How to Choose the Right HVAC Contractor in Denver: 7 Questions to Ask Before Hiring

Whether you need an emergency A/C repair or a new furnace installed before winter, choosing the right HVAC contractor in Denver can mean the difference between peace of mind—or a long list of regrets.

At MoJo, we’ve heard the horror stories: unexpected charges, poor workmanship, systems installed without permits, and techs who ghost after the job is done. We want to help you avoid all of that.

Here’s a guide to choosing the right HVAC company for your home, plus the exact questions you should ask before signing anything.

1. Are You Licensed and Insured?

Don’t take chances with unlicensed contractors. In Colorado, HVAC companies must be licensed and carry both liability insurance and workers' compensation.

✅ Ask for proof of:

• Colorado state HVAC license

• Liability insurance (to protect your home)

• Workers’ comp (to protect you from liability)

A legit contractor should provide this without hesitation.

2. What Experience Do You Have in the Denver Area?

Denver’s climate is unique—freezing winters, hot summers, high altitude. Your contractor should know how to size systems properly, account for local building codes, and recommend systems that thrive in Colorado’s dry air.

At MoJo, we’ve served the Denver metro for 16+ years, so we know exactly what homes here need—and what brands work best.

3. What’s Included in the Quote?

Too many homeowners have been burned by "surprise" costs.

✅ Always ask for:

• A detailed, written estimate

• Clear info on labor, materials, permits, and warranties

• An explanation of what’s not included

Pro Tip: Be wary of the lowest bid. If it sounds too good to be true, it usually is.

4. Do You Offer a Warranty?

Any reputable HVAC company should stand by their work with a parts and labor warranty.

✅ Ask:

• What’s the warranty on labor?

• What’s the warranty on equipment?

• Who handles the warranty—your company or the manufacturer?

At MoJo, we offer 2-year warranties on repairs and install warranties depending on equipment.

5. Do You Pull Permits and Handle Inspections?

In Denver, HVAC replacements usually require a permit and city inspection. Contractors should handle this for you. If they tell you to pull the permit yourself, that's a red flag.

✅ Ask:

• Will you pull the necessary permits?

• Will you be present for inspections?

We handle all permits and inspections to keep you 100% compliant.

6. What Do Past Customers Say?

Online reviews matter. Look for a track record of consistent 5-star feedback, not just flashy ads.

✅ Check:

• Google Reviews

• Nextdoor

• Yelp

• BBB Accreditation

MoJo has hundreds of 5-star reviews, and most of our work comes from referrals.

7. What’s Your Availability and Communication Like?

You want a company that answers the phone, shows up on time, and communicates clearly.

✅ Ask:

• How quickly can you schedule service?

• Do you have emergency hours?

• Can I text, email, or call?

We offer fast service, emergency repairs, and text-friendly communication through our website and team