Since 1995, Residential Heating and Air Conditioning has made thousands of homes across the Santa Clara County more comfortable, safe and energy efficient. We are both a locally and woman-owned company, with a strong reputation for exceptional customer service, attention to detail and quality workmanship. Our team members have diverse backgrounds and educations, helping us offer a variety of high-quality services.

Cathy Haire

With 40 years of experience in the HVAC industry, Cathy began her career at her father's company, Westco Heating and A/C, Inc, where she worked for 19 years. When her father retired, Cathy established Residential Heating and Air Conditioning in 1996.

Trained by her father to do things right the first time and to explain pricing upfront, Cathy has built an excellent reputation in the HVAC industry throughout Silicon Valley for top-quality, state-of-the-art design and installation, and outstanding customer service.

Huy Phung
Vice President and Head of the Architectural Sheet Metal Division

Cathy and Huy have been the primary shareholders of Residential Heating since 1995, making it a Silicon Valley-owned company. With decades of experience, Huy has been involved in the HVAC industry since 1988. He is the Contractor's Licensing Board C20 & C43 license qualifier for the company.

Billy Stanton
Lead Mechanical Designer

As a valuable member of the Residential Heating and Air Conditioning team since 2000, Billy oversees our Home Performance operations. He has participated in numerous industry training programs by Build it Green, Air Conditioning Contractors of America, California Building Performance Contractors Association, PG&E, and equipment manufacturers. He has extensive training in Home Performance Diagnosis and Remediation, Quality Design and Installation, and is a Diamond-Certified Mitsubishi City Multi Designer. Billy is a certified Home Energy Rating System Rater, a Building Performance Institute Building Analyst Professional, and Building Envelope Professional, and is the Contractor's Licensing Board B license qualifier for our company.

Want the best HVAC contractor in the Silicon Valley area?

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With summer in full swing, home energy use in the Silicon Valley is skyrocketing. Apply these 5 strategies to help keep your home comfortable and your energy bills low during the hottest months of... Read more