HVAC Repair, Installation & Maintenance in the Denver Metro & Front Range
Residential and commercial heating and cooling service for furnaces, air conditioners, boilers, heat pumps, water heaters and more.
Serving Denver Metro and Front Range communities — Broomfield, Westminster, Brighton, Erie, Parker, Golden, Aurora, Littleton, Lakewood, and beyond — since 1995.
Established
Since 1995
Trusted HVAC service across the Denver Metro and Front Range communities.
Local HVAC Service Since 1995
SMSI Inc. is a Family & Veteran Owned and Operated HVAC company serving homeowners and businesses throughout the Denver Metro and surrounding Front Range communities. Since 1995, we've focused on honest diagnostics, practical repairs, and giving customers real options without pushing unnecessary replacements.
We repair, maintain, and install furnaces, air conditioners, boilers, heat pumps, water heaters, and other residential and commercial HVAC equipment. Our goal is simple: find the problem, explain your options, and help you choose what makes sense for your home or business.
- Residential & commercial HVAC service
- Service and repair for all major HVAC brands
- Repair-first recommendations without high-pressure sales
- Heating, cooling, boilers, heat pumps & more
Why Choose SMSI
Why Customers Choose SMSI
Repair First, Replace When It Makes Sense
We diagnose the problem first and recommend repair when repair makes sense. Replacement should be an option, not the automatic answer.
Straightforward Options, No Pressure
We explain what we found, what can be repaired, and what your options are so you can make the decision that makes sense for your home or business.
What Our Customers Say
Real feedback from homeowners and businesses we've served.
"Was having issues with my AC unit not working correctly. Ryan came out quickly, diagnosed the problem, and had it fixed the same day. Incredibly professional and fair pricing. Will definitely use SMSI again!"
Jenna Montoya
7/14/2026
"Great HVAC responsiveness, diagnostic services, and knowledgeable technicians. They explained everything clearly and didn't try to upsell me on things I didn't need. Highly recommend for any HVAC work."
Lynn Peterson
6/26/2026
"Ryan and his team do great work — our house has been cooler than ever this summer. They were on time, clean, and thorough. Family-owned business that truly cares about their customers."
Todd Ness
6/18/2026
Need HVAC Service?
Get in Touch
When You Need Help With Your HVAC System
Send us a message and tell us what's going on. We'll get back to you as soon as possible. For urgent HVAC needs, call 303-935-2613.
Phone
303-935-2613