Service Professional Group Members

SPGroup is the premier association of independently owned and internationally recognized commercial HVAC service providers. We are committed to the principals of delivering the highest standards of service to our customers while providing consistent and continuous training for our employees.

Meet Our Members

Members collaborate to explore, find and share innovative ways to enhance the business environment while ultimately increasing the value we provide to our customers. Through peer group training and forums, the organization leverages our collective experience to create a scalable platform of best practices and services.

Founded in 1992

The Padgett Group

Simply Put, We Make Buildings More Efficient

Located in Canton, Georgia, Padgett Group is a privately owned and operated mechanical contractor servicing Georgia for more than thirty years. At Padgett, we apply a consultative approach to developing and implementing the long-term solutions that achieve the technical, operational and financial objectives of our customers’ buildings.

Our programmed approach has proven to lower the total long-term costs of our clients’ facilities. Our comprehensive service solutions include: Building Assessment Services, Preventive Maintenance, Building Automation, Energy Services and Design-Build and Retrofit Services.

Air  Force One

Optimal Building Performance

Air Force One provides innovative, tailored solutions that get and keep your building performing at optimal levels. We specialize in building automation and temperature control, with capabilities ranging from heating and air conditioning to engineering, refrigeration piping and project services.

Our dedicated specialists work with your team as partners, identifying current behaviors and defining strategic goals to achieve essential performance objectives and create cost savings. We offer a host of services to different industries. Our solutions vary according to the needs of our customers. From holistic, design-build projects to mechanical systems installations, we operate as partners to help you reach your goals.

Founded in 1951

Perfection Group

Energy Efficient Building Solutions That Maximize Technical And Financial Efficiency

Founded in 1951 in Cincinnati, Ohio, Perfection Group is a family owned and operated business. Today, nearly 65 years later, Perfection is a facility solutions provider servicing multiple cities in 6 states.

Perfection Group has become an industry leader that designs, installs and services mechanical and environmental systems focusing on energy-efficient facility operations for commercial, industrial and institutional customers. The key to the success of our company is integrity, expertise and legendary service to both our associates and customers.


Founded in 1935

Hughs Environmental Engineering

Innovation And Excellence Since 1935

Hughes Environmental Engineering is the LEADER when it comes to the design, installation and service of commercial/industrial HVAC and Refrigeration systems. Our highly-trained and experienced HVACR technicians are the regional experts in resolving challenging problems and finishing urgent projects.

Celebrating more than 80 years of continuous service, Hughes is a growing, family-owned and operated business with over 75 permanent employees who service the metropolitan tri-state area. Current Chairman Frank Hughes’s father, Richard L. Hughes, and his grandfather, Frank W. Hughes founded the company in 1935. Today, the executive team, led by William Glynn, keeps the company growing strong with help from a quality administrative and sales support staff, and 50 top-notch technicians.

Founded in 1948

Harris Companies

Understanding Needs, Exceeding Expectations

Harris Companies designs, builds, controls, and maintains plumbing, piping, process and HVAC systems for commercial, institutional and industrial customers offering complete Design/Build and Design/Assist services for projects that vary in size, scope, and complexity. From stadiums and concert halls, to historic landmark buildings, to hospitals and industrial facilities, Harris Companies works closely with entire construction project teams and draws on the expertise of a skilled, diverse and dedicated workforce.

We focus on implementing differentiators that are important to our customers, and leveraging expertise and resources across the entire organization. With this approach, Harris has been able to deliver quality projects that meet and exceed expectations while building strong relationships along the way.

Founded in 1946

McCarl's Services, Inc

The Tri-States' Most Comprehensive, Professional Heating And Air Conditioning Service

McCarl's Services Inc. is proud of its heritage and the precepts that Foster McCarl Jr. followed to build the firm from a small residential company to one of the largest mechanical service firms in the United States. With over 40 professionally trained and qualified technicians, we are able to effectively address the HVAC needs of the commercial, industrial and manufacturing markets. And our state-of-the-art capabilities allow us to offer quality maintenance programs at competitive prices.

We are always looking for better ways to serve our customers and improve the operations of our organization. By exercising our high standards of honesty, integrity and effectiveness, we pledge to meet your needs and ensure complete customer satisfaction.

Founded in 1992

The Tustin Group

Bringing Reliability Into Your Building System Processes

Tustin Mechanical Services was formed in 1992 with a vision of delivering high quality mechanical services in the areas of heating, ventilating, air conditioning, and refrigeration (HVACR) to building owners and managers. Our original vision has become a reality with a large number of well-recognized commercial, institutional, and industrial customers throughout the Tri-State Region, encompassing the Delaware Valley, the Lehigh Valley, and Southern New Jersey.

The Tustin Group is equipped today to handle all of our customer’s building system needs, from design and installations to maintenance and repairs, and is the most trusted building systems expert in Pennsylvania, Delaware, New Jersey, Maryland and Washington D.C.

Founded in 1985

Cook's Mechanical Services

Professional HVAC Solutions

Cook’s Mechanical Services is dedicated to serving our clients with exceptional performance and response. Our staff of qualified people are trained to resolve problems, and to make your equipment run more efficiently. Our Vision is to be the leading provider of quality HVAC services through extraordinary teamwork and attitude.

