HVAC in Green Bay, WI.
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/demoulin-hvac-llc.
Contact info is revealed to anyone with a free Bidroom account. Create yours to unlock contact details across our 1.6M-contractor directory — then subscribe if you'd like to message verified pros directly inside the app.
Create a free account Or subscribe to message in-appBidroom indexed this listing from public Wisconsin license records. Before signing a contract, take 2 minutes to verify the credentials yourself using the official sources below.
A valid license number on file doesn't guarantee current status. License standing can change — always verify on the state board the day you hire.
Demoulin Hvac Llc is a hvac based in Green Bay, Wisconsin. Their license classification is HVAC Contractor.
Yes. Demoulin Hvac Llc holds Wisconsin licensing authority license #1149296 (status: Active). Verify the current status on Wisconsin licensing authority before hiring.
Demoulin Hvac Llc is based in Green Bay, WI 543119779. Most hvacs serve a 25–50 mile radius from their home base, but always confirm coverage before requesting a bid.
Contact information (phone, email, website) is shown to anyone with a free Bidroom account. Create a free account to reveal Demoulin Hvac Llc's contact details, then subscribe if you'd like to message them in-app.
The fastest way is to post your project on Bidroom — Demoulin Hvac Llc and up to 2 other verified hvacs in Green Bay can bid on it, and every quote includes itemized pricing + a written scope of work.
$4,000 – $12,000 per system is the typical range. New AC install $4K–$8K. Heat pump install $6K–$12K. Annual service contract $150–$400. Local market rates in Green Bay may run higher than this baseline.
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.
Quick checklist any homeowner can use — these are the 8 things that distinguish hiring well from getting burned.
Itemized scope + materials + timeline. One quote is a guess; three is data.
Look up the number directly on Wisconsin licensing authority — not just a screenshot from the contractor.
General liability AND workers' comp. Have the insurer email it directly — never accept a PDF from the contractor.
Same trade, same scope, completed in the last 12 months. Call them.
Scope, payment schedule, start & completion dates, change-order process, warranty terms.
Standard: 10–30% deposit, progress draws tied to milestones, final 10% on punch-list completion.
Get a conditional waiver with every payment and an unconditional waiver at final payment. Protects your title.
For anything structural, electrical, plumbing, or HVAC — the contractor (not you) pulls the permit. No permit = no recourse if work fails inspection.
New AC install $4K–$8K. Heat pump install $6K–$12K. Annual service contract $150–$400.
Ranges are national averages. Green Bay market rates may run 10–30% higher in high-cost metros. Get itemized bids to compare apples-to-apples.