Expert ac repair in Derry, NH. NATE-certified technicians, quality equipment, and results you can count on.
KIC Refrigeration delivers expert air conditioning repair in Derry, NH, diagnosing compressor failures, refrigerant leaks, frozen evaporator coils, and electrical faults using superheat, subcooling, and amp draw measurements. Our EPA Section 608 certified technicians restore rated SEER output through manufacturer-guided repair procedures across all major AC brands.
Derry homeowners and businesses count on reliable ac repair to maintain comfort and protect indoor air quality. Serving a town of 34,156 across New Hampshire, KIC Refrigeration brings the experience and crew depth to handle ac repair projects of any scale. We begin every job with an honest evaluation and a clear, written estimate.
Our ac repair technicians in Derry, NH are NATE-certified, EPA 608 licensed, and equipped with advanced diagnostic tools. From the initial inspection through final commissioning, we maintain open communication and hold ourselves to the highest standards. That is how KIC Refrigeration has earned the trust of homeowners across New Hampshire.
A clear, step-by-step approach to every ac repair project we take on.
Our Derry technician listens to your description of the problem, inspects the thermostat settings and wiring, checks the electrical disconnect and breaker, and performs a visual inspection of the outdoor condenser and indoor air handler for obvious issues like a frozen coil, tripped safety switch, or burned wiring.
KIC Refrigeration diagnoses AC failures in Derry, NH with precision electrical and refrigerant testing. We check capacitors within 6 percent of rated microfarads, measure contactor coil resistance, verify compressor winding resistance for shorts and opens, and test the refrigerant circuit — comparing suction pressure, discharge pressure, subcooling, and superheat to the manufacturer target values for the current outdoor ambient temperature.
We replace the failed component — capacitor, contactor, fan motor, compressor, or metering device — using parts rated for your system. For refrigerant leaks, we locate the leak, repair or replace the leaking component, evacuate, and recharge the system by weight.
Our Derry technician verifies the repair by running the AC through a full cooling cycle. We measure supply and return air temperatures at the air handler to confirm a 16 to 22 degree split, check that suction pressure produces 35 to 45 degree evaporator saturation temperature, and verify the system cycles cleanly on and off.
Common questions about ac repair costs, timelines, and what to expect.
AC repair in Derry typically costs $150 to $500 for common component failures including run capacitors ($150 to $250), contactors ($150 to $350), condenser fan motors ($250 to $500), and blower motors ($300 to $600). Compressor replacement is the most expensive repair at $1,500 to $3,500 depending on unit tonnage and whether the system uses R-410A or older R-22 refrigerant. Evaporator coil replacement runs $800 to $2,500 including the refrigerant recovery and recharge. KIC Refrigeration provides a detailed written estimate with itemized parts and labor costs before beginning any AC repair at your Derry property so there are no surprises on the invoice.
AC refrigerant recharge in Derry costs $200 to $500 for R-410A systems at roughly $50 to $80 per pound, and $400 to $1,200 for older R-22 systems at $80 to $150 per pound due to the phaseout-driven supply shortage. However, simply adding refrigerant without finding the leak is a temporary and wasteful fix — the charge will leak out again in weeks or months and you will be back in the same situation. KIC Refrigeration always locates the leak first using electronic leak detectors and UV dye, repairs the leaking component, evacuates the system to remove moisture and air, and recharges by weight to the manufacturer specification. This approach fixes the problem permanently.
An AC that repeatedly trips the circuit breaker is a safety issue that should not be ignored or reset repeatedly. The most common causes are a shorted compressor winding drawing excessive amperage, a failing run capacitor that cannot provide the boost needed for compressor startup, a locked rotor condition from a mechanically seized compressor, a ground fault from damaged wiring or a grounded compressor motor, or an undersized breaker that cannot handle the inrush current. Each reset on a breaker weakens it over time. KIC Refrigeration performs thorough electrical diagnostics at your Derry property — including megohm resistance testing on compressor windings and amperage measurements — to identify the root cause and repair it safely.
Most AC repairs in Derry are completed in 1 to 2 hours during a single service visit. Capacitor and contactor replacements are quick fixes that take 15 to 30 minutes of hands-on time. Fan motor and blower motor replacements take 1 to 2 hours including wiring and testing. Compressor replacement is the most time-intensive repair at 3 to 6 hours because it requires refrigerant recovery with an EPA-certified machine, compressor removal, new compressor installation, nitrogen-purged brazing, pressure testing at 300 PSI, evacuation to below 500 microns, and recharging by weight. KIC Refrigeration arrives at your Derry home with a fully stocked truck to complete most repairs in a single visit.
Real feedback from customers across the country about the quality of our work.
"Called for an emergency AC repair on a Friday evening fully expecting to wait until Monday. They came out that same night. Cannot say enough good things."
"KIC Refrigeration repaired our heat pump when two other companies said it needed full replacement. Saved us thousands. Still running great six months later."
"Called about a weird smell from the furnace. They came out, found a cracked heat exchanger, and explained the safety concern clearly. Grateful they caught it."