Best boiler installation pros near Thurmont, MD

"Great installers precessional and respectful"

We are a small family owned Heating, Ventilation, and Air Conditioning (HVAC) company located in Sharpsburg, MD. The business was started in 1989 under the name of RW Harrell's Pump Service Inc. when Diane Harrell and Ronnie Harrell purchased a well pump and water system business from a gentleman that was retiring. Ronnie had worked in the HVAC field from the time he had graduated from high school so it was natural to add HVAC to the services that this new company would offer. Ronnie and Diane built the company by word of mouth and continue to grow the company in this manner. Additional DBA - Harrell's Services. Additional fax - 928-492-8004

"Our furnace finally bit the dust after 25 years of faithful service. I had TriState do several small repairs and maintenance on it over the years, and they always did a good job. So, when the last service rep told me it was finally beyond repair, we consulted with Comfort Specialist, Darren, who isn't just a salesman, but previously installed and repaired HVAC systems. He took lots of measurements, inspected the old unit and the runs to the outside and upstairs. He took his time making calculations and offered us several options on a new system. TriState uses Daikin furnaces, which are rated in the top 5 furnaces for dependability and efficiency. The price, I thought, compared to my two other neighbors, who also recently purchased new systems, was even lower than I thought it going to be. In fact, my neighbors paid more (by thousands) and have a smaller square footage footprint than my house. We've had the unit now for over a month, and so far, it's great. It is a one-zone system, yet the upstairs will only vary by one or two degrees. This is much better than the old unit. We're hoping this small variance in temperature will also apply when the AC is on in the summer. The installers were very professional, arrived on time and completed the work in a timely manner. I would definitely use TriState again, and will rely on them whenever I need service."

"Fast, friendly and fantastic service...My parents were long time PETRO customers; and my wife and I have been since 2000...They have installed a new furnace, regularly maintain it; and deliver our fuel oil...GREAT customer service and thy work hard to make everything right!"

"Very nice company Respectful of property Did a very nice job installing my heat pump, worked with me on price, and they were very careful when installing the equipment so as not to damage my property like it was their own house !"

A/C and Heating company in GAITHERBURG, Bethesda, Chevy Chase, Frederick, Germantown, Washingtown DC. Virginia. And all of the DMV area.

"NATS responded the same day that I called them and picked the computer up at my home. Several days later, Mike called and stated the service to be performed, ensuring the size of the replacement hard disk drive, and provided the approximate cost. Within a week (Memorial Day weekend was during this period), Mike delivered the computer back to my house. I was pleased that Mike had not only reloaded Windows 7 (I had to input my own product code), but he had also spent the time to download and install upgrades to Windows 7."

"They did an excellent job and replaced our heat pump and system in one day when the tempature was 22 degrees. After it was turned on they adjusted and balanced everything so it was perfect. They are an excellent professional company."

"The serviceman did a great job in installing the new burner. Did it with ease."

"Jeremy, the owner was great! His helper was awesome too so we had a great team replace our water heater. He was super helpful taking time to answer any questions we had. They worked quickly and got the job done fast and professionally. My neighbor had his water heater done just before I did by someone else and he wished he used Eberly."