H.C. Nye Company, Inc. is a Manufacturer’s Representative of Engineered, Applied, and Industrial HVAC Systems. They specialize in the assisting consulting engineers, construction managers, mechanical contractors and building owners in the application, selection, and sale of HVAC mechanical equipment.

Hajoca has a robust history of helping to shape advances in plumbing. Hajoca provides Plumbing Wholesaler, Industrial Supplies, Swimming pool supplies, pipes, valves, fittings, Kitchen and Bath, and HVAC Materials and Supplies.

Halton Group is a family-owned, global technology pioneer in indoor air solutions for demanding spaces. They enable safe, comfortable, and productive indoor environments that are energy-efficient and comply with sustainable principles.

Harder Mechanical is a large nationally recognized contractor with an outstanding reputation for working safely, meeting tough schedules, delivering a quality project and coming in on budget. They provide HVAC, Plumbing, Process Piping, Steel Erection, Concrete Installation, Complex Equipment Installation, Design Assist/Build Service and much more.

Harlen Johnson Heating & Air Conditioning is an HVAC company that provides reliable heating and air conditioning services for residential and commercial customers. They specialize in providing the most effective solution for the home or company.

Harmon Heating and Cooling Inc is an HVAC Company that provides remarkable HVAC services to both residential and commercial customers in Omaha and the surrounding counties.

Harris Air Heating and Air Conditioning is an HVAC company in Benton, AR. They specialize in repairing and installing all makes and models of heating and air conditioning units at affordable rates.

Hartman Brothers Heating & Air Conditioning Inc is a full service HVAC company based in New Haven, IN. They offer a wide variety of products and services including installation; engineering; sheet metal fabrication; custom designed heating, cooling, and ventilation systems.

Hastings HVAC, Inc. is a pioneer in commercial and industrial heating, ventilating and air-conditioning systems. They offer a company-staffed field solution to ensure Hastings' items are properly built, properly set up and correctly serviced.

Hatcher Heating & Air Inc is a locally owned and operated HVAC company in Pensacola, FL. They pride themselves on providing the best possible service to all their customers.

HaVACo Technologies Inc. is focused on revolutionizing the HVAC air distribution industry with product design, functionality and performance offering time saving technology and simpler maintenance.

Hawkins HVAC Distributors is a new company with a strong history in North Carolina set on delivering Charlotte and the surrounding areas the service it deserves. They provide parts of all residential and commercial HVAC systems.

Hayes Mechanical is a one stop, full service mechanical contractor specializing in both Commercial, Industrial, and Power-Generation related work.

Haynes Mechanical Systems has provided technical facilities services for the commercial real estate market since 1968. They focus on working together with the customers to provide solutions to their heating, ventilation, and air conditioning (HVAC) needs.

Heat Exchangers WA was established in 2003 with a vision to become the very best plate heat exchanger service center in Australia, having accomplished this we are now expanding our supply and service range to include a wider variety of heat transfer equipment.

Heat-Timer Corporation deals with weather-actuated hot water, reset and steam cycling controls, radiant controls, boiler sequencing controls, DHW tempering valves. Their products combine the needs of the industry with up-to-the-minute technology.

Heatcraft Refrigeration Products is a globally renowned company in commercial refrigeration, providing climate-control solutions to customers in more than 70 countries. They manufacture and service unit coolers, air-cooled condensers, condensing units, low-temperature, hot gas and electric defrost equipment, refrigeration systems, heat transfer systems, custom refrigeration rack systems, and refrigeration system controls.

As buildings and their systems are used and age, they require regular maintenance, repair, and replacement. Whether the plumbing systems need to be repaired or completely replaced HRC can get the job done. They provide leak detection, new plumbing fixtures, pumping, sink repair & replacement, sump pump repair / new installation, water heaters & tank-less water heaters and much more.

Heieck Supply is a plumbing wholesaler in the Sacramento, CA area. Whether it be a bathroom remodel, building a high rise, or swapping out water heaters Heieck Supply is the one-stop-shop for all the plumbing needs.

Helmer Scientific is an established, entrepreneurial, growth company headquartered in Noblesville, Indiana. Helmer Scientific design, integrate, manufacture, market, and distribute specialized medical and laboratory equipment to clinical and life science customers in over 125 countries.

Hiller provides residential and commercial service, installation, and repair throughout Tennessee, Southern Kentucky, and Northern Alabama. Hiller is Tennessee’s largest residential plumbing, heating, air conditioning, and electrical services provider.

Hilson Moran is an international environmental engineering consultancy for the built environment. They provide building services, fire engineering, smart buildings, facilities management, building automation systems and much more.

Hix Air Conditioning Service, Inc. is proud to provide services that vary from heating, cooling, indoor quality of air, residential and light commercial installation, refrigeration solutions on current HVAC clients, preventative maintenance agreements, and getting to attain the greatest client satisfaction and retention.

Hoffman Controls is a manufacturer of Electronic Special Purpose products for the HVAC&R (Heating, Ventilation, Air Conditioning & Refrigeration) industry. They deal with EC Motor Controls, Induction Motor Controls, Condenser Fan Controls, Refrigeration Controls, SCR Heating Controls, Variable Air Volume (VAV) Products, Sequencer Controls, Thermostats and Transducers, Motor Protection, Ventilation/Exhaust Controls.

As Georgia’s #1 American Standard dealer, Holtkamp provides award-winning air conditioning repairs, AC replacement, and AC maintenance to Gwinnett County and surrounding areas from their Suwanee headquarters.

HTS unites top brands -- Honeywell Combustion Safety, Honeywell Combustion Service, Eclipse, Exothermics, Hauck, Kromschröder, Maxon and Honeywell Combustion Controls -- delivering the best in thermal solutions.

Howard Air focuses on providing the latest technology in superior comfort to meet all of the air conditioning and heating needs. Whether it is residential or light commercial sales, service, installation, indoor air quality or new construction, they guarantee that their specialized team will provide the best quality work.

Hughes Environmental helps their customers to create safe and clean work environments by providing quality commercial duct cleaning, rafter and ceiling cleaning, and combustible dust remediation services.

Here at Hunter, they’ve set the standard in quality and craftsmanship for more than 125 years. Because they design and engineer the fans right here in Memphis, they’re able to stay at the forefront of the industry, incorporating the very latest trends and technologies into the fans, then rigorously testing them beyond established standards to ensure a lifetime of whisper-quiet performance.

Hunts Services is a certified and licensed plumbing, heating, furnace, and electrical repair company that also specializes in air conditioning and duct cleaning. Over the years Hunt’s Services a Heating, air conditioning, electrical and plumbing service company has established a reputation for quality work and dependability.