Comfort, efficiency, and energy savings are yours.

Plus up to $6,500 in PG&E home upgrade rebates!

Call us to learn more.

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When you invite friends and family to your home, you want it to feel comfortable for them. When you bring us to your home for heating and air conditioning service, we want you to feel comfortable! That's why Greiner Heating and Air Conditioning has focused for decades on a professional, relationship-building approach to our work.

What you get with Greiner Heating and Air Conditioning:

  • 100% focus on residential work
  • Complete honesty in all phases of the job
  • The region's best Energy-Saving Heating and Air Conditioning installations
  • The region's top Home Energy Upgrade California participant
  • Efficiency with your investment
  • Happy employees and technicians who make your life easy

If you're looking for installation or service for your home, look no further – call us today!

 

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SERVICE TECH

(Entry Level & Experienced)

 


Home Upgrade CA


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Heating & Air


Solar Energy


Tankless Hot Water Heater


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What Our Customers are Saying

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Very friendly, professional service from start to finish!

    Comfort Advisor: Danny

    Installers: Ruben, Bobby & Jairo

    Mike E, Vacaville

  • Would you recommend Greiner Heating & Air?

    Definitely!!

    Please tell us why?

    Nancy H, Davis

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

    Professional and thorough.

    Comfort Advisor: Nathan

    Installers: Miguel, Dylan & Jairo

    Natalie M, Davis

  • Would you recommend Greiner Heating & Air?

    Absolutely! No hesitation!

    Please tell us why?

    Judy S, Vacaville

  • Would you recommend Greiner Heating & Air?

    Absolutely!!

    Please tell us why?

    Richard N, Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes – and already have

    Please tell us why?

    Phil & Kathy C., Davis

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    GREAT customer service!!

    • Fast
    • Friendly
    • Easy to work with
    • Extremely professional

    Thank you!

    Brian S, Fairfield

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Seems like you know what you’re doing!!

    Robert K., Fairfield

  • Would you recommend Greiner Heating & Air?

    May 16, 2013

    We recently received your survey regarding your service, asking if we would recommend Greiner, and why.

    Manuel & Diane L., Vacaville

  • Would you recommend Greiner Heating & Air?

    Without reservation

    Please tell us why?

    Sandy R, Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Elvis M., Suisun

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Nathan & Justin are great to work with! They explained everything in great detail and the installation was excellent.

    Thanks again,

    Tim & Diane H., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Outstanding service at all levels:

    Mark & Rena D., Davis

  • Would you recommend Greiner Heating & Air?

    Absolutely!

    Please tell us why?

    Al & Susan B., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes! To everyone!

    Please tell us why?

    Paul & Joan D., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Efficient, courteous, knowledgeable.

    Comfort Advisor: Nathan

    Installers: Miguel & Bobby

    Charles & Rene H., Fairfield

  • Would you recommend Greiner Heating & Air?

    Absolutely!

    Please tell us why?

    Allison S., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Dennis & Sue B, Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Friendly; east to talk to. Service was quick & somewhat painless. Cost was reasonable & different furnaces were explained, so I learned something.

    Roberta Y., Dixon

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Honest salesperson/advisor. Polite, neat, courteous installers

    Comfort Advisor: Nathan

    Installers: Ruben & Heladio

    Francine C., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Linda S., Davis

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

    Customer service, sales person and installer were great and on time. Never thought about Greiner Heating & Air, but glad I did.

    Miranda C., Vacaville

  • Would you recommend Greiner Heating & Air?

    YES!!

    Please tell us why?

    Pat L., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Good service and knowledge. Pleased with the work that was completed in our home and in a timely manner. Thanks :)

    Juan P., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes. I have & will continue to do so.

    Please tell us why?

    Les & Jean C., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Service oriented to our needs and action to reduce cost

    Marcus C., Davis

  • Would you recommend Greiner Heating & Air?

    Yes, employees and service were very professional.

    Please tell us why?

    Margaret S., Woodland

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Maria J,, Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Marian & Bruce C., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Nancy H., Davis

  • Would you recommend Greiner Heating & Air?

    I do!

    Please tell us why?

    Pat M., Fairfield

  • Would you recommend Greiner Heating & Air?

    Please tell us why?

    Because you are a great company to deal with! I love the way you answer the phone. Everything went perfectly. Thanks for the Starbucks gift card. That's a nice touch!

    Patti F., Fairfield

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Ricky & Ramona M., Suisun

  • Would you recommend Greiner Heating & Air?

    Yes...

    Please tell us why?

    Robert & Sherry B., Fairfield

  • Would you recommend Greiner Heating & Air?

    Definitely!!

    Please tell us why?

    Roy E., Davis

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Rudy & Mary H., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Clean, courteous, professional service from genuinely nice technicians! Good value too.

    Steven M., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Very professional and honest

    Sue C., Dixon

  • Would you recommend Greiner Heating & Air?

