
Wauwatosa, Milwaukee County
Water softener installation in Wauwatosa, WI
About 8 grains per gallon · Wauwatosa’s published figure
Wauwatosa treats none of its own water. It buys Milwaukee’s finished lake supply at the city line. Your number is Milwaukee’s number, which is the softest water in this market and still hard on the USGS scale.
Your water
Where Wauwatosa gets its water
Wauwatosa is served by the Wauwatosa Water Utility, which buys finished water rather than treating any. Milwaukee Water Works filters, treats and pumps Lake Michigan water to the city limits, and Wauwatosa distributes it from there.
Milwaukee Water Works publishes 137 mg/L across a 112–142 range.
Wauwatosa’s water comes through a purchase agreement with Milwaukee Water Works, which performs the filtration, treatment and pumping to the city limits. Milwaukee publishes hardness of 137 milligrams per liter across a 112 to 142 range, which is about 8 grains per gallon.
Source: City of Wauwatosa Water Utility; Milwaukee Water Works published hardness
What Wauwatosa homes usually need



- Free quote by phone
- Installed by a licensed WI plumber
- Softeners retested to zero
$3,950 installed for the ZeroGrain One: softener, activated carbon and the reverse-osmosis drinking tap. Installation by an independent licensed Wisconsin plumbing contractor is in that number, not added to it, and the date is set once the equipment is in hand and approved for use in Wisconsin (SPS 384). What a softener costs explains what the $3,950 includes. Swapping out an old unit is replacing a softener; the drinking tap is reverse osmosis installation.
Get your free quote
Takes about thirty seconds. We call you back the same or next business day.
In writing
Three things you get in writing
Every one of these is written on the quote or the agreement, not a promise on a call.
3 days
To change your mind
Three business days to cancel after you sign. Two copies of the cancellation notice come with the contract, filled in and dated.
0
Balance due before the install is complete
The agreement puts full payment at the completion of the install: the system in, running and your water retested at your tap.
30 days
The quote holds
One itemized page with every model named, so you can compare it against anyone.
A closer look
The ZeroGrain One, up close
The system in product renders: the softening tank and its brine tank, the drinking-water tap, and what is inside the tank, on one sheet.




Questions
Wauwatosa water questions
Anything that is not here, ask it on the call.
Softening removes hardness minerals. It is not a health or safety treatment and we do not market it as one. On a private well, Wisconsin’s state-certified lab tests for bacteria and nitrates are a separate matter and not something we sell.
Old houses, easy water
The water arriving at a Wauwatosa tap is the least demanding in this service area. What varies is the century of plumbing between the main and the fixture, which is why the plumber reads your kitchen tap on install day rather than trusting the utility average and calling it a day.
Is the whole-home system worth it here?
At about 8 grains it may not be, and if that is what your numbers say, the call will say so. The reverse-osmosis tap comes with the whole-home softener, not on its own.
How does the quote work in Wauwatosa?
We start from the number, not from a catalog: what Wauwatosa publishes, and what your house needs. One short call puts the two together, at no charge. If the numbers justify softening we size it from them; if they point away from softening, the call says so plainly. On install day the plumber reads hardness, iron, chlorine and TDS at your tap before anything is connected, and on a softener install retests hardness at the end so you watch it read zero.
Free quote, by phone
A free quote by phone, anywhere in Wauwatosa.
One short call, about fifteen minutes. We size from your town’s published number, or your well’s lab result, and your household, and you end the call with a one-page itemized quote.
- Free quote by phone
- Installed by a licensed WI plumber
- Softeners retested to zero