Southern Utah · Family-owned since 1992

Heating & Air Conditioning Specialists

Commercial, residential, and industrial HVAC across Washington, St. George, Hurricane, and the surrounding St. George metro area. We service all makes and models.

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Family-owned since 1992 Licensed & insured All makes and models Free estimates

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Same-day service available across the St. George metro area. Free estimates on installs.

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› 24/7 emergency dispatch
› 30+ years of local experience
› Honest diagnostics

30+

Years in Southern Utah

1,000s

Systems installed

24/7

Emergency service

All

Makes & models

What we do

Full-service HVAC since 1992.

Seven service lines, one phone number. A same-day capacitor replacement, a high-efficiency furnace install, a 20-ton rooftop swapped on a restaurant, a custom geothermal loop designed from scratch: the same shop handles all of it. No subcontractors. No middlemen.

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.

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Heating

Gas furnace repair, replacement, and maintenance. We service every major brand and install 95%+ AFUE high-efficiency furnaces sized for your home.

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Heat 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.

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Geothermal

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.

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Indoor 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.

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Commercial HVAC

Rooftop units, T.I. spaces, sheet metal fabrication, gas lines, grease ducts, and preventive maintenance contracts for businesses across Southern Utah.

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New 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.

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About M&M

Family-owned. Locally rooted. Quietly excellent.

Alan and the M&M crew opened the doors in 1992 out of a much smaller shop on the edge of Washington. By 1996, the work had outgrown the building, so the family put up the current shop on Rio Virgin Drive, and we've been operating out of it ever since. Same family. Same address. Same phone number that's been answered for over three decades.

We've worked on essentially every era of HVAC equipment that's ever been installed in Southern Utah, from 1970s gravity furnaces to R-22 split systems we replaced ten years ago to the variable-speed inverter units going in this week. That long tail of experience is the actual product. When a tech walks into your mechanical room, they've probably seen the exact configuration before.

We don't run salespeople on commission. We don't push memberships you don't need. When a $30 capacitor will fix your system, that's what we install, and we tell you so. Plenty of HVAC companies have made a different choice. We'll keep making this one.

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Why M&M

Four things that set us apart.

You can probably find an HVAC contractor on every block in St. George. Here's why thousands of Southern Utah homeowners and businesses keep dialing the same number they did a decade ago.

30+ Years of Local Experience

Same family, same shop, same phone number since 1992. We've installed and serviced equipment in every Washington County zip code.

Honest Diagnostics

If a $30 part fixes it, we install the $30 part. No commission salespeople, no upsell pressure, no manufactured emergencies.

All Makes & Models

Carrier, Trane, Lennox, Goodman, Rheem, York, Mitsubishi, Daikin. We work on every brand and every era of HVAC.

24/7 Emergency Dispatch

When your AC quits at 9 PM in July, you don't want voicemail. A real tech is on rotation every night and weekend, year-round.

Where we work

Eight cities. One shop. Same-day reach.

We dispatch from our Washington shop and cover the entire St. George metro area. Most homes see a truck within 30 minutes during business hours.

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Washington

From our Washington shop: 0 minutes. Our shop is in Washington

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St. George

From our Washington shop: 8–15 minutes from our Washington shop

View St. George page

Hurricane

From our Washington shop: 20–25 minutes from our Washington shop

View Hurricane page

Ivins

From our Washington shop: 20 minutes from our Washington shop

View Ivins page

Santa Clara

From our Washington shop: 15 minutes from our Washington shop

View Santa Clara page

La Verkin

From our Washington shop: 25 minutes from our Washington shop

View La Verkin page

Toquerville

From our Washington shop: 25 minutes from our Washington shop

View Toquerville page

Springdale

From our Washington shop: 45 minutes from our Washington shop

View Springdale page

Don't see your area? Give us a call at (435) 674-1275. We cover Cedar City and Kanab on a case-by-case basis.

Resources

Helpful HVAC info from our team.

Plain-English answers from technicians who fix this stuff for a living. No SEO fluff, no sales pitches.

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AC Repair

7 Signs Your Air Conditioner Needs Repair

Weak airflow, warm air from vents, ice on the lines. Here's how to tell whether you need a tune-up, a part, or a full replacement before the next heat wave.

Heating

Heat Pump vs. Furnace in Southern Utah

A modern heat pump is the most efficient way to heat a Washington County home, but only if you size it right and account for our handful of cold mornings.

Maintenance

How to Prevent a Frozen AC Coil This Summer

If your AC is running but barely cooling, the indoor coil may be frozen solid. Most causes are preventable with a $20 filter and a little airflow attention.

Common questions before the first call

How fast can you get to my home?

From our Washington shop, most homes inside the St. George metro area see a truck within 30 minutes during business hours. Same-day service is the rule, not the exception, on AC repair in summer and furnace repair in winter. If you're farther out (Springdale, Toquerville, La Verkin), we'll give you an honest ETA when you call. Emergencies after hours are answered by a real technician on rotation, not a call center.

Do you service all brands?

Yes. We service Carrier, Trane, Lennox, Goodman, Rheem, York, American Standard, Bryant, Mitsubishi, Daikin, LG, Fujitsu, and the older Day & Night, Coleman, and Heil units still running across Southern Utah. We've serviced equipment from every era of HVAC in this market since 1992. If we can't get a part, we'll tell you up front and help you decide whether to repair or replace.

What does an AC repair typically cost?

Most residential AC repairs in Southern Utah land between $150 and $700, depending on the part. A failed capacitor or contactor is typically under $250 fully installed; a blower motor or condenser fan motor runs $400–$700; refrigerant leak repairs vary widely. Compressor or coil replacements on older systems often tip the math toward replacement. We'll show you the numbers honestly before any work starts.

Are you licensed and insured in Utah?

Yes. M&M Mechanical Inc. is a Utah-licensed HVAC contractor, fully insured, and bonded. Our installs pass inspection the first time because we follow Manual J load calculations, Manual D duct design, and current code on every job. We're happy to provide our license number and certificate of insurance to homeowners, builders, or property managers on request.

Do you offer financing on new systems?

Yes. We work with several financing partners that offer competitive terms on full system replacements, including plans with deferred interest and longer repayment options. Many homeowners qualify for instant approval, and some new high-efficiency systems also qualify for federal tax credits and Rocky Mountain Power rebates. Ask your tech for the current options when we write your quote.

What areas of Southern Utah do you serve?

Our home base is Washington, and we serve the entire St. George metropolitan area: Washington, St. George, Hurricane, Ivins, Santa Clara, La Verkin, Toquerville, and Springdale. We also handle commercial work farther out (Cedar City and Kanab) on a case-by-case basis. If you're not sure whether we cover your address, just give us a call.

Ready to schedule? Talk to a tech today.

Call (435) 674-1275 for same-day service or send us a message. We respond within one business day.

(435) 674-1275 Schedule Online