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Every old AC on record in your zip, ranked.

Years since each home's last HVAC permit, with the last job on record and the owner's name and mailing address where the county lists them.

Pick your HVAC zipsOpen the demo

One HVAC company per zip. Live in Austin, Los Angeles, Philadelphia, Orlando, Seattle, Washington DC, New Orleans and San Diego: 305 zips, 280,473 homes 12 or more years past their last HVAC permit.

The Changeout Radar leads list for Austin zip 78748: filters across the top, then homes ranked by years since their last HVAC permit, each with its owner, home details and last HVAC work.
The 78748 list in Austin, shown with demo data.

What you get with an HVAC zip

  • Every home in the zip, ranked so the longest since an HVAC permit come first
  • The owner's name and mailing address, where the county lists them
  • The last HVAC job on every home: when, what and which company
  • A map of the zip, and how many homes come due in each of the next five years
  • The owner's phone and email with one tap on Get contact, with Do Not Call numbers marked
  • A log on every home of each call and email, with the date, so you know when a follow-up is due
  • A list you can download for mailers, with Street View and Zillow on every home
  • The zip to yourself, with your whole team on it at no extra cost

$900 to $3,000 a quarter per zip, set by how many homes are 12 or more years past their last permit.

Pick your zipsSee pricing

Recorded in the live demo with demo data. 32 seconds, no sound. Open the live demo

The live demo with demo data, no sound. It picks Texas, shows the zip summary and the heat map, keeps homes 15+ years since HVAC work where the owner lives there, opens one home, logs a call and goes to the next page.

How the HVAC list is built

Where does the HVAC history come from?

City and county building permits. Every mechanical permit on a home is matched to its address, so the list knows when the last system went in, what kind it was and which company pulled the permit. Homes with no HVAC permit on record are ranked by their year built.

What does "12 or more years" mean?

Twelve years since the last HVAC permit on the home, or since it was built when no permit is on record. Most systems are replaced somewhere between 12 and 20 years in, so that is where the list starts.

Who is the owner?

The owner on the county's property file, with the mailing address the tax bill goes to. Where the county does not publish owners, the list shows the address and the HVAC history.

How often is it updated?

Monthly. Your list shows the date of its last update, and new permits show up on the next one.