Get matched with top water treatment pros in Gaithersburg, MD

"No complaints thus far. Only have their water treatment system a short time. Will update review later."

"Routine Water system inspection after installation. Very friendly and thorough"

"Previously, I had another system. The Hague uses a fraction of the salt that my previous system used - which mean less bags and less waste! The RO is even better! I never have to haul in 5 gallon bottles. Saves my back and the planet. All we use are reusable bottles now! My Hague RO water tastes so good - it is hard to drink other water."

"Excellent plumbers and water treatment systems experts! Josh is fabulous.... so professional, courteous, AND knowledgeable.... Alwasy a pristine job, solves many issues realiably and I can count on him to know just what to do and how to do it!"

"Very knowledgable and professional. Tech took the time to explain how the system works."

"We got a quote from leaf home water solutions, Frank was our sales person, he was very nice and personable. We decided to buy the system. We have well water. We had hard water. We were sold only what we needed! Nothing else! Our installer was Andy and he was also very nice and cared about the work he was doing! He made sure everything was level and did a wonderful job! Thank you guys! We are very happy and our water tastes good."

"very courteous; the original project was to fix leaks from the toilet; I asked the team if they could also fix a water connection to outside faucet, they agreed after checking with the office. So all in all, great technicians highly recommended"

"Services were prompt, clean and efficient. Tech was knowledgeable and personable. Water heater was affordable. Estimate (free) was done on site - not guessing over the phone."

Welcome to Markool Heating & Cooling. We proudly provide the highest quality of service and craftsmanship for each aspect of your project. Our depth of knowledge and experience solidify our belief that customer service stands as the highest priority. We eagerly look forward to working with you and making your vision a reality. Give us a call, text, or email today, and let us get started!

We take great pride our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. Order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.