Licensing, red flags, and the exact questions to ask before you hire an HVAC company in Spokane or North Idaho. A no-nonsense checklist from a contractor that’s been doing this since 1984.
We’re going to say something most contractors won’t say in their own blog post: you shouldn’t automatically hire us. You should hire whoever actually meets the bar below — and if that’s someone else, so be it. But after four decades in this business, we’ve seen what happens when homeowners and facility managers skip the vetting step, and it’s rarely pretty. Here’s what actually separates a solid HVAC contractor from a risky one.
Why This Decision Matters More Than It Seems
An HVAC system is one of the largest single purchases most homeowners make outside of a car or a house — a full furnace and AC replacement in the Spokane market commonly runs anywhere from $8,000 to $20,000+ depending on equipment and ductwork needs. Commercial rooftop replacements run higher still. Get the sizing wrong, the installation wrong, or the contractor wrong, and you’re not just out money — you’re living or working with a system that’s uncomfortable, inefficient, or breaking down for the next 15-20 years.
Step 1: Confirm the License Is Real and Current
This is the non-negotiable first filter. In Washington, HVAC/mechanical contractors need an active contractor registration through L&I, and in Idaho, a public-works-eligible license where applicable. Don’t take a truck magnet’s word for it — you can look up a Washington contractor’s license status directly. Ask for the license number and cross-check it yourself. A legitimate contractor will give you this number without hesitation, usually before you even ask.
Also ask specifically:
- Are your technicians EPA Section 608 certified? This is federally required to legally handle refrigerant (details here).
- Are techs NATE certified? This is a voluntary but respected industry credential that signals real technical training, not just on-the-job trial and error.
- Are you licensed in both states if you’re near the WA/ID border? A contractor working in Spokane, Spokane Valley, Liberty Lake, or Cheney and also servicing Coeur d’Alene, Post Falls, or Hayden needs to be properly licensed in both Washington and Idaho — not just one.
Step 2: Check Insurance, Not Just License
A license tells you the company can legally do the work. Insurance tells you what happens if something goes wrong — a fire, a flooded ceiling, an injured worker on your property. Ask for:
- General liability coverage (and how much — $1M–$2M is typical for a company doing residential and light commercial work)
- Workers’ compensation coverage for their crew
- Commercial auto coverage if trucks will be on your property
A reputable company can produce a certificate of insurance on request, often within the day.
Step 3: Read the Reviews — But Read Them Correctly
Star ratings alone don’t tell you much. What matters more:
- Volume and recency. A company with 65 reviews collected steadily over years tells you something different than one with 8 reviews all posted last month.
- How they respond to negative reviews. Every contractor gets an occasional bad review. Look at whether they respond professionally and try to make it right, or get defensive.
- What reviewers are actually describing. Look for detail — “explained what was wrong before doing the work,” “the invoice matched the estimate,” “showed up when they said they would” — over generic five-star praise with no specifics.
Step 4: Ask These Six Questions Before You Sign Anything
- “Will I get a written estimate before work starts?” A verbal number (“should run you around five grand”) isn’t a quote — it’s a guess. You want line items.
- “If you find something once the job is opened up, what happens?” The right answer involves stopping and calling you before proceeding, not a surprise on the final invoice.
- “Who’s actually doing the work — employees or subcontractors?” Not necessarily a dealbreaker either way, but you want to know.
- “What’s your response time for emergencies?” Get a real number, not “as soon as we can.”
- “Do you pull permits?” For most installs and equipment replacements, yes, they should. Skipping permits can create real problems when you sell the house or file an insurance claim.
- “What’s covered under warranty, and for how long?” Manufacturer parts warranty and labor warranty are two different things — ask about both.
Red Flags Worth Walking Away From
- High-pressure, same-day-only pricing. “This price is only good if you sign today” is a sales tactic, not an honest assessment of your system.
- No physical address or a P.O. box only. You want a company with an actual shop and a service area you can verify, like ours at 6315 E. Sharp Ave. in Spokane Valley.
- Diagnosing over the phone. A responsible tech won’t quote a repair price sight unseen for anything beyond the most basic issue.
- Refusing to explain the “why.” If a tech tells you the system needs replacing but can’t explain the actual failure in plain language, that’s worth a second opinion.
- Cash-only, no invoice. You want a paper trail — for warranty claims, insurance, and resale value.
Residential vs. Commercial: Make Sure They Actually Do Both Well
If you’re a facility manager or business owner, ask pointedly about commercial experience — rooftop units, chillers, walk-in refrigeration, and multi-tenant systems are a different discipline than a single-family furnace swap. A contractor that says “sure, we do commercial too” without concrete examples may be learning on your building. Ask for two or three commercial references you can actually call.
A Quick Comparison Checklist
What This Looks Like at AMS
We’re not going to pretend we’re the only legitimate option in the Inland Northwest — there are other good contractors in this market. What we can tell you is where we land on every point above: licensed in both Washington and Idaho, EPA 608 and NATE certified techs, $2M general liability, written estimates on every job, and 65+ Google reviews built up since 1984 — not manufactured in a weekend. You can read our full credentials on our about page or see answers to the most common questions we get on our FAQ page.
Whoever you choose, use the checklist above. It’s the difference between a contractor relationship that lasts fifteen years and one that costs you twice.
Want a written estimate to compare against another contractor’s quote? Schedule a free consultation or call (509) 534-0547.