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My Guy Heating and Air (Firestone)

4.9 165 reviews
Overall rating
4.9
out of 5
165 reviews
5 star 96%
4 star 2%
3 star 1%
2 star 0%
1 star 1%

About My Guy Heating and Air (Firestone)

My Guy Heating and Air is a trusted company that offers honest, efficient, and reliable Heating and Air Conditioning services to residential and light commercial clients. The business prides itself on treating customers with integrity and providing quality service at a fair price. Customers have praised the company for its quick response, flexible scheduling, and thorough problem-solving. Installation, service, and repairs are available for all cooling and heating needs. With friendly and courteous technicians, same-day service, and a focus on customer satisfaction, My Guy Heating and Air remains a highly recommended choice for homeowners and businesses alike. Customers have noted that the team is very polite, professional, and clean, with clear explanations of work being done. The installation process is quick, and the units perform very well, especially in rooms that are usually difficult to cool. The technicians are informative and do a great job, ensuring a high level of service with no upselling or unnecessary charges.

Oct 2026
4.0
HVAC replacement. The response and bid were quick and seamless. The installers were just so conscientious, funny and fast. The personal experience was excellent. The only glitch was the team did not seem to know the complete rules of replacing the old exhaust and air intake. This required more visits from the inspector. Even with the extra time and effort, I highly recommend My Guy.
Oct 2026
5.0
Bryan Lundstrom came back today to finish the work. He’s so pleasant and goes above and beyond. Was genuinely concerned about making us happy. Best customer service I’ve had in a long time. Great service!
Sep 2026
5.0
Routine inspection & testing (as part of a their service program) of Lennox system was performed. Issues id’ed included unacceptable weak blower motor capacitor, worn contactor, dirty blower, dirty condenser fins, and dirty evaporator condensate tray. David was highly knowledgeable, thorough, experienced, and dedicated to excellence and customer satisfaction. Also discussed were ways to improve system efficiency and reliability. My experiences with My Guy HVAC is far superior to competing firms I have used and I highly recommend them to others who want high value for their HVAC needs.
Photos of My Guy Heating and Air (Firestone), 4321 Mulligan Street,  Longmont
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Hours

Monday 8AM - 5PM
Tuesday 8AM - 5PM
Wednesday 8AM - 5PM
Thursday 8AM - 5PM
Friday 8AM - 5PM
Saturday Closed
Sunday Closed

Good to know

  •  on-site services 
  • no online estimates
  • accepts credit cards
  • offers military discount

Location

4321 Mulligan Street, Longmont, CO 80504

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My Guy Heating and Air (Firestone) · 4321 Mulligan Street, Longmont, CO 80504

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