Guide

Whole-House Water Filters in Florida

What to know before buying a whole-house water filter in Florida, from utility sources to system choices.

A whole-house water filter is not something every Florida home on city water necessarily needs, because the utility already treats the water before it reaches you, and the decision really comes down to where in your home you want filtered water and what your plumbing allows. A whole-house filter is a system installed at the point where the water supply line enters the home, so water is filtered before it branches out to the kitchen, bathrooms, laundry, and other points of use inside. If you are on city water in Miami-Dade, Broward, or Palm Beach County and thinking about one, the sections below walk through what to compare, what to read first, and how we work. For a closer look at the systems themselves, see our whole-house water filters page.

The main choices

  • Whole-house filter

    A whole-house filter sits on the main line and treats water before it reaches the fixtures inside your home. It does not cover outdoor hose bibs or irrigation lines that branch off before the filter. If you want filtered water at every indoor fixture, this is the type to look at. See how a whole-house filter works for more detail.

  • Under-sink reverse osmosis

    A reverse osmosis system sits under one kitchen sink and delivers filtered water at that tap only. It is a common choice when you want a dedicated drinking water source rather than coverage throughout the house. See our reverse osmosis systems page for more detail.

  • Whole-house filter plus under-sink RO

    Some homeowners put a whole-house filter on the main line and an under-sink RO at the kitchen sink. Whether that combination makes sense depends on what you want filtered and where. Our whole-house filter or reverse osmosis: how to choose page walks through the question.

  • Water softener

    A softener is a separate type of system. It addresses water hardness, not filtration in the same sense. Some utilities treat water before it leaves the plant. The City of Pembroke Pines Utilities Department's 2025 report says the water is softened, filtered, and chlorinated before it enters the distribution system. If your utility does something similar, read their annual report or call them directly. We are not selling softeners as part of our current offer, but our water softeners and combos page has more information if you want to look into it.

Florida utilities treat water differently depending on where you are

South Florida's utilities pull from different sources and treat water differently. Miami-Dade Water and Sewer Department's 2025 report says WASD draws groundwater from wells, mostly from the Biscayne Aquifer, with a smaller number of wells drawing from the Floridan Aquifer. Fort Lauderdale's 2025 report says the city pumps from the Biscayne Aquifer, its only drinking water source, and treats it at two plants: Fiveash, a lime softening plant, and Peele-Dixie, a nanofiltration membrane plant. That report covers calendar year 2025, before the Prospect Lake Clean Water Center began feeding the system in September 2026. Palm Beach County Water Utilities Department's 2025 report describes three treatment types across its service area: lime softening and ion exchange, nanofiltration, and reverse osmosis. Utility boundaries do not follow county lines. Your water bill shows which utility serves your address. That utility's annual report is the right place to start. Our how to read your utility's annual water report page explains what to look for.

How we work and where we are starting

We are starting in Miami-Dade, Broward, and Palm Beach counties, on homes connected to city water. If you are on a private well, tell us when you call and we will be straight with you about whether we can help yet. Coverage depends on which areas we have confirmed plumbers in, so check our service areas page or just call. There is no in-home salesperson. You call, send a few photos of where the water comes in, and get one written price for a named system. Our pricing page explains how that works. A local plumber does the install. We only give you a date once that plumber has confirmed it. We would rather be honest about timing than promise and reschedule.

Ready to ask about your home?

If you are on city water and want to talk through which system fits your home, contact us. Send a few photos of where the water line comes in, or of the cabinet under your kitchen sink. We will give you a written price for a named system. No visit required before you decide.

Want to talk it through?

We'll go through your home and your utility's report with you. No visit, no pressure.
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