Mermaid Water is a full service water treatment firm that provides equipment, installation and service for all types of water issues. We focus on residential treatment systems for both well water and municipal water sources. Additionally we serve commercial, industrial and governmental clients for a variety of tailored solutions.

Our geographic territory covers Northern Virginia, most of Maryland, Washington DC, Delaware and the eastern part of West Virginia. Please refer to our territorial map Kinetico water systems distribution area.

We are this area’s authorized dealer for the Kinetico brand of non-electric, twin tank design, demand-based self-cleaning filtration and conditioning equipment. Kinetico, Inc. of Newbury, Ohio has developed and manufactures the industry’s most cost effective, operationally efficient, durable and longest warranty water treatment equipment in the world. Kinetico has 380+ authorized dealers throughout the United States and over 100 countries. Mermaid Water can also repair or replace your existing electric treatment system.

Our dealership started as Commonwealth H2O in 1979. In March 1983 Commonwealth H2O became a Kinetico authorized dealer. In the fall of 2001, Bruce King, a 28 year veteran in the water treatment industry bought out the previous owner of Commonwealth H2O and renamed the firm Mermaid Water. Since 2001 Mermaid Water has grown dramatically to become the 8th largest Kinetico dealer in the USA and a Top 15 Dealer worldwide.

Mermaid operates from three offices currently – Manassas, VA, Severn, MD and Dover, DE. All employees have been trained in Kinetico Development Courses to provide management, sales, installation, service and administrative functions.

Mermaid Water Offices:


8846 Rixlew Lane
Manassas, VA 20109
Phone: 703-368-3008
Fax: 703-335-8043


173 Brenda Lane, Suite E
Camden Wyoming, DE 19934
Phone: 800-333-4465
Fax: 703-335-8043


8176 A Telegraph Rd.
Severn, MD 21144
Phone: 410-544-1111
Fax: 703-335-8043

Mermaid Water is known around the greater Manassas, VA area for its dedication to solving water problems and satisfying the customer. That’s one of the reasons why we offer Kinetico products. They’re unlike anything else on the market with brilliantly simple solutions tailored to your home. With a comprehensive line of water treatment products and trained water professionals dedicated to helping you determine what solution is best for your family, we have confidence you’ll enjoy the Mermaid Water experience. We’re looking forward to having you join our growing list of happy customers.

At Mermaid Water, we not only work in the Manassas, Virginia community, we support it as well. We’re proud to …

Our Professional Promise

As an authorized, independent Kinetico dealer, we hold ourselves to higher standards. Our water professionals and service technicians keep your best interests at heart. Whether we’re analyzing your water, helping to determine the best solution for your water challenge or explaining how Kinetico systems work, no one will bring more professionalism into your home or is more interested in your total satisfaction. We promise.