NATE - your resource for the finest in heating and cooling
Dial One Sonshine is proud to be NATE certified, offering our customers dependable Orange County HVAC services! When installing, servicing or repairing your heating, ventilation, air conditioning or refrigeration (HVAC/R) system, NATE certified technicians ensure peace of mind.

How NATE Benefits You
Experience product efficiency, greater home comfort and peace of mind

For superior installation and maintenance or service of your heating, ventilation, air conditioning or refrigeration system, ask for a NATE certified technician. A NATE-certified technician is a skilled professional who has proven their knowledge in the HVAC/R industry by passing specialized NATE certification tests.

When using a certified NATE tech, you’ll benefit by:

  • Lower utility bills through proper installation and maintenance
  • Fewer callbacks and warranty returns
  • Fast, efficient service
  • Job done right the first time
  • Equipment that runs at peak efficiency
  • Advice & knowledge of skilled, certified technician
  • Greater peace of mind

From air conditioning and heating installer certifications to residential and light commercial maintenance, NATE techs are the best in the business. So when you call a contractor, ask if they use NATE certified technicians. If they do, ask them to send a NATE technician to your home.

Consumer Prefer NATE Technicians




The Institute of Heating and Air Conditioning Industries, Inc., is a non-profit trade association of contractors, manufacturers, distributors, utility firms, and related businesses actively engaged in the heating, ventilation, air conditioning, refrigeration, and sheet metal industries.

Formally incorporated in 1948, IHACI remains a progressive association dedicated to the education, promotion, and growth of our industry.

Through membership involvement and participation, and adherence to the IHACI Code of Ethics, the association is able to render a myriad of services and benefits to its participating members.

The Board of Directors welcomes your membership in the Institute of Heating and Air Conditioning Industries, Inc.




About ACCA
ACCA is a group of over 4,000 air conditioning contractors who work together to improve our industry, promote good practices, and keep homes and buildings safe, clean and comfortable.

We share one goal: to make the HVACR industry, and every professional contracting business, more successful.

How do we do it? We bring you together with other contractors through unique learning opportunities. We provide exclusive technical, legal, and marketing resources. We bring customers to you. And we fight aggressively for your business interests in Washington, DC.

With roots stretching back nearly a century, ACCA is the only nationwide organization of, by and for the small businesses that design, install and maintain indoor environmental systems.




PHCC Consumer Tips | Learn How To Protect Yourself

It's your home and probably the largest investment you'll ever make. When you need home repairs, you want to hire the best contractor available. You want assurance that the contractor who repairs your plumbing, heating or cooling system is professional, trustworthy, and courteous. And you can have someone just like that.

But how do you find a contractor who fits this description? Sometimes it's difficult. Many "handymen" portray themselves as professionals, but they can compromise your safety and your home.

Choose a professional instead. We're the Plumbing-Heating-Cooling Contractors (PHCC), the trade association for professional plumbing-heating-cooling (p-h-c) contracting firms and the consumer's source for information about the PHC industry.

Our members aren't just "handymen." They're business owners who employ professional mechanics and technicians. They are guided by honesty and integrity, use the latest technology, promote energy and water conservation, and obey all health and safety laws.

The next time you need to hire a firm to service or repair your plumbing, heating or cooling system, follow these tips:

  • Look for the PHCC logo.

  • Companies that use the PHCC logo are official members of PHCC. They proudly display the logo in yellow page advertising, newspaper advertising and other communication pieces. Hire companies that use the logo.