How to Choose an HVAC Contractor (Red Flags to Avoid)
The biggest red flag in choosing an HVAC contractor is a quote that comes in thousands of dollars below every other bid you got. That gap has to come from somewhere, and it's usually unlicensed labor, no permit, cut-rate equipment, or a plan to pad the bill later with "surprise" issues once the job has started. Beyond price, watch for missing licensing, vague written estimates, no mention of a permit, and pressure to sign the same day.
Why the Lowest Bid Is Often the Most Expensive One
A legitimate HVAC company quoting thousands less than everyone else is doing it by cutting something you can't see at the time of the quote: skipping the permit, using a smaller or lower-quality line set, sending a single unlicensed installer instead of a trained crew, or planning to hit you with change orders once your old system is already torn out and you're not in a position to say no. Comparing three quotes side by side is the easiest way to spot an outlier before it becomes your problem.
Licensing and Insurance Aren't Optional
Texas requires HVAC contractors to hold a state license through the Texas Department of Licensing and Regulation, and a legitimate company will give you that license number without hesitation. Ask about liability insurance and workers' comp too. If a worker gets hurt on your property and the contractor isn't properly insured, that liability can land on you as the homeowner, not the company that sent an uninsured crew to your house.
The Permit Question Tells You Everything
Every North Texas city requires a mechanical permit for a full HVAC replacement, and that permit triggers an inspection that verifies the work meets code. A contractor who doesn't mention a permit on the quote is either planning to skip it, which is illegal and can void your equipment warranty, or planning to charge you for it separately after you've already committed. Either way, ask directly and get the answer in writing before you sign anything.
- Get at least two, ideally three, written quotes for any full system replacement
- Confirm the TDLR license number and ask for proof of insurance
- Make sure the permit is explicitly included in the written quote
- Be wary of any contractor pushing you to sign same-day with a scare tactic about your current system
- Ask what brand and model number is actually being installed, not just the tonnage and SEER2 rating
A Legitimate Quote Takes Time to Put Together
A contractor who quotes a full system replacement over the phone without seeing your attic, your ductwork, or your electrical panel is guessing, and that guess tends to turn into change orders once the crew shows up and finds something the phone quote didn't account for. An in-person visit before a firm number is a basic sign of a contractor doing this the right way.
Metroplex Air & Heat provides its TDLR license number and proof of insurance on every quote request, and every full system quote includes an in-person visit and the permit cost spelled out in writing before any work is scheduled.