We are a full service HVAC solutions provider, serving Middle Tennessee, East Tennessee, Southwestern Virginia, and Western North Carolina. Check out our locations for the office nearest you. There are many mobile service providers, so what makes CMS special? Ask our customers, and you will find that we have dedicated ourselves to listening to our customers, and providing the services they need.

Founded in 1921

The VETS Group

Building Healthy and Comfortable Environments

The VETS Group is a progressive group of mechanical, sheet metal and service divisions. With an outstanding team of professionals and hundreds of years of combined experience, each division passes the VETS test of HONOUR.

Be it sheet metal, mechanical or air services, VETS has a proven track record in the industry and the community. We have been around long enough to understand the link between quality craftsmanship and superior equipment performance. In fact, it’s not uncommon for us to see original VETS customers with their antique Vets Sheet Metal Supreme furnace doors. This serves as a great reminder that our products are built to last and that our exceptional servicing only adds to this longevity.


Founded in 1968


Building Partnerships

When you choose Naylor as your single-source commercial mechanical, electrical, plumbing, and compressed air partner, you will be working with one of Ontario’s largest and most reputable providers of dependable maintenance, service and installation solutions. Established in 1968, Naylor now employs a highly qualified team of consultants and managers, and over 150 qualified technicians servicing over 2000 customers including educational institutions, commercial buildings, government facilities, industrial plants, and high-rise residential buildings.

Naylor’s supportive and caring work environment empowers its professional team with the resources to become reliable, long-term partners with customers, delivering timely, expertly tested solutions and advice, quality workmanship and above all, ethical business standards. Our service-based delivery model is highly responsive, formally documented and exceptionally communicated ensuring customers operate more efficiently and cost effectively in their own markets.

EMC Mechanical Services

Providing Comprehensive HVAC Services

We are an open shop specializing in plumbing, piping, HVAC, and refrigeration solutions. We also perform design build, fabrication, installation, mechanical retrofit and service and maintenance. Our roots go deep all the way back to 1898 when Gregory & Graham provided heating and cooling solutions with coal. Since then, EMC has evolved over the course of the century from companies such as Catlett-Johnson and Eveready Heating & Plumbing.

Despite the mergers and changes in the industry, EMC remains a hometown company with hometown values. Our hands-on approach and expertise allow us to maximize value without sacrificing excellent in quality or service. From the small, rural church that needs servicing only once a year to the large, urban hospital requiring our expertise with every step of the design and building process, EMC is committed to meeting budgets and deadlines and exceeding expectations.

Founded in 1963


Plan It. Building It. Service It.

Founded in 1963 as a small general and mechanical contractor in Ponce, AIREKO has evolved into the top integrated construction services company in Puerto Rico and the Caribbean Basin. We maintain our traditional multidisciplinary approach in construction services with in-house civil, electrical and mechanical professionals, hands-on pre-construction and construction management multidisciplinary experts, allowing us to leverage our Total Construction Solutions capabilities and tailor our services to our clients’ needs.

Our General Contracting, Construction Management and Specialized Building Maintenance services include concept planning, financial feasibility, site selection analysis, design and permitting management, estimating and procurement, building construction, facility fit out, commissioning and start up. Many clients use our post construction building services as well.

Founded in 2003

Tradesmen Of New England, LLC

HVAC Mechanical Services & Controls Contractor

Founded as a Small business Enterprise (SBE) in 2003, Tradesmen of New England is an HVAC Mechanical Services & Controls Contractor in Connecticut and Western Massachusetts. We have rapidly grown to over 30 employees. One constant throughout our rapid growth has been a dedication to customer service.

Our mechanical capabilities allow us to service and maintain all types of HVAC systems and most types of equipment. Our control capabilities are extensive. We understand and are able to support many types of pneumatic and conventional control systems. Our vast Building Automation System experience allows us to service and install several different manufacturers’ systems.

Founded in 2005

State Mechanical Services

State Mechanical Services was founded in 2005 with a vision to provide outstanding service to our clients in order to build long-term relationships.

Initially seen as an opportunity to create a different kind of HVAC firm, our vision has become a genuine commitment to stand out among our peers.

By following our vision, State Mechanical Services has evolved into a first-rate full-service commercial HVAC Company. Our staff of highly qualified, motivated professionals offers our customers a wide variety of services, including:

  • Conceptual Budget and Cost Estimates
  • Value Engineering Expertise on Mechanical Systems
  • Installation of Commercial and Industrial Piping, Sheet Metal and Control Systems
  • HVAC Maintenance and Repair

Founded in 1952

First Service Air Conditioning Contractors

First Service was established in 1952

L.J. Jeter, the founder, opened the first office in Big Spring, Texas. Mr. Jeter operated the company as Jeter Sheetmetal, Inc. until 1984 when David Grosse purchased the company. Soon after the purchase, the name was changed to First Service Air Conditioning Contractors, Inc. In 1986, the company opened an additional office in Midland, Texas that serves as the main office for the corporation.

The name First Service was selected to show our commitment to service. We have continued to grow each year by maintaining this commitment. First Service is recognized as an industrial leader in West Texas. At our customer’s request, we have provided service and installations throughout Texas, Alaska, Oklahoma, Arizona, New Mexico and Kansas.