• Lennox Home Comfort
    Receive up to a $1350 Rebate from Lennox
  • Give Your HVAC System a Fresh Start

Comfort, efficiency, and energy savings are yours.

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

Call us to learn more.

Schedule Service

Get Started

We’re Open for Business!

However, during the current COVID-19 restrictions, we have limited preventive maintenance appointments available so that we can instead dispatch technicians to repair/replace failed systems. We anticipate (with a positive attitude!) that we will be able to increase capacity as soon as possible.

The Good News! We have the capacity and are accepting same-day and next-day appointments for trouble calls to repair or replace furnaces, air conditioners and water heaters. We have technicians standing by to help you with any problems. Call to schedule if you need help.

Sincerely,

The Greiner Team


 

Our Special Process During the COVID-19 Pandemic

 

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!


 

NOW HIRING:

SERVICE TECH

(Entry Level & Experienced)

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?

    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?

    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?

    Dennis & Sue B, 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
  • Would you recommend Greiner Heating & Air?

    Absolutely! 100%

    Please tell us why?

  • Would you recommend Greiner Heating & Air?
     Definitely
    Please tell us why?
  • Would you recommend Greiner Heating & Air?
    Yes
    Please tell us why?
  • Would you recommend Greiner Heating & Air?
    Definitely
    Please tell us why?
  • Would you recommend Greiner Heating & Air?
    Absolutely!
    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?

    Everything is handled professionally, from the first phone inquiry to the cleaning following the work. 

    "Quality is remembered long after price is forgot."

  • Would you recommend Greiner Heating & AIr?

    Yes, I do. 

    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. (Thank you for your kind note with the gift certificate!)

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    With gusto-absolutely.

    Please tell us why?

    Very professional company, well-managed. Employees work as a team and they are well trained.

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Make everything easy on the customer. Professional installers, very nice staff.

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

    Yes Yes!

    Please tell us why?

    Rick is a super guy and his crew of installers was so good that I felt like nominating them for an award for some kind! Follow-up by Rick was great too. 

  • Would you recommend Greiner Heating & Air?

    Yes, always (and scold when they don't)

    Please tell us why?

    Completely reliable, trustworthy, dependable. Professional conscientious. Thank you!

  • Would you recommend Greiner Heating & Air?

    Yes

    Please tell us why?

    Local company

    Excellent reputation

    Qualified technicians

    Our experience with Greiner Heating & Air has met above & beyond needs.

  • 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, we would gladly recommend Greiner!

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

     Absolutely!

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

     Yes

    Please tell us why?

  • Would you recommend Greiner Heating & Air?

     Yes. The service was exceptional!

    Please tell us why?

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.

frozen pipe on air conditioner
The last thing you want to have happen on a hot summer day in Davis or Dixon is for your AC to shut down. If you’ve walked outside and noticed ice on your air conditioner, you might think that might... Read more

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