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Heating, Cooling, Wine Cellars | Birmingham, AL


HVAC Specialists in Birmingham, AL

When you are looking for a unique and customer-centric company to serve your HVAC, gas piping, or specialty wine cellar needs, Sullivan Service Co. is the company to call! In 2001, Sullivan Service Co. merged with Sullivan Service Company, and together we bring over 50 years of experience and technology advancements, offering residential HVAC and commercial HVAC services throughout Birmingham, AL.

Our HVAC technicians have built a reputation as reliable and highly competent contractors, and when you call us, you’ll be put in touch with a live person, no matter what time of day it is. If you have a question we can’t answer right away, we will always get back to you with a response. We’ve structured our company from top to bottom to serve the customer—we respect your time and your business, and we take pride in being Birmingham-owned since 1959.

Contact us today to learn about our exceptional services!

  • Thermostat Recycling Corporation Thermostat Recycling Corporation
  • Sullivan Service Co. - Best of HomeAdvisor Award Winner
  • Service Roundtable Service Roundtable
  • Energy Star Partner Energy Star Partner
Hear from Our Loyal Customers!

I appreciate the kind and professional service that I received on 1-18-13. Please thank Larry and Scott for me.

— M. Harper

Bill. Thank you very much for a job well done in such a prompt manner. You are the best!

— Fred

Absolutely love my new Nest thermostat; everything about it is convenient and intuitive!

— Isabeth G.

Read More Reviews

  • Alabama Board of Heating, Air Conditioning, & Refrigeration Contractors Alabama Board of Heating, Air Conditioning, & Refrigeration Contractors
  • Alabama Plumbers and Gas Fitters Examining Board Alabama Plumbers and Gas Fitters Examining Board
  • Gas Engineers is a HomeAdvisor Service Award Winner
  • Angie's List Certified Angie's List Certified
  • Yelp Yelp
Join The Comfort Zone

Take care of your HVAC system, and it will take care of you.

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  • Extend your system’s life
  • Receive priority service
  • Lower utility bills
  • Improved performance

Read More Benefits

Proudly Serving The Entire Greater Birmingham Area

  • Bryant Bryant
  • Daikin Daikin
  • Mitsubishi Mitsubishi
  • Trane Trane
  • Aprilaire Aprilaire
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We Stand By Our Work with a 30-day Labor Warranty


Being comfortable in your home is about more than having the right heating and cooling systems in place, although that’s certainly a good start. We install and service a wide range of AC and heating units in Birmingham, AL, in addition to providing superior indoor air quality products and services to protect your health and wellbeing. Read more

Commercial Services

We understand what it takes to run a business. The last thing you should be concerned about is the performance of your HVAC, indoor air quality, and/or refrigeration systems – whether it’s for your convenience store or any other commercial space you might own. When you contact Sullivan Service Co. for your commercial HVAC installation and services, you can rest assured knowing that you’ll be well taken care of. Read more

Specialty Services

Sullivan Service Co. is a Spire Certified Gas Contractor, specializing in the installation and service of gas pipes, grills, gas ranges, gas logs, and more. Whether you need pressure testing to check your risk of a gas leak or are looking to have an outdoor grill installed, we’re the team to call. We’re also the experts in wine cellar installation and refrigeration. Contact us today for more information!


Regularly scheduled HVAC maintenance extends the lifespan of your system, reduces repair needs, and ensures that your system will perform as effectively and efficiently as it’s meant to. Ask us about our Comfort Zone Service Agreement and the savings you can receive by enrolling in our comprehensive maintenance program. Read more

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