Is Your HVAC Unit Failing?

A family owned company providing honest, fair, and professional work while improving the air quality and comfort of your home.

Our Services

AC Installation

Ac Repair

Heating Installation and repair

About Us

Choose A HVAC Company Serving the Sandown, Londonderry & Windham, NH and surrounding areas

If you're in need of HVAC repair services, turn to Hyson Mechanical LLC. We're an experienced HVAC company that is proud to be serving the Sandown, Londonderry, Windham, and Atkinson, NH region and surrounding areas.

There's no reason to let your home become uncomfortable due to a faulty AC or heater when we can fix them for you pain-free. We'll even give you a free estimate and consultation on all your HVAC problems.

Is your boiler on the fritz? Reach out to our experienced technician today by calling 603-571-4822.

What services do we provide?

We’re committed to keeping you comfortable inside your home. And getting your HVAC system back to normal is our number one priority. From replacements to HVAC repair services, we can do it all. Trust our experienced technician for:

We’re here for you when those late-night emergencies take you by surprise as well. You can call your local HVAC company 24/7.

Don't Sweat It, We've Got You Covered

If your AC unit isn't producing cold air, ask about our services now

Why choose Hyson Mechanical LLC?

You don't want to trust your expensive HVAC system to just anyone. Choose us because our technician is experienced, insured and reliable when it comes to fixing HVAC units. You can expect the job to be completed in a timely manner by a personable expert. Don't let amateurs cost you more money in the long-run when you can let professionals complete the job with no issue

Don't let a faulty unit run up your heating or AC bill. Reach out to our trusted HVAC company today.

★ ★ ★ ★ ★

I don't normally write reviews but needed to write this one. Josh came to our house on an emergency call and fixed our problem right away. We had him back a week later to clean our central air. We are so happy to have found him and will be having him back in September to clean and service our gas furnace. Josh is extremely knowledgeable and goes beyond what he was called to do. We highly recommend him!

Repair or Service a Central Air Cleaner

Donna S. Danville, NH

★ ★ ★ ★ ★

Josh was knowledgeable, went up and beyond with his service, was easy to talk to, and took his time to make sure that EVERYTHING worked right before he left. All for one flat price. He is now my new service company.

Repair Oil Furnace / Forced Air Heating System

Leon A. Atkinson, NH

★ ★ ★ ★ ★

Josh was great. He immediately got in touch with me after I sent in a service request. He made me a priority even on a weekend. I had tried other companies before coming across Hyson Mechanical. My Thermostat completely died on me. Josh comes fully prepared and stocked he even had replacement parts. I highly recommend Hyson Mechanical.

Install or Replace a Thermostat

Irenemarie M. Sandown, NH