Reverse Osmosis Drinking Water System Installation in Indianapolis
The Cleanest Water in Your Home,
Right From Your Kitchen Tap
Plumbing Services We Handle Every Day
Water
Heaters
Tank and tankless repair, install, and flush service. Navien and Rinnai certified.
Water
Quality
Softeners, whole-house filtration, and reverse osmosis systems for Central Indiana’s hard water.
General Plumbing Repairs
Faucets, toilets, garbage disposals, fixture stops, main shut-offs, and everyday leaks — done right the first time.
Gas
Lines
Licensed gas line repair and installation for stoves, water heaters, dryers, and more.
Remodels
Bathroom & kitchen remodeling plumbing rough-ins, fixture upgrades & light remodels.
Sump
Pumps
Install, repair, and battery backup systems to keep basements and crawlspaces dry.
Commercial Plumbing
Licensed commercial work for small businesses and property managers across Marion and Johnson Counties.
Plumbing Inspections
Water
Heaters
Tank and tankless repair, install, and flush service. Navien and Rinnai certified.
Water
Quality
Softeners, whole-house filtration, and reverse osmosis systems for Central Indiana’s hard water.
General Plumbing Repairs
Faucets, toilets, garbage disposals, fixture stops, main shut-offs, and everyday leaks — done right the first time.
Gas
Lines
Licensed gas line repair and installation for stoves, water heaters, dryers, and more.
Remodels
Bathroom & kitchen remodeling plumbing rough-ins, fixture upgrades & light remodels.
Sump
Pumps
Install, repair, and battery backup systems to keep basements and crawlspaces dry.
Commercial Plumbing
Licensed commercial work for small businesses and property managers across Marion and Johnson Counties.
Plumbing Inspections
hOW CAN WE HELP?
Why Indianapolis Homeowners Are Adding Reverse Osmosis
Indianapolis municipal water meets EPA safety standards, but “safe” and “pure” are two different things. Even after treatment, your tap water contains dissolved minerals, residual chlorine, disinfection byproducts, and trace chemicals that affect its taste. Most people can tell the difference between tap water and filtered water in a blind test, and once you have an RO system at your kitchen sink, you won’t want to go back.
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A reverse osmosis system is a point-of-use filter, typically installed under your kitchen sink with a dedicated faucet. It’s not a whole-house system — it’s designed specifically for the water you drink, cook with, and use to make coffee and ice. We’ve been installing RO systems across the Greater Southside of Indianapolis for over three decades, and we size and configure every system based on your water’s actual needs.
Built on Workmanship, Not Hard Sells
Three Decades of Experience
Tank and tankless repair, install, and flush service. Navien and Rinnai certified.
Repair-First, Always
If a repair will solve the problem, we'll tell you — even when a replacement would pay us more.
Reasonable Upfront Pricing
Clear options for your budget, no pressure, and free second opinions on quoted projects.
100% Satisfaction Guarantee
Every repair and install is backed by a workmanship guarantee that matters when it counts.
Signs You'd Benefit From a Reverse Osmosis System
You’re Buying Bottled Water Regularly
If you’re spending money on bottled water or refilling jugs at the store because you don’t like the taste of your tap water, an RO system eliminates that expense. It produces cleaner water than most bottled brands, right from your kitchen faucet.Â
- What to do: An RO system pays for itself over time by replacing what you'd spend on bottled water. Call us for a quote.
Your Drinking Water Doesn’t Taste RightÂ
Chlorine aftertaste, a slight chemical flavor, or a flat mineral taste are all common with Indianapolis tap water. These come from the treatment process and the dissolved solids naturally present in our surface water supply. An RO membrane removes what causes those flavors.Â
- What to do: If a pitcher filter isn't solving the taste issue, an under-sink RO system provides a permanent fix at a higher level of filtration.
You’re Concerned About Trace ContaminantsÂ
PFAS compounds have been detected in some Indianapolis-area water supplies at levels within current EPA limits. If you’d prefer to reduce your household’s exposure to trace chemicals, dissolved metals, or other contaminants that standard treatment doesn’t fully remove, an RO system provides that extra layer of protection at the tap you drink from most.Â
- What to do: We can test your water and recommend the right RO configuration based on what we find.
You Use Tap Water for Cooking and BeveragesÂ
The quality of your water affects the flavor of everything you make with it — coffee, tea, soup, pasta, ice. Dissolved minerals and chlorine carry into your food and drinks. RO-filtered water produces cleaner flavors because it removes what gets in the way.Â
- What to do: An RO system with a dedicated faucet gives you filtered water on demand for cooking and beverages without slowing down your main kitchen flow.
