Air Conditioning Repair
Get your air conditioning working again — fast.
What Sets Our Repair Diagnosis Apart
Your air conditioner has stopped cooling, or it’s running but not keeping up on hot Tennessee days. Maybe there’s a strange noise, a refrigerant leak, or the system just won’t turn on. When your AC fails, you need someone who can diagnose the problem quickly and fix it right the first time. That’s what we do.
Our team brings 50+ years of combined experience responding to air conditioning emergencies across Middle Tennessee. We arrive prepared to test, diagnose, and repair most AC problems on the same day. Our certified technicians understand the full scope of what can go wrong — from refrigerant leaks and compressor failure to control board issues and airflow restrictions — and we carry the parts and expertise to handle them.
Why Choose Us
Many HVAC shops start replacing parts until something works. We perform systematic diagnostics: pressure testing, electrical resistance checks, airflow measurement, and refrigerant analysis. We identify the root cause, not just the symptom. This protects your wallet and prevents the same problem from returning.
Our technicians follow a structured diagnostic checklist on every repair, regardless of how "obvious" the problem seems. This discipline catches issues that would go unnoticed in a hurried service call. Your repair is documented with pressure readings, electrical measurements, and efficiency data.
We hold a Tennessee Mechanical (HVAC) and Refrigeration Contractor License, maintain full bonding, and carry a BBB A- rating. If a repair goes wrong, you have recourse. We stand behind our work on every repair, because we’re confident in our diagnosis and repair quality.
Refrigerant leaks are among the most common AC failures. Only EPA 608-certified technicians can legally capture, test, and charge refrigerant. Our certification means we handle your system’s coolant safely, legally, and to the exact specifications the manufacturer requires.
An aging AC system that needs a costly compressor replacement when the unit is already 12+ years old may be a candidate for replacement instead. We tell you honestly what repair costs versus what a new system would cost, with financing available, so you make the decision with full information.
AC failures don’t respect business hours, especially when it’s 95°F outside. We offer same-day service on many repairs and emergency response for urgent situations. Reach out and we’ll either come out that day or get you on the next available schedule, with details on how to stay cool in the meantime.
Request Your AC Repair Service
Is your air conditioning not cooling, running constantly, or making unusual sounds? Describe what you’re experiencing, and we’ll schedule a diagnostic visit. We’ll test your system, identify the problem, explain your repair options, and provide an upfront estimate before we start any work.
Or explore related cooling options:
Our Process
When you call with a cooling problem, we ask specific questions: "When did it stop working?" "Did you hear any sounds before it failed?" "Is the outdoor unit running?" "Does the thermostat have power?" These details help us understand what’s happening and whether a repair needs to happen today or can wait. We schedule a service appointment and, if it’s an emergency situation (extreme heat, no cooling during summer), we prioritize same-day service.
We also give you initial guidance on keeping cool in the meantime: run fans, close drapes to block sun, and avoid using the oven. These simple steps help you stay comfortable while you wait for repair.
Our technician arrives with diagnostic tools and parts to handle most common repairs. First, we visually inspect the indoor and outdoor units for obvious problems: loose connections, obvious leaks, or physical damage. Then we perform systematic testing: measure voltage and current draws on electrical circuits, test the thermostat, check refrigerant pressures on the high and low sides of the system, and measure temperature drops across the evaporator and condenser coils.
We also measure airflow using a balometer to verify your system is delivering the volume of air it should. We take photos of pressure gauges and document everything so you have a clear record of what we found.
Once testing is complete, we explain exactly what we found and why your system failed. We discuss repair options, timeline, and cost. For example: "Your refrigerant is low due to a small leak. Repair option 1: find and patch the leak, then recharge the refrigerant — this costs $X and is a permanent fix. Repair option 2: add refrigerant without repairing the leak — this is cheaper upfront but the leak will return in a few months."
For an aging system with major failures (compressor, multiple leaks), we also discuss replacement as an option: what a new system would cost, financing available, and long-term energy savings.
