What this covers
Water filtration removes what the supply brings in: sediment, chlorine taste and odor, iron, or specific contaminants found by a test. A whole-house filter sits on the main line and treats every tap, usually with a sediment stage and a carbon stage in large housings with a bypass. A reverse osmosis system under the kitchen sink pushes water through a fine membrane into a small storage tank and a dedicated faucet for drinking and cooking. The plumber starts with a water test or the utility's report, matches the system to the results and flow rate, installs it with shutoffs and a drain connection, and explains the filter change schedule.
When to call
- Water that tastes or smells of chlorine, sulfur or metal.
- Sediment in aerators or orange staining from iron.
- A well or a utility report that shows a contaminant you want removed.
- A wish to stop buying bottled water.
What to expect
- TestA water test or the utility's report shows what needs to be removed.
- SelectA whole-house filter, reverse osmosis unit or both are matched to the results and flow.
- InstallThe system is plumbed with a bypass or shutoffs, a drain connection and a dedicated faucet where used.
- Set upThe system is flushed, checked for leaks and the filter schedule explained.
Get a certified company
Look up a certified company by ZIP code. Every company's license, insurance and trades are verified before it is listed, and placement is never paid.
Questions people ask
Whole-house or under the sink?
A whole-house filter handles sediment, taste and odor at every tap. Reverse osmosis gives the highest level of treatment at one drinking tap. Many homes use both.
Does reverse osmosis waste water?
It sends some water to the drain as it filters. Modern units reject far less than older ones, and a permeate pump reduces it further.
How often do filters change?
Sediment and carbon cartridges typically change every six to twelve months, and an RO membrane every two to three years, depending on water quality and use. The plumber labels the dates.
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This page describes what the service involves. The company you hire sets the scope, the schedule and the price, and your contract is with that company. We verify credentials and collect reviews from real jobs. We do not guarantee any company's workmanship. Safety steps are general guidance. When in doubt, leave the home and call 911.