Griswold Controls provides reliable and quality products for HVAC and Irrigation applications. They provide Automatic flow control valves, manual balancing valves, actuated control valves, pressure independent control valves, DeltaT Control valves, actuators, diaphragm valves, and coil piping packages.

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.

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.

HAMPDEN ENGINEERING CORPORATION has built a reputation for manufacturing Cutting Edge, Engineering and Technology Training Equipment of the highest quality since 1954.

Hardcast encompasses Hardcast Duct Sealants and Adhesives, DynAir Airflow Hardware and Accessories, and the Nexus 4-Bolt Flange Closure System. As an industry leader, Hardcast supplies superior products and engineered solutions to ensure the sustainability of your HVAC system.

Hardcast provides high-performance solutions for the Heating Ventilation and Air Conditioning (HVAC) industry, manufacturing rolled duct sealants, mastics, adhesives, coatings and hardware as well as other accessories.

HARDI is an association dedicated to advancing the science of wholesale distribution in the HVACR industry. HARDI members market and distribute heating, refrigeration, air conditioning equipment and supplies, sheet metal, controls, filters and related items.

Harshaw Trane creates and sustains high performing, efficient and secure facility environments. They partner with many of the top-ranked private and public institutions on innovative technology and systems that optimize performance while minimizing energy use and reducing costs over the entire lifecycle of a building.

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.

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.

Hearth Stopper provides customizable, decorative fireplace covers across the USA. Eliminate cold drafts and boost comfort with their premium fireplace opening covers, designed to fit any decor and significantly boost the home's energy efficiency. Learn how to cover fireplace opening with Hearth Stopper fireplace insulated covers.

Heating and air conditioning equipment for residential and commercial applications, 1/2 to 25 tons, under the Comfort-Aire and Century brand names.

HEAT PIPE TECHNOLOGY, INC. (HPT) is a provider of energy recovery and dehumidification systems for commercial applications around the globe. Employing the very latest in passive heat transfer technology, HPT designs and supplies the core systems to the commercial air handling equipment manufacturers.

Heat Transfer Products Group, LLC (HTPG) manufactures energy-efficient refrigeration equipment (evaporators, condensing units, condensers, air handlers, coils and packaged systems) sold under the brands of Russell, Witt, Kramer and ColdZone. They are wholesalers and sales representatives too.

Nailor Industries, Inc. is known for their industry leading customer focused approach to providing innovative commercial and industrial HVAC products. Nailor manufS. Nailor, COOactures a unique and comprehensive line of products essential for a well designed HVAC system.

Heil Heating & Cooling Products cater to residential needs by manufacturing light commercial heating and air conditioning products, air purifiers, condensing units, gas furnaces, heat pumps, accessories, 2-25 ton rooftop units.

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.

Building on over 50 years of experience in HVAC-R coatings, Heresite Protective Coatings, LLC invests in R&D and testing services. Their NSF certification for Food Service Equipment, as well as meeting the rigorous ISO 20340 standard for extreme offshore conditions, show how they develop protection for HVAC-R applications.

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.

Hoffman & Hoffman, Inc. is a company that provides expertise in the selection and application of commercial and industrial heating, ventilation, air conditioning, filtration and direct digital control (DDC) systems. They represent manufacturers of the highest quality HVAC equipment and controls available on the market today.

Holliday Heating + Cooling + Electric has been a trusted name in the Spokane and Coeur d’Alene areas since 1987. When it comes to home comfort and electrical needs, Doc and Chris are the go-to company. Serving the Inland Northwest with 24/7 emergency service, choose Holliday Heating + Cooling + Electric for furnace, air conditioning, electrical, or air quality, or other home comfort repairs and new installations.

HomeServe USA Corp. is a renowned provider of HVAC systems, equipment and home comfort solutions. The services offered by the company include Plumbing, Sewer Line, Heating & Cooling Solutions, Electrical Wiring, Water Service Line, Gas Line, Septic Line, Heating Tune-Ups, Cooling Tune-Ups, and Hot Water Heater Repairs.

Hometown Comfort Pros Heating and Air provide heating and air conditioning services in Forest Virginia, Bedford Virginia, Evington Virginia, Madison Heights Virginia, Amherst Virginia, and Smith Mountain Lake Virginia regions.

Honey-Do-Men is an experienced and full-service home improvement contractor. They provide comprehensive remodeling, repair, and maintenance solutions for home owners. For anyone who requires their assistance in gutter repair or replacement, roof repair, or handyman services, they can help.

Hoshizaki America provides commercial ice makers including flakers, cubers, hotel/motel dispensers, counter top dispensers, ice storage bins, beverage dispensers, reach-in refrigerators, reach-in freezers, megatop sandwich prep tables, undercounter refrigerator/freezers.

Founded on January 1, 2000, House Pro was started with a simple concept - offer unparalleled service and customized heating and cooling solutions to each and every homeowner. They offer emergency AC repair services, available 24/7, to keep residents cool when the heat is on. Trust their experienced technicians for Houston AC repair – they’ve serviced over 35,000 homes in the region.

As a family-owned and operated Greater Houston HVAC Company, Go Admiral serves Spring, The Woodlands, Houston, Katy, and beyond with residential and light commercial heating, AC repair, venting, duct design, and air purification.

HTPG designs and manufactures heat transfer components and equipment for refrigeration applications in the food service, food retail and other non-consumable markets. Its products are sold primarily in the USA and Canada to original equipment manufacturers (OEMs), Air Conditioning and Refrigeration Wholesale (ARW) distributors, and direct to end-user customers.

Hudson is a provider of Refrigerants, Onsite Refrigerant Services and Refrigerant Reclaim, improving the performance of HVACR systems, saving energy, restoring capacity, and extending equipment life.