24-Hour Mechanical Systems Service

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24-Hour Mechanical Systems Service

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  • Established record of excellence – less than 1% of HVACR contractors nationwide qualify as Greenstar Energy Solutions Providers
  • 45+ highly trained technicians covering Ohio and Michigan
  • Outstanding safety record
  • Continuing education program
  • ISO 9001:2015 Certified
  • A team approach for the highest quality service and technical assistance

  • On assignment and on-call
    Every weekend
    Every holiday

Call Dunbar’s Service Group ANYTIME at
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24-Hour Mechanical Systems Service

Certified Technicians

Fully-Equipped Service Vans

Hour Response Time

Hr. Service

Dunbar Inc.’s Service Group provides

preventive maintenance, repairs and replacement on:

HVAC Systems 
Commercial Refrigeration Systems
 Chiller Systems
Burner Installation/Repair
Emergency Repairs
Facility Monitoring

Water and Gas Service Lines
Gas Meters and Regulators
Backflow Preventers
Sanitary Systems
Drain Systems
Building Automation Systems

Mechanical, electrical and plumbing systems account for 80% of your facility maintenance costs.

Dunbar Inc.’s preventive maintenance plans reduce these costs and provide peace of mind.

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’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.

Preventive maintenance service calls are scheduled per your agreement on a monthly, quarterly, semi-annual, or annual basis — or any time in between. During these preventive maintenance service visits, Dunbar’s qualified technician inspect and evaluate your heating and cooling equipment, make needed adjustments, and identify essential repairs. These visits may also include:

  • Filter changes
  • Belt tightening and/or changes
  • Condenser coil cleaning
  • Motor bearing lubrication
  • Compressor oil level checking and topping off
  • Refrigerant charge measurement
  • Checking for leaks
  • Condensate pump checking
  • Condensate pan and drain cleaning

Quality means doing it right when no one is looking.


We use a flexible approach, tailored to customer needs.

Interested in Dunbar for your service needs?