24-Hour Mechanical Systems Service

Dunbar is proud to stand out in the HVACR industry with an established record of excellence. Less than 1% of HVACR contractors nationwide qualify as Greenstar Energy Solutions Providers, a testament to our commitment to superior service. Our 45+ highly trained technicians cover Ohio and Michigan, ensuring top-quality service. We boast an outstanding safety record, ISO 9001:2015 certification, and a commitment to ongoing education. With a dedicated team available every day, every weekend, and every holiday, Dunbar is your reliable partner for HVACR solutions.

Dunbar's Service Group provides preventive maintenance, repairs and replacement on:

  • HVAC Systems 
  • Commercial Refrigeration Systems
  • Chiller Systems
  • Burner Installation/Repair
  • Emergency Repairs
  • Burners
  • Facility Monitoring
  • Plumbing
  • Water and Gas Service Lines
  • Gas Meters and Regulators
  • Backflow Preventers
  • Sanitary Systems
  • Drain Systems
  • Building Automation Systems

Dunbar Inc.’s Service Group provides preventive maintenance, repairs and replacement on:

  • HVAC Systems 
  • Commercial Refrigeration Systems
  • Chiller Systems
  • Burner Installation/Repair
  • Emergency Repairs
  • Burners
  • Facility Monitoring
  • Plumbing
  • Water and Gas Service Lines
  • Gas Meters and Regulators
  • Backflow Preventers
  • Sanitary Systems
  • Drain Systems
  • Building Automation Systems

Dunbar’s Preventive Maintenance Plans Save Big in the Long Run


Even though most building owners realize it is better to schedule routine HVAC preventive maintenance services, many operate only in reaction to problems. However, the “fix and repair” process is NOT a maintenance strategy and requires MORE cash in the long run.

Having a preventive maintenance agreement in place with Dunbar:

  • Improves occupant health, safety, and productivity
  • Minimizes downtime of your mechanical systems
  • Reduces energy consumption
  • Extends your equipment’s life
  • Enhances your building’s performance and minimize overall operating costs
  • Saves you money by preventing failures during critical times
  • Maximizes your system operating efficiencies by making adjustments during seasonal weather changes
  • Assists in budget planning by identifying needed repairs and planning for required changes
  • Ensures manufacturer’s preventive maintenance service requirements are performed regularly
  • Helps improve company revenues as well as reducing costs.

The Dunbar Service Difference


Our plans also come with a Dunbar Difference: your technician is part of a TEAM of facilities experts who each have a specialty. Whenever a question or new situation arises, your technician not only knows who to call with questions but also has an inside expert for the best answer. While you will enjoy working with one main technician, you have the resources of several trained mechanical systems experts whenever you need them!

dunbar-logo-white

— Toledo, OH

2806 N Reynolds Rd
Toledo, OH 43615
419.537.1900

— Valley View, OH

7777 Exchange St,
Suite 4
Valley View, OH
216.264.8144

— Plymouth, MI

9282 General Dr
Plymouth, MI 48170
734.625.7618

— Columbus, OH

750 Schrock Rd
Columbus, OH 43229
419.537.1900

dunbar-logo-white

— Toledo, OH

2806 N Reynolds Rd
Toledo, OH 43615
419.537.1900

— Valley View, OH

7777 Exchange St,
Suite 4
Valley View, OH
216.264.8144

— Plymouth, MI

9282 General Dr
Plymouth, MI 48170
734.625.7618

— Columbus, OH

750 Schrock Rd
Columbus, OH 43229
419.537.1900