RJA Heating & Cooling, LLC

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About RJA Heating & Cooling, LLC
RJA Heating & Cooling, LLC is a licensed HVAC contractor based in Fairfield, New Jersey, serving residential and commercial clients across Essex, Bergen, Union, Hudson, and Passaic Counties. With 16 verified reviews generating a 4.4-star average, the company has built a steady reputation in the northern New Jersey market since its establishment. The team operates Monday through Saturday from 6 AM to 7 PM, offering same-day emergency service during extreme weather events. Rocco serves as lead technician and primary point of contact for complex diagnostics and installations, while Dawn manages the office and customer coordination.
What distinguishes RJA Heating & Cooling from regional competitors is their in-house sheet metal fabrication capability, allowing custom ductwork modifications without third-party subcontractors. The company provides indoor air quality solutions including air duct sealing and system zoning for multi-zone temperature control. They partner with major equipment manufacturers for new installations and replacements, backed by extended warranty options. Their financing program enables homeowners to manage unexpected HVAC failures through payment plans rather than deferred maintenance. Commercial HVAC services expand their reach beyond residential properties.
Customer reviews consistently highlight Rocco's responsiveness duringcritical failures. Richard Metallo described calling on a 90-degree day when his 18-year-old system failed, with Rocco arriving the following morning to diagnose a refrigerant leak and install replacement equipment within 48 hours. Paul Sinnenberg noted Rocco remained available for questions throughout a multi-week ductwork replacement project. Kathleen M credited the crew with vacuuming and cleaning after installing a new cooling system, while Sheena Bhatt called Rocco honest and trustworthy for a furnace and AC replacement in her new home.
What Customers Say
Every reviewer who mentioned a technician by name awarded 5 stars. Rocco appears in all five sampled reviews, with reviewers specifically praising his availability, honesty, and same-day responsiveness during heat waves. The office manager Dawn receives consistent positive mention for friendly, organized communication. No negative reviews were sampled.
Working Hours
| SundayToday | Closed |
| Monday | 6 AM–7 PM |
| Tuesday | 6 AM–7 PM |
| Wednesday | 6 AM–7 PM |
| Thursday | 6 AM–7 PM |
| Friday | 6 AM–7 PM |
| Saturday | 6 AM–7 PM |
Services
HVAC Repair & Maintenance
Diagnostic services, refrigerant recharging, and tune-ups for aging heating and cooling systems.
New Installation & Replacement
Complete system installation including furnace, AC, and heat pump replacements with equipment delivery.
Ductwork Fabrication & Sealing
Custom in-house sheet metal fabrication and air duct sealing for replacements and upgrades.
Indoor Air Quality
Air purification solutions, REME HALO systems, and ventilation improvements for healthier homes.
Thermostats & Zoning
Smart thermostat installation and multi-zone system configuration for targeted temperature control.
Preventive Maintenance Agreements
Scheduled service agreements covering annual tune-ups and priority scheduling for subscribers.
Commercial HVAC Services
Installation and repair services for commercial buildings and business properties.
Financing Programs
Payment plan options for unexpected HVAC failures, enabling immediate repair without deferred costs.