The Riverside Company Adds Done Service Group to Radiant Plumbing Platform

The Riverside Company Invests in Radiant Plumbing & Air Conditioning

May 4, 2021

HVAC & Mechanical

The Riverside Company has invested in Radiant Plumbing and Air Conditioning, a residential plumbing, sewer and HVAC services provider serving the Austin, Texas area. Riverside said it will support Radiant’s organic growth in Austin and pursue inorganic expansion across Texas (and beyond), while maintaining the company’s technician-friendly culture under founders Brad and Sarah Casebier.

The Riverside Company Acquires Mainstream Electric, Heating, Cooling and Plumbing as Add-on to Radiant Platform

January 11, 2022

HVAC & Mechanical

The Riverside Company has invested in Mainstream Electric, Heating, Cooling and Plumbing (Mainstream) as an add-on to its Radiant Plumbing and Air Conditioning platform. Mainstream, which serves the Greater Spokane, Washington and Coeur d'Alene, Idaho markets, provides residential HVAC, plumbing, electrical, excavation and drain services and will help Radiant expand service lines and cross-selling opportunities.

Rockbridge Growth Equity Adds Radon Be Gone to RB Home Services Platform

April 29, 2021

Environmental Services

Detroit-based private equity firm Rockbridge Growth Equity has acquired Columbus-based Radon Be Gone Inc. as the second add-on to its RB Home Services clean air and water treatment platform. The founders will remain as principals and Rockbridge intends to use the platform's marketing, technology and operational capabilities to expand Radon Be Gone's customer base across the U.S.

The Riverside Company Invests in 1-Tom Plumber as Add-on to EverSmith Brands

December 9, 2025

Professional Services

The Riverside Company has invested in 1-Tom Plumber, a fast-growing franchisor of emergency plumbing and drain cleaning services, as the sixth add-on to its EverSmith Brands platform. 1-Tom Plumber operates through 37 franchisees across 57 territories in 22 states; Riverside and EverSmith plan to accelerate franchise development, deepen commercial penetration and drive cross-sell opportunities across the platform.

Gladstone Investment Corporation Acquires Dema Plumbing

July 6, 2022

HVAC & Mechanical

Gladstone Investment Corporation acquired Dema Plumbing and will merge it with Mai Mechanical, an existing Gladstone portfolio company, to form a larger plumbing and mechanical services platform in Colorado's Front Range. The combined business will serve single-family and multi-family residential homebuilders across the region and support Gladstone's expansion in the lower middle market services sector.

Northwinds Services Group Acquires Lifeline Plumbing, Heating & Cooling

August 1, 2025

HVAC & Mechanical

Northwinds Services Group has acquired Lifeline Plumbing, Heating & Cooling, a Chicagoland residential plumbing and HVAC services provider. The acquisition is an add-on to Northwinds' HVAC and plumbing platform and will support Lifeline's growth in the Chicago market while retaining the existing leadership team; the seller was former owner Tyler Diciolla.