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.

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.

Health and Safety Executive (HSE) is the national independent watchdog for work-related health, safety and illness. Their mission is to prevent death, injury and ill health in Britain's workplaces. They are an independent regulator and act in the public interest to reduce work-related death and serious injury across Great Britain’s workplaces.

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 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.

Heat Pump Federation lobbies government for long term policy supporting the electrification of heating and cooling, works to raise awareness, understanding and confidence in heat pump technology across both domestic and commercial sectors, and collaborates with government, industry and consumers to make this a reality.

Heatable offers fixed price boiler replacements to customers UK wide. They have partnered with Alpha, Viessmann & Worcester-Bosch boilers to provide products at super competitive rates. They are here to simplify the boiler buying process, provide transparency of pricing and pass huge savings on to the customers.

Heatco manufactures gas-fired stainless steel duct heaters. Their mission is to design, build, and deploy America’s highest quality gas heaters while providing industry-leading customer satisfaction.

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

HeatFix Scotland Ltd is the market leader in Scotland for service & repair on all renewable and carbon-fueled heating appliances. They are the number one choice in Scotland for professional boiler repairs, servicing, and boiler cover.

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.

Heating and Air Conditioning Supply, Inc. is a proud local distributor of Armstrong Air and Ducane HVAC equipment. Since Heating and Air Conditioning Supply, Inc.'s debut in 2003, they have experienced enormous growth due to experienced staff with excellent product knowledge, quality materials at the lowest prices available and an extreme focus on customer service.

As a leading provider of home heating repairs in New Jersey, Hudson Heating is a family owned and operated business, licensed, bonded and insured that offers both residential and commercial HVAC repairs, service and installation.

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.

HEI was created to bring fresh ideas to the table of market companies & clients who want the very best in Electrical & Mechanical Engineering.

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.

Heinen & Hopman are experts in the field of designing, engineering and installing heating, ventilation, air conditioning (HVAC) and refrigeration systems on both land and sea.

Hemco Inc. is a HVACR organization which provides application engineering and technical expertise for any project with primary focus on the commercial refrigeration sector. Difficult or unusual projects are their specialty.

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.

Herrera Heating and Air Conditioning Inc are more than just an HVAC company in Westminster – they’re partners in creating comfortable and efficient living and working environments. And as a trusted family-owned HVAC contracting company with over 30 years of experience, they pride themselves on delivering comprehensive services for both residential and commercial properties in Westminster and the entire Metro Denver area.

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.

Highside Chemicals, Inc. has manufactured the highest quality chemical products for the maintenance, installation and repair of refrigeration, air conditioning and plumbing systems for over eighty-five years. All products are thoroughly tested and proven to perform to the highest standards. Their commitment to quality along with excellent customer service and technical support makes Highside Chemicals the best choice.

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.

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.

Hitecsa is a Spanish market pioneer in the design, manufacture, and prescription of industrial air conditioning equipment. As a specialist in air conditioning, heating, and ventilation systems, it is an international benchmark in terms of flexibility and productive punctuality.

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.

Hobson & Porter is a family owned construction company with offices in Kingston Upon Hull and Lincoln, operating across Yorkshire and Lincolnshire regions, in the United Kingdom. They operate a Quality Management System which complies with the requirements of ISO 9001: 2015 for the construction of building works for both public and private clients incorporating new construction, renovation, refurbishment and minor works contracts.

Hoffmann Brothers' contractors have provided reliable professional services to local communities like Nashville for over 40 years. Their experienced HVAC technicians can help with all of heating and cooling needs, including HVAC installation, repair, and maintenance services. Their team of expert plumbers are available for a variety of services including drain cleaning and inspections, water heater installation and maintenance.

For nearly 20 years, Holtzople Heating and Air Conditioning has been a leading HVAC company serving central Maryland and southern Pennsylvania, featuring star brands such as Trane, Lennox, Carrier, Bryant, ClimateMaster and more. Holtzople provides complete installation, repair and preventive maintenance agreements for residential heat pumps and air conditioners, as well as oil and gas furnaces and boilers.