Key Heating & Air Conditioning: Exeter NH's Trusted HVAC Partner

For over three decades, Key Heating & Air Conditioning in Exeter, NH has been the go-to choice for heating, cooling, and water heater services across southern New Hampshire. This family-owned company understands New England's climate—from humid summers to frigid winters—and how it affects homes in Exeter and beyond. They offer 24/7 emergency service, so help is always available when a furnace quits on a cold night or an AC fails during a heatwave. Their team of factory-trained technicians brings more than 200 years of combined experience, focusing on residential needs to keep families comfortable year-round.

Business Overview

Key Heating & Air Conditioning operates around the clock, every day of the year. Whether it's a routine maintenance check or an urgent repair, their technicians are ready to assist. The company employs seasoned professionals who specialize in both traditional and modern HVAC systems. They work primarily with homeowners, ensuring houses in Exeter NH and surrounding towns stay efficient and cozy. With a deep knowledge of local housing styles—from older New England colonials to newer builds—they tailor solutions to fit each home's unique needs.

Key Services

Key Heating & Air Conditioning provides a full range of HVAC and water heater services. Homeowners rely on them for:

• HVAC Installation or Replacement: Putting in new heating and cooling systems, including energy-efficient models that save on utility bills.
• HVAC System Repair: Fixing furnaces, air conditioners, and heat pumps quickly to restore comfort.
• HVAC System Maintenance: Regular tune-ups to prevent breakdowns and extend system life.
• Water Heater Installation & Repair: Installing new water heaters or repairing existing ones, ensuring reliable hot water for showers and laundry.

They also handle specialized systems like geothermal and ductless heat pumps, which are great for older homes without ductwork or for homeowners looking to reduce energy use.

Areas Served

Key Heating & Air Conditioning serves a wide area of southern New Hampshire, including Nashua, Concord, Derry, Dover, Rochester, Salem, and Portsmouth. They also cover towns like Durham, Hampton, Exeter NH, Windham, and many more—over 60 communities in total. Their technicians know the ins and outs of local buildings, from coastal homes near the Seacoast to properties in the Lakes Region. This local expertise means they can recommend the right equipment for New Hampshire's varying climates and housing types.

Company History

Founded in 1990 by Jon, Key Heating & Air Conditioning started as a small family operation. Jon had previously worked in plumbing supply companies in Newburyport and Portsmouth, giving him insight into the industry. Over the past 30+ years, the company has grown steadily, earning awards and a strong reputation. They've expanded their service area to include the NH Seacoast, North Shore of MA, Maine Seacoast, and Lakes Region. A unique feature is their in-house training facility, where technicians stay updated on the latest technology. Many team members have been with the company for over 18 years, showing stability and commitment.

Leadership

Owner Jon brings hands-on experience from his early days in the supply side of the business. He built Key Heating & Air Conditioning on principles of fair pricing and excellent workmanship. Based in Exeter NH, Jon ensures the company stays involved in the community, understanding the needs of local homeowners. He keeps pace with industry changes, adopting advanced systems like geothermal heat pumps. Under his leadership, the company focuses on building long-term relationships rather than just one-time jobs.

Specialties & Highlights

What makes Key Heating & Air Conditioning stand out?

• Geothermal and Ductless Expertise: They specialize in modern, efficient systems that many competitors don't handle as often.
• Free In-Home Estimates & Energy Assessments: No-cost consultations to help homeowners make informed decisions.
• Maintenance Membership Program: A service plan that includes priority scheduling and regular check-ups to keep systems running smoothly.
• Factory-Trained Technicians: With over 200 years of combined experience, the team is skilled in multiple brands like York, Mitsubishi, Carrier, and Lennox.
• 24/7 Emergency Service: Always available, even on weekends and holidays, for urgent repairs.

Why Locals Choose Key Heating & Air Conditioning

Homeowners in Exeter NH and across southern New Hampshire pick Key Heating & Air Conditioning for their reliability and deep local roots. They've been around since 1990, giving them a long-standing presence that builds trust. Their factory-trained technicians provide quality work without overcharging. The company adapts to New England's weather challenges, offering solutions that fit both historic homes and new constructions. Whether it's a routine maintenance call or an emergency fix, Key Heating & Air Conditioning delivers consistent, friendly service that keeps customers coming back.