New Hampshire Heating & Cooling Experts
• Same Day Appointments
• No Service Fee With Repairs
• Fast, Friendly & Affordable Service
• Fully Licensed & Insured
• Free Estimates
Stay Comfortable Year-Round with Courtesy Heating and Cooling
Trusted HVAC in Brentwood, Exeter and Southern New Hampshire
Welcome to Courtesy Heating and Cooling, your local heating and cooling experts in Brentwood, New Hampshire. We’re here to help your home or business stay comfortable through every season — hot summers, cold winters, and everything in between.
✅ Heating • Cooling • Repairs • Maintenance • Installation
Is your AC not working? Furnace acting up? Time for a system check? No worries — we’re here to help. At Courtesy Heating and Cooling, we provide fast, honest, and reliable HVAC service you can count on.
3 Great Deals
Choose one of our current offers: a FREE diagnostic with any repair, 15% off any repair, or $50 off maintenance! Must mention offer to the technician at the time of service.
Why Choose Courtesy Heating and Cooling?
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Local & Family-Owned – Proudly serving Brentwood, Exeter and surrounding towns.
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Fast, Friendly Service – On time, every time.
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Fair, Upfront Pricing – No hidden fees or surprises.
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Licensed & Insured – Professional work done right.
Helping Homes and Businesses Across the Seacoast, Southern New Hampshire and the Lakes Region
We serve Exeter, Manchester, Nashua, Portsmouth, Dover, Wolfeboro, and other nearby areas. Whether you need a quick fix, regular maintenance, or a brand-new system, we’re just a phone call away.
We also repair, maintain and install water heaters. See our water heater services.
Our Heating and Cooling Services
Courtesy Heating and Cooling repairs, maintains and installs heating, cooling and hot water equipment for homes across Southern, Seacoast and Lakes Region New Hampshire. Choose a service to learn more.
Heating
Furnace, boiler and heat pump repair, replacement and tune-ups.
Heat Pumps & Mini-Splits
Cold-climate heat pumps, ductless and ducted mini-splits for heating and cooling.
Air Conditioning
Central air repair, new systems and spring tune-ups.
Water Heaters
Tank, tankless and indirect water heaters.
Geothermal
Ground-source heat pump installation, repair and maintenance.
Emergency Service
No heat or no cooling outside office hours? Call our 24/7 emergency service line.
Areas We Serve
We’re based at 22 Peabody Dr in Brentwood and serve towns across Rockingham, Strafford, Belknap, Carroll, Merrimack and Hillsborough counties. Visit a town page for local details, or see all service areas.
Hours and Emergency Service
Office hours: Monday–Friday 7:00 AM–6:00 PM, Saturday–Sunday 10:00 AM–3:00 PM.
24/7 emergency service line: outside office hours, call the same number, (603) 777-7749, for urgent problems like no heat or no cooling.
Get a Free Quote Today!
Let’s make your home more comfortable and energy-efficient. Call now to schedule service or request a free estimate.
Call 603-777-7749
Based in Brentwood, NH