Get matched with top tankless water heater installers in Knoxville, MD

"Everthing went great. Carlos and Jason were truly professional and did an outstanding job. I would definetly hire them again."

"Just started working with Markool this summer and they have been fantastic! When I need service, they are so fast and every person we have interacted with has been polite, knowledgeable and personable. We unexpectedly needed to replace our system during a heat wave and they were super. So responsive and quick. I would highly recommend Markool for all of your HVAC needs!"

"Rob was great. Explained his work and even identified another issue with the water heater pressure apparatus."

"The job was done right, very professional and knowledgeable, would recommend"

"This plumber was referred by Home Depot. He was the third person that returned a quote. He offered the best quote. We scheduled a convenient time and he arrived on time. He fully explained the work that needed to be done in a comprehensive manner. The work was done in a timely manner and left the area clean. Payment was within the initial quote. I would hire this plumber again."

"It went well. The install was done in approximately 3 hours; knowledgeable technicians. Our drinking water tastes amazing and resolved hard water problem."

"If you want a reliable job done safely and at a fair price, Rodney is the person to call."

"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."

"My well pump pressure tank needed service and I called Friday and Barbara was very professional and eager to help. She took the time to understand the issue and even reviewed the pictures. Barbara is very passionate about her job. She was able to schedule for Saturday. Dave came out. He called to let me know that he was on his way and let me know when he will arrive. He was very punctual, professional, friendly, and down to business. Totally impressed with the way he solved the problem and made sure that answered all of my questions. This company is very ethical and I would recommend them to anyone."

"Greg explained how I did not have a leak in either shower. One shower was just left over water dripping - normal. The other shower has a problem with the bathtub diverter. We are going to try to fix it ourselves. Greg emailed me shortly after I tried to contact him via Angies List and we arranged a visit early the next week. He showed up on time. We are very pleased."