The most important factor in choosing a heating and air conditioning contractor is trust. Greiner Heating, Air, and Electric carries the highest training and qualifications in the industry. We’re happy to bring this level of service to homes in our region!

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Better Business Bureau

For over one hundred years, BBB is the preeminent resource to turn to for objective, unbiased information on businesses and charities. Their free Business Reviews and BBB Wise Giving Charity Reports help people make the right purchasing or donation decision. Greiner Heating, Air, and Electric is a BBB-accredited company.

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North American Technician Excellence

Founded in 1997, North American Technician Excellence (NATE) is the nation’s largest non-profit certification organization for heating, ventilation, air conditioning and refrigeration technicians. NATE certification tests represent real world working knowledge of HVACR systems. Developed by a committee of industry experts nationwide, our NATE exams represent HVACR topics pertinent to contractors, educators, manufacturers and utilities alike.

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BPI GoldStar Contractor

All BPI GoldStar Contractors commit to employing BPI certified professionals and doing work according to BPI Standards. BPI certified professionals have passed BPI’s rigorous written and in-field practical exams that verify their knowledge and skills in building science solutions. They know how to improve energy efficiency while providing important safety functions such as mold prevention, carbon monoxide testing, and combustion appliance safety checks. They also have the know-how to help prepare your home for geothermal or other types of energy upgrades.

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National Comfort Institute

NCI certified professionals, using the methods and training that Performance-Based Contracting provides, help you solve a wide variety of comfort and safety issues in your home, with a focus upon measureable results and utmost professionalism.

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Air Conditioning Contractors of America

It’s true: some contractors are better than others. Builders and homeowners need to be sure that the indoor environment contractors they hire are doing the right thing, the right way. That’s where ACCA’s QA accreditation program comes in. The QA program is designed from the ground up to focus on real American National Standards Institute benchmarks.

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Bay Area Regional Energy Network

Home Upgrade is an Energy Upgrade California® program specifically for Bay Area homeowners and implemented by the Bay Area Regional Energy Network (Bay-Ren). Bay-Ren Home Upgrade is available to homeowners in the following cities in the Greiner Heating, Air, and Electric service area: Vacaville, Fairfield, Suisun City. Talk to us about the special incentives available!

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Lennox 2020 Centurion Award

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What can you really save with solar?

You can save more money with better solar panels, and you can save more than just money with SunPower. Save time, save fossil fuels, save yourself the hassle of grid outages—with SunPower solar + storage you don’t have to choose.