Heating Service and Repairs

 

Courtesy Heating and Cooling provides fast, reliable heating repair services across Southern New Hampshire, including Nashua, Manchester, Merrimack County, Hillsborough County and Rockingham County. Our certified technicians specialize in oil and gas boiler repairs, ensuring safe, efficient operation for older and high-efficiency systems alike. Whether your boiler is leaking, short-cycling, failing to heat, or showing error codes, we diagnose problems quickly and perform durable repairs to restore consistent warmth to your home or business.

We also offer comprehensive natural gas and liquid propane furnace service and repair. From routine tune-ups and filter changes to complex component replacement and emergency breakdown repairs, Courtesy Heating and Cooling keeps furnaces running safely and efficiently throughout the cold months. Regular furnace maintenance can prevent costly failures, improve energy efficiency, extend equipment life, and reduce monthly heating bills — benefits we emphasize in every service visit.

Customers in Southern New Hampshire choose Courtesy Heating and Cooling for transparent pricing, same-day service options, 24/7 emergency response, and thorough safety inspections that include combustion analysis, CO testing, and venting checks. Our technicians are fully licensed, trained on the latest manufacturer specifications, and equipped to work on both residential and commercial systems. We also offer preventative maintenance plans and free estimates to help you budget for repairs and upgrades.

For dependable oil and gas boiler repairs or natural gas and liquid propane furnace service and repair in Southern New Hampshire, contact Courtesy Heating and Cooling today. Schedule a service online or call to set up an inspection, get a repair estimate, or enroll in a maintenance plan — keep your heating system safe, efficient, and ready for winter.