- A. Blasquez E. Industrial Refrigeration [IA][Direct] -
Industrial ammonia refrigeration engineering and installation contractor serving the processed foods, food distribution warehouse, cold storage, meat, poultry, deary, brewry, chemical and soft drink industries.
- ACE Daikin Pte, Ltd. [IA][Direct] -
A manufacturer, distributor and contractor for residential, commercial & industrial air conditioning systems.
- A. C. Services [IA][Direct] -
Residential, commercial and industrial HVAC equipment sales, service and installation.
- Adapt, Inc. [IA][Direct] -
Portable air conditioning and spot cooling for cooling people, processes, and equipment; from 8000 to 180000 BTU.
- Affordable Heating & A/C - South San Francisco, CA
 [IA][Direct] - AIRCO Engineering Ltd. [IA][Direct] -
Design, installation, and service to residential and commercial customers in Russia, Ukraine, Turkmenistan, Yugoslavia, etc.
- Air Conditioning Contractors of America [IA][Direct] -
Representing heating, ventilation, air conditioning, and refrigeration contractors. ACCA provides information and services to HVACR contractors, including load calculation and system design procedures, CFC Certification programs, industry relations.
- Air Engineers, Inc. [IA][Direct] -
Heating and air conditioning.
- Airflow Heating & Cooling, Inc. [IA][Direct]
- Air Masters of Tampa Bay [IA][Direct]
- Air Treatment Heating & Cooling [IA][Direct] -
Specializing in residential heating and air conditioning.
- All Makes Heating and Air Conditioning (AMHAC) [IA][Direct]
- All Seasons Heating and Air [IA][Direct] -
In Huntsville, Alabama.
- All Systems Go [IA][Direct] -
Heating and air conditioning installations, sales, service and repairs.
- American Air Conditioning [IA][Direct] -
Specializes in comfort systems for the home or office, in addition to commercial refrigeration.
- American Comfort Heating and Cooling [IA][Direct] -
Sales, service, installation, boilers, furnaces, air conditioning, air duct cleaning. 24 hour service.
- American Mechanical Services [IA][Direct]
- Amerifirst Service Inc [IA][Direct] -
Air conditioning and heating equipment; Internet service calls available.
- Arista Air Conditioning Corp. [IA][Direct] -
Installs and services commercial air conditioning, refrigeration, heating and ventilation systems.
- Arrow Heating & Air Conditioning [IA][Direct] -
An authorized prime contractor for Consumers Gas.
- Atlantic Air Conditioning Supply Services, Inc. [IA][Direct] -
Source for central air conditioning needs from replacement parts to replacement systems.
- Bailey Refrigeration [IA][Direct] -
HVAC, refrigeration and dehumidification.
- Belair Engineering [IA][Direct] -
Heating and cooling service.
- Beverly Heating and Cooling, Inc. [IA][Direct] -
Sells, services, and installs all types of both residential and commercial heating, cooling, ventilating, humidifying, and air cleaning equipment.
- Blue Mechanical Contractors [IA][Direct] -
Heating and cooling contractor, featuring Heil products.
- Bourque Heating And Cooling Co. [IA][Direct] -
Sells, services, and installs systems in the Cape Cod area.
- Brennan & Associates, Inc. [IA][Direct] -
Specializes in commercial and industrial HVAC installations and preventive maintenance.
- Campbell & Bruce Refrigeration Service [IA][Direct] -
Full-service HVAC company.
- Capital Heat, Inc. [IA][Direct] -
Heating and air conditioning services to homes and businesses.
- Climate Control Systems, Inc [IA][Direct] -
Heating, air conditioning, & ventiliation contractor.
- Climate Design [IA][Direct]
- Cold Wave Heating and Cooling Service [IA][Direct] -
Air conditioning installation and service company.
- Colonial Mechanical Corporation [IA][Direct] -
Heating, ventilating and air conditioning contractors.
- Comfort Masters Company [IA][Direct]
- Commercial Refrigeration Inc [IA][Direct] -
Offers design, manufacturing and installation of refrigeration systems for ice arenas and curling rinks.
- Commercial Service Company [IA][Direct] -
Provides maintenance, sales and installation of air and heat systems.
