Why Choose Us
Trusted Heat Pump Experts Serving South Denver Since 1973
Choosing the right HVAC partner matters—especially when you’re investing in a modern, high-efficiency heat pump system. Since 1973, Southwest Heating & Cooling has been the trusted choice for homeowners in Littleton, Highlands Ranch, Centennial, Castle Rock, Lakewood, and throughout the entire South Denver Metro area.
With more than 50 years of local experience and a true customer-first approach, we offer something many competitors can’t: long-term relationships built on trust, not transactions.
We Specialize in Heat Pumps—Not Just HVAC
Heat pumps are not just air conditioners. They are complete heating and cooling systems that must be designed, sized, and installed correctly to perform well in Colorado’s climate.
At Southwest Heating & Cooling:
Heat pumps are a core focus, not an add-on service
We understand cold-climate performance
We design systems for year-round comfort and efficiency
Whether you’re replacing an aging furnace, upgrading from traditional AC, or planning an energy-efficient home improvement, our expertise ensures your heat pump delivers comfort in every season.
Local Experience Makes the Difference
Colorado homes present unique challenges—elevation, temperature swings, insulation differences, and older construction all affect HVAC performance. Because we’ve worked in South Denver for decades, we know what works here.
Our team understands the specific needs of homes in:
Littleton
Highlands Ranch
Centennial
Castle Rock
Lakewood
And every surrounding South Denver community.
That local knowledge translates into better recommendations, fewer issues, and systems that perform as expected.
Honest Guidance, No Pressure
We believe homeowners deserve clear, straightforward information. Our approach is consultative, not sales-driven.
What that means for you:
No pushy upsells
No one-size-fits-all systems
No confusing technical jargon
No surprise costs
Instead, you get education, transparency, and solutions aligned with your comfort goals and budget.
Built for Long-Term Comfort, Not Short-Term Sales
Many HVAC companies focus on volume. We focus on doing the job right.
Our installations prioritize:
Proper system sizing
High-quality workmanship
Long-term efficiency
System longevity
That’s why so many South Denver homeowners continue to trust us decade after decade.
Rebates, Tax Credits & Financing Made Simple
One of the biggest advantages of upgrading to a heat pump is the availability of rebates.
Many homeowners can significantly reduce upfront costs by combining:
We handle the entire rebate process for you.
From identifying eligible programs to completing and submitting paperwork, our team makes it easy to maximize your savings without added stress.
Contact Us
Why Homeowners Have Trusted Us Since 1973
Serving South Denver for over 50 years
Deep knowledge of Colorado homes and climate
Customer-first service—not sales-driven pressure
Expertise in heat pump and high-efficiency systems
Trusted by generations of local homeowners
Our longevity is built on consistency, integrity, and quality work—year after year.
We Proudly Serve Littleton, Highlands Ranch, Centennial, Castle Rock, Lakewood, and All Surrounding South Denver Communities.
What Your Neighbors Are Saying About Us
Posted on Google![]()
Cait Lesh2 days agoTrustindex verifies that the original source of the review is Google.
Professional! Great service!Posted on Google![]()
c z2 days agoTrustindex verifies that the original source of the review is Google.
Joe K. was prompt, explained everything he was doing and made sure to answer any questions I had.Posted on Google![]()
Lianne Leduc11 days agoTrustindex verifies that the original source of the review is Google.
Joseph came today to do our fall service. He was friendly, professional and courteous. He offered some good tips for the winter and proper use of the humidifier. I really enjoyed working with him. Thanks Joseph!Posted on Google![]()
Tyler and Hailey Fields13 days agoTrustindex verifies that the original source of the review is Google.
Joe was incredibly helpful both fixing a piece that was turning our thermostat off and coming back to clean out our wheel. He was kind and explained things clearly. I hope he comes back to help us in the future.Posted on Google![]()
Mary Bakke16 days agoTrustindex verifies that the original source of the review is Google.
Joe Kastens was exceptional. He gave me good information.Posted on Google![]()
Michelle Campbell17 days agoTrustindex verifies that the original source of the review is Google.
Joe Kastens is the most professional and skilled technician we have ever worked with at Southwest Heating and Cooling. He always goes above and beyond to service our A/C units and furnaces, never cuts corners and provides a thorough inspection of everything. We are always impressed with the caliber of customer service provided by the company and their team.Posted on Google![]()
Cowboy Ron17 days agoTrustindex verifies that the original source of the review is Google.
My Rheem furnace has performed well, but late this summer it would occasionally put out hit air for about15 minutes even though the thermostat was set at OFF. Your technician, Brandon, spent a good bit of time checking it out and could find nothing wrong. I'm monitoring it to see what happens next. Since the weather has turned cool, I've turned the furnace to HEAT, and it seems to be working normally.Posted on Google![]()
Quentin Schappa20 days agoTrustindex verifies that the original source of the review is Google.
Excellent service!Posted on Google![]()
bob hoster24 days agoTrustindex verifies that the original source of the review is Google.
October 2026: Just had another great experience with SWHC! Joe Kastens did our winter maintenance and diagnosed a wiring issue in our thermostat. Being a part of the maintenance plan family is well worth it. Thanks again! April 2026: Just had our Spring maintenance with Hayden Burnett. He was on time, professional, thorough and a true gentleman. Very thrilled with the service he provided. Hope to see him again next time. October 2025: We had Christian Meyers perform our semiannual routine maintenance on our air conditioner and furnace. Christian was on time, thorough and explained everything to us. A true professional and only what we've encountered since we started working with Southwest Heating and Cooling. Lisa and Cathy in the office can answer all your questions, help with installation dates, etc.... We just contracted with them to replace our water heater. While Christian was servicing our unit, he was able to provide an estimate for the replacement. Scheduling was made easy with a call to the office. Our new water heater will be installed in less than a week. June 2022 We had a new air conditioner and furnace installed. We had an immediate need. Mike, owner, met with us personally to review options from last year. Tony and Ray were terrific installers. On time, professional, left our place spotless. They went over all my questions. The office staff took care of all product registrations and rebate offers. This was a great outcome for us. Great job. July 2021 Great choice we made having Southwest Heating and Cooling service our unit. On time, spent time explaining to us what our system status is, etc.... Jake was great to work with. He left us with options on a new system, explained our options, reviewed their annual maintenance plan with us and overall treated us like family. We will definitely be recommending and using their services again.Posted on Google![]()
Deborah Oblath24 days agoTrustindex verifies that the original source of the review is Google.
I thought he did a great job. Explained what he was doing - was efficient and easy yo ask questions of him. Great experience.