Professional installation of new air conditioning units, including energy-efficient mini-split systems tailored to your home.
Prompt and reliable repair services for heating systems, with same-day emergency options available.
Regular servicing and cleaning to ensure optimal performance and longevity of your heating and cooling systems.
Custom design and consultation for HVAC solutions, focusing on energy efficiency and cost savings.
Quick and efficient installation or replacement of thermostats to improve system control and efficiency.
Queiroio’s Team did a fantastic job installing our new AC unit. Their team was friendly, efficient and very knowledgeable. From the first call to the time they completed the install we knew we made the right decision! Thanks to Dave and the Queiroio’s team for your help! Highly recommend
I have used Queirolo's Heating and Air on a few different properties and they have been amazing. From great communication and reliability, expert knowledge, and fair pricing, they have been wonderful to do business with. Most recently they were able to squeeze in a repair right in the knick of time before an open house on a property I am selling. They saved the day! I highly recommend their services.
Dear Future Clients of Quierolo Heating and Air, I am thrilled to share my exceptional experience with the Samsung mini split system installed by Quierolo Heating and Air, expertly designed by David and Knight Quierolo. This remarkable system, consisting of nine mini splits powered by one master condensing unit, has revolutionized my home's comfort and energy efficiency. Since the installation, I have been delighted to see my PG&E bill reduced by an astonishing 50% on both the heating and cooling sides. Moreover, I am now using less heat energy than I was with my previous fireplace insert, even when running the fan. Most impressively, my air-conditioning bill, which was previously a staggering $2000, has been cut down by more than half, despite the recent increase in PG&E rates. I attribute this outstanding performance to the meticulous design and uncompromising work ethic of David and Knight Quierolo. Their expertise and dedication to excellence have resulted in a system that is not only highly efficient but also perfectly tailored to my needs. I wholeheartedly recommend Quierolo Heating and Air, David, and Knight Quierolo to anyone seeking top-notch service and exceptional results. Their commitment to excellence and customer satisfaction is truly remarkable. Please feel free to contact me if you require any further information. Thank you, David and Knight Quierolo, for your outstanding work! Sincerely, Garrette
We have been using this company for years, very transparent as far as what they do to service our system and what they recommend for future repairs/service. Never have we felt upsold on anything and their pricing is very fair. Definitely feels like dealing with a family owned business rather than a corporate company. 10/10 would recommend supporting this local family owned establishment.
My heater went out so I called these guys 8 o'clock on Tuesday morning and by that afternoon they had someone at my house were very professional and have my problem diagnosed within seconds and my thermostat replaced within 20 minutes and had heater working again. Tony was the technician and he had a helper they were both very nice and very helpful he also cleaned my heater while the other guy installed thermostat. Very impressed with their service and highly recommended.

Your trusted family-owned experts for heating and cooling solutions in Stockton.
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Queirolo's Heating & Air Conditioning Inc is a family-owned and operated business in Stockton, CA, specializing in reliable HVAC services. With a perfect 5-star rating from 36 reviews, we offer expert installation, repair, and maintenance for heating and air conditioning systems. Our team, including David and Knight Queirolo, is known for transparent pricing, exceptional customer service, and energy-efficient solutions like mini-split systems. We serve residential and commercial clients with a commitment to quality and local support.
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