Once you approve the estimate, we perform the repair. This might involve replacing a failed contactor, sealing a refrigerant leak and recharging, replacing a compressor, cleaning blocked ducts, or repairing electrical connections. After the repair, we run your system through a full test cycle to confirm the problem is resolved and the system operates at design specifications.
We verify cooling capacity, pressure readings, electrical draw, and airflow. We cycle through all modes (cooling, fan-only, auto) and confirm your thermostat controls temperature accurately.
Before we leave, we provide you with a detailed invoice and guidance on preventing future problems. We explain any maintenance steps you can take (like changing filters regularly, keeping the outdoor unit clean, and scheduling annual tune-ups). We also recommend our annual AC maintenance plan to catch minor issues before they become failures.
Our goal isn’t just to fix today’s problem — it’s to help you avoid the next one.
Prevent Future AC Breakdowns
The best repair is the one you never need. Annual AC maintenance catches small problems before they become expensive failures. A spring tune-up before cooling season keeps your system running efficiently and catches issues early.
Our maintenance plans make staying on schedule easy — and they offer repair savings if issues ever do arise.
Getting more years out of your investment
Prevention of unexpected breakdowns during peak heating and cooling seasons
A clear, documented record of system condition that informs smart repair and replacement decisions
Improved system efficiency and lower monthly energy bills
Identify any conditions that could pose a hazard to your home or family
Measure how well your system is actually operating under current conditions
Honest, documented assessment of the current state of your equipment
Available to qualifying homeowners through the TVA program
Catch small problems before they become expensive repairs or emergency breakdowns
Financing Your AC Repair
Major AC repairs like compressor replacement can be expensive, but financing options shouldn’t force you to wait in the heat. We work with Wells Fargo, TVA Financing, and Synchrony to offer flexible terms that fit repair costs into your budget.
There are no gimmicks and no pressure to finance. We discuss financing before you commit, so you can make the best decision for your home.
Straightforward financing through Wells Fargo, with a simple online application.
Contact Us to ApplyAvailable through participating utilities — convenient payments made right on your utility bill.
Contact Us to Check EligibilityFlexible financing through Synchrony to fit quality equipment into your budget.
Contact Us to ApplyReal Savings for Tennessee Homeowners
As a TVA EnergyRight Quality Contractor Network Member, Reliable Comfort Services Inc. can help Middle Tennessee homeowners access real money back through the TVA EnergyRight rebate program. These rebates represent a genuine opportunity to offset the cost of upgrading your system — or maintaining what you have.
Rebates toward high-efficiency HVAC system replacements
Incentives for upgrades that boost overall system efficiency
Rebates for replacing aging or leaking ductwork
Available to qualifying homeowners on annual maintenance
Ask us how to take advantage of what’s available in your area when you schedule service.
Protection You Can Count On
We stand behind our work and the equipment we install. Every new residential install can add an optional labor warranty of up to 10 years through a third-party program, and our LG Pro Dealer status includes a 12-year parts warranty on LG ductless systems — among the strongest coverage available. That’s how confident we are in the quality of our work.
Parts and major components are covered up to 10 years when the equipment is registered. We handle registration and keep your documentation. Coverage varies by equipment.
Available as an option on any residential unit we install, through a third-party program. If selected, it covers repair labor for up to 10 years — you choose whether to add it.
Included on LG ductless installations through our LG Pro Dealer status — one of the strongest coverage packages available. Applies to LG ductless equipment only.
Available on qualifying, select equipment only — if a major component such as the compressor or coil fails within the coverage period, the unit is replaced rather than repaired.
Customer Reviews
We provide AC repair service throughout the broader Middle Tennessee region. Contact us to confirm repair availability in your area — we’re always glad to help a neighbor get their cooling back.
AC Repair Service Areas
We respond to AC emergencies and repair requests throughout Middle Tennessee. Across the region we offer same-day service when scheduling allows and emergency cooling restoration for homes that need it.
Answering Your Questions
If your system is under 8 years old and the repair cost is less than 50% of a new system’s price, repair usually makes sense. For systems over 12 years old with major failures (compressor, multiple leaks), replacement may be smarter long-term. We’ll give you a clear comparison during your estimate.
