About WindowTally
WindowTally helps U.S. homeowners answer one question before they call contractors: what should replacing my windows cost here? The calculator is free, needs no email, and shows its math.
Why we built it
Most window cost tools either hide the price behind a "get quotes" form or give one national number. Real prices depend heavily on where you live and who installs the windows. We built WindowTally on public government data so every estimate can be checked: local installer wages from the U.S. Bureau of Labor Statistics, matched to your ZIP code with U.S. Census files, plus published window prices. The full formula is on our methodology page.
Who we are
Arsalan Nasar, founder and editor
Arsalan Nasar is the founder of ZIRA Technologies, a software company that builds web tools and data products. He built WindowTally’s pricing model from U.S. Bureau of Labor Statistics wage data and U.S. Census geography files, and maintains the site’s data, methodology and guides.
WindowTally is published by ZIRA Technologies.
How we stay independent
- We don't sell windows or installation, and we aren't paid by window brands or installers.
- We don't collect your contact details or sell leads to contractors.
- The site will be funded by advertising. Ads never change an estimate, and we'll label them clearly.
- When a number is our own estimate rather than published data, we say so.
Corrections
If your written quotes are far from our estimate, please tell us with your ZIP code and window details. Real quotes are how we check and improve the numbers. We record changes to our data on the data sources page.