Under-sink RO
Certified reduction at the drinking-water tap.
- Lead
- Chlorine by-products (TTHM)
- Chlorine taste & smell
- PFAS ("forever chemicals")
from $1,195 standard-installedDetails
YOUR PRICING QUESTIONS
What determines your written installation price in Oak Lawn?
Does your Oak Lawn home meet standard-installation assumptions? The starting price published by Oak Lawn Water Filtration is typically the exact price when it does. Existing piping, equipment placement, water source, and equipment selection are reviewed before the quote for your Oak Lawn home is confirmed.
Ask for my written priceIn Oak Lawn: Oak Lawn's own inventory lists 2,214 lead service lines out of 17,039 total connections, with 75 still unclassified (as of April 12, 2023). Water source: Lake Michigan water treated by the City of Chicago and purchased through the Oak Lawn Regional Water System; the Village maintains chlorine in its distribution system. On the numbers: total trihalomethanes measured 40 ppb in 2024; the most recent lead 90th percentile was 5.93 ppb (2024). 78.2% of Oak Lawn homes were built before 1980, which is why plumbing condition is part of every written scope. Oak Lawn's filing with the Illinois EPA lists 2,214 lead service lines out of 17,039 connections; the Village says about 2,300 lead and galvanized lines will be replaced over five years, starting with Phase 1 in 2026. In 2024 lead sampling, Oak Lawn's 90th-percentile result was 5.93 ppb, below the 15 ppb action level, with 1 sampled site above it. The EPA's health goal for lead is 0.
WHICH SYSTEM FITS
Is the job at the kitchen sink or throughout your Oak Lawn home?
For under-sink RO in Oak Lawn, the standard-installed starting price is from $1,195, including a dedicated filtered-water faucet, standard connection, startup, and walkthrough. For high-flow whole-home treatment of chlorine taste, odor, and selected disinfection byproducts in Oak Lawn, carbon is from $1,795 standard-installed. For hardness and scale in your Oak Lawn home, a high-efficiency softener is from $1,795 standard-installed; it exchanges hardness minerals and is not a filter.
Whole-home carbon
Chlorine taste and odor out of every tap.
- Chlorine taste & smell
from $1,795 standard-installedDetails
Water softener
Scale protection sized to your measured hardness.
- Hard water & scale
from $1,795 standard-installedDetails
Complete Home System
Softening, whole-home carbon, and RO together.
- Lead
- Chlorine by-products (TTHM)
- Chlorine taste & smell
- Hard water & scale
- PFAS ("forever chemicals")
from $2,699 standard-installedDetails
WHAT ABOUT PACKAGES
City Water Duo
Whole-home carbon for everyday water plus reverse osmosis at the kitchen tap for drinking and cooking. Need carbon throughout your Oak Lawn home and RO at the kitchen sink? City Water Duo supplies those two treatments for your Oak Lawn home without a softener from $2,195 standard-installed. Need softening as well? Complete Home System scopes a softener, whole-home carbon, and under-sink RO together for your Oak Lawn home from $2,699 standard-installed.
Every price assumes a standard installation. Your exact price depends on your existing piping and where the equipment goes, but it is typically the price shown. Send us two photos (under the kitchen sink, and where the water line enters your home) and we confirm the exact price, install time, and date before any work.
How is a softener sized for a Oak Lawn home? Measured hardness and household demand in your Oak Lawn home determine sizing for its demand-initiated, metered regeneration; bedroom count does not.
COMMON QUESTIONS
Pricing questions, answered.
- Send a photo of the space beneath the kitchen sink and another showing where the water line enters your Oak Lawn home. Review of those locations at your Oak Lawn home supports confirmation of the exact price, installation time, and date before work.
- Oak Lawn Water Filtration publishes water information and prices and schedules the work. Installation in Oak Lawn is performed by a properly licensed plumbing contractor under that contractor's own paperwork.
- No. Starting prices for Oak Lawn assume the stated standard installation. Permit fees, electrical work, finish repairs, repiping or service-line work, unusual site requirements, and custom well media for your Oak Lawn project are priced only when needed and belong in the written scope.
- Two-flats and other multi-unit buildings in Oak Lawn require plumbing-layout review and a quote for that building. The layout of your Oak Lawn building determines the installation scope used for its price.
Which photos are needed to confirm an exact price in Oak Lawn?
Who publishes the information for Oak Lawn, and who performs installation?
Are extra site requirements in Oak Lawn already included in a starting price?
Can the price for one Oak Lawn home apply to an entire multi-unit building?
WHAT IS INCLUDED
- An accessible main-line connection or a standard connection beneath the sink at your Oak Lawn home.
- Residential piping, fittings, and bypass within normal scope for the Oak Lawn installation.
- A suitable drain and existing power at your Oak Lawn property, where required.
- Normal working clearances for the equipment in your Oak Lawn home.
- One standard visit in Oak Lawn covering setup, programming, and commissioning.
WHAT COSTS EXTRA
- Required municipal permit fees for your Oak Lawn project, priced only when needed.
- Required electrical, outlet, or panel work at your Oak Lawn property.
- Any finished-wall or finished-floor repair at the Oak Lawn home.
- Any repiping or service-line work at the Oak Lawn property, including replacement and lead service-line work.
