Serving St. George, Utah
HVAC Services in St. George, UT
St. George is the largest city in Southern Utah and the fastest-growing market we serve. From historic downtown bungalows to new builds in Little Valley and Desert Color, we work on every era of construction in the city, and we know which decade of ductwork tends to leak where.
Talk to a tech today
Same-day service available across the St. George metro area. Free estimates on installs.
Call (435) 674-1275 Request a Quote Online- › 24/7 emergency dispatch
- › 30+ years of local experience
- › Honest diagnostics
The local picture
What HVAC looks like in St. George
St. George shares Washington's brutal summers but adds a slightly higher dew point in the south end of town. That's why we're aggressive about right-sized AC and proper humidity management. Oversized systems short-cycle and never pull the moisture out.
We dispatch from our Washington, UT shop and reach St. George in 8–15 minutes from our washington shop. That proximity is why we can usually get to St. George the same day you call.
Neighborhoods we serve in St. George
- Bloomington
- Bloomington Hills
- Little Valley
- Desert Color
- Tonaquint
- Dixie Downs
- Sun River
- Stone Cliff
- Entrada
- The Ledges
- Downtown / Historic District
Don't see your neighborhood? Call us at (435) 674-1275. If you're in Washington County, we almost certainly cover you.
Drive time
8–15 minutes from our Washington shop
ZIP codes served
84770, 84771, 84790, 84791
St. George population
~100,000
Years in Southern Utah
30+
Service catalog
Services we offer in St. George
Every service line we run is available throughout St. George and surrounding Washington County. Click any service for details, or call the shop and we'll walk you through your options.
Air Conditioning
Fast, honest air conditioning service across Southern Utah. Same-day repair on most systems, free estimates on replacements, and tune-ups that pay for themselves in a single summer.
Learn moreHeating
Gas furnace repair, replacement, and maintenance. We service every major brand and install 95%+ AFUE high-efficiency furnaces sized for your home.
Learn moreHeat Pumps
Heat pumps are the most efficient way to heat and cool a Southern Utah home. We install, service, and repair air-source and ductless mini-split heat pumps from every major manufacturer.
Learn moreGeothermal
Geothermal is the most efficient HVAC technology on the market, and one of the few investments that genuinely pays for itself. We design, install, and service ground-source heat pump systems across Southern Utah.
Learn moreIndoor Air Quality
Southern Utah air is dry, dusty, and full of fine particulates. We install whole-home air cleaners, humidifiers, ERV ventilators, and zoning systems that make a measurable difference.
Learn moreCommercial HVAC
Rooftop units, T.I. spaces, sheet metal fabrication, gas lines, grease ducts, and preventive maintenance contracts for businesses across Southern Utah.
Learn moreNew Construction
Builders, GCs, and homeowners trust M&M for full-design HVAC on new homes, additions, and major remodels. Manual J load calcs, Manual D duct design, and clean rough-ins on schedule.
Learn moreLocal focus
What we specialize in here
Every city has its own HVAC patterns: climate, building stock, and what fails most often. Here's where we put extra emphasis when working in St. George.
- Residential AC and furnace service
- Indoor air quality upgrades
- Commercial HVAC for retail and restaurants
- Heat pump and mini-split installation
Why M&M
Why St. George homeowners and builders pick us
30+ years local
Three decades of service in St. George means we've seen every neighborhood from Bloomington to Desert Color through multiple equipment cycles.
Family-owned
We're independent, family-owned, and not a national franchise. The tech at your door is on our payroll, not a subcontractor.
All makes & models
Carrier, Trane, Lennox, Rheem, Goodman, Bryant, Mitsubishi, Bosch. We stock parts and service them all.
On the map
Service area map
Our shop sits at 1430 Rio Virgin Drive, Washington, UT 84780, 8–15 minutes from our washington shop from St. George.
Need HVAC service in St. George?
We dispatch from our Washington, UT shop and reach St. George fast. Call us or schedule online.