Reliable residential and commercial mechanical, plumbing, electrical, heating and cooling, indoor air quality, and appliance repair services in Lansing, Michigan.
Home Heating and Cooling Services Schedule Appointment About Contact Us

Our Services

Call us for residential and commercial new construction,
preventive maintenance, repair, replacement & retrofitting.

A-OK Mechanical is licensed to install and service boilers, heating systems, air conditioning, plumbing, electrical, mechanical, commercial refrigeration, and air balancers for residential and commercial use. A-OK Mechanical is also City Certified for Rentals.

Some of our most popular work includes:

  • Appliance Repair
  • Furnace Replacements
  • Heating and Cooling Systems
  • Geothermal Heating and Cooling Systems
  • Plumbing Upgrades and Installations
  • Electrical Upgrades and Installations
  • Boiler Maintenance and Installations
  • Water Balancing (certified)
  • Air Balancing (certified)
  • Custom Duct Fabrication
  • HVAC and HVAC Systems
  • Indoor Air Quality
  • Heat Pumps
  • Pipe and Drain Cleaning
  • Backflow Prevention Testing
  • Commercial Refrigeration

Ask about our Yearly Service Agreements, Extended Warranties, and Energy Savings Agreements (ESA). Each offers additional peace-of-mind and added comfort.

Parts and Supplies

Call us for all your parts and supplies.

Special Offers

Visit our special offers page for money saving deals.

Our Satisfaction Guarantee

1 year labor and manufactures warrantee on parts.

Major Brands Installed

Ruud, Rheem, GE, American Standard, TMC Pipe, Honeywell, Aprilaire, Weil-McLain, Square D, A.O. Smith

Manufacturer Certifications

Ruud, Rheem, TMC Pipe, Honeywell, Tappan, York


Small Business Association (SBA), Air Conditioning Contractors of America (ACCA), ABEEC, Building Trades Association, NFIB

Recent Projects

Cheeseburger In Paradise / Lansing, Michigan
Submarina / Lansing, Michigan


Scheduling an appointment is
the first step in making a more
comfortable home or business.
The most reliable service
at mid-Michigan's best rates.
Our whole house comfort and
energy savings checkup will help
you better understand your home.