    Yes! I would definitely recomment your company to my family, friends and neighbors. I have to say sincerely that Greiner Heating and Air is the best!

    Please tell us why?

    Yvette T., Vacaville

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

    Ana & Juan S., Woodland

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    You have been very professional, efficient, and cordial while giving us high quality service and what we onsider to be a good product.  Thanks!

    Anna & Marian C., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    All of the personnel are knowledgeable about their craft, easy to talk to , and friendly.

    Comfort Advisor: Alex

    Claude S., Fairfield

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Dan N., Winters

  • Would you recommend Greiner Heating & Air?

    Yes, I would - (10/5/2015)

    Please tell us why?

    Debbie P., Woodland

  • Would you recommend Greiner Heating & Air?

    YES!

    Please tell us why?

    Excellent service from beginning to end.  A big thank you to Carlos, Ruben, & Luis!!!

    Comfort Advisor: Carlos

    Denise M., Suisun

  • Would you recommend Greiner Heating & Air?

    YES

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Great service, friendly staff, knowledgeable, and reliable.

    Comfort Advisor: Roger

    Installers: Ruben and Tuan

    Diane A., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes I would.

    Please tell us why?

    Dottie and Rick D., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes, we would recommend

    Please tell us why?

    Elizabeth M., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Service and respect are obvious traits of the company.

    Comfort Advisor: Nathan

    Jane and Matt G., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes, certainly.

    Please tell us why?

    Kim D., Dixon

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Professional, knowledgeable, and fast service!

    Comfort Advisor: Carlos

    Installers: Ruben and Luis

    Larry S. , Woodland

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Friendly and professional.  Only difficulty we had was having to insist you provide a filter for our new unit.

    Comfort Advisor: Roger

    Laura S., Davis

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    The air conditioning works great!  The guys that came did a great job.

    Comfort Advisor: Danny

    Linda P., Woodland

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Lois J., Davis

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Louise K., Dixon

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Great customer service along with employees that knew what they were doing.  Everything about the HVAC works great and the best part is we saved money.  Thank you!

    Michael C., Woodland

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Very helpful.  They listened to us.  Honest.

    Comfort Advisor: Nathan

    Installers: Edwin and Heladio

    Norman and Shelly W., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes yes many times

    Please tell us why?

    You were so kind and helpful.  Did a very good job, I enjoyed all of you very much.  Nice people.  Thanks so much for the fast and good service.

    Robin B., Fairfield

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

    Ruth D., Dixon

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Great customer service: From my first call to your last man on the install.  Also great service from Greg

    Comfort Advisor: Nathan

    Susan H., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes, I would.

    Please tell us why?

    Theresa and Doug C., Winters

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Friendly servicemen and very efficient!

    Comfort Advisor: Danny

    Installers: Edwin, Ruben, and Heladio

    Wayne and Joanne O., Dixon

  • Would you recommend Greiner Heating & Air?

    YES

    Please tell us why?

    Woody M., Suisun

  • Would you recommend Greiner Heating & Air?

    Yes, we certainly would. 

    Please tell us why?

    Barbara C., Suisun

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Everyone we dealt with was very professional, thorough explaining things very clearly and made us feel at ease.

    Comfort Advisor: Roger

    John E., Fairfield

  • Would you recommend Greiner Heating & Air?

     YES

    Please tell us why?

     Service is always professional

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

    John & Lorraine M., Davis

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Dennis N., Vacaville

  • Would you recommend Greiner Heating & Air?

     Yes

    Please tell us why?

    , Dixon

  • Would you recommend Greiner Heating & Air?

    Without Hesitation!

    Please tell us why?

    Russ P., Vacaville

  • Would you recommend Greiner Heating & Air?

    Most Definitely!

    Please tell us why?

    Rich S., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes, absolutely

    Please tell us why?

    Great friendly people, hard workers, and always, always, always when the job is done - A+ work from top to bottom. Thanks Greiner.

    Edward S., Dixon

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    1. You're a local company and have a reputation of being reliable.

    Ann W., Woodland

  • Would you recommend Greiner Heating & Air?

    Definitely 

    Please tell us why?

    Kimberley W., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Because you care! I had a couple of problems and they fixed it right away. I'm a happy customer. 

    Comfort Advisor: Danny

    Kathleen W. , Winters

  •  

    Would you recommend Greiner Heating & Air?

    Yes

     

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Most definitely

    Please tell us why?

    • Best customer service

  •  Would you recommend Greiner Heating & Air?

    Yes!!

    Please tell us why?

    Very professional explained everything no matter who many times I asked the same question.

  •  Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    YES 

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes.

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Highly Recomended w/praise

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    YES

    Please tell us why?

    Did what they said they would do!

    Cleaned up old problems

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes - Yes - Yes

    Please tell us why?

