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“We felt compelled to write this review of the awesome installation of our heating and AC units yesterday at our home. Our furnace quit working on Sunday and we called Southwest Heating and Cooling company at the recommendation of our neighbor who had theirs replaced several months earlier. They sent out a very knowledgeable technician who quickly diagnosed the unit and gave us a cost of what it would be to get it up and running. Since the furnace is over 20 years old, we decided to replace the heating and ac and they were here the next day to begin the process of dismantling and prep for the new units. They finished the work mid day the next day and we are extremely satisfied with our new quiet running, energy efficient, air purifying system. It has made a night and day difference with my asthma and breathing challenges. No more waking up wheezing and coughing. It has been a game changer. George and Ronnie were exceptional installers and worked consistently hard throughout the whole job. They wore booties and masks and were very conscientious. We also need to give a huge shout out to the owner Mike who worked with us in the selection process of a heating and cooling system that would best meet our needs. We wholeheartedly recommend Southwest Heating and Cooling without hesitation and will continue to use them with our future annual maintenance needs.”

Richard Quinlan

“Had the best service, and we owe it all to Adam Hughs. Knows what he’s doing! Thanks to the company for employing good people, and offering terrific services.”

Vicky Buffington

“Yesterday Chris the technician was here for an annual AC check up and I had some concerns that were not related to the AC. He was very responsive to them. He went beyond what was expected. He help with programming of our thermostat and solved a problem with our humidifier. Southwest should be proud to have a employee of his caliber in there employee.”

Joe Feistner

“The technicians were professional, knowledgeable, informative, and very polite. They did exactly what they said at the price they quoted. I strongly recommend this company!”

Ardell Arko

“I have had Southwest Heating and Cooling service our heater and air conditioning units on several occasions this year and last. We were thoroughly pleased with the high level of service, professionalism, honesty, and skill level of their service representatives. On all occasions they far exceeded our expectations. I would highly recommend Southwest Heating and Cooling to anyone in need of their services.”

Carlos Gonzalez

“I have known Mike McCollum for about 7 years, so when we were needing a new air conditioner I called him. He was very professional and clear about what we needed. The Installer came out and took care of the old unit, leaving us with a beautiful new Air conditioning Unit. He was prompt and courteous and when leaving he cleaned up the area, very nicely. I highly recommend Southwest Heating and Cooling!!”

Jani Duran

“I have been working with Mike for several years on different projects and they are a solid company. I owe a Roofing company and he works directly with me and my clients on hail damage to air conditioning units to get the homeowners back to pre-storm condition. They have always been spot on with pricing and they use quality manufacturers. I would highly recommend them and do on a daily basis. Great local company.”

Michael Dye

“I can’t say enough good things SW HVAC! I have used them several times for both my heater and cooling issues and they are very knowledgeable, efficient and fairly priced. They are my go-to for all my needs. I wouldn’t use anyone else! Thanks SW! Hayden”

Hayden Shamburger

“I had an air conditioner installed by Southwest Heating and cooling. Great communication and professional install. Great follow up from the company. I recommend Southwest Heating and Cooling for all of your HVAC needs.”

Shane Druckenmiller

Why Use Southwest Heating and Cooling?
  • We Have been in Business nearly 50 Years!
  • We give you the cost of the Repair Up Front
  • Absolutely No Hidden Costs or Fees
  • We have an N29 Master Mechanical License – Most Don’t
  • We Guarantee Your 100% Satisfaction with every Repair or Installation


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Proudly Serving All Of South Denver Metro

Since 1973, Southwest Heating & Cooling has provided unmatched HVAC services to all of Littleton, CO and surrounding South Denver Metro areas. It is important to us to serve you and your home as if it were our own. If you live in the area, call (720) 689-0427 to get started!

  • Littleton
  • Lone Tree
  • Highlands Ranch
  • Englewood
  • Centennial
  • Greenwood Village
  • Castle Pines
  • Morrison
  • Lakewood
  • Evergreen
  • Parker
  • Castle Rock
  • Sedalia