With more than 20 years in business H & H Commercial Services, Inc. is proud to offer a wide range of commercial HVAC services to businesses in the Philadelphia area. Their highly trained technicians install, repair, and maintain heating and ventilation systems, air conditioners, refrigeration systems, and more.

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.

Haisma Heating & Cooling Inc. is an HVAC company serving West Michigan. The company was established by Garry Haisma, a Northwest side Grand Rapids area native, in 1981.

Haley Mechanical, headquartered in Dexter, Michigan, is one of the pre-eminent residential HVAC companies in Michigan, servicing the Ann Arbor area. Services provided include Heating, Cooling, Geothermal Heating, HVAC, Plumbing, Electrical, Generators, Air Quality, Repair and Installation, and Drain Cleaning.

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.

Hamel’s Air Conditioning and Heating is a small, family-owned business where customers are part of our family, not a number. We strive to provide the same level of service we would expect in our own home for each customer we serve. We can provide this level of service because we are not the biggest HVAC business in town and never will be. Instead, our focus is on an unrivaled customer experience.

At Hanson Heating & Air provide the service, repair, and install products such as air conditioning, boilers, ventilation, generators, heat pumps, zone systems, air purifiers, and high-efficiency equipment for residential and commercial locations.

In the past 60 years, HE has been dedicating itself to the prosperity and development of China’s equipment manufacturing industry. With great efforts, it has developed a series of leading products that ranges from nuclear power, hydropower, coal power, gas power, ships power plants and electric-driven devices to turnkey power plant projects, in which the core technical competences have reached the world’s advanced level.

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.

Harts Services was founded in Tacoma in 2013 by co-owners Richard Hart and Dan Hartsough. Harts Plumbers, Electricians and HVAC Technicians offers residential plumbing, electrical and HVAC solutions and has a 4.9/5 rating on Google. Guided by its motto, We Care More, the company is committed to incorporating a caring attitude into every aspect of the business.

Haskel is the major manufacturer of highly engineered pumps, gas compressors, valves and equipment designed to generate and control high pressures and deliver high-pressure gases in a wide variety of applications. As an Ingersoll Rand business, Haskel leverages a global network to offer local support and product specific expertise.

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.

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.

Since 1914, HB McClure has served homes and businesses in Central Pennsylvania by providing premier residential, commercial, and design/build mechanical services, including heating, cooling, plumbing, electrical, and fuel oil and propane delivery. Our expert technicians evaluate each job, recommend the best solutions, and allow the client to choose the right option for their needs.

Head’s Heating & Air Conditioning is an HVAC company that offers complete heating and air conditioning services in the Mobile and Baldwin county area. Their company was established in the year 1979.

At Heartland Heating & Cooling, they're more than just a repair company – they're home comfort specialists. Their team has extensive experience servicing and repairing all makes and models of residential heating and cooling equipment. Their mission is to provide prompt, professional, quality heating & cooling services to their customers in the Central Ohio area, and to build a reputation as being honest and committed to customer satisfaction.

Heat Merchants supplies a comprehensive portfolio of heating, plumbing and renewable energy solutions for both domestic and commercial projects. They also provide a range of support services to customers include heating system design and specification, commissioning, ancillary certification, after-sale service and installer training.

Heat Pumps UK, a trusted company with years of industry experience providing an end-to-end service for customers has been looking to upgrade its heating system and taking advantage of the available funding schemes.

Heat-flo, Inc. is a design, sales, and manufacturing company dedicated to providing high-quality, cost-effective solutions for hydronic, solar, and electric-based water heating applications and high-efficiency hydronic and radiant heating applications.

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.

Heatingcompany is the master company from Moosburg for all questions about heating, plumbing, bathroom renovation, air conditioning technology, heating modernization, building services and living room ventilation. Together, they will find the right solutions for users that will make them feel comfortable in the home in the long term.

Established in 1968, Heatmiser has become one of the UK’s smart room thermostat manufacturers. Heatmiser has established partnerships with heating installers and heating equipment manufactures across the UK and has the ability to private label and custom design.

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.

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.

HiiLIFE specializes in providing bespoke luxury technology & entertainment packages tailored for the construction, leisure, and residential sectors. The company serves as a comprehensive one-stop shop, offering a wide range of products and services, including HVAC systems, AV systems, home entertainment, lighting, premium appliances, white goods, climate solutions, and smart home technology.

Since its founding in 1910, Hitachi has responded to the expectations of society and its customers through technology and innovation. They provide a wide range of services, including HVAC systems, Information & Telecommunication Systems, Social Infrastructure & Industrial Systems, Electronic Systems & Equipment, Construction Machinery, High Functional Materials & Components, Automotive Systems, Smart Life & Ecofriendly Systems.