HVAC in Grafton, WI.
Jason L Katz appears in Wisconsin license records as an HVAC contractor based in Grafton, WI. The record lists a UDC HVAC Inspector license (#042200036) with status “Active”. It is listed as valid through 2029-06-30.
Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.
This listing was created from public license records. The owner hasn’t claimed it yet — claim it now and we’ll build you a free professional website at bidroom.io/pro/jason-l-katz.
This listing has no public contact info on file. Create a free Bidroom account and message via the app — we'll route your request to Jason L Katz (and notify them to claim their profile).
Create a free accountCheck license #042200036 on the Wisconsin licensing authority lookup and the BBB the day you hire; status can change after Bidroom's last import (2026-05-12).
Jason L Katz is an HVAC contractor based in Grafton, Wisconsin. Their license classification is UDC HVAC Inspector.
Yes. Jason L Katz holds Wisconsin licensing authority license #042200036 (status: Active). Verify the current status on Wisconsin licensing authority before hiring.
Jason L Katz is based in Grafton, WI 53024.
Contact information (phone, email, website) is shown to anyone with a free Bidroom account. Create a free account to reveal Jason L Katz's contact details, then subscribe if you'd like to message them in-app.
The fastest way is to post your project on Bidroom — Jason L Katz and up to 2 other verified HVAC contractors in Grafton can bid on it, and every quote includes itemized pricing + a written scope of work.
Not yet. This listing was created from public Wisconsin license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.
Contractor vetting checklist · Cost guide · Look up this license at the state board