Plumbing

Water Filtration in Greater Indianapolis

Johnson Heating, Cooling, and Plumbing

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.

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

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FAQs

Frequently asked questions

Still have questions?

Why Is My Water Filter Leaking From The Top?

A water filter leaking from the top usually means the O‑ring or gasket in the filter head isn’t sealing. The most common cause is a dry, pinched, or misplaced O‑ring after a recent cartridge change, which lets pressurized water escape. Our plumbers see this often in Central Indiana homes and can service, maintain, or repair any brand of purifier or reverse osmosis system. Other causes include a cross‑threaded sump, an over‑tightened housing deforming the seal, a cracked head or bowl, or high inlet pressure driving water past an otherwise good seal. A flattened O‑ring can look fine but won’t hold pressure once flow starts.

Try these quick checks:

  • Turn off water and depressurize the housing before opening.
  • Remove, clean the groove, and lubricate the O‑ring with food‑grade silicone.
  • Reseat the cartridge; hand‑tighten the housing evenly without tools.
  • Inspect the head and bowl for hairline cracks or leaking fittings.

If the leak continues after reseating and lubricating the O‑ring, shut off the feed and call a licensed plumber.

Updated: 2026-09-30

Need help in Fishers, 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.

What Are The Common Problems With A Whole House Water Filter?

Common problems with a whole-house water filter usually stem from overdue media changes, sizing or installation errors, or asking the filter to solve issues it isn’t designed to fix. Whole-home filters improve taste and reduce many contaminants, but they do not remove hardness scale or rust; a water softener is needed for those. Our technicians can start with a free in-home water analysis to match the right solution. We regularly handle these issues for homes around the Columbus area.

Watch for these specific signs:

  • Noticeable pressure drop or slow faucets after the filter stage
  • Cartridges clogging quickly due to high sediment load
  • Chlorine taste or odors returning as carbon media exhausts
  • Leaks or a bypass valve not sealing fully
  • Staining or limescale that persists because hardness/iron needs softening, not filtration
  • A simple gauge before/after the filter helps; a big pressure difference signals it’s time to change media

If you see sudden pressure loss or any active leak, switch the filter to bypass and call a licensed plumber.

Updated: 2026-07-30

Need help in Columbus, IN? Call 317-830-5862 or book online.

How much does a whole house water filter installation cost?

A whole-house water filter installation cost is finalized after an in-home water analysis and site review because price depends on the system type, size, and your home’s plumbing layout. The biggest driver is matching filtration to your actual water quality, since different contaminants and flow needs call for different equipment. Whole-home filters improve taste and reduce chlorine, but they don’t solve scale; hard-water issues may add a softener to the plan. Our team provides testing, recommendations, installation, and service, and we regularly tailor systems for Central Indiana homes. You can start with a Free In-Home Water Analysis before any purchase.

Common cost factors we check on site:

  • Filtration design: single-stage carbon vs multi-stage or RO at point-of-use
  • Flow rate and capacity sizing for your household demand
  • Pre-treatment needs such as softening or iron/sediment removal
  • Plumbing changes: bypass, shutoff valves, drain, and access location

Schedule a water test so we can size the system and give a firm written price.

Updated: 2026-07-09

Need help in Whiteland, 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.

Do Water Filtration Systems Require Regular Maintenance At Home?

Yes—water filtration systems need regular home maintenance to keep water quality, taste, and flow consistent. The most common reason is filter media loading up with sediment, chlorine byproducts, and other captured contaminants. Skipping service can reduce flow, let bad tastes return, or stress valves and housings; a clogged prefilter is often why an RO faucet slows before you notice a flavor change. Our team services systems in the Indianapolis area and often sees cartridge life vary with seasonal water changes. We also offer a free in-home water analysis to pinpoint exact issues before recommending service or equipment.

When to act and what to check:

  • Replace sediment/carbon filters when flow drops, taste changes, or per manufacturer guidance.
  • For RO, have the membrane checked and the storage tank sanitized on a routine basis.
  • Inspect housings, O-rings, and lines for leaks or pressure loss after any filter change.
  • If paired with a softener, keep salt filled and settings calibrated.

If you’re unsure what to change or when, schedule an in-home water test so a technician can set the right maintenance plan.

Updated: 2026-07-16

Need help in Indianapolis, 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.

Can I install a water filter myself safely at home?

Yes, you can safely install a basic water filter at home, but whole-house filters, reverse osmosis (RO) systems, and water softeners are best handled by a licensed plumber. Simple pitcher, faucet-mount, or under-sink cartridge swaps are usually safe if you follow the instructions, while systems that tap into the main line, add a drain connection, or need pressure and sanitation checks can leak or contaminate drinking water if done incorrectly. Our plumbers regularly install and service filtration and RO systems throughout the Needham area. If you want tailored guidance, we start with a Free In-Home Water Analysis to identify what your water actually needs before recommending equipment.

Use these quick checks:

  • DIY is reasonable: pitcher, faucet-mount, or under-sink cartridge with an existing shutoff and no pipe cutting.
  • Call a pro: whole-house filters, RO with a drain saddle/tank, or any job needing PEX/copper cuts or new valves.
  • Before turning water on: support heavy housings, flush cartridges, pressure-check every joint, then recheck an hour later.

If you try DIY, shut off the supply, use food-grade sealant, and sanitize any drinking-water lines before use.

Updated: 2026-08-07

Need help in Needham, IN? Call 317-830-5862 or book online.

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