Repair cost depends on the specific failure and the parts involved — a simple electrical fix is far less involved than a compressor replacement. We always provide a written estimate before any work begins so you know the exact cost.
Simple repairs (capacitor, contactor) take 1–2 hours. Moderate repairs (refrigerant recharge after leak repair) take 2–4 hours. Major repairs (compressor) may take most of a day. We discuss the timeline during our estimate and let you know what to expect.
Running an AC low on refrigerant damages the compressor. If we diagnose a leak, we recommend stopping use until we repair it. Short-term, use fans and open windows to stay cool. Long-term, a refrigerant leak requires repair — adding more refrigerant without fixing the leak is temporary.
We repair all major brands: LG, Carrier, Trane, Ruud, Goodman, Tempstar, Mitsubishi Electric, and others. We source original manufacturer parts when possible and use approved equivalent components when necessary. Brand never affects our diagnostic process — we test and repair all systems the same way.
A quiet hum is normal. Hissing, grinding, banging, or squealing means something is wrong. Hissing signals a refrigerant leak. Grinding indicates compressor bearing wear. Squealing usually means a fan blade issue or belt wear. Don’t ignore unusual sounds — they tell you when repair is needed.
Several causes: low refrigerant (leak), blocked evaporator coil, restricted ductwork, or an undersized system for your home’s cooling load. A constantly running AC also signals high electrical draw and rising energy bills. We diagnose the cause and fix it, which saves money immediately.
No. Only EPA 608-certified technicians can legally handle refrigerant in the U.S. Improper charging damages your compressor and voids your warranty. Always call a licensed technician for refrigerant work. It’s a small cost compared to compressor replacement.
Call us immediately for emergency service. In the meantime: run fans on high, close interior doors to concentrate cool air in occupied rooms, use window air conditioning units if you have them, and stay hydrated. Don’t run your AC if you suspect a refrigerant leak (hissing sound or frost on coil). We’ll get you cooled down as fast as possible.
Watch for: AC won’t turn on or keeps shutting off, weak airflow or only partial cooling, strange noises (grinding, squealing, banging), high humidity indoors even when AC runs, energy bills spiking with no explanation, or hissing sounds and frost on coils indicating refrigerant leaks.
Most filters should be changed every 1–3 months depending on the filter type, your home’s dust level, and whether you have pets. A dirty filter restricts airflow and makes your AC work harder. We check your filter during every service call and recommend the right replacement schedule for your home.
A frozen evaporator coil usually means restricted airflow (dirty filter, blocked ducts), low refrigerant due to a leak, or a stuck expansion valve. Turn off your AC to let the coil thaw, then call us for diagnosis. Running a frozen AC can damage the compressor.
Additional Services
Keep your cooling system and overall home comfort at peak performance.
Prevent breakdowns and extend system life with annual spring and fall maintenance.
Explore AC MaintenanceIf repair isn’t cost-effective, explore new high-efficiency cooling with modern equipment and financing.
Explore AC InstallationNeed both cooling and heating? Our heat pump experts handle repairs and seasonal maintenance.
Explore Heat Pump RepairOnce your AC is running, improve air quality with filtration, UV purification, and humidity control.
Explore Indoor Air QualityComplete HVAC repair services including furnace diagnosis, repair, and maintenance for year-round comfort.
Explore Furnace Repair
Your Air Conditioning Repair Experts
When your AC fails, you need a company that diagnoses accurately, repairs quickly, and stands behind the work. Our crews train in-house to one consistent standard and bring years of hands-on field experience to air conditioning emergencies across Middle Tennessee. We arrive prepared, we test systematically, and we explain what we find before we start any work.
Our technicians are licensed, EPA 608-certified for refrigerant work, and trained on all major brands. We offer same-day service on most repairs and emergency response when you need us most. And we’re honest: if your system is beyond cost-effective repair, we’ll tell you and help you understand your replacement options.
Join our maintenance plan to prevent future breakdowns and explore financing options if you’re considering a new system.