Harmony Heating & Air Conditioning
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Harmony Heating & Air Conditioning has kept Denver comfortable since 2011, when Jaime Rojas founded this family-owned contractor at 5060 S Syracuse St in the Glendale area. The company holds a 4.8-star rating across 48 verified reviews, with NATE-certified technicians who repair and install heating and cooling equipment throughout the Denver metro area including Aurora, Lakewood, and Westminster. All service calls are bonded, insured, and performed by licensed technicians who maintain 24-hour availability for emergencies, a critical capability during Colorado's sub-zero winters and sweltering summer heat waves.
What distinguishes Harmony Heating & Air Conditioning is their willingness to repair older systems rather than automatically recommending full replacement. When one household contacted them about an aging air conditioning unit still using R22 refrigerant, a refrigerant no longer widely available, the technician explained all available options and performed the service rather than insisting on a new system. They also offer indoor air quality solutions including REME HALO air purifiers, air duct cleaning, and thermostat programming services. Every repair includes a written warranty on both parts and labor, and they assist homeowners with manufacturer warranty documentation for insurance claims and equipment registration.
Customer reviews highlight two technicians by name. Santiago handled a complex repair on a system with a cracked heat exchanger that was leaking carbon monoxide, identifying a life-safety hazard other contractors had missed and guiding the family through an equipment replacement while coordinating with their insurance provider. Carter was praised by another reviewer for explaining furnace diagnostics in plain language, staying late to ensure steady heat through a cold weekend, and following up personally to confirm everything remained operational after the service call. Both scenarios reflect the company's approach of transparent communication and follow-through that reviewers consistently mention.
What Customers Say
48 reviews yield a 4.8-star average with a pattern: customers repeatedly mention same-day response times and technicians who explain repair options rather than pushing replacement. Both named technicians (Carter and Santiago) appear in 5-star reviews highlighting diagnostic skill and care. Negative feedback is absent in available sample.
Working Hours
| Sunday | Closed |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| ThursdayToday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
AC Repair & Maintenance
Diagnose cooling problems, refill refrigerants, replace capacitors and compressors, perform seasonal tune-ups to restore performance.
Furnace & Heating Repair
Fix ignition delays, replace flame sensors and heat exchangers, service gas valves, clean burners, restore safe heating operation.
Indoor Air Quality
Install REME HALO air purifiers, assess ventilation needs, recommend filtration upgrades for Denver's allergy seasons and altitude-related air density.
Air Duct Cleaning
Remove accumulated debris, dust, and contaminants from ductwork using mechanical agitation and negative air pressure methods.
Thermostat Services
Install and program smart thermostats, configure zoning, optimize temperature schedules for Denver's variable daily temperature swings.
System Replacement
Remove old equipment, install new furnaces, air conditioners, and heat pumps with manufacturer warranty registration and permitting.
24-Hour Emergency Service
Respond to heating failures, refrigerant leaks, and carbon monoxide alarms around the clock, including holidays and late evenings.