Tri-Den LLC

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Claim This BusinessAbout Tri-Den LLC
Tri-Den Heating and Air Conditioning operates as an air conditioning contractor serving Mentor, Ohio, and surrounding communities with a 4.9 rating drawn from 211 customer reviews. The company handles residential and light commercial heating and cooling installations, indoor air quality solutions, and ongoing service and maintenance. Their standard hours run Monday through Friday from 8 AM to 5 PM, with 24/7 emergency availability for after-hours urgent situations. The business is located at 7869 Enterprise Drive in Mentor.
This contractor distinguishes itself through combined expertise spanning over 50 years, with owners Nick Trivisonno and Frank Dengel bringing that extensive experience to every job. They offer the full spectrum of HVAC services including new heating and cooling system installation, indoor air quality improvements, and comprehensive service and maintenance programs. The company maintains around-the-clock emergency response capability, ensuring customers can reach them anytime for urgent heating or cooling issues.
What Customers Say
All eight sampled reviewers award 5 stars, with four specifically mentioning technicians Josh, Nick, Frank, or Shawn by name. Customers praise the team's availability, fair pricing, and clear communication throughout service visits.
Working Hours
| Sunday | Closed |
| Monday | 8 AM–5 PM |
| Tuesday | 8 AM–5 PM |
| WednesdayToday | 8 AM–5 PM |
| Thursday | 8 AM–5 PM |
| Friday | 8 AM–5 PM |
| Saturday | Closed |
Services
Heating & Cooling Installation
New residential and light commercial HVAC system installation, including equipment selection and setup.
Indoor Air Quality
Solutions targeting air purification and ventilation improvements for healthier home environments.
Service & Maintenance
Regular tune-ups, system cleaning, and diagnostic checks to maintain heating and cooling efficiency.
Emergency Repair
24/7 urgent response for heating and cooling system failures outside standard business hours.
Furnace Servicing
Inspection, cleaning, and repair of residential furnace systems, including component replacement.