Fairfax County lists Fairfax Water as the water provider here, with hardness of about 77 to 147 mg/L from its Occoquan plant and 70 to 185 mg/L from its Potomac plant. If your property has its own well instead, test the water first. Call the number on this page to be connected with a local plumber in Fairfax Station.

Signs your home needs a softener
- White mineral rings on sinks, tubs and toilet bowls
- Glass shower doors that cloud over between cleanings
- A water heater that crackles or takes longer to recover
- Reduced flow from showerheads with crusted nozzles
- An older softener that uses salt but leaves the water hard
Water in Fairfax Station
Fairfax Water draws from the Occoquan Reservoir at its Griffith plant and the Potomac River at its Corbalis plant. Its analyses put Griffith water at about 77 to 147 mg/L, roughly 4.5 to 8.6 grains per gallon, and Corbalis water at 70 to 185 mg/L. That's moderately hard to hard, and the reading at your sink shifts with the season and the plant supplying it.
Fairfax Station is a large-lot area, and service can vary by address. If your home draws from a private well, the water needs a lab test for hardness, iron, manganese and pH before choosing equipment. If county sewer doesn't reach your street, regeneration water goes to a private onsite wastewater system, and a metered, high-efficiency unit keeps that volume down. Ask the plumber to check both before quoting.
The median home here was built around 1982. Many have walk-out basements with the main near the water heater and a floor drain, a good layout for a softener.
What affects the cost
- Public water versus a well with extra filtration needs
- Capacity for larger homes and several bathrooms
- Distance from the main to a drain and an outlet
- Replacing stiff or leaking valves at the main
- Carbon filtration for disinfectant taste on public water
- Removing an existing system
What happens when you call
The number on this page is a free referral line, not a plumbing company. It connects you with an independent plumber who works in Fairfax Station. Say whether you're on Fairfax Water or a well, whether the home is on county sewer, and what you're seeing at the taps. Fairfax Water uses chloramines most of the year and free chlorine about April through June; if taste is part of the complaint, mention it so the plumber can suggest a carbon stage. Fairfax County Land Development Services handles plumbing permits for Fairfax Station.
Water Softeners & Filtration questions in Fairfax Station
Why does my hardness reading change from season to season?
We are on a private well. What should be tested before a softener goes in?
Is a softener a good fit for a home that is not on municipal sewer?
Will softened water add sodium to what we drink?
More plumbing services in Fairfax Station
Water Softeners & Filtration nearby
Helpful guides
Sources
- Fairfax County: utility and cable providers
- Fairfax County: where drinking water comes from
- Fairfax Water: Corbalis plant finished-water analyses
- Fairfax Water: Griffith plant finished-water analyses
- Fairfax County: wastewater management
- Fairfax County Land Development Services: permits in PLUS
- Housing by year built: Fairfax Station
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