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Top-Rated Water treatment & purification system installers and replacers in Alexandria - Updated Nov 2026

Avatar for Purfect Water Solutions, Inc.
Purfect Water Solutions, Inc.
4.8(
486
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Warranties offered

"Installed both a water softener and reverse osmosis system at my home. They did a great job with the installation, was professional, and ensured everything was working perfectly. Highly recommend their services for water purification needs!â"
1
Reverse Osmosis
Our work
Install 2
Our work

+1

Response time10 hrs
Response rate100%
1110 neighbors recently requested a quote
Avatar for Quality Water LLC
Quality Water LLC
4.8(
90
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 1998

Free estimates

Credit card accepted

"Randy Williams was both very professional, very knowledgeable and just a genuinely nice guy. The install of the water filtration system was my first for my first home and he put my nerves at ease. If you have a question about what he is doing or about what equipment is being installed he will answer it. He went over everything he installed with me and made sure I understood what I needed to do on my part to maintain the filtration system. I highly recommend his company for any install or service you may need for your water."
Logo
Response time6 hrs
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for DB's Plumbing & Drain
DB's Plumbing & Drain
4.8(
194
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"DB's has emergency service so, when the water line to my refrigerator was leaking late at night, they came out right away and replaced the line as well as the decrepit faucet that feeds it in the wall. The water line replacement moved pipes to a route under the house with no disruption to the walls. A small area about 18 inches square in the floor of the basement utility room was re-cemented, so there is no evidence of the replacement and they re-seeded the area in the front lawn that had to be dug up. This company has never failed me. They stand behind their estimates and never charge more. I highly recommend them."
Sewer replacement Inside and out
Team at our new locations ribbon cutting
Expansion tank with new venting
New pipe continued
Whole house re pipe

+212

Response time12 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
255
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"My tech was quick to point out some rather glaring issues that were difficult to rationalize. I immediately recalled a prior summertime repair from a different company whereby my system was deemed to be at the end of its useful life. Two wires (yes two) were found unconnected at the safety pressure switch. A toggle switch on the Trane Gas valve was found in the off position also. This system will go another ten years, I'm convinced of that, but it appears this Vienna, VA outfit felt that they could make the case with dubious business practices."
Snell Plumber Kitchen
Snell Tech Water Heater
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for SwiftPro Heating, Cooling & Plumbing
SwiftPro Heating, Cooling & Plumbing
4.6(
166
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"The estimator/sales person and technicians were top notch. The estimator worked with me on the system requirements and the cost of a new heat pump system. My old system was 20 years old so that the heat pump and inside air handler had to be replaced. Also replaced the thermostat for good measure. The technicians did an excellent job with the install, neat and professional. The system has been working really well. Overall, I believe that I received excellent service at a reasonable cost."
Air Conditioner Trane Unit Install
Duct Cleaning
Tri County Feeds Customized ducts and HVAC complete systems
Trane HVAC Heating & A/C Install
Trane Install Heating & AC Project. Dual-Fuel & Solar-Compatible Systems

+62

89 neighbors recently requested a quote
Recommended by43%of homeowners
Avatar for HydraLux Systems LLC
HydraLux Systems LLC
5.0(
6
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

HydraLux is a small, family-owned business with 15 years of experience, carrying on his father’s 30 year legacy and expertise providing premium water treatment across the DMV. We’re proud to offer FREE water testing, competitive pricing, service on existing systems, and personalized solutions tailored to your home or business. With a commitment to unmatched customer care and clean water for every family, we treat your home like our own. Let us help today!

Response time2 hrs
Response rate100%
33 neighbors recently requested a quote
Avatar for John C Flood LP.
John C Flood LP.
4.4(
62
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

Super Service Award Winner

In business since 1920

Free estimates

Warranties offered

"Timely, professional, and personable technician. Provided options for repairs and coordinated an assessment for replacement of system. I’m a customer that was moved with the sale of A-One to John C Flood and I am happy with the transition. The work was on my HVAC system, but that was not listed in the drop down."
Tech Education
John C. Flood - Going to Work
John C. Flood - Teamwork
John C. Flood - Busy Morning
John C. Flood - Work Underway

+28

Response time2 hrs
43 neighbors recently requested a quote
Recommended by49%of homeowners
Avatar for Michael & Son Services, Inc.
Michael & Son Services, Inc.
3.3(
235
)
Water Treatment & Purification System - Install or Replace

Serving Alexandria, VA and surrounding areas

Approved

In business since 1976

Emergency services offered

Warranties offered

"Excellent experience. From the time of chatting with a customer service representative, to pre-installation survey, and finally to the installation, everything was smooth and professional. Thanks Michael & Son Services."
Electrical Services
Electrical Services
Present Information to Customers
Arriving at Home
Fully Stocked Trucks

+11

Response time2 hrs
Response rate97%
Recommended by76%of homeowners
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