You Have a Softener But Still Don’t Love the TasteÂ
- What to do: Pairing a whole-house softener with an under-sink RO system is the most complete water treatment setup for an Indianapolis home. We install both.
Reverse Osmosis Services We Provide
Under-Sink RO System Installation
We install point-of-use reverse osmosis systems under your kitchen sink with a dedicated filtered water faucet. Installation includes cold water supply connection, drain line for wastewater, storage tank placement, and system testing. Most installations are completed in a single visit.
RO System Replacement and Upgrade
If your existing RO system is old, producing water slowly, or no longer filtering effectively, we'll evaluate whether a membrane replacement or a full system swap makes more sense. Newer systems are more efficient and waste less water than older models.
Filter and Membrane Replacement
RO systems have multiple filter stages that need periodic replacement — pre-filters, the RO membrane, and post-filters each have different replacement intervals. We service all major brands and can set you up on a maintenance schedule so you never have to wonder when filters are due.
Complete Water Treatment Packages
For homeowners who want full coverage, we install a water softener for whole-house hardness protection plus an RO system for clean drinking water — all in one project. This combination addresses both the hardness and the chemical/contaminant side of Indianapolis water quality.
What Reverse Osmosis Does for Your Drinking Water
Removes What Other Filters Miss
A properly maintained RO system typically removes 95–99% of total dissolved solids from your drinking water. That includes dissolved minerals, salts, metals, and chemical compounds that carbon filters and softeners don't address. It's the highest level of residential water filtration available.
Tested and Certified Contaminant Reduction
The EPA's WaterSense program certifies point-of-use RO systems for the reduction of lead, arsenic, chromium, nitrate, and PFAS — with a minimum requirement of 75% total dissolved solids reduction daily. When we install an RO system, we recommend WaterSense-labeled or NSF/ANSI 58-certified units, so you know the performance claims are backed by independent testing.
Stop Buying Bottled Water
According to the International Bottled Water Association, the average American consumed 47.3 gallons of bottled water in 2024. For a household of three or four, that adds up fast — both in cost and in plastic waste. An RO system produces water that's cleaner than most bottled brands at a fraction of the ongoing expense. Once it's installed, filtered drinking water is always available on demand.
Everything You Cook and Drink Tastes Better
When you remove chlorine, dissolved minerals, and chemical residue from your water, you taste the actual ingredients in your coffee, tea, and food — not what was in the water. Cleaner ice cubes, clearer soups, and better-tasting beverages are some of the first things homeowners notice.
What to Expect When We Install Your RO System
Every RO installation starts with a conversation about how you use your drinking water and what concerns you have. If you haven’t had your water tested yet, we’ll recommend a test so we can configure the right system for your specific water quality.
Installation
We mount the system under your kitchen sink, connect it to your cold water supply line, run a drain line for the wastewater (reject water), install the pressurized storage tank, and add a dedicated faucet to your sink or countertop. We test the output water quality before we leave to verify that the system is performing properly.
How an RO System Works
Water passes through a series of filters — typically a sediment pre-filter, a carbon pre-filter, the RO membrane itself, and a carbon post-filter. The membrane has microscopic pores that allow water molecules through, but block dissolved contaminants. The filtered water is stored in a small pressurized tank under your sink and delivered through the dedicated faucet on demand.
Maintenance Schedule
Pre-filters and post-filters typically need replacement every 6 to 12 months. The RO membrane lasts 2 to 3 years under normal use. We'll walk you through the schedule during installation. Financing is available through Wisetack for larger projects that include an RO system as part of a full water treatment package.
Related Services
Water Softener Installation
A softener protects your whole home from hard water. Pair it with an RO system for complete water treatment — softened water everywhere, purified drinking water at the tap.
Whole-House Water Filtration
Want filtered water at every faucet, not just the kitchen sink? A whole-house system paired with an RO system covers both bases.
Plumbing Inspections
Combine a water quality assessment with a whole-house plumbing inspection to get a full picture of your home's water and plumbing health in one visit.
