About Us

About Annison-Bitter Heating & Air Conditioning, Inc.

24-Hour HVAC Services in Baton Rouge & Denham Springs

For the past 26 years, Annison-Bitter Heating & Air Conditioning, Inc. has focused on excellence—both in our HVAC services and in our customer service. As a small, family owned and operated business, we treat our clients as extensions of our own families. We prioritize integrity in our heating and cooling services and will go the extra mile to ensure that your project is completed correctly and to your satisfaction. Give us a call today to see how we can serve you.

Dial (225) 500-2035 and get an estimate from one of our friendly HVAC Technicians in Baton Rouge and Denton Springs.

Prompt, Professional & Reliable Service

Bobby Annison and Don Bitter founded the company in 1993, providing outstanding HVAC services for new construction, design/build, commercial, and residential clients. Since then, Annison-Bitter Heating & Air Conditioning, Inc. has become the premier provider of top-notch heating, air conditioning, and air quality services in Baton Rouge, Denham Springs, and the surrounding areas.

Our team is built of capable professionals with more than 100 years of combined mechanical experience. No job is too big or too small for us to handle, and we will always do so in a prompt and professional manner. We will return your calls promptly, provide honest estimates and updates, and do our best to complete your project as quickly and efficiently as possible.

Reasons to choose Annison-Bitter Heating & Air Conditioning, Inc.:

  • Licensed, bonded, and insured
  • All work performed to code
  • 100+ years of combined experience
  • North American Technician Excellence (NATE) certified
  • Member of the Louisiana Better Business Bureau

Schedule an Appointment Today

Do not go another day in this temperamental Louisiana weather without a functional heating or cooling system. Annison-Bitter Heating & Air Conditioning, Inc. has a live representative ready to take your call 24/7 and will respond promptly to your request for service. We also handle new construction projects for both commercial and residential clients throughout the Baton Rouge, Central City, and Denham Springs area.

Contact us today at (225) 500-2035 to schedule an appointment. We also provide HVAC services in Livingston Parish, Zachary, Prairieville, and Central City, LA!

  • BBB A+
  • Trane
  • Mitsubishi Electric
  • Rheem Pro Partner

What Sets Us Apart?

We Set The Standard For Excellence
  • Financing Available

    Need new equipment? We offer special financing for 36 months with approved credit!

  • Indoor Comfort Specialists

    We take  preventative maintenance measures to keep our customers comfortable year-round.

  • Free & Detailed Estimates

    The Annison-Bitter team is trained to repair or install many different HVAC brands.

  • 24/7 HVAC Assistance

    Our services are provided during the day, after-hours, on holidays and weekends.

Hear From Our Happy Customers

A Solid Reputation Built on Performance
  • “Office staff was also very professional and courteous.”

    - Kelley B.
  • “Just wanted to give a big Thank You to Annison Bitter for a great job.”

    - Eva B.
  • “ It's great to know that there is still companies out there that cherish making the customer happy!! ”

    - Stetson E.
  • “These guys get you going and fast !!! Thanks, guys.”

    - Mark T.
  • “I will never go to another company again.”

    - Haleigh S.