Air Conditioner Service and Repairs
Courtesy Heating and Cooling delivers fast, reliable cooling repair services throughout Southern New Hampshire, including Nashua, Manchester, Merrimack County, Hillsborough County, and Rockingham County. Our certified technicians specialize in central air conditioner repairs, diagnosing refrigerant leaks, compressor issues, capacitor failures, and airflow problems to restore efficient cooling quickly. We service all major makes and models and provide transparent estimates so homeowners and businesses know the cost before work begins.
We offer full-service heat pump services, from routine tune-ups and refrigerant recharge to reversing valve and compressor repairs. Whether you have an air-source heat pump or a ground-source system, Courtesy Heating and Cooling provides skilled technicians for accurate diagnostics, efficient repairs, and system optimization to reduce energy bills and extend equipment life. Emergency heat pump repair is available to keep your property comfortable during unexpected breakdowns.
Our team also handles mini-split (ductless) air conditioner repairs and installations, ideal for room additions, multi-family units, and energy-efficient cooling solutions. We troubleshoot indoor and outdoor unit issues, line-set problems, and control wiring, and we perform seasonal maintenance to prevent losses in performance. In addition, we provide geothermal heat pump service and repair — including loop checks, pump servicing, and control system troubleshooting — for homeowners looking for reliable, low-cost cooling and heating year-round.
Customers in Southern New Hampshire choose Courtesy Heating and Cooling for fast response, licensed technicians, 24/7 emergency service options, and maintenance plans that include filter changes, coil cleaning, and performance checks. Schedule central air conditioner repairs, heat pump service, mini-split repairs, or geothermal heat pump maintenance online or call to get a free estimate and keep your cooling system running safely and efficiently all summer.