    Great crew, very professional. Clean workers and no mess. 

    We thank the whole crew.

    Thanks again

    Nick & Juanita N., Dixon

  • Would you recommend Greinger Heating & Air?

    Yes I would & will.

    Please tell us why?

    Ronald B., Suisun

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    You guys are the easiest people to work with, period. Super fair prices too.

    Thanks!

     

    George B., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes. Absolutely.

    Please tell us why?

    #1. Competent

    #2. Friendly, relaxed, courteous.

    Eric L. & Jill S., Winters

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Audry M., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes Yes!

    Please tell us why?

    Subhash R., Davis

  • Would you recommend Greiner Heating & Air?

    Yes, I would definitely recommend Greiner.

    Please tell us why?

    Martina S., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Nicole A., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes.

    Please tell us why?

    Mom is very happy with new unit. She said that don't have to worry about it anymore. 

     

    Kimiko H. , Fairfield

  • Would you recommend Greiner Heating & Air?

    ABSOLUTELY!

     

    Please tell us why?

    Very professional... impressed by Ken, Karoline & Sean!

    Thanks!

    Herbert H., Fairfield

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Cecilia J., Fairfield

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    They were very professional + quickly did the job at hand. After job was completed, sent us a thank you!

    Roger & Margaret K., Vacaville

  • Would you recommend Greiner Heating & Air?

    Yes and have done so.

    Please tell us why?

    Reliable, courteous, prompt service, positive feedback from inspectors.

    Kirk & Kathleen S., Davis

  • Would you recommend Greiner Heating & Air?

    Absolutely

    Please tell us why?

    Excellent service from initial phone call to estimate to completion of project. Consummate Professionals.

    Thank you.

    Mark T., Woodland

  • Would you recommend Greiner Heating & Air?

    Yes - and I have done so.

    Please tell us why?

    Patricia W., Vacaville

  • Hello David and Patricia,

    My sincere apologies for the delay in sending you this letter.

    Your staff did some work for us (in August), and you send us a Survey Sheet.

    Bruce & Paulette D. , Vacaville

  • Good people. Good service. Good products.

    John. A, Sacramento, CA

  • The quality of a new heating and air conditioning system is not based on the equipment that comes inside of the cardboard boxes - it is based on the people who sell it, install it and service it. So there is no higher quality system than the one that comes from Greiner.

    Stacy W., Davis, CA

  • The workers did a very good job. Alex handled everything from beginning to the end very professionally.

     

    Thank you

    George W., Fairfield, CA

  • All the men were professionals. They were polite, efficient and friendly. 

    P.S. thanks roger for the gift coupon (Starbucks).

    Martha Y., Davis, CA

  • You have great employees - they're friendly and genuine and knowledgeable. That fact that they have great camaraderie and like working for Greiner says a lot. I also appreciate the honesty and forthrightness displayed without being pressure to buy "up" or beyond what was reasonable/expected.

    Wendy S., Woodland, CA

  • Great service and competitive prices. Thanks for the Starbucks card. We are warm and toasty with our new heating system.

    Phil + Henriette S., Davis, CA

  • Excellent customer service

    Excellent product and workmanship

    Paul J., Davis, CA

  • You are dependable, on time, and extremely fun.

    Vic and Penny H., Fairfield, CA

  • No surprises! All of your people were courteous and efficient. We have used Greiner in the past and will recommend you/

    John C., Fairfield, CA

  • Courteous and professional workers and staff.

    Paula and Lawrence B., Vacaville, CA

  • Greiner gave me excellent service, were efficient and did a great job. They worked until the job was completed and left my house as they found it! 

    Susan B., Fairfield, CA

  • Would you recommend Greiner Heating & Air?

    Absolutely, so enthusiastic

    Please tell us why?

    Gina D. & Bill W., Davis El Macero, CA

  • Would you recommend Greiner Heating & Air?

    Yes! 100& Yes and I always do!

    Please tell us why?

    Professional, quality, friendly, promot, and you have integrity!

    Design Specialist: Jacob

    James & Lucinda C., Davis, CA

  • Would you recommend Greiner Heating & Air?

    Absolutely!

    Please tell us why?

    Sandy S., Davis, CA

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Denise P., Davis, ca

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Lois H., Dixon, CA

  • Would you recommend Greiner Heating & Air?

    Definitely!!

    Please tell us why?

    Anita G., Vacaville, CA

  • Would you recommend Greiner Heating & Air?

    Yes!

    Please tell us why?

    Katherine C., Vacaville, CA

Are Tankless Water Heaters Efficient?

water heater adjustment knob

Is your failing water heater struggling to keep up with your family’s showering schedule? Learn how an on demand tankless water heater installed by Greiner can provide efficient hot water for your Davis, Dixon, or Vacaville, CA home for decades. Schedule professional tankless water heater installation with Greiner.

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