New Hampshire Heating & Cooling Experts

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Air Conditioning Installation & Replacement

Air Conditioning Installation in Exeter, NH – Stay Cool with Courtesy Heating and Cooling

 

Need a new air conditioning system for your home or business? Whether you’re replacing an old unit or installing AC for the first time, Courtesy Heating and Cooling provides expert air conditioning installation across Exeter, Portsmouth, Dover, Manchester, Nashua, Wolfeboro, and surrounding New Hampshire towns.

We Make Getting a New AC Easy

Choosing the right system doesn’t have to be confusing. Our friendly team will help you pick the best air conditioner for your space, your needs, and your budget. Then, we’ll install it quickly and correctly — with no mess and no stress.

 

Types of Air Conditioning Systems We Install:

  • ✅ Central Air Conditioning – Perfect for cooling the whole home

  • ✅ Ductless Mini-Splits – Great for rooms without ducts or zoned comfort

  • ✅ Heat Pumps – Energy-efficient option for both heating and cooling

  • ✅ Geothermal – Ultra-Efficient Heating and Cooling using the earths energy. 

  • ✅ High-Efficiency Systems – Save energy and lower monthly bills

We install trusted brands and top-rated equipment — and we stand behind our work 100%.

Who We Are

Courtesy Heating and Cooling is a second generation HVAC/Appliance service company based on family values. We believe our priorities are to provide efficient, responsive, affordable and expert service to our clients and to treat our team like family. Our goal is to ensure you are so satisfied with our service that you just have to tell your friends and family about us! Give us a call today to schedule your maintenance, service or replacement appointment. 

When Is It Time to Replace Your AC?

You might need a new system if your current AC:

  • Is more than 10–15 years old

  • Breaks down often or needs expensive repairs

  • Struggles to keep your home cool

  • Makes loud noises or smells odd

  • Costs too much to run

We’ll inspect your system and give honest advice — even if the best choice is a simple repair.

What to Expect from Our AC Installation:

  • Free, no-pressure estimate

  • Help choosing the right system

  • Expert installation by licensed technicians

  • Clean, careful work — we respect your home

  • Full walkthrough and system test before we leave

We take pride in making your home cooler, safer, and more comfortable.

Financing & Rebates Available

Need help with the cost of a new air conditioner? We can help you find financing options and check for local or federal rebates that may apply to your system.

Schedule Your Free AC Installation Estimate Today

We proudly serve homeowners and businesses in Exeter, Portsmouth, Dover, Wolfeboro, Manchester, Nashua, and nearby towns.

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 Exeter, NH
💬

Some of Our Service Areas

Rockingham County

  • Atkinson

  • Brentwood

  • Candia

  • Chester

  • Danville

  • Deerfield

  • Derry

  • Epping

  • Exeter

  • Fremont

  • Greenland

  • Hampstead

  • Hampton

  • Kingston

  • Londonderry

  • Newmarket

  • Newton

  • North Hampton

  • Northwood

  • Nottingham

  • Plaistow

  • Portsmouth

  • Raymond

  • Rye

  • Salem

  • Sandown

  • Seabrook

  • Stratham

  • Windham

Strafford County

  • Dover

  • Durham

  • Farmington

  • Lee

  • Milton

  • Rochester

  • Somersworth

  • Strafford

Carroll County

  • Alton
  • Wakefield
  • Wolfeboro

Belknap County

  • Alton
  • Belmont
  • Gilford
  • Gilmanton
  • Laconia
  • Meredith
  • New Hampton
  • Sanbornton

Merrimack County

  • Boscawen

  • Bow

  • Concord

  • Epsom

  • Franklin

  • Henniker

  • Hooksett

  • Loudon

  • New London

  • Newbury

  • Northfield

  • Pembroke

  • Pittsfield

Hillsborough County

  • Amherst

  • Bedford

  • Brookline

  • Goffstown

  • Hillsborough

  • Hollis

  • Hudson

  • Litchfield

  • Merrimack

  • Milford

  • Nashua

  • New Boston

  • Pelham

  • Peterborough

Please call if your town is not listed

You Deserve The Best

With over 20 years of experience providing air conditioning design, service and repair services, we have become a trusted name in the industry for providing reliable and efficient services to both residential and commercial customers.

At Courtesy Heating and Cooling, we provide high quality HVAC installation services backed by decades of experience. We take our time to understand your needs and carefully examine your home to design a system that best meets your needs.

At Courtesy we know how to deliver high value, high quality HVAC installations with a sense of urgency. Our goal is to complete our work on a timeline that suits your schedule without cutting any corners. We do this by thoroughly vetting our employees and providing continuing education and on the job training. 

At Courtesy Heating and Cooling, we take pride in our commitment to providing exceptional customer service for the life of your AC system and beyond. Our staff members are friendly, professional, and always willing to go the extra mile to ensure your complete satisfaction. We also offer competitive pricing and upfront quotes for all our services, so you can make an informed decision about your Air Conditioning Installation.

Don’t settle for less than the best when it comes to your HVAC project. From heat load calculation to duct and equipment installation, we will treat your home as we would our own. We guarantee that you will be satisfied with our services and are proud to stand behind our word. Call, email, text or schedule online today!

Air Conditioning Installation

Courtesy Heating and Cooling installs high-efficiency air conditioning systems across Southern New Hampshire, serving Nashua, Manchester, Merrimack County, Hillsborough County, Rockingham County and surrounding towns. Our central air conditioner installation service includes professional load calculations, right-sized equipment selection, expert ductwork inspection and sealed refrigerant lines to ensure peak efficiency, even cooling, and lower utility bills. We handle permits, city inspections, and system start-up so your new central A/C is installed correctly the first time.

We specialize in heat pump installation services for homeowners who want year‑round heating and cooling with superior energy savings. Our certified technicians design and install air-source and ground‑source heat pumps, optimize system controls, and verify refrigerant charge and airflow for reliable performance. We also guide customers through available local and federal rebates, tax credits, and financing options to make heat pump upgrades more affordable.

For room-by-room flexibility, Courtesy Heating and Cooling provides mini-split (ductless) air conditioner installation. Mini-splits are ideal for additions, basement finishing, condos, and spaces without ductwork; we size and place indoor heads for balanced comfort, discreet aesthetics, and quiet operation. We also install geothermal heat pump systems for homeowners seeking the highest long-term efficiency and lower operating costs — including ground loop design, well/loop installation coordination, and full system commissioning.

Customers in Southern New Hampshire choose Courtesy Heating and Cooling for licensed technicians, clear written estimates, manufacturer-backed warranties, and post‑installation support. Schedule a free in‑home estimate or call today to compare central A/C, heat pump, mini‑split, and geothermal heat pump installation options — upgrade to a more comfortable, energy‑efficient home with professional installation you can trust.