Comfort Systems USA Acquires J & S Mechanical Contractors

Comfort Systems USA Acquires Summit Industrial Construction

January 2, 2024

Construction

Comfort Systems USA, Inc. has acquired Summit Industrial Construction, LLC, a Houston-based specialty industrial mechanical contractor, from The Stephens Group. Summit provides engineering, design-assist and turnkey construction services for modular systems serving advanced technology (including chip fabs), power, and industrial sectors; Comfort Systems said the acquisition adds complementary capabilities, workforce and scale to better serve customers.

The SEER Group Acquires S&S Mechanical to Enter Utah Market

May 13, 2025

HVAC & Mechanical

The SEER Group has acquired S&S Mechanical, a long-established HVAC and plumbing provider based in St. George, Utah, marking SEER's first expansion into Utah. The acquisition brings S&S into SEER’s network of residential and commercial home‑services brands while preserving the company's local leadership and operations.

CoolSys Acquires Mechanical Engineering & Construction Corporation (MEC2)

October 1, 2024

HVAC & Mechanical

CoolSys has acquired Mechanical Engineering & Construction Corporation (MEC2), a Maryland- and Virginia-based mechanical engineering and construction firm. The acquisition strengthens CoolSys's commercial and industrial capabilities while deepening its presence in the Mid-Atlantic region.

Comfort Systems USA Acquires Edwards, Thermal Businesses and Kodiak Labor Solutions

January 5, 2022

Construction

Comfort Systems USA (NYSE: FIX) acquired MEP Holding Co., Inc. and its subsidiaries including Edwards Electrical & Mechanical, Inc., a Richmond, Kentucky-based service and controls business (Thermal Service, LLC and TES Controls, LLC), and Kodiak Labor Solutions, LLC, a temporary staffing firm based in Indiana. The additions expand Comfort Systems USA's Midwest footprint, add specialized clean-room and controls capabilities, bolster HVAC service and chiller maintenance capacity in Kentucky, and augment skilled labor resources for project staffing.

Comfort Systems USA Acquires Atlantic Electric, LLC

April 4, 2022

Construction

Comfort Systems USA, Inc. (NYSE: FIX) has acquired Atlantic Electric, LLC, a Charleston, South Carolina–based electrical contractor with operations in South Carolina and western North Carolina. Atlantic brings approximately $50 million of annualized revenue and specialized capabilities including airport runway lighting and industrial electrical services, expanding Comfort Systems USA's presence and capabilities in the Carolinas and the Southeast.

United Building Solutions Acquires DFW Mechanical Group

January 20, 2026

HVAC & Mechanical

United Building Solutions, a PE-backed national commercial HVAC platform, has acquired DFW Mechanical Group, a full-service commercial and industrial mechanical contractor based in Wylie, Texas. The add-on expands UBS's footprint across the Southeast and South-Central United States and broadens its HVAC, plumbing, heating, and piping capabilities; financial terms were not disclosed.