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The Most Trusted Source for Appliance & HVAC Industry Professionals
SubscribeDiamond Air Services is a locally owned and operated HVAC company based in Irwindale, CA, serving residential and commercial customers throughout Ontario, Irvine, Arcadia, and surrounding communities. With over 20 years of industry experience, their team of trained technicians specializes in air conditioning and heating repair, system replacement, preventive maintenance, air duct cleaning, and indoor air quality solutions. Their guiding philosophy — 'Quality & Care with Diamond Air' — reflects a deep commitment to doing the job right the first time while keeping customers fully informed throughout the process. Diamond Air Services was founded on the idea of clean and healthy living, with a particular focus on improving the air quality that families and employees breathe every day. They are especially attentive to the needs of vulnerable populations such as children and the elderly, offering air duct cleaning and indoor air quality services designed to reduce allergens and create safer breathing environments. Their full-system audits and preventive maintenance programs help ensure HVAC systems operate efficiently and reliably year-round. The company has earned a strong reputation for transparency and honesty, with technicians taking the time to thoroughly explain diagnoses before recommending repairs or new installations. Customers consistently praise the team for arriving on time, respecting their homes, and delivering fair, competitive pricing. With hundreds of five-star reviews and a 100% customer satisfaction goal, Diamond Air Services has built a loyal base of residential and commercial clients who return for all their HVAC needs. Whether you need emergency AC repair, a full system replacement, routine maintenance, or professional air duct cleaning, Diamond Air Services offers the expertise and customer-first approach to get the job done efficiently and effectively. Their multiple service branches ensure they can reach customers wherever they are, and free quotes make it easy to get started.
Baran from Diamond Air Services has performed our HVAC maintenance several times, and he always does an excellent job. He diligently inspects the system to ensure optimal performance and promptly addresses any concerns. Baran is punctual, efficient, and friendly, and we are very satisfied with the continued service provided by Diamond Air.
Diamond Air was my choice over other HVAC companies to replace my outdated equipment. Not only were they professional and courteous, but they exceeded my expectations. I have nothing but positive feedback - the experienced crew, led by the exceptional Jose, addressed all my questions thoroughly. I would confidently recommend their services to my family and friends.
The communication from Howie Vo, the Operations Manager at Diamond Air, was outstanding. They also offer payment plans for unexpected HVAC expenses. The technician, Salvador, was a true professional - he answered all my questions, was friendly and polite, and tested the system while providing maintenance tips before leaving. I would not hesitate to recommend this business to my friends and family.
I have been a loyal customer of Diamond Air Services since 2021, and I cannot speak highly enough of this company. The entire team, from Anthony to Howie to Bobby and Tiffany, are amazing - they are responsive, friendly, and provide VIP service, treating their customers like family. They do not try to upsell, and Anthony even suggests ways to save me money. Recently, during my annual maintenance service, my technician, Sal, arrived on time, explained everything thoroughly, and completed the work efficiently. Thank you, Diamond Air Team!
I hired Diamond Air for duct cleaning and unit maintenance, and the technicians, Baran and Christian, were excellent. They were friendly and professional, cleaned up after themselves, and were mindful of not tracking any dirt inside my home by wearing shoe coverings. I highly recommend Diamond Air for all your HVAC needs.