News Slide





West Virginia-based HVAC/Mechanical provider services commercial, industrial, and institutional markets


HUNT VALLEY, MD (April 6, 2023) – Fidelity Building Services Group (Fidelity BSG), a national leader in technical building services and solutions, including HVAC/Mechanical Services, Energy & Sustainability Engineering, Advanced Building Automation, and Emergency Power Systems, announces today the addition of Darnold Mechanical to our company.

A trusted name in the HVAC/Mechanical industry, Darnold Mechanical provides expert services to commercial customers throughout Central and Southern West Virginia. The company utilizes state-of-the-art technologies, a dedicated team of industry experts, and highly skilled technicians to design, deploy, and deliver quality projects.

Darnold Mechanical’s comprehensive range of HVAC/Mechanical services to commercial and industrial customers include heating, air conditioning, rooftop systems, ductwork, chillers, cooling towers, energy-efficient VRF systems, and more.

“Through exceptional leadership and a commitment to technical excellence, Darnold Mechanical has solidified their name as a leading provider in the HVAC/Mechanical industry, making them an excellent addition to Fidelity BSG,” says Dave Lanphar, LEED AP, CEO/Partner of Fidelity BSG. “We are proud to continue our expansion by welcoming this incredible and dedicated team.”

Darnold Mechanical is a fourth generation, family-owned company near Charleston, West Virginia. Their passion, skills, efficiencies, and commitment to customer satisfaction have made them a sought-after HVAC/Mechanical partner to commercial, industrial, and institutional markets throughout the state and beyond.

“It has been our greatest honor to serve our customers and provide them with the highest level of professionalism in the HVAC/Mechanical industry. We are thrilled to become part of Fidelity BSG’s national network of technical building service providers,” says Scott Darnold, President of Darnold Mechanical. “This is an exciting time for our family, our Team Members, and all of Darnold Mechanical, and we look forward to the opportunities that await us through this partnership.”

About Fidelity Building Services Group

Fidelity Building Services Group (Fidelity BSG) is a leading national provider of technical building services and solutions for the commercial and industrial facilities market. Our product and service offerings include HVAC/Mechanical Services, Energy & Sustainability Engineering, Advanced Building Automation, and Emergency Power Systems. Our core markets are commercial, industrial, and institutional facilities. Fidelity BSG leaders are some of the most highly regarded individuals in the service, construction, and engineering communities. Collectively, we share a commitment to advancing the cause of building energy efficiencies, sustainable energy solutions, and service excellence.

In 1945, Fidelity BSG was founded as a full-service mechanical engineering, contracting, and service company that introduced air conditioning, refrigeration, and process cooling to a new marketplace. The advent of air conditioning went on to revolutionize the entire building industry, and Fidelity BSG has been on the leading edge ever since. Today, through strategic acquisitions and partnerships, the Fidelity BSG geographic footprint has grown beyond the Mid-Atlantic, extending throughout the South, Southeast, Midwest, and Gulf regions. We have over 2,200 Team Members, more than 66 locations serving 22 states, and over 75 years of excellence delivering Proactive, World-Class Service.

About Darnold Mechanical

Darnold Mechanical provides a full line of expert HVAC/Mechanical products and services, including heating, air conditioning, ductwork, rooftop systems, chillers, cooling towers, and energy-efficient VRF systems, to commercial and residential customers throughout Central and Southern West Virginia.