Best Heating & Air Conditioning / HVAC In Derry

“Hatfield Brothers replaced my furnace and recently replaced my water pressure tank. They are honest, reliable, and do an excellent job.“

“Scott was amazing to work with. He installed the HVAC at our home and is always available to answer any questions. One time he helped us over the phone and guided us so we could fix the issue and he didnt have to create a service call for something we could do ourself, that too over a weekend. Its hard to find such people in business and great customer service. Highly recommend !!“

“I have used Mike for at least 8 years. Boiler, Furnace, Bathroom Plumbing, Pool Heater install, etc. Top notch every time“

“We first called on Cal’s, a few years ago, when our AC was only blowing hot air. I was expecting a huge cost to repair. Cal’s promptly arrived and quickly determined is was a blown capacitor. In and out for about $100 when I was anticipating several hundred. Fast forward to last Thursday. We had decided to upgrade our AC to a three zone mini split, and a new more efficient condenser for the high velocity system we use for the second floor. In our minds, there was only ONE company to call. Cal’s came out with less than a two week lead time to get on their schedule. They performed the work in less than 5 hours. Right now we are sitting in our house, nice and cool, while it’s 93 degrees outside. One of our dogs was so cool, her nose was running! We have found, through our experience, that Cal’s is a very trustworthy, honest, prompt company with reasonable prices and expert service and installation.“

“Jason was professional and thorough with the work at my house. I would absolutely recommend Conerstone for clean quality work. I had 21 vents cleaned.“

“They came called head of time and arrived on time and fixed my faucet in the utility room that was leaking, cleaned up all the mess, then went outside and installed a new faucet outside.they asked if there was anything else I would need their services..I would recommend them if anyone needs plumbing done..Services: Faucet repair“

“Thank you to Derry Plumbing & Heating for there fast response and excellent work! Not only was their work top notch, but they were kind and respectful. Tested everything before they left and it was working in excellent condition. Fairly priced, quick service and friendly…. I couldn’t ask for more!“

“I am very grateful for the service and plumbing work I received from Jason . Very professional and an excellent job I will use Daigle Plumbing for all my future needs. Thank you to Jason and all your staff“

“I gave 5 stars so you would read this. THIS COMPANY SUCKS!! THEY DID A BIG OLE BAIT AND SWITCH. COST ME 4200 MORE THAN QUOTED ON THE PHONE!!“