
Built in Southern Utah. Engineered for the long run.
Ace Mechanical Contractors has been the mechanical backbone behind Southern Utah's growth for nearly four decades. We're a self-performing contractor — engineers, project managers, and tradespeople under one roof.
Roots in the red rock.
Ace Mechanical was started in 1985 in a small St. George shop with two service trucks and a commitment to doing the job right. Forty years later, we're still here — and still locally owned.
Today we deliver full mechanical scope on commercial, industrial, institutional, and residential projects across Washington and Iron counties. We hire local. We train local. And we stand behind every system we install.
Our team brings together licensed engineers, certified project managers, and journeymen technicians. The depth lets us bid serious institutional work — and the local roots keep us responsive on a Tuesday afternoon service call.

To deliver mechanical systems Southern Utah can rely on for decades.
Comfort, efficiency, and uptime — engineered with the climate, the codes, and the customer in mind.
Forty years, still climbing.
- 1985Founded in St. GeorgeStarted as a two-truck residential service operation.
- 1996Commercial DivisionBegan bidding institutional and commercial mechanical scope.
- 2008Geothermal PracticeAdded ground-source design and installation capabilities.
- 2015Industrial ExpansionCrossed into industrial process cooling and large-scale RTUs.
- 20241,200+ Projects DeliveredContinuing to grow with Southern Utah's skyline.
Ready to bring real mechanical expertise to your project?
From a quick service call to a full institutional build, our team is ready. Tell us about the job and we'll respond within one business day.