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Serving the South-Metro Denver Area

303 791-2679


Air Conditioning and Heating Services in Littleton, CO

For 45 years, Southwest Heating and Cooling has been a trusted name in air conditioning and heating in Littleton, CO and throughout the Denver metro area. Our service technicians are NATE–certified and can work on both residential and commercial properties. We offer 24/7 emergency services for homes and businesses, with friendly service technicians and customer service representatives that make the whole process easier.

We’re proud to be one of the largest elite Comfort Specialists for Trane, but we service all makes and models as well. We are so confident in the services we provide, that we guarantee you will be 100% satisfied with your system and our services, or we will make it right.

Southwest Heating and Cooling is one of Trane's largest Elite Comfort Specialist Dealers

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We are dedicated to making sure every customer is 100% satisfied.

We have been pleased with all of the techs that have come to our home for their knowledge, suggestions and fairness.

- Cheryl

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We offer complete heating and air conditioning services for homes throughout the Denver Metro area. Our NATE–certified technicians are trained not only to provide the best services they can offer, but to find you the best deal. We specialize in securing the absolute highest Xcel Energy rebates in the market. When you need a new AC system, furnace, boiler, or air purifier, or when you need prompt service for your comfort system, give us a call! Read more


Our commercial services cover everything you need to keep tenants, employees, and clients as comfortable as possible. As Trane elite Comfort Specialist Platinum Level Dealers, we can install some of the top equipment on the market. We will keep it professionally maintained so you don’t have to worry about so many sudden repairs. And when you do need service, we can be there promptly, without getting in the way. Read more


Routine maintenance of your air conditioner, heater, and water heater is the best way to ensure your system works as reliably as possible. Annual tune–ups help to keep energy and fuel costs low and prevent system breakdowns. When you join our Preferred Customer Service Maintenance Program, you get annual maintenance services along with 15% discounts on repairs throughout the year! Read more

Water Heaters

We also service and install tank and tankless water heaters. Tank water heaters are trusted and dependable systems, but tankless water heaters can dramatically reduce your monthly energy usage. Talk to our service technicians to find the right system for your home. Our water heater services include flushing and descaling tanks, replacing anode rods, detecting leaks, and much more. Contact our friendly team today. Read more

Colorado Comfort Tips

How Furnace Maintenance Keeps You Safe

Schedule your furnace maintenance services before spring is in full swing!

All About Furnace Replacement

Did you have a long list of problems with your furnace this winter? It might be time for you to replace.

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