Top-Rated Tankless Water Heater Installations Experts in Carol Stream, IL

Pro Services LLC

Pro Services LLC

6 years of experience

Emergency services offered

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"This was the only service that provided me with a price over the phone before they came out. All the other services wanted to charge me a fee to just come look at the downspout extension, so I had no idea what kind of charge to expect. Evan was great, showed up on time and kept in communication with me on his arrival time. only took about 20 minutes from start to finish. "

Brenna M on August 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"This was the only service that provided me with a price over the phone before they came out. All the other services wanted to charge me a fee to just come look at the downspout extension, so I had no idea what kind of charge to expect. Evan was great, showed up on time and kept in communication with me on his arrival time. only took about 20 minