Southland Industries Acquires The Brandt Companies

Heartland Home Services Acquires Custom Mechanical

April 18, 2022

HVAC & Mechanical

Heartland Home Services has acquired Custom Mechanical, a family-owned residential HVAC and plumbing services provider in Delaware and Maryland. The deal marks Heartland's first expansion onto the East Coast and will keep Custom's management team in place as the brand joins Heartland's portfolio.

Southland Industries Consolidates Portland Subsidiaries TCM Corp. and Envise Northwest

January 3, 2022

HVAC & Mechanical

Southland Industries completed a brand consolidation by merging its Portland-based subsidiaries TCM Corp. and Envise Northwest into the Southland Industries brand as part of a plan to unify regional brands by January 2023. The consolidation aims to provide fully integrated building lifecycle solutions and strengthen collaboration and capabilities across Southland’s regional operations, with Dan Heichelbech leading the Northwest Division.

ACCO Engineered Systems Acquires Smith Electric Service (Smith MEP)

June 27, 2019

HVAC & Mechanical

ACCO Engineered Systems has acquired Smith Electric Service (also known as Smith Mechanical, Electrical & Plumbing), a specialty contractor based in Santa Maria, California. Smith MEP will continue to operate as a subsidiary, expanding ACCO’s presence and service capabilities on California’s Central Coast.

Midland Industries Acquires Century Brass Products

November 10, 2021

Building Products

Midland Industries, a portfolio company of Wynnchurch Capital, has acquired Century Brass Products, a Long Island-based distributor of machined brass fittings, valves and related plumbing supplies. The deal expands Midland's product offering and geographic footprint in the plumbing wholesale channel and integrates Century Brass into Midland's manufacturing and distribution platform.

Salas O'Brien Acquires M/E Engineering

October 28, 2025

Engineering Services

Salas O'Brien has merged with M/E Engineering to expand its mechanical, electrical, plumbing (MEP), fire protection and sustainable design capabilities across upstate New York. The deal brings M/E Engineering’s team and local offices in Rochester, Buffalo, Schenectady and Syracuse into Salas O'Brien while preserving the M/E leadership and local operations.

The Sterling Group Acquires L&S Mechanical

September 2, 2021

HVAC & Mechanical

The Sterling Group, a middle-market private equity firm, has completed the acquisition of L&S Mechanical, a tri‑trade provider of plumbing, HVAC and electrical installation services headquartered in Richardson, Texas. Sterling said it will partner with L&S management to expand the company’s tri‑trade turnkey model across Texas and into other states and accelerate growth.