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We Provide Emergency Service!


As your cooling system ages, it can lose efficiency or stop working altogether. At Frank Niesen Company, we provide the highest level of quality in all our installations, and all jobs are performed by highly-experienced technicians you can trust.
  • A/C service and repairs 
  • High Efficiency cooling and heat pump replacement 
  • Mini Split A/C systems 
  • Electronic Air Cleaners 
  • Ultra Violet Air Purifying Systems 
  • Frank Niesen Company is committed to keeping our clients in Cincinnati cool. 
Regular air conditioner maintenance is one of the best, most cost-effective ways to stay cool in the summer and keep your system running at full capacity.
No job is too big or small, and we deliver 100% customer satisfaction on every project. So whether you need air conditioner maintenance work, repairs, or installation for a single unit or an entire office building, our highly trained and experienced contractors will provide the speedy, high-quality service you can depend on with the Frank Niesen Company.
Call us today for a FREE estimate.

Why Choose Us?

  • Family Owned & Operated Since 1884
  • Fully Insured, Licensed and Bonded
  • References Available
  • Master Plumbers On Hand
  • Great Experience & Knowledge
  • Emergency Service

Associations & Memberships

Associations and Memberships

Business Hours

Mon - Fri
Sat - Sun
Appointment Only
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