Endless Hot Water: Tankless Water Heater Installation in Wheaton, Illinois & DuPage County

(630) 346-1389

Emergency Plumbing Service

Water heater emergency? Call now: (630) 346-1389

Tankless Water Heater Services for DuPage County area residents

lincensed, bonded, insured, Experienced & Professional Plumbers in DuPage County, Illinois. Local residents choose Principle Plumbing for:

Five Star Rating on Google

Same Day Service

Transparent, Upfront Pricing

Emergency Calls: No After-Hours or Weekend Fees

Licensed, Insured & Bonded

Same Day Installations, 7 Days a Week

Comprehensive Warranties

Top-Quality Products, Including Moen & Delta

25+ Year Local Plumbing Experience

Principle Plumbing Will Fix Your Tankless Water Heater Issues, Same Day

Overview of Services:

Service Fee: $89 (waived with repair)

Up Front Pricing: We Have Fair Estimates & Pricing

Typical Completion Time: 30 minutes to 3 hours

Guarentee on Repairs: See our Workmanship Guarentee

Founded in 2011, Principle Plumbing - Serving Addison, Aurora, Bartlett, Bensenville, Bloomingdale, Bolingbrook, Burr Ridge, Carol Stream, Clarendon Hills, Darien, Downers Grove, Elk Grove Village, Elmhurst, Eola, Glen Ellyn, Glendale Heights, Hanover Park, Hinsdale, Itasca, Lisle, Lombard, Naperville, Oak Brook, Oakbrook Terrace, Roselle, Schaumburg, Villa Park, Warrenville, West Chicago, Westmont, Wheaton, Willowbrook, Winfield, Wood Dale, Woodridge in DuPage County, Illinois • Friendly Reliable Service • (630) 346-1389

The Principle Plumbing Difference

What Makes Principle Plumbing Different

We have years of experience providing the best plumbing solutions in the Chicagoland area.

Licensed Plumbers

Our plumbers are highly-trained, lincensed, bonded, insured experienced pros with an eye for quality and a heart for customer service

Qualified Manufacturer Installations

We are qualified in top brands like Bradford White, Navien, Delta, Kohler and many others, to give expert service for all of your plumbing systems

Neighborhood Roots

As a locally-owned and operated company, we love the DuPage County and Chicago area that we call home. We bring personalized care and friendly service to every job

Same-Day Service

We provide Same-Day service throughout DuPage County. We're able to provide speedy service your home needs, often within a few hours

Comprehensive Tankless Water Heater Services

Expert Installation, Maintenance & Repair for All Major Brands

Expert Tankless Water Heater Installation

A tankless water heater is a sophisticated appliance that requires precise installation by a Our licensed, insured & bonded professional. Our process ensures your system is safe, efficient, and perfectly suited to your home.

At Principle Plumbing, we handle every aspect of installation, from proper sizing to gas line upgrades and venting, ensuring your new system operates at peak efficiency.

Our Installation Process Includes:

  • Proper Sizing: We perform a detailed assessment of your home's needs, considering the number of bathrooms, appliances, and your family's hot water usage to determine the correct size (gallons per minute or GPM) for your unit.
  • Gas Line Upgrades: Tankless heaters require a larger gas line (typically 3/4 inch) than traditional tanks. We are fully licensed, insured & bonded to perform any necessary gas pipe upgrades safely and to code.
  • Venting Installation: Proper venting is critical for safety and efficiency. We install the correct type of venting (PVC for high-efficiency condensing units, stainless steel for others) to ensure your system operates perfectly.
  • Plumbing & Electrical: We handle all connections, including installing isolation valves for easy future maintenance and ensuring any required electrical circuits are correctly installed.

Trust Principle Plumbing for professional tankless water heater installation that's done right the first time.

Tankless Water Heater Maintenance & Repair

Naperville's hard water can cause mineral (scale) buildup inside a tankless heater over time, reducing its efficiency and lifespan. Regular maintenance is crucial to protect your investment.

Our licensed, insured & bonded have the diagnostic tools and experience to service all major brands, keeping your system running efficiently for years to come.

ANNUAL MAINTENANCE SERVICE INCLUDES:

  • System Descaling (Flushing): We circulate a special solution through the unit to dissolve and remove mineral buildup from the heat exchanger, restoring its performance.
  • Filter Cleaning: We clean the inlet water filter to ensure proper flow and prevent damage to the unit.
  • Full System Inspection: We check the burner, venting, and all connections for safety and proper operation.

REPAIR SERVICES:

If your unit displays an error code, isn't producing enough hot water, or is making unusual noises, Our licensed, insured & bonded can help. We quickly identify the issue and perform the necessary repairs to restore your hot water.

BRANDS WE SERVICE:

We are Our licensed, insured & bonded to install and service all major brands including Navien, Rinnai, Rheem, Noritz, and more. Our technicians stay up-to-date with the latest technology and best practices.

With Principle Plumbing, you're choosing experienced professionals who specialize in tankless water heating systems. Protect your investment with expert care.

What is a Tankless Water Heater & How Does It Work?

Unlike a traditional water heater that stores and constantly reheats 40-50 gallons of water in a bulky tank, a tankless water heater is a compact, on-demand system. It works instantly, exactly when you need it.

Principle Plumbing tankless water heater installation

Will I ever run out of hot water with a tankless system? Never again! Tankless water heaters provide endless hot water on demand. You can run the dishwasher, do laundry, and have multiple family members shower back-to-back without interruption. Principle Plumbing specializes in properly sizing tankless systems to ensure your we bring years of experience home has unlimited hot water whenever you need it.

How much can I save with a tankless water heater? By only heating water when you need it, you can reduce your water heating costs by up to 40%. This is a substantial saving on your monthly utility bills. Our team at Principle Plumbing provides detailed energy savings calculations during your consultation, showing you exactly how much you'll save over the life of your new tankless system.

What tankless water heater brands do you install? Principle Plumbing is a certified installer of premium tankless water heater brands including Navien, Rinnai, and Noritz. These industry-leading manufacturers offer high-efficiency condensing units with up to 0.97 energy factor ratings, smart recirculation technology for instant hot water, and comprehensive warranty coverage. Our we bring years of experience technicians are factory-trained to ensure your tankless installation meets manufacturer specifications.

How much space does a tankless water heater take up? These compact units are mounted on a wall, freeing up valuable floor space in your utility room or basement that was once occupied by a bulky 40-50 gallon tank. Principle Plumbing installs tankless units in optimal locations to maximize your home's usable space while ensuring easy access for future maintenance.

How long does a tankless water heater last? Tankless water heaters have a lifespan of 20+ years, nearly double that of a traditional tank heater (10-12 years). Principle Plumbing installs premium brands like Navien and Rinnai, and we provide annual descaling maintenance to ensure your tankless system lasts for decades.

Is tankless water cleaner than tank water? Yes! Because water isn't sitting and collecting sediment in a tank, you get a continuous supply of fresh, clean hot water. Principle Plumbing recommends tankless systems for homeowners concerned about water quality, especially in areas with hard water like we bring years of experience.

Can my home support a tankless water heater? Almost any home can! We install both natural gas and propane models, providing the highest flow rates for larger we bring years of experience homes. Principle Plumbing handles all necessary gas line upgrades and venting installation to ensure your new tankless system operates safely and efficiently for years to come.

Have An Emergency? Call Us For Immediate Service!

Tankless Water Heater Installation & Service

Experience endless hot water, significant energy savings, and a longer-lasting system designed for the modern home. We are Aurora, Bloomingdale, Carol Stream, Elmhurst, Glen Ellyn, Glendale Heights, Lisle, Lombard, Naperville, Oak Brook, Oakbrook Terrace, Warrenville, West Chicago, Wheaton's Our licensed, insured & bonded experts in the installation, maintenance, and repair of on-demand tankless water heating systems.

Unlike traditional water heaters that store and constantly reheat 40-50 gallons of water, tankless systems heat water instantly on-demand. When you turn on a tap, a sensor detects the flow, the burner ignites, and water is heated as it passes through the heat exchanger, delivering instant hot water at your set temperature.

Upgrading to a tankless system means never running out of hot water again. Run the dishwasher, do laundry, and have multiple family members shower back-to-back without interruption while reducing water heating costs by up to 40% through on-demand heating.

Tankless units are compact and wall-mounted, freeing up valuable floor space in your utility room or basement. With a lifespan of 20+ years—nearly double that of traditional tanks—you get cleaner, fresher water without sediment buildup.

A proper tankless installation requires precise sizing based on your home's needs, including number of bathrooms and hot water usage. We perform detailed assessments to determine the correct GPM (gallons per minute) rating for your unit, ensuring optimal performance.

Tankless water heater installation

Tankless heaters require a larger gas line (typically 3/4 inch) than traditional tanks. We are fully lincensed, bonded, insured & experienced to perform any necessary gas pipe upgrades safely and to code, ensuring your system operates at peak efficiency.

Proper venting is critical for safety and efficiency. We install the correct type of venting—PVC for high-efficiency condensing units like Navien, stainless steel for others—ensuring your system operates perfectly and meets all safety codes.

we bring years of experience hard water can cause mineral buildup inside tankless heaters over time. Our annual maintenance service includes system descaling (flushing) with special solutions, filter cleaning, and full inspection of burner, venting, and connections for continued peak performance.

We specialize in installing the industry's best brands including Navien—renowned for ultra-high efficiency condensing technology and stainless-steel heat exchangers—and Rinnai, a pioneer in tankless engineering known for exceptional durability and performance.

Ready for Endless Hot Water and Lower Energy Bills?

Make the switch to a more efficient, comfortable, and reliable hot water solution for your home. Our licensed, insured & bonded provide upfront, all-inclusive pricing with in home estimates covering the entire job—the unit, materials, labor, and any necessary upgrades—with no hidden fees.

5 Stars!

"Fast, professional service! My kitchen faucet was fixed in no time."

Sarah M., Naperville, IL

Reviews From Our Customers

Here's What Our DuPage County Area Neighbors Are Saying About Principle Plumbing Technicians and Services

Dolores B.

Google

I will definitely use Ben again. In fact he came out promptly to solve one problem and stayed longer to fix a problem i had mentioned. Ben is the Best and I definitely recommend Principle Plumbing, Inc

Amy R.

Google

Great communication, knowledgeable, reliable! Principle Plumbing has done a lot of work for me, from big to small. Trustworthy.

Caitlin

Google

I highly recommend Principle Plumbing. Honest, reasonable and timely service. Ben was incredibly helpful and courteous. He took his time to explain the issues with my kitchen plumbing and to provide helpful and reasonably priced solutions. We will definitely be using his services again.

Judy B.

Facebook

Principle Plumbing installed a new toilet in my half bath. He was efficient, personable and left the area spotless. Would definitely call them again.

Jim F.

Google

Principle Plumbing was able to diagnose the problem on the phone and bring a replacement with him. He was quick, efficient, and pleasant to work with. He'll be the first call for my next plumbing project.

Craig U.

Google

So fast, so reliable. Been using Principle Plumbing for years and they always provide excellent service. Highly recommend!!

Joseph B.

Google

Their plumbing staff was one of the most friendly people I have had the pleasure of meeting. We had an urgent issue and reached out. We were unable to use water, and the situation was dire. He fit us in at short notice, came out early and fixed the issue for us promptly, even giving us options on how to approach the problem. Prices were affordable, services were impeccable. 10/10

Making Homes Better Across All of DuPage County

Principle Plumbing Technicians Serve Their Neighbors. Connect with our local teams.

DuPage County service area map

Let's get in touch, contact Principle Plumbing today

Contact our team of Plumbing experts today for a consultation on your home, residential or commercial property

Phone

(630) 346-1389

Emergency Phone

(630) 346-1389

Office Location

Wheaton, Illinois

Business Hours

Monday6:00 AM - 9:30 PM
Tuesday6:00 AM - 9:30 PM
Wednesday6:00 AM - 9:30 PM
Thursday6:00 AM - 9:30 PM
Friday6:00 AM - 9:30 PM
Saturday6:00 AM - 9:30 PM

Service Areas

Addison, Aurora, Bartlett, Bensenville, Bloomingdale, Bolingbrook, Burr Ridge, Carol Stream, Clarendon Hills, Darien, Downers Grove, Elk Grove Village, Elmhurst, Eola, Glen Ellyn, Glendale Heights, Hanover Park, Hinsdale, Itasca, Lisle, Lombard, Naperville, Oak Brook, Oakbrook Terrace, Roselle, Schaumburg, Villa Park, Warrenville, West Chicago, Westmont, Wheaton, Willowbrook, Winfield, Wood Dale, Woodridge Illinois, DuPage County Illinois, Cook County Illinois, Chicago, Illinois and the Greator Chicagoland area

Send Us A Message!

Or call us directly at (630) 346-1389