- Hazardous materials, access beyond normal conditions, or oversized equipment at your Oak Lawn property.
- Any custom well-water treatment media.
Which document settles the scope for your Oak Lawn project? The written installation scope for your Oak Lawn project takes precedence over a verbal estimate. For a two-flat or another multi-unit property in the 60453 area, the plumbing layout is reviewed before a quote is prepared for the building.
WHAT DOES IT ADDRESS
Which reductions does the equipment listing in your Oak Lawn quote support?
RO is certified to reduce lead, VOCs including TTHM, and PFOA/PFOS on selected certified models only, with the applicable NSF/ANSI 58/53 listing included with your Oak Lawn quote. For a Oak Lawn home, does carbon replace a softener or a lead or PFAS device? No: its scope in your Oak Lawn home is chlorine taste, odor, and selected disinfection byproducts. Does a softener remove contaminants? No: its job in your Oak Lawn home is hardness and scale.
Yes, it helps Only certain models No, it doesn't
| Water problem | Under-sink ROFilters drinking water at the kitchen sinkfrom $1,195 | Whole-home carbonFilters all the water coming into your housefrom $1,795 | Water softenerStops hard-water spots and scalefrom $1,795 | Complete Home SystemAll three togetherfrom $2,699 |
|---|---|---|---|---|
| Lead | Yes — certified to reduce lead (NSF/ANSI 53/58) | No — doesn't remove lead | No — doesn't remove lead | Yes — at the kitchen sink (through the RO) |
| Chlorine by-products (TTHM) | Yes — certified to reduce TTHM (NSF/ANSI 53/58) | Only some models — ask for NSF/ANSI 53 | No | Yes — at the kitchen sink (through the RO) |
| Chlorine taste & smell | Yes — at the kitchen sink | Yes — at every tap (NSF/ANSI 42) | No | Yes — at every tap |
| Hard water & scale | No — not a softener | No — not a softener | Yes — sized to your water (NSF/ANSI 44) | Yes — whole house |
| PFAS ("forever chemicals") | Yes — certified to reduce PFOA/PFOS (NSF/ANSI 53/58) | No — not certified for PFAS | No | Yes — at the kitchen sink (through the RO) |
Lead
- Under-sink ROFilters drinking water at the kitchen sinkYes — certified to reduce lead (NSF/ANSI 53/58)
- Whole-home carbonFilters all the water coming into your houseNo — doesn't remove lead
- Water softenerStops hard-water spots and scaleNo — doesn't remove lead
- Complete Home SystemAll three togetherYes — at the kitchen sink (through the RO)
Chlorine by-products (TTHM)
- Under-sink ROFilters drinking water at the kitchen sinkYes — certified to reduce TTHM (NSF/ANSI 53/58)
- Whole-home carbonFilters all the water coming into your houseOnly some models — ask for NSF/ANSI 53
- Water softenerStops hard-water spots and scaleNo
- Complete Home SystemAll three togetherYes — at the kitchen sink (through the RO)
Chlorine taste & smell
- Under-sink ROFilters drinking water at the kitchen sinkYes — at the kitchen sink
- Whole-home carbonFilters all the water coming into your houseYes — at every tap (NSF/ANSI 42)
- Water softenerStops hard-water spots and scaleNo
- Complete Home SystemAll three togetherYes — at every tap
Hard water & scale
- Under-sink ROFilters drinking water at the kitchen sinkNo — not a softener
- Whole-home carbonFilters all the water coming into your houseNo — not a softener
- Water softenerStops hard-water spots and scaleYes — sized to your water (NSF/ANSI 44)
- Complete Home SystemAll three togetherYes — whole house
PFAS ("forever chemicals")
- Under-sink ROFilters drinking water at the kitchen sinkYes — certified to reduce PFOA/PFOS (NSF/ANSI 53/58)
- Whole-home carbonFilters all the water coming into your houseNo — not certified for PFAS
- Water softenerStops hard-water spots and scaleNo
- Complete Home SystemAll three togetherYes — at the kitchen sink (through the RO)
Filter claims apply to the exact certified model named on your quote, used and maintained the way the maker says.
HOW ARE WELLS QUOTED
Can a package for a Oak Lawn well be selected before testing?
No. A recent laboratory report and a review of your Oak Lawn site must establish the equipment before pricing. Iron, sulfur, hardness, pH, bacteria, and nitrate call for different equipment for your Oak Lawn well, and treatment claims depend on the results. If iron or sulfur treatment is needed alongside softening at your Oak Lawn property, it precedes the softener; bacteria treatment requires an appropriate design and explained ongoing sampling responsibilities.
HOW REFERRALS WORK
When does a neighbor referral to Oak Lawn Water Filtration qualify for payment?
Payment for a Oak Lawn Water Filtration referral follows the completed installation and the end of the cancellation window. For Oak Lawn Water Filtration referrals, RO, carbon, and softener share a referral reward tier; the Duo and Complete packages pay double that amount.
$100Under-sink RO, whole-home carbon, or water softener
$200City Water Duo or Complete Home System
How many neighbors can you refer to Oak Lawn Water Filtration? There is no limit on referrals to Oak Lawn Water Filtration, and every referred neighbor receives the same published prices.