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Leadership Teams

Executive Leadership Team

Nate Nelson


Scott Sawyer

Chief Financial Officer

Tim Plaster

Executive VP of Building Services

Todd Stanfield

VP of Construction Sales

Mike Smith

VP of Construction

Management Leadership Team

Jimmy Bennett

Service Director

Mike Brockdorff

Director of Quality and Commissioning

Michelle Gibbons

Director of Project Management Processes and Training

Gary Niver, P.E., LEED AP

Director of Engineering

Brian Ruffner

Director of Sales - Building Services

Randy Sparaco

Director of Operations - Building Services

Alfredo Florez

Branch Director - New Mexico

Hector Herrera

General Manager – Tucson

Kellie Foster

Human Resources/Payroll Manager

Manny Sandoval Jr

Safety/Risk Management Director

John Schoellgen

Field Ops Manager

Field Leadership Team

Eddie Aguirre

Superintendent – Building Services

Angel Bustos-Guzman

Sheetmetal Superintendent-Construction

Ralph Castine

Sheetmetal Superintendent-Construction

Brent Duquette

Plumbing Superintendent-Construction

Gage Elder

Piping Superintendent-Construction

Don Endsley

Special Projects Sr. Superintendent-Construction

David Kinsey

Special Projects Superintendent-Construction

Darren Rand

Sr. Plumbing Superintendent-Construction

Mario Ruiz

Superintendent-Building Services

Tim Spencer

Sr. Piping Superintendent-Construction

Let’s Create a Healthier, More Sustainable Future.

Comfort Systems USA Servicing Arizona Icon

(602) 437-4428 (Service)
(480) 940-8400 (Construction)

Comfort Systems USA Servicing Arizona Icon

(520) 628-8640 (Service)
(520) 629-0820 (Construction)

Comfort Systems USA Servicing New Mexico Icon

(505) 856-9250