Business Profile
RJ's HVAC Limited is a trusted, locally-owned heating and cooling company serving Lockport, IL, and the surrounding communities. We specialize in diagnosing and repairing the most common local HVAC problems, including frequent AC compressor failures and refrigerant leaks that can leave homes uncomfortable during our humid summers. Our team of certified technicians provides prompt, reliable service to restore your system's efficiency and protect your investment. From emergency repairs to preventative maintenance, RJ's HVAC is committed to keeping Lockport residents cool in the summer and warm in the winter with honest advice and quality workmanship.
Frequently Asked Questions
What are the signs my AC compressor is failing, and what should I do?
Common signs in Lockport homes include loud grinding or humming noises from the outdoor unit, warm air blowing from vents, frequent circuit breaker trips, or the system struggling to start. If you notice these, it's best to turn the system off to prevent further damage and call us immediately. Our technicians can diagnose if a repair or replacement is the most cost-effective solution for your specific system.
Why is my AC in Lockport leaking refrigerant, and is it dangerous?
Refrigerant leaks in Lockport are often caused by corrosion, vibrations, or wear on coils and connections over time. While the refrigerant itself is not typically explosive, a leak means your system is working harder, driving up energy bills and risking a complete breakdown. More importantly, it can't properly cool your home. We use specialized tools to locate and seal leaks, then recharge your system to the manufacturer's specifications to restore safe, efficient cooling.
Can regular maintenance prevent these common AC problems in our climate?
Absolutely. Lockport's seasonal shifts and summer strain make biannual maintenance crucial. Our preventative service includes cleaning coils, checking refrigerant levels and pressure, inspecting electrical components, and tightening connections. This proactive care can identify small issues before they lead to a major compressor failure or significant refrigerant leak, extending your system's lifespan and improving its efficiency throughout the year.
Core Services
- HVAC installation or replacement
- HVAC system repair
Business Location & Hours
| Mon: | Open 24 hours |
| Tue: | Open 24 hours |
| Wed: | Open 24 hours |
| Thu: | Open 24 hours |
| Fri: | Open 24 hours |
| Sat: | Open 24 hours |
| Sun: | Open 24 hours |



