What Our Neighbors Are Saying
If you want to work with an honest plumber who will execute the job with excellence, then you need to come to Parkhurst Family Plumbing! We had a major water leak and they got us in contact with a company that would help us with the insurance process while working quickly to help resolve the plumbing issues. We have had him install our kitchen sink four years ago, install a dish washer, install some toilets, replace the outside water spigot after it was leaking, reinstall the garbage disposal, fix the burst pipe (which required getting in the slab) and also fix a bad installation of a pipe in our bathroom by the home builders 20 years ago. He does an outstanding job and will be honest through the process. He’s also come out after hours and all times of the day and NOT charged an arm and a leg. Thanks, Larry! I should have left a review a long time ago — he can do it all!
February 9, 2026
I contacted Larry around 11am because the installers for our new stove said we needed to have a licensed plumber come out and change our stoves gas line. Larry came out later the same day and had everything fixed and even helped install our new stove for us. I highly recommend reaching out to him if you find yourself in need with your plumbing because he really saved my sanity by being here so fast and helping us.
October 15, 2025
Save thousands and use Parkhurst. The big dogs in town will rob you blind!! Apples to Apples quote proves that. One of the few honest business left in Indianapolis. I will 100% use them in the future.
February 25, 2026
We had a new experience in our home last night. We used the master tub, only to come downstairs and find an absurd amount of water coming from around the air vent in the kitchen ceiling! I immediately called Larry, and he was able to come over bright and early this morning to check the problem. Larry quickly found the issue: come to find out, we had a crack in the overflow catch! Larry was able to get it fixed and did a great patch in the wall, too! We’ve never had a plumbing issue before this, but if we ever do again, we definitely know who to call!
January 4, 2026
INDIANAPOLIS WATER: WHAT'S ACTUALLY IN IT?
Indianapolis tap water runs 12 to 25 grains per gallon — anything above 7 is considered hard, according to Citizens Energy Group. That mineral load is why water heaters, fixtures, and appliances wear out early across the Southside.
12
25
GPG
Three systems, three different jobs.
Removes calcium and magnesium through ion exchange. Fixes scale, spots, and soap scum at every tap.
Whole-home · ion exchange
Carbon and sediment filtration reduces chlorine, Chemical Contaminants, and sediment throughout the home.
Whole-home · carbon + sediment
Point-of-use system under the kitchen sink. Purified
water for drinking and cooking down to the
molecular level.
Kitchen · drinking water
Water softener
Removes calcium and magnesium through ion exchange. Fixes scale, spots, and soap scum at every tap.
Whole-home · ion exchange
Whole-house filter
Carbon and sediment filtration reduces chlorine, Chemical Contaminants, and sediment throughout the home.
Whole-home · carbon + sediment
Reverse osmosis
Point-of-use system under the kitchen sink. Purified
water for drinking and cooking down to the
molecular level.
Kitchen · drinking water
Proudly Serving Indianapolis and the Southside
From our shop in Franklin Township, we cover the full south side of the city and into both Marion and Johnson Counties, about a thirty-mile radius across Central Indiana.
Cities We Serve
Not on the list? Call us — if you’re within our service radius, we’ll make it work.
Reverse Osmosis Questions
Is reverse osmosis worth it in Indianapolis?
If you care about the taste and purity of your drinking water, yes. Indianapolis tap water meets safety standards, but it still contains chlorine, disinfection byproducts, dissolved minerals, and trace contaminants that affect taste and quality. An RO system gives you cleaner drinking water than most bottled brands.
How much does an RO system cost in Indianapolis?
Cost depends on the system size, your home’s plumbing configuration, and how hard your water tests. We provide a written quote after testing your water and assessing the installation site — no surprises. We also offer financing through Wisetack with 0% interest for 12 months.
What's the difference between reverse osmosis and a whole-house filter?
A whole-house filter treats all the water entering your home — every faucet, shower, and appliance. An RO system is a point-of-use filter that treats water at one specific tap, usually your kitchen sink. RO removes far more contaminants than a whole-house filter, but it’s designed for drinking water, not the entire home. Many homeowners install both.
Does an RO system waste water?
Yes — RO systems produce some wastewater as part of the filtration process. Older systems had ratios as high as 4 gallons wasted per 1 gallon produced. Newer EPA WaterSense-labeled systems are significantly more efficient. We recommend high-efficiency units that minimize waste while maintaining filtration quality.
How often do RO filters need to be changed?
Pre-filters and post-filters every 6 to 12 months. The RO membrane every 2 to 3 years. We’ll set you up with a schedule during installation so you know exactly when each stage is due. We also offer maintenance visits if you’d prefer to have us handle the replacements.
Ready for an Honest Plumber?
We’re here when you need us — with clear options, reasonable pricing, and work we stand behind.
