Serving Chicagoland Since 1993

Tankless Water Heaters in Mokena, IL

Endless hot water and more space in the utility room. We install, repair and maintain tankless water heaters and tell you honestly whether one makes sense for your home. From our office on Jodi Road.

Plumber working on the copper water lines of a wall-mounted tankless water heater in a basement
The Basics

How a Tankless Water Heater Works

A tankless heater heats water only when a tap opens. Water flows through a heat exchanger, a burner or element fires and hot water comes out as long as you need it. There's no tank to keep hot all day, so it uses less energy when you're not using water. The trade-off: it has a limit on how much hot water it can make at once, so it has to be sized for your busiest moment.

Compare

Tank vs. Tankless for Mokena Homes

How they compare:

TankTankless
Hot water supplyLimited to the tankContinuous, up to its flow rate
Typical lifeAbout 8 to 12 yearsOften longer with maintenance
SpaceA tank on the floorA unit on the wall
MaintenanceYearly flushYearly descaling
Local Knowledge

Is Tankless Right for Your Mokena Home?

Many Mokena homes are a good fit, with a few things to check first.

Gas Line Size

Gas tankless units need a lot of gas at once. The line from the meter may need to be upsized.

Venting

Tankless units need their own venting, usually through the side wall.

Busy Mornings

We size the unit so two showers and the dishwasher can run at once.

Descaling Matters

Minerals build up in the heat exchanger. A yearly flush keeps it running right.

The J. Blanton Difference

What Happens When You Call J. Blanton

Honest advice first.

1. Check the Gas and Venting

Before we recommend a unit.

2. Size It for Your Peak

Not just the average day.

3. Flat Price, Clean Install

Approved before we start.

773-724-9272
J. Blanton plumber in shoe covers on a home's front steps with a sewer camera
Pricing

What Affects the Price of a Tankless Install

The gas line and venting are the main variables, along with treatment if the home is on well water. We check everything first and quote one flat price.

Customer Stories

Tankless Water Heater Reviews

4.8 stars from 176 Google reviews for our Mokena office.

"Christian serviced out tankless water heater. Excellent service highly recommend!"

Brian Bilicki
Verified Customer

"Christian did a great job serving our tankless water heater!!"

Robert Ritten
Verified Customer

"Christian was very thorough and friendly assisting with my tankless water heater maintenance."

Deanna Serpico
Verified Customer
Got Questions?

Tankless Questions From Mokena Homeowners

Often scale, a flow issue or too much demand.

Often scale in the heat exchanger, a dirty inlet screen or more fixtures running than the unit can handle. Descaling fixes the first two.

About once a year.

About once a year for most homes. Homes on well water may need it more often.

Yes.

Yes. We diagnose error codes, clean flame sensors and inlet screens, descale heat exchangers and replace failed parts.

Usually, with gas and venting changes.

Usually. Most switches need a larger gas line and new venting. We check both before giving you a price.

Often, if it's sized right.

Often. A properly sized unit can run two showers and the dishwasher at once. We'll look at your gas line and venting before you decide.

Yes, with treatment.

Yes, but well water often needs softening or filtering to protect the heat exchanger.

It depends on the unit and the gas and venting work. You'll approve a flat price first.

It depends on the unit size and how much gas line and venting work is needed. You'll approve a flat-rate price before we start.

Annual Protection Plan

Join the No Drip Club

Most plumbing problems start small. The No Drip Club brings a J. Blanton plumber to your home for regular maintenance, so small issues get caught before they turn into big repairs.

  • Two Free Professional Maintenance Visits per Year
  • 10% Discount on All General Plumbing & Sewer Services
  • 5-Year Parts and Labor Warranty on Approved Projects
  • VIP Priority Scheduling Status (Skip the Queue)
Learn More About the No Drip Club
No Drip Club mascot: an illustrated J. Blanton plumber holding a red pipe wrench
What We Fix

Plumbing Services in Mokena

J. Blanton plumbers working a sewer lining machine connected to the cleanout at a residential sewer repair

Sewer Repair

Cracked or sagging sewer lines, roots and repeat backups in the line from your house to the street.

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Plumber feeding a drain cleaning cable into an outdoor drain pit to clear a clogged line

Drain Cleaning

Slow or backed-up drains and main lines, rodded clear and checked on camera.

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J. Blanton plumber working on the wiring of a basement sump pump pit

Sump & Ejector Pumps

Repair, replacement and battery backups for the pumps that keep your basement dry and drain a basement bathroom.

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J. Blanton plumber checking the controls at the base of a basement water heater

Water Heaters

Repair and replacement for tank and tankless water heaters that leak, make noise or run out of hot water too fast.

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Interior wall with bubbling, cracked paint and water stains above the baseboard, a sign of a hidden leak behind the wall

Leak Repair

Hidden leaks behind walls and ceilings, leaking water lines and outdoor spigots.

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J. Blanton plumber leaning over an open toilet tank to check the fill valve during a toilet repair

Toilets & Showers

Running toilets, leaky shower valves and new fixture installs.

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Local Office, 24/7 Phone

Ready to Talk Tankless?

Our Mokena office is at 19027 S Jodi Rd Unit H-1B, and our phone line is open 24/7.

We also serve Frankfort, New Lenox, Tinley Park, Orland Park, Homer Glen, Frankfort Square, Lockport and more.

Call Now: 773-724-9272
Need a Plumber?Call our Mokena Office
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