Top HVAC Services in Littleton, CO - 734 Reviews

Expert HVAC Solutions in Littleton & South Denver

About Southwest HVAC

Southwest HVAC has been keeping Littleton and South Denver comfortable since 1973 with expert heating, cooling, and indoor air quality services. From AC repair and furnace replacement to duct cleaning, humidifiers, and UV air purification, their team delivers reliable comfort backed by a 100% satisfaction guarantee and their unique “One-Year Test Drive.” Trust their decades of experience to keep your home efficient, safe, and comfortable—schedule your service today!

Services

  • Heating Services
  • Cooling Services
  • Indoor Air Quality
  • AC Repair
  • Furnace Replacement
  • Duct Cleaning
  • Humidifiers
  • UV Air Purification

Areas Served

  • Littleton
  • South Denver
  • Colorado
  • Surrounding Areas

Features

  • 100 Percent Satisfaction Guarantee
  • One Year Test Drive
  • Decades of Experience
  • Reliable Comfort
  • Efficient Home Solutions
  • Safe and Comfortable
  • Expert Team

Location

Open Hours

Monday 07:30am - 04:00pm
Tuesday 07:30am - 04:00pm
Wednesday 07:30am - 04:00pm
Thursday 07:30am - 04:00pm
Friday 07:30am - 04:00pm
Saturday 07:30am - 04:00pm
Sunday 07:30am - 04:00pm

Reviews

4.8
734 Reviews on
Karen Squire
Karen Squire
September 24, 2026
Very friendly and helpful. Answered all questions thoroughly.
Terri Terry
Terri Terry
September 23, 2026
Joe was great, explained what needed to be done and completed the work in a timely manner. He is always professional.
Alexandra H. Band
Alexandra H. Band
September 17, 2026
Southwest Heating & Cooling actually CARES. They came out on exceedingly short notice today and quite literally helped save a real estate deal for me. Mike was spot on with his diagnosis based on a text and pictures, and he made sure Joe arrived with the necessary part in hand and ready to install. Joe got the issue taken care of quickly, and what could have become a major last-minute problem was resolved. As a...
John Manske
John Manske
September 17, 2026
Edward Stephenson
Edward Stephenson
September 16, 2026
I am selling a condo that the buyers used an inspector from hell.Southwest installed the system two years ago so I asked them to provide an inspection by an authorized technician. The buyers tortured me with stupid questions about various components of the system. I had to pester Joe my Technician and Lisa the office manager with picayune questions and details. They very patiently and professionally helped me every step of the way.

Topics

Indoor Air Quality in Littleton, CO
Heating Services in Littleton, CO
Cooling Services in Littleton, CO
Duct Cleaning in Littleton, CO
Ac Repair in Littleton, CO
Furnace Replacement in Littleton, CO
Humidifiers in Littleton, CO
Uv Air Purification in Littleton, CO
Littleton Hvac in Littleton, CO
South Denver Hvac in Littleton, CO
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