Heating & Cooling Services in Exeter, NH

Your Local Heating and Cooling Company for Exeter

Courtesy Heating and Cooling is based in neighboring Brentwood, a short drive from Exeter. When you call us, you’re calling a local company that works in Exeter homes every season. We handle heating repair and installation, air conditioning, heat pumps and ductless mini-splits, water heaters and geothermal systems for homeowners all over town. That includes the streets around downtown and the river, and the newer neighborhoods farther out.

Because we’re local, we know the range of homes in Exeter. Older capes and colonials near the center often have boilers with baseboard or radiators, original chimneys and additions built over the years. Newer homes are more likely to have forced-air systems, ductwork and central air. Each one needs a different approach, and we take the time to understand your house before recommending anything.

Heating Services in Exeter

Exeter winters are long, and a dependable heating system matters. We service and install oil and gas boilers, natural gas and propane furnaces, and the controls and components that keep them running. If your system is short-cycling, making new noises, leaving rooms uneven or simply getting old, we can diagnose it and explain your options clearly. You can learn more on our heating service and heating installation pages, or read about furnace installation if you’re replacing a forced-air system.

Annual heating maintenance before cold weather arrives is one of the best ways to avoid a mid-winter breakdown. A tune-up gives us a chance to clean components, check safety controls and catch small problems early.

Air Conditioning, Heat Pumps and Mini-Splits

Summers on the Seacoast can be humid, and many older Exeter homes were never built with central air. If you have ductwork, a central air conditioner or ducted heat pump may be a good fit. If you don’t, and many homes with boiler heat don’t, a ductless mini-split can add quiet, efficient cooling room by room without major renovation. Mini-splits are also a popular way to warm a cold addition, bonus room or finished basement.

Cold-climate heat pumps can provide both heating and cooling, and many homeowners use one alongside an existing boiler or furnace. See our heat pump and ductless mini-split installation page for how it works, or our air conditioning installation and AC service pages.

Water Heaters and Geothermal

We also repair and replace water heaters. If you’re running out of hot water, seeing leaks around the tank, or your heater is getting old, we can recommend a replacement that fits your household. For homeowners interested in geothermal, we offer geothermal heating and cooling services, including geothermal installation.

Planning a System Upgrade in an Exeter Home

Many Exeter homeowners call us when an older boiler or furnace starts needing frequent repairs. Replacing it is a good time to rethink how your home is heated and cooled. Depending on your house, the right answer might be a straight replacement with a high-efficiency boiler, a new furnace paired with central air, or a heat pump that adds cooling and gives you a second heat source. We’ll explain the trade-offs in plain language, including installation complexity, operating costs, comfort and how each option fits the way you use your home.

For larger additions or renovations, it pays to plan HVAC early. Sizing the system for the new space, and deciding whether to extend existing ductwork or piping or add a dedicated mini-split, is much easier before walls are closed up. Bring us in at the planning stage and we’ll help you avoid surprises later.

Seasonal Tips for Exeter Homeowners

• Early fall: schedule your heating tune-up before the first cold snap, when demand for service picks up.
• Winter: keep snow and ice clear of outdoor heat pump units and exhaust vents, and check that nothing is blocking radiators or supply registers.
• Spring: change filters and schedule AC or heat pump maintenance before the first humid stretch of summer.
• Summer: keep shrubs and debris at least a couple of feet from outdoor units so they can breathe.

Serving Exeter and Neighboring Towns

From our Brentwood base we regularly serve nearby communities including Stratham, Brentwood, Newmarket, Kingston, Hampton, North Hampton, Epping and Fremont, along with the rest of the towns listed below.

Frequently Asked Questions

Is Courtesy Heating and Cooling close to Exeter?

Yes. We’re based in neighboring Brentwood, NH, and Exeter is one of the core towns in our service area. We serve homeowners throughout town and in surrounding communities.

My older Exeter home has boiler heat and no ducts. Can I still get air conditioning?

Yes. Ductless mini-splits are designed for homes without ductwork. They connect indoor units to an outdoor unit through a small opening in the wall, and many models also provide efficient heat.

Do you work on both oil and gas heating systems?

Yes. We service and install oil and gas boilers as well as natural gas and propane furnaces.

How do I schedule service in Exeter?

Call us at (603) 777-7749 or use the Schedule An Appointment button on this page to book online.

Do you offer free estimates?

Yes. We offer free estimates on new system installations. Call us or book online to set one up.

Schedule Service in Exeter Today

Whether you need a repair, a seasonal tune-up or a new system, your neighbors at Courtesy Heating and Cooling are ready to help. Call (603) 777-7749, book online, or contact us to get started. Check our special offers too.