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Not quite sure what that noise is? Need to have your filter replaced? My Guy Heating and Air is here to help keep your HVAC system in great shape. See our full list of services below.

We offer a military discount! Learn more

  • Furnace repairs
  • Air conditioning repairs
  • Filter replacement
  • System tune-ups
  • Furnace replacements
  • Air conditioning installations
  • Whole House Humidifier
  • Maintenance
  • Furnace installations
  • Air conditioning replacement
  • Whole House Air Cleaner & Purifier
  • Ductless systems

HVAC Services


Complete Check-Up

A lot can go wrong when it comes to your HVAC system. Our expert technicians will diagnose any issues, and advise you on the necessary repairs.


Thermostat Repair

The problem with your HVAC system might actually be a problem with your thermostat! We’ll help you figure out what’s going on.


Preventative Maintenance

Regular maintenance can help extend the lifespan of your HVAC system, reducing the risk of costly breakdowns.


Installations & Replacements

Upgrading to an energy-efficient HVAC system could significantly reduce your monthly energy bills! Have your system professionally installed by our team today.

Air Quality

Air Quality Services


Filter Replacement

A dirty filter doesn’t just spread dust and allergens throughout your home—it also makes your HVAC system work harder! We’ll take care of your filter replacements so you can breathe easy.


Whole-Home Humidifiers

Tired of dry, itchy skin and excess static? We’ve got you covered. Install a humidifier in your home, and enjoy an ideal indoor environment all year long.


The Service You Need.
The Guy You Trust.

Services Furnace Maintenance

Furnace Maintenance

  • Tune-up
  • Testing for leaks
  • Inspect thermostat
  • Inspect belts and circuits
  • Lubricate any moving parts
Services AC Maintenance

Air Conditioner Maintenance

  • Check refrigerant levels
  • Compressor and lines
  • Lubricate all moving parts
  • Inspect thermostat
  • Clean evaporator and condenser coils

Ask us about our maintenance Comfort Plan!

Learn More


Leonard is exceptional! He was referred to us by friends, and delivered in every way. He arrived on time, fully diagnosed our HVAC issues, and comprehensively outlined our repair options. He was completely honest, and never once tried to upsell us on any products; in fact, he did just the opposite. He is extremely professional. I highly recommend him!

Ryan C

I’m so impressed and thankful for Leonard! He’s honest, and his pricing is the BEST out there. He was able to figure out what is wrong with our furnace and fixed it! He made sure our system was nice and clean before he left. Very impressed, I would highly recommend him!

Rachel P

Referral Program
Refer a friend and get $50 when we service their equipment.
We wear masks, gloves, booties, & sanitize tools before and after each visit.
Financing Options
We offer financing through WiseTack.
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Frequently Asked Questions


Why should I have my furnace or air conditioner maintained?

Murphy’s Law states that your furnace will likely quit on the coldest night of the year (or the hottest day of the summer, for your air conditioner). Having your system regularly maintained reduces the risk of costly breakdowns.


Why are some rooms in my home too hot or cold?

Feeling a bit like Goldilocks? We can help. Uneven temperatures throughout your home can be caused by many things—including the wrong size of system, improper installation of ductwork, and more.


Why is my furnace or air conditioner making a funny noise?

HVAC systems are full of many moving parts, including fans and compressors. If your system is making a rattling or whining noise, give us a call and we’ll come take a look.

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Physical Address

My Guy Heating and Air, LLC
4645 Colorado River Dr.
Firestone, CO 80504

My Guy Heating and Air, LLC BBB Business Review

Hours of Operation


After Hours Available

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