- Cox Heating and Air Conditioning, Inc. [IA][Direct] -
Design, sales, installation, service and repair of residential and industrial air conditioning and indoor air cleaning systems in Western Florida.
- Cozy World [IA][Direct] -
Air conditioning and heating service and installation. Serving the greater Toronto area.
- Crown Air Mechanical Services [IA][Direct] -
Installs and services major brands of heating and air conditioning units in San Antonio and surrounding Bexar County.
- Dade Service Corporation [IA][Direct]
- Dave's Service [IA][Direct] -
Design, repair, installation of residential and commercial heating and air conditioning systems. Sells Rheem equipment.
- D&H Climate Control [IA][Direct] -
Air conditioning and heating service and sales.
- DJ Heating & Air Conditioning, Inc. [IA][Direct] -
Serving the Hudson Valley of NY state.
- Domestic Air Condioning [IA][Direct] -
Specialize in the service of non-commercial air conditioners and appliances for management agencies in the NY Metropolitan area, NJ, and LI.
- Dring Air Conditioning and Heating Inc. [IA][Direct] -
Specializing in residential and commercial replacement.
- DualStar Technologies Corporation [IA][Direct] -
Designs and installs HVAC systems into urban, high-rise buildings.
- Efficient Systems [IA][Direct]
- Energy Experts [IA][Direct] -
Energy Experts designs and installs building and facility automation systems nationwide.
- Energy Management Systems [IA][Direct] -
Installation and service of building automation systems. Andover Controls representative for southern Ontario, Canada.
- Environ Technologies Pte Ltd [IA][Direct] -
Regional administrator of the Danduct Duct Cleaning System.
- Florida Heating & Air Conditioning [IA][Direct] -
Provides HVAC design, installation, and service to residential and commercial customers in Southeast Florida.
- Fluidics, Inc. [IA][Direct] -
Diversified mechanical/service contractor with clients throughout Pennsylvania, New Jersey, and Delaware.
- Fox Heating Services Inc. [IA][Direct] -
Specializing in high efficiency boilers & furnaces, electric heat conversion, radiant in-floor heating, AC, remodeling, and oil tank removal and installation.
- Frigotechnika Climatizaciones Ltda. [IA][Direct] -
Attending to air conditioning systems, servicing, spare parts and more.
- Garneski Air Conditioning & Heating [IA][Direct] -
Repair, maintenance and installation of heat pumps, gas and oil furnaces, air conditioners and indoor air quality products
- Gartner Refrigeration and Manufacturing [IA][Direct] -
Industrial ammonia refrigeration contractor serving the processed foods, food distribution warehouse, cold storage and meat packing industries.
- Gastech Heating & Air Conditioning - Woodbridge, Canada [IA][Direct]
- Gilmore ServiceSource [IA][Direct] -
Heating and A/C sales and service, plumbing, duct and carpet cleaning, for Northern California/Sacramento area.
- Gold Mech Services, Inc. [IA][Direct] -
Design, engineering and installation of HVAC, refrigeration and control systems.
- Hannabery HVAC [IA][Direct] -
Sales and service of gas, electric, oil, heat pumps (including ground-source) and custom ductwork. Serving east Pennsylvania and parts of New Jersey.
- Heatway [IA][Direct] -
Radiant floors and snowmelting.
- Hermanson Corporation [IA][Direct]
- Hyvac Air Conditioning Service [IA][Direct]
- Iceberg Cooling [IA][Direct] -
Air conditioning, refrigeration, and heating contractor, serving commercial, residential, and industrial customers.
- Ideal Service Co. [IA][Direct] -
HVAC service and construction company serving residential, commercial, and institutional facilities.
- Illingworth Corporation [IA][Direct] -
HVAC, plumbing, sheet metal, controls, piping, refrigeration.
- Industrial Refrigeration Control Engineering [IRCE] [IA][Direct] -
Industrial refrigeration engineering and installation including turnkey refrigeration and control systems.
- James River Heating & Air Conditioning [IA][Direct] -
Offering residential and commercial HVAC services including installation, maintenance and sales.
- J and P Heating@ (1997)
- Jerry Kelly Heating & Air Conditioning [IA][Direct] -
Residential and commercial HVAC service and installations.
