Hannibal, MO


M-F: 6am - 5pm

Sat: 7am - 4pm
Sun: Closed


Heating and Cooling System Services

Trusted Heating and Cooling Technicians

Trusted Heating and Cooling Technicians

Be comfortable in the right temperature every season with quality heating and air conditioning services from A # 1 Heating Cooling Appliance and Plumbing.

Rely on over 40 years of experience to ensure the perfect temperature in your residential or commercial property. At A # 1 Heating Cooling Appliance and Plumbing, our family owned and locally operated team of professionals will work with you to ensure that you stay warm in winter and cool in the summer.
Give us a call today for your FREE phone estimate. Trust that our honest and reliable technicians are always prompt and will provide you with the quality work and customer service that you deserve at a competitive price.

Heating Services

  • Furnaces
  • Boiler Systems
  • Sales
  • Repairs
  • Installations
  • Service
  • Commercial and Residential

Cooling Services

  • Central Air
  • Cleaning
  • Freon
  • Rooftop Units
  • Spring Maintenance
  • Thermostats
  • Commercial and Residential

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Take advantage of our senior citizen and military discounts!

EPA Certified

Licensed For All Classifications of Refrigeration | Over 40 Years Of Experience | Master’s Degree From The University of Missouri

Contact Us

Call us

We support our freedom of speech and those who risk their lives every day to protect our country and make it a better place - police, firefighters and members of our armed forces.

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Get In Touch


(573) 406-2129

Hannibal, MO

Store Hours

M-F: 6am - 5pm
Sat: 7am - 4pm
Sun: Closed