuring the frame retains its long-term appearance and performance.

Double Glazing Glasgow