- J. Hogan Refrigeration [IA][Direct] -
Commerical and industrial refrigeration and controled atmosphere.
- Johansen Mechanical [IA][Direct]
- John D. Howell & Associates [IA][Direct] -
Steam and hydronic specialist.
- Kleenair Air Conditioning & Heating [IA][Direct] -
Heating & air specialists serving Sacramento, Placer, Yolo and El Dorado California Counties.
- L & H Airco [IA][Direct]
- Metropolitan Mechanical Contractors, Inc. [IA][Direct]
- MGM Services [IA][Direct]
- Northwest Mechanical [IA][Direct] -
Boiler installation and repairs, hydronic heating, control strategies, radiant flooring, and more.
- Oasis Air Conditioning & Heating [IA][Direct]
- Pacific Weathershield - San Jose, CA [IA][Direct] -
Independent roofing contractor, also offering repair, maintenance, and installation of heating and air conditioning units.
- Perfection [IA][Direct] -
HVAC mechanical and service contractor with offices in Cincinnati, Louisville, Lexington, Knoxville, Indianapolis, Parkersburg, and Charleston.
- Perfection Home Systems [IA][Direct] -
Hints for when your heating or air conditioning system isn't working. links and help with finding a company in your area.
- Perry Electric [IA][Direct] -
Provides heating and A/C installations.
- Prahran Air Conditioning [IA][Direct] -
Specialising in the installation of heating and cooling systems in commercial and domestic projects.
- Pritchard & Fallin, Inc. [IA][Direct] -
Full service HVAC contractor selling and servicing equipment in residential, commercial, and industrial environments.
- R&B, Inc. [IA][Direct] -
Heating and air conditioning.
- Rhyno's Heating, Cooling and Ventilation [IA][Direct] -
Site offers information on all aspects of heating, ventilation, air conditioning and security including Harry Rhyno's Comfort Zone articles on home comfort.
- Roth Bros., Inc. [IA][Direct] -
HVAC contractor, controls, roofing, and service.
- Shamrock Heating and Air Conditioning [IA][Direct]
- Sherman Mechanical [IA][Direct] -
Serving the Chicagoland area. HVAC and plumbing engineering, installation and maintenance for commercial and residential facilities.
- Siebe Environmental Controls [IA][Direct] -
SEC manufactures, installs, and services energy management systems and controls in buildings worldwide.
- Sigma Environmental Systems [IA][Direct] -
Dedicated to installing perfect climate systems for home and business.
- Sippin & Company [IA][Direct] -
Provides home heating fuel, heating & air conditioning equipment, and 24 hour service in the Fairfield County Connecticut area.
- SLV Refrigeration [IA][Direct]
- Stokes Mechanical Contractor, Inc. [IA][Direct] -
Plumbing and air conditioning services.
- Sun Heating and Air Conditioning, Inc. [IA][Direct] -
Heating and air conditioning equipment and service to residential and commercial customers
- T.E.A.M. Marina [IA][Direct]
- THI Group, Inc [IA][Direct] -
SABER, government facilities maintenance, general contracting, mechanical & HVAC contracting, service department, automated logic energy management, building automation & direct digital controls. Located in Ventura, CA.
- Tropic Air Conditioning [IA][Direct] -
Mechanical contractor specializing in all aspects of heating ventilation and air conditioning.
- United Service Alliance Network [IA][Direct] -
Network of independent HVAC service contractors located across the United States.
- University Air & Heating [IA][Direct] -
Residential air conditioning and heating, commercial HVAC (Heating, Ventilation & Air Conditioning), heat pumps, energy efficient furnaces and comfort systems. Located in Richardson (North Dallas), Texas.
- Viking Heating [IA][Direct] -
Making and installing custom sheet metal ducting as well as fabric air dispersion systems.
- Weathermasters Air Conditioning and Heating [IA][Direct]
- W.J. O'Neil Company [IA][Direct] -
Full service mechanical contractor.
- Yamaguchi Air Conditioning, Inc. [IA][Direct] -
Provides heating, ventilating, air conditioning and refrigerating for marine and offshore facilities.
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