"Scott was super informative and helpful in showing us the difference in the water softener systems. We love that we now have the added alkaline water â on tap!â"

"Great prices! The entire team was extremely easy to talk to and work with throughout the process (quote, scheduling, Q&A, install, etc.), and the job was done quickly and without a fuss. Whole house water system is working great and skins feels so much better, and the under sink RO water tastes great! Thanks, guys!"

"Reverse osmosis water purification system needed routine maintenance—changing filters, etc. Professional, competent techs showed up as scheduled, assessed what was needed, and made second appointment for completing the work. Work completed in short order. Rea$onable."

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!

"I hired a plumber through HomeAdvisor using prepay but I would not recommend this service. The contractor left a leaky pipe that caused water coming up through carpet. I had to purchase a wet vacuum to dry out the carpet. I had to contact HomeAdvisor again and hired Dave the Plumber, LLC who had to redo the installation done previously. Dave the Plumber replaced all the piping and outside spigot because of a water leak the previous contractor left. Thank you Dave the Plumber for being a professional and a job well done."

"Their service is expensive, but they are very responsive, efficient, and thorough. The plumber who came also taught me a great deal about how to prevent future problems. Overall, I was very pleased with their service."

"They kept me appraised of their schedule. They did some troubleshooting over the phone and were able to get my water on before they arrived. When they discovered the problem, they walked me through it step by step so I knew what was going on and what needed to be done. I really appreciated that."

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.

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"The plumber was very informative and offered me money saving options."