When you invest in a new heating or cooling system, you want to be sure it will work smoothly for years to come. That’s why I’m excited to share how our 5 year labor maintenance and 5 years of annual maintenance with all new installations can give you peace of mind. This kind of long-term care helps protect your home comfort system and keeps it running efficiently through every season. Why Long-Term Maintenance Matters for Your Home Systems Heating and cooling systems are c

When the summer heat hits hard, having a reliable air conditioning system is a lifesaver. But if your old AC unit is on its last legs or you’re building a new home, you might be wondering: how much does a new AC unit installation cost? It’s a question that comes up often, and the answer isn’t always straightforward. There are many factors that influence the price, from the size of your home to the type of system you choose. In this post, I’ll walk you through the key points y

Clean air is essential for a healthy home and workplace. Yet, many people overlook the importance of regularly changing air filters, which can lead to poor indoor air quality, higher energy bills, and even health issues. A filter program that includes free shipping and regular reminders can make maintaining your air filters simple and convenient. This blog post explains how such a program works, why it matters, and how it can help you keep your air quality at its best year-ro

When the summer heat hits New England, having a reliable air conditioning system is more than just a luxury - it’s a necessity. I’ve learned that keeping your home comfortable often depends on how well your AC unit is maintained and repaired when needed. If you’ve ever experienced a sudden breakdown or noticed your cooling system isn’t working as efficiently as before, you know how frustrating it can be. Luckily, there are plenty of ac repair service options that can help res

When the summer heat hits New England, especially in New Hampshire's Lakes Region and Southern Maine, a working air conditioner is more than a luxury - it’s a necessity. But what happens when your AC suddenly stops cooling effectively on one of those scorching days? I’ve been there, and it’s frustrating. Luckily, many common AC problems can be diagnosed and fixed with a little know-how and some practical steps. In this post, I’ll walk you through ac cooling troubleshooting ti

When it comes to keeping your home comfortable all year round, finding the right heating and cooling company is essential. Living in New England, especially around the NH Seacoast and Lakes Region, means dealing with a wide range of weather conditions. From chilly winters to warm summers, your HVAC system needs to be reliable and efficient. That’s why I want to share why Key Heating & Cooling stands out as a top choice for local HVAC services Exeter residents can trust. Trust

Why Homeowners and Industry Experts Can't Stop Talking About Quilt Heat Pumps Quilt is the smartest way to heat and cool your home. In the past year, Quilt ductless heat pumps have captured the attention of the industry. Here’s why: TIME named Quilt to its Best Inventions of 2025 list, recognizing how Quilt systems address the energy transition with room-by-room control and industry-leading efficiency. Fast Company named Quilt one of the Most Innovative Companies of 2025 in d

Keeping your home comfortable year-round in New Hampshire’s Lakes Region and Seacoast means staying on top of your heating and cooling systems. One of the best ways to do that is by signing up for a membership plan for the annual maintenance of your home's heating and cooling systems. These plans offer peace of mind, save you money, and help your equipment run efficiently through every season. In this post, I’ll walk you through why annual maintenance matters, what membership

Ductless heating and cooling systems have grown in popularity for their efficiency and flexibility. Yet, many homeowners and businesses hesitate to install them because of their higher upfront cost compared to traditional HVAC systems. Understanding why ductless systems are expensive helps you make an informed decision about whether the investment is worth it for your space. Ductless mini-split indoor unit installed on a bedroom wall What Makes Ductless Systems Different Unli

New Hampshire summers are warming up and humidity is rising. Here's why a Quilt ductless heat pump is the smartest cooling upgrade New Hampshire homeowners can make this season. When you book through Key Heating and Cooling before June 30, 2026, you get $400 off per room on your Quilt installation. New Hampshire summers aren't what they used to be New Hampshire has always had its seasons, and locals have always appreciated the contrast — crisp falls, snowy winters, and summer

If you’ve ever wondered how geothermal heating and cooling systems work, you’re in the right place. I’m here to walk you through the basics in a warm, straightforward way. Geothermal energy might sound complicated, but it’s actually a smart, natural way to keep your home comfortable all year round. Especially for those of us living in New Hampshire’s Lakes Region, the Seacoast, and Southern Maine, geothermal systems can be a game-changer for energy efficiency and cost savings

When it comes to keeping your home comfortable all year round, having a reliable heating and cooling system is essential. I’ve learned that finding a trustworthy HVAC service provider can make all the difference, especially in regions with New England’s unpredictable weather. That’s why I want to share my experience with Key Heating & Cooling, a company that truly stands out for its exceptional HVAC services. Whether you’re dealing with a chilly winter or a hot summer, they’v

Spring and fall bring beautiful changes to New England, but they also bring seasonal allergies that can make life uncomfortable. If you live in New Hampshire or Southern Maine, you know how pollen, mold spores, and dust can invade your home and trigger sneezing, congestion, and itchy eyes. Fortunately, there are indoor air quality products designed to help reduce allergens and make your living space a breath of fresh air. I want to share some practical tips and product ideas

We’re proud to announce that Key Heating & Cooling is now a Quilt Certified Partner. We’re proud to announce th at Key Heating & Cooling is now a Quilt Certified Partner, bringing the future of home comfort to the NH Seacoast, Lakes Region and York County Maine! With Quilt, homeowners can enjoy all-in-one heating and cooling that’s beautiful, efficient, and built for the way you live. What is Quilt? In an industry where performance and aesthetics often compete, Quilt redefine

When the cold New England winters (or a early Spring Snowfall!!) roll in, having a reliable furnace is more than just a convenience - it’s a necessity. We've learned over the years that keeping your furnace in top shape is key to staying warm and comfortable all season long. That’s why we want to share why a furnace upkeep schedule is so important and how it can save you time, money, and stress. Why a Furnace Upkeep Schedule Matters A furnace is a complex piece of equipment t

The rebate programs for both Efficiency Maine and NHSaves are now live! Our Rebates page on our website has been updated and filled with helpful information and links. We encourage you to check it out! New for 2026 for Maine residents is a very substantial incentive for single wide mobile home owners - they can see over $12,000 in rebates for central heat pump upgrades. NHSaves has updated all the qualifying heat pumps to only offer rebates for new equipmet using the refri

We are proud to announce Our 5 Star Experience (Our Promise To You!) Call today to ensure we give you Our 5 Star Experience! Key Heating & Cooling has been in business for over 33 years and that is by no accident! We have a nearly perfect rating on Google and take pride in each and every review we earn! We have worked hard over the years to ensure our employees are taken care of so in turn they can take care of you and home comfort. We provide a good work environment, regul

Curios about how Heat Pump Hot Waters Heaters work? A heat pump water heater (HPWH) uses electricity to move heat from surrounding air into a storage tank , making it 2-3 times more efficient than standard electric models by transferring heat rather than generating it, significantly cutting energy costs and dehumidifying the space, often in a hybrid system with backup electric elements for high demand. These units work like a reverse refrigerator, pulling ambient heat, and ar

Are you aware that there are two kinds of heat pump technologies? The primary types are air-to-air and ground-source (or geothermal)...

At Key Heating & Cooling, we take pride in staying at the forefront of industry advancements to deliver the most efficient and...