Skip to content Short answer: Aluminum is the most common choice — durable, humidity- and corrosion-resistant, and
relatively cost-efficient, but it conducts heat more easily. PVC (uPVC) costs more but offers better
thermal insulation, which is why it’s often chosen for luxury or energy-efficient designs.
Why it matters: These aren’t interchangeable defaults — the right choice depends on how much you’re
prioritizing upfront cost versus long-term energy performance.
What to check:
● Ask whether aluminum frames in your design will need upgraded glass or insulation strategies to
offset heat conduction
● Compare the actual price difference for PVC on your specific window sizes, not just a general
rule of thumb
● Match your choice to how much of your home’s cooling load comes from window heat gain
Bottom line: Aluminum is the practical default; PVC is the upgrade for buyers prioritizing thermal
performance over upfront cost.
Unleash Your Home's True Potential
Aluminum vs. PVC windows — which is right for my home?
Aluminum is the common choice: durable, corrosion-resistant and cost
efficient, but it conducts heat. PVC costs more and insulates better, which is why
luxury and energy-focused builds use it
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