- HEP Heat and Air
- Refrigerant Recharge

Refrigerant Recharge
Refrigerant Recharge | Heating and Air Conditioning | Farragut
When summer highs or winter chills push your comfort system to the limit, HEP is ready to bring back the cool—or the cozy—with fast, precision refrigerant recharge service in Farragut. Our certified technicians arrive in fully stocked vans, locate leaks, balance pressures, and top off your system with the correct, eco-friendly blend so you can feel the difference before we’re even out of the driveway. No guesswork, no hidden fees—just clear communication, upfront pricing, and a workmanship guarantee that keeps your home protected all year long.
Homeowners choose HEP because we treat every refrigerant recharge as a complete wellness check for your heating and air conditioning. From inspecting coils and compressors to optimizing airflow and thermostat settings, we fine-tune the entire system for maximum efficiency, lower utility bills, and longer equipment life. Schedule today, and discover why Farragut counts on HEP to keep comfort flowing, season after season.
FAQs
How do I know my air conditioner needs a refrigerant recharge in Farragut?
Common warning signs include warm air blowing from the vents, longer runtimes without reaching the thermostat set-point, ice buildup on the outdoor or indoor coil, and a hissing or bubbling noise near the refrigerant lines. Because Farragut experiences muggy summers, even a small loss of refrigerant can quickly affect comfort and energy bills. If you notice any of these symptoms, shut the system off to prevent compressor damage and schedule a professional inspection.
Why should I hire a licensed HVAC technician for refrigerant service instead of attempting a DIY recharge?
Refrigerants are regulated by the EPA under Section 608, which requires proper certification to purchase, handle, or dispose of them. A licensed technician in Farragut has the tools to measure superheat and sub-cooling, locate and repair leaks, recover and recycle existing refrigerant, and charge the system to factory specifications. Improper DIY charging can lead to over-pressurization, compressor failure, higher operating costs, and environmental fines for venting refrigerant.
What kinds of refrigerant do you use, and are they environmentally friendly?
Most modern systems in Farragut use R-410A, an ozone-friendly replacement for the phased-out R-22 (Freon). If you own an older R-22 unit, we can still service it, but the refrigerant is now only available in reclaimed form and is more expensive. When it’s time to replace the unit, we’ll recommend EPA-approved alternatives such as R-454B or R-32, which have lower global-warming potential and meet current federal guidelines.
Can you simply “top off” my refrigerant, or do you perform a leak test first?
Industry best practice—and EPA law—requires that we locate and repair significant leaks before adding new refrigerant. Simply topping off a system wastes refrigerant, raises operating costs, and harms the environment. During a service call we perform a visual inspection, electronic leak detection, and, if needed, a nitrogen pressure test. After repairing any leaks, we evacuate the system to remove moisture and then recharge it to the exact factory charge specified on the data plate.
How long does a refrigerant recharge take and what does it typically cost in Farragut?
A straightforward recharge with no major leak repairs averages 1–2 hours. Costs vary with refrigerant type and the amount required. As of 2024, R-410A recharges typically range from $180 to $450, while R-22 can exceed $600 due to limited supply. Leak detection and repair, if necessary, can add $100–$600 depending on the severity and accessibility of the leak. We provide an upfront, written estimate before any work begins.
What can I do to prevent future refrigerant leaks and keep my HVAC system efficient?
Schedule bi-annual maintenance so a technician can check pressures, inspect the coil for corrosion, tighten flare fittings, and clean the condensate drain—corrosive buildup is a leading cause of leaks. Replace air filters every 1–3 months to maintain proper airflow and prevent coil freezing. Keep the outdoor unit clear of debris and landscaping, and consider installing a surge protector; voltage spikes can damage copper tubing and seals. If your system is over 10–12 years old, budgeting for a high-efficiency replacement can be more cost-effective than repeated leak repairs.