24/7 emergency service Office Mon to Fri, 8 AM to 5 PM
Specials Save up to $200 4.8 · 53 Google reviews (815) 609-3150
Tankless Water Heater Installation in Plainfield, IL

Family-owned · Plainfield Local

4.8 from 53Google reviews

Tankless Water Heater Installation in Plainfield, IL

On-demand hot water for Plainfield homes, installed by licensed pros with 24 years in the trade.

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unlimited hot water on demand work, professional service in Plainfield, IL

Plainfield Plumber for Tankless Water Heater Installation

Leto Plumbing & Heating, Inc. handles tankless water heater installation in Plainfield, IL, and has installed tankless water heaters since 2002. For most homes running an aging tank that fights hard water every year, the switch is worth it. If a repair on your existing water heater makes more sense, we'll say so. Ask about our $200-off coupon on tankless water heater installations when you call (815) 609-3150.

Plainfield's water is moderately hard, about 6.3 grains per gallon, according to the Village of Plainfield. A tankless unit is far easier to descale annually than a corroded 40-gallon tank, and it doesn't fail catastrophically when an anode rod is neglected. We hold 4.8 stars across 53 Google reviews.

Why Plainfield Homeowners Switch to Tankless

Unlimited Hot Water on Demand

Water heats only when the tap is on. No tank to run out, no 30-minute recovery wait when several showers run in the morning.

Less Energy Used

You're not keeping 40 gallons hot around the clock, so the unit only fires when a tap is open.

Longer Equipment Lifespan

A well-maintained tankless heater can last 20 years or more. Tanks fighting hard water are usually replaced well before the 12-year mark.

Compact Footprint

It mounts on the wall and frees up floor space in a utility room that doubles as storage.

Our Process

How Leto Installs a Tankless Water Heater in Plainfield

Assessment and Unit Selection

We check water pressure, plumbing layout, gas or electrical supply and peak demand, then recommend a unit. No guessing on size.

Full Installation to Code

Licensed professionals remove the old system, install and connect the new unit, and meet current Village of Plainfield permit and code requirements. We pull permits where required.

Testing, Demonstration, and Ongoing Support

We test the system, walk you through the controls and give you a maintenance schedule. Our hot water heater maintenance service keeps it running efficiently.

Hard Water in Plainfield and What It Does to Your Water Heater

Hard water forms scale inside any water heater. In a tank it settles at the bottom, trapping heat and burning out the element. In a tankless unit it coats the heat exchanger, which is designed to be flushed annually. If your tank is rumbling, producing lukewarm water or leaking at the base, a flush alone won't save it. Our water heater replacement service covers removal and installation, and we'll tell you plainly if a repair is still viable.
tankless installation work, professional service in Plainfield, IL

Tank vs. Tankless: The Honest Comparison for Plainfield Homes

Is a tankless water heater worth it if my current tank unit still works?
If your tank is under eight years old with no corrosion or sediment problems, a repair or flush is probably the right call. If it's older and has been fighting hard water since installation, the math usually favors tankless. The energy savings over a 20-year tankless lifespan add up.
What permits are required for tankless water heater installation in Plainfield?
The Village of Plainfield requires permits for water heater installations, and the work must meet current plumbing code. We handle the permit process as part of the installation. Skipping the permit creates liability for the homeowner and can void equipment warranties.
How long does a tankless water heater installation take in Plainfield?
Most installations are done in a single day. A gas line upgrade or extra venting adds time, but we identify those needs during the initial assessment, not halfway through the job. We schedule installations around your availability and show up on time.
Can Leto Plumbing service my existing tankless water heater if I didn't install it?
Yes. We service tankless units no matter who installed them. Annual descaling, pressure checks and heat exchanger inspection are part of our hot water heater maintenance service. If the unit is beyond service, we'll tell you honestly and quote a replacement at the same visit.

Financing Available

Easy Payments on Tankless Installations for Plainfield Homeowners

A tankless water heater is a long-term investment. We make it accessible.

Easy payment and low financing are available on tankless installations, plus a $200-off coupon on tankless installations and a free programmable thermostat with qualifying heating system work.
Financing options available on tankless installations
Low monthly payments, no large upfront burden
$200 off tankless water heater installations
Ask about this coupon when you call
Free estimates before any work begins
Know what you're deciding before you commit
Flexible scheduling for Plainfield homeowners
We work around your calendar, not ours
Call the family (815) 609-3150

Straight from Google

What Plainfield Customers Say

4.853 verified Google reviews
Chris gave us EXCELLENT service! Focused on the plumbing issue and walked us thru what all he did! Polite and answered all of our questions!
Kathy WendellSep 2026 · Google
Written on behalf of my mom Annie: I am very satisfied with Chris Leto's service. He addressed the issue quickly and professionally. Charged a fair price.
Alvin KFeb 2026 · Google
In February of 2026 I used Leto Plumbing & Heating on two occasions. First for an emergency after hours weekend call when my sump pump line was frozen during our recent sub-zero weather. The second was a routine maintenance call to flush my hot water heaters. Both times the individuals that came out were pros who were friendly, knowledgeable and got the job done right the first time. Would highly recommend!
Craig LattoFeb 2026 · Google
Spectacular service! On time ✔️ Fast troubleshooting ✔️ Explained the problem clearly ✔️ Fixed repair in less than an hour ✔️ Fur babies approved ✔️ Good human being ✔️ Father son family owned ✔️ My go to for all HVAC problems ✔️
DeAnn CarringtonJan 2026 · Google
Leto Plumbing is #1 for Plumbing Services! Chris did a great job fixing our problem. They are prompt, courtesy and fair priced!! ⭐️⭐️⭐️⭐️⭐️
Dave BernholdtMay 2026 · Google
Open clock under sink. Very professional service. Good result. Reasonable price.
Simon SongFeb 2026 · Google
Leto Plumbing has been servicing the plumbing and HVAC in our homes for many years. Rick and Chris, father and son, are amazing in every way. They are reliable, neat, courteous, and knowledgeable in all areas of plumbing and HVAC. They go out of their way to rush out to our home for needed repairs and new work. They may not be “cheap”, but you can rest easy that their work is top quality and will give you peace of mind. TFK St. Charles
Ted KawczynskiFeb 2026 · Google
Very happy with the service received by Leto plumbing. Starting with phone call made, very nice and was able to get us scheduled next day. Chris, technician, was earlier than originally expected (which was great), he explained everything, was very courteous and timely. Extremely happy with service provided and will be calling Leto for any future needs.
Christy MundyDec 2025 · Google
Read all 53 reviews

Schedule Your Tankless Installation in Plainfield

Serving Will County homeowners since 2002.

  • ★ 4.8 on Google
  • BBB A+
  • Licensed & insured
24/7 emergency service (815) 609-3150
Request an estimate Easy payments & low financing

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By submitting this form you agree that we may contact you about your request and share your name and email address with partner companies for email marketing. We never share your mobile number or text message consent with third parties or affiliates for marketing or promotional purposes.