#1 Heating and Cooling Company in Solano and Yolo Counties

"The folks at Greiner found a way to keep our costs down and provide some preventative service to keep our HVAC running during one of our heat waves. Very dependable "

William H.

"We have had Greiners for many many years probably more than 15 . They come 2 times a year for maintenance and check the system , we have the monthly plan which provides for visit maintenance 2 x a year as well as discounts on non warranty. They people from office to technicians are so polite and compassionate as well as kind"

Pamela L.

"Technician was outstanding! Very professional and it was a pleasure having a professional who cares about the customer and is a great ambassador for Greiner. Thanks again for such a positive experience"

Paul M.

"I’ve used their services for our heating, air conditioning and water heater needs several years and they are very knowledgeable and professional. They do great work."

Stewart T.

"Greiner replaced our old HVAC system , including all the ducts in the attic. What an improvement! The whole house has even air distribution now!! Great, friendly installers who do quality work!"

Jennifer B.

"Excellent company with turnkey service and attention to detail. They were a pleasure to work with. We had our old gas furnace and air conditioner replaced with a new electric heat pump."

Patricia L.

"Greiner installed new equipment for me, and has been very prompt and professional. Today, Tech was very thorough in his inspection and cleaning, and took the time to explain some issues to me in ways I could understand."

Allen C.

"We have had Greiner H/A for years and they have always done amazing job.Oh they also installed are solar system. We have not received a bill for four months."

Nicholas J.

"The men and women at Greiner’s are always professional and always pleasant. Previous and current home heating and A/C units have been serviced by Greiner for over ten years; in fact they installed my new units in 2020, along with a new water heater. I trust Greiner and thank both the company and its employees for their integrity."

Carolyn B.

"Service Technician went above and beyond in servicing my older model HVAC system. Recommended additional maintenance to prolong the life of the HVAC system but did not try to upsell a new model."

Janine A.

"The folks at Greiner found a way to keep our costs down and provide some preventative service to keep our HVAC running during one of our heat waves. Very dependable "

William H.

"We have had Greiners for many many years probably more than 15 . They come 2 times a year for maintenance and check the system , we have the monthly plan which provides for visit maintenance 2 x a year as well as discounts on non warranty. They people from office to technicians are so polite and compassionate as well as kind"

Pamela L.