# Window Energy Savings Calculator | Toronto Quality Windows

> Estimate annual heating savings from Energy Star Zone C window upgrades in the GTA.

URL: https://torontoqualitywindows.ca/tools/energy-savings-calculator/

\[ Free Tool \]

# Window Energy Savings Calculator

Estimate potential annual heating savings from upgrading old windows to Energy Star Zone C systems.

Annual Heating Cost

Roughly what you spend on heating per year

Current Window ConditionOld single-pane / very draftyAging double-paneNewer but inefficient

Estimated Annual Savings

$360

10-Year Savings

$3,600

Estimates only. Actual savings vary by home, usage and energy prices.

#### See What You Could Save

Ask about Energy Star Zone C systems and Canada Greener Homes rebates.

Prefer to talk it through?

Call (437) 524-9688

[tel:+14375249688 →](tel:+14375249688)

![](/images/misc/installation-crew-finishing-a-row-of-new-windows-o.webp)

Free in-home consultation across the GTA

## Want the Real Number?

A free in-home measurement gives you itemised pricing per opening, with the glazing package and install method stated in writing.

Get a Free Quote

[/contact/ →](/contact/)

 

(437) 524-9688

[tel:+14375249688 →](tel:+14375249688)

-   10-year labour warranty
-   In-house crews, never subcontractors
-   Energy Star Zone C certified