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317-830-5862

Water Filtration in Greater Indianapolis

Get cleaner, better-tasting water with expert water filtration. We size and install whole-home filters, softeners, and reverse osmosis systems to match your water. Serving Greater Indianapolis, including Indianapolis, Carmel, and Greenwood. Since 1968, our NATE-certified, licensed, bonded, and insured team has earned a 4.9 rating from 1,622 reviews. Ask about a free in-home water analysis and our transparent recommendations. Call or schedule online today.

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Price intelligence

How our prices compare.

vs market avg-22.22%
rate us fair value or better100%

What can you expect to pay?

Customer Perception

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Post-job survey · verified customers

SentimentJohnson Heating, Cooling, and PlumbingMarket avgDelta
Reasonable Price100%79%+21 pts
Current Offers4 Active

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Water Filtration$100 OFF

$100 off Water Filtration System*

October 7, 202630 days leftView offer
Water FiltrationFREE

To get a complimentary quote on a water softener in Franklin, reach out to us at (317) 406-4659 or fill out our online form.

  • complimentary quote

reach out to us at (317) 406-4659 or fill out our online form.

October 7, 202630 days leftView offer
Water FiltrationFREE

Call Johnson Comfort For a Free In-home Water Analysis

  • Access to Safer Drinking Water
  • Improved Taste of Drinking Water Enhanced
  • Energy Efficiency
  • Reduction in Sink Irritation
  • Greater Home Comfort & Livability
  • Cost Savings Over Time

Call Johnson Comfort For a Free In-home Water Analysis

October 7, 202630 days leftView offer
Water FiltrationFREE

Start with a Free In-Home Water Analysis

  • Free In-Home Water Analysis

Call us today at (317) 406-4659 or schedule your free water test online to take the first step toward better water and peace of mind.

October 7, 202630 days leftView offer
Why us

Why Choose Us

NATE-certified technicians

Background-checked and drug-tested pros on every job

Decades of local service

Serving Central Indiana homes since 1968

Licensed, bonded, insured

Fully licensed, bonded, and insured for your protection

Industry-backed guarantees

Fixed Right, or it's Free installation guarantee

Upfront, honest options

Clear recommendations and pricing before work begins

Social proof

What Our Customers Say

5.0
quality

“They did a great job with my tankless water heater and water softener.”

Got questions?

Frequently Asked Questions

A water filter leaking from the top usually means the cap-to-housing O-ring isn’t sealing because it’s worn, dirty, dry, or out of place. The most common trigger is an O-ring that twisted or flattened after a recent cartridge change. Seal failure is the primary cause, but high water pressure or water hammer, cross‑threaded caps, or a hairline crack in the housing can also let water escape. A tiny nick on an O‑ring—smaller than a grain of rice—can weep under pressure. We fix issues like this throughout Central Indiana with straightforward inspections and parts on hand. We can also service, maintain, and repair any brand of purifier or reverse osmosis system.

If you want quick checks that often stop the leak:

  • Depressurize the system after shutting off the water.
  • Remove, clean, and inspect the O‑ring; replace if cracked or flattened; use food‑grade silicone lubricant.
  • Reseat the cartridge and hand‑tighten the cap carefully to avoid cross‑threading.
  • Inspect the cap and housing for hairline cracks; replace the housing if found. Always shut off water and relieve pressure before opening the housing.

Updated: 2026-09-03

Need help in Trafalgar, IN? Call 317-830-5862 or book online. “It was a pleasure to welcome Jade into our home to install a new water softener and a new RO filter.” — Lawrence G.

Where we work

Where We Work

Zionsville

IN

Cicero

IN

Flat Rock

IN

Beech Grove

IN

Hartsville

IN

Boggstown

IN

Carmel

IN

New Palestine

IN

Martinsville

IN

West Newton

IN

Franklin

IN

Shelbyville

IN

Columbus

IN

Edinburgh

IN

Nineveh

IN

Elizabethtown

IN

Needham

IN

Monrovia

IN

Westfield

IN

Nashville

IN

Hope

IN

Whiteland

IN

Brownsburg

IN

Lebanon

IN

Greenwood

IN

Plainfield

IN

Morgantown

IN

Greenfield

IN

Fairland

IN

Trafalgar

IN

Bargersville

IN

Taylorsville

IN

Fishers

IN

Avon

IN

Brownstown

IN

Indianapolis

IN

Fountaintown

IN

Brooklyn

IN

Commiskey

IN

Mooresville

IN

Noblesville

IN

Pittsboro

IN

Westport

IN

Whitestown

IN

Camby

IN

Ready when you are

Schedule service today with Johnson Heating, Cooling, and Plumbing.

317-830-5862