About Us

About Bitter Heating & Air Conditioning, Inc.

24-Hour HVAC Services in Baton Rouge & Denham Springs

For the past 26 years, 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 you have your ideal comfortable indoor air quality. 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, 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 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. 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!

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

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
  • “Hands down the best AC and Heating company in town. I?ve used them for many years now and have always had the best service from their company. Always on time, always fair pricing, and ALWAYS professio ...”

    - Kathy F.
  • “Anyone can look great when there's no trouble. But when things go a little bit sideways, you really learn who you're dealing with. Our sincere thanks to Trae and everyone at Annison-Bitter for ...”

    - Matt Mullenix
  • “GREAT company! And GREAT people!”

  • “Anniston and Bitters installed my HVAC during the construction of my townhome community. The unit installed was the proper size for my home. Today was my semi annual cleaning and maintenance check. A ...”

    - Renee
  • “Really awesome company. The team truly cares about their customers.”

    - Felisha