Hart-Hammer, Inc. is a US-based provider of sales and engineering support in Iowa, Nebraska, the Quad Cities, and Western Illinois. They represent 27 HVAC manufacturers including AAON, Nailor, Ruskin, CamFil, Strobic, and many others. The company focuses on heating and air conditioning services for commercial/institutional and temperature control/measurement for hospitals and laboratories.

As an American Standard Customer Care dealer, Hartley’s Climate Control takes pride in 'selling the best and servicing the rest'. It helps customers in their HVAC system purchases as they know purchasing a home comfort system can often be a daunting task.

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.

Hatch Company was established in 1985 with over 30 years’ experience as a manufacturer’s rep firm serving Western Canada, and the northern Territories. They provide solutions for the HVAC/R marketplace, focused on institutional, commercial, multi-family residential, and industrial construction projects. They cater their services to both the new construction and the retrofit markets.

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.

HAUSER, with headquarters in Linz-Urfahr, is a successful full-service provider of refrigeration cabinets and refrigeration technology throughout Europe. They offer their international customers everything from a single source: innovative, energy-saving cooling solutions, as well as complete project management and service.

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.

HD Supply, a wholly owned subsidiary of The Home Depot, is a leading wholesale distribution company serving customers and their communities across the Multifamily, Institutional, Hospitality, Trades, Government Housing, Healthcare, Building Services, and Education industries through an expansive network of over 100 distribution centers across the U.S. & Canada.

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 Orkney has an experienced team who can assess, install and commission any size of heat pump or air conditioning equipment. We pride ourselves on a professional service where the customer satisfaction comes first. They offer a free quote to supply, or supply and install, any sized systems throughout the whole of Orkney- including outlying islands, Shetland and northern Scotland.

Heatex is a cleantech company that optimizes and develops energy-saving thermodynamic products and solutions that contribute to a sustainable future.

Heatforce has been supplying quality fireplaces, bathrooms, boilers and renewable energy solutions for over 35 years. They also provide heating installation, servicing & maintenance, fireplace installation & servicing, renewable energy installation, and bathroom installation & maintenance.

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.

For over 125 years, Redlands and Henry Bush Plumbing, Heating, and Air have been proudly serving the Inland Empire community with top-notch HVAC service and expertise. When it comes to any plumbing and HVAC needs, they're the leaders who customers can rely on for honest service. Their experienced team is dedicated to exceptional service.

As a non-profit organization, HETAS pride itself on investing surplus funds into business areas that directly contribute to safely reducing particulate and carbon emissions for the benefit of the people and the environment.

HEVAC is a company specializing in supply of environmental control systems for the commercial Air-Conditioning industry. They are probably best known for our legendary ultra reliable HTC4 temperature controller that has been in continuous production for over 30 years.

Hevac Limited is one of Ireland's leading domestic, commercial & industrial plumbing & heating specialists. They operate in offices and warehouse facilities in Dublin and Cork comprising over 10,000 square meters of space. They supply every plumbing & heating component imaginable to the residential, commercial, and industrial sectors and can offer in-house specialists including design engineers, CAD technicians, and system specialists.

HH Technologies® is widely recognized as a supplier of high-performance, automated door systems, portable evaporative cooling systems and contract manufacturing services to other OEM companies. Since 1978, their on-site engineering and manufacturing operations in Bremen, Alabama has produced the most respected brands within the markets that they serve.

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.

Hisense VRF product is manufactured by Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd., which is a joint-venture company between China and Japan. And its business involves commercial air conditioning technology research and development, product manufacturing, marketing and service.

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.

HK Instruments is a Finnish company specialized in designing and manufacturing highly accurate and easy-to-use measuring devices for HVAC applications. devices are mainly used in ventilation systems and building automation.

HLA Services Ltd are specialists in Heating, Ventilation, Air Conditioning, Plumbing, Electrical and Water Hygiene Services. All key personnel at HLA Services Ltd have many years’ experience in these disciplines and employ only fully qualified staff that are capable of providing a full ‘turn key’ service.

HM Tech Air Conditioning & Heating is a company that provides viable solutions to homeowners and businesses alike. Based in Mesquite, TX, they offer a variety of HVAC services, Their HVAC company is ready to provide users with professional installation, repair, and maintenance services for their system! HM.

Home Connectivity Alliance (HCA) is an appliance, HVAC, and TV manufacturers alliance that is focused on IoT and connectivity in the new digital landscape.

Home Heating & Plumbing specializes in HVAC (Heating, Ventilation and Air Conditioning) and Plumbing solutions for the new construction, remodeling or replacement project.

Hometown Comfort Pros HVAC Dealer and Installer is located in Lynchburg Virginia offers Heat Pump Repair, Heat Pump Installs and Maintenance. We serve heating and air conditioning in Forest Virginia, Bedford Virginia, Evington Virginia, Madison Heights Virginia, Amherst Virginia, Smith Mountain Lake Virginia.