You can count on the local guys to be on time – we're already in your neighborhood!

Greiner Heating & Air Conditioning is 100% residential heating and air-conditioning company... you might see us at the local donut shop... but we won't be on the roof, since we don't do commercial work! We started in 1991 and still serve the same service area! Most of our competition has to go to the Bay Area or Sacramento to find customers who don't remember them. Located in Dixon, CA, we employ highly trained, certified people whose goal is to make our company the best service company in The Solano & Yolo Counties Area.

You get the local specialists

Our company specializes in designing, engineering, and installing complete energy-saving solutions for owners of existing homes just like yours. We take special pride in the craftsmen we train and employ--a fact you'll notice immediately in the attitude and integrity they bring to your home. The first employee hired (Dennis L.) still works at Greiner Heating and Air! Our entire company works hard to make your experience with us both hassle-free and enjoyable. Should we make a mistake, we will admit it and do everything in our power to correct it to your satisfaction.

  • Voted "Best Heating & Air Contractor" & "Best Solar Contractor" by readers of The Vacaville Reporter for 2005, 2007, 2009, 2010,2011 and 2012 also by the readers of The Daily Republic too for 2013!
  • Angie's List "Super Service Award Winner" 2012
  • Voted "Best Contractor to Work For" in the Western USA for 2006
  • Member ACCA
  • Certified by NCI for air-flow diagnostics and air-balancing
  • Lennox Dealer
  • American Standard Dealer
  • Largest Residential (only!) Heating and Air Conditioning Dealer-Contractor in Solano and Yolo Counties

You get more than a "run to failure" company

Many of the competitors have a "run to failure" method of service. This means that they come to your house and replace just the part that failed as fast as they can... missing the root-cause of the failure and leaving you vulnerable to more unplanned breakdowns.

The utility company and the heating and air industry has fought this type of cheap-shortcut service for decades. This year (2013)PG&E has approved us as a "Qualified Contractor for PG&E's Quality Care" program. This allows us to offer you up to $850 in rebates for proper maintenance!

Of course we make house calls

From the professionalism of our comfort engineers, to the dedication of our field personnel, we will deliver the best service to you. More like Nordstrom's or Macy's than Walmart. We take our responsibility very seriously when you place your trust in us. We pledge to always tell you up front what your cost will be to complete your job correctly. We make it a point to go over any details or limitations of the proposed system that will affect your enjoyment of the end result. You are told exactly what to expect up front. We back this philosophy with our exclusive written guarantee when choosing Greiner Heating & Air Conditioning to contract your job:

“We guarantee that the system(s) we have installed in your home will heat or cool as promised. If the desired temperature range at your thermostat is not achieved, we will repair or replace the system at no charge."

Compare our guarantee with the limitations, fine print and exclusions other companies tend to use to back their work today. This is why Greiner Heating & Air Conditioning continues growing with more satisfied customers each and every year. Give us a call for your service needs and see what you've been missing.

And yes, we're fun

And dedicated

The best way to get to know is is to work with us!

Let's talk about the needs for your home.

Schedule Service

Get Started
Up to $1,700 in Savings and Financing!
For service, replacement, solar and home-performance energy upgrade projects
Greiner Heating and Air Conditioning, Man sealing duct work, CA
Whether or not someone in your household suffers from asthma or allergies, poor indoor air quality (IAQ) can contribute to health issues. Fortunately, with the right home performance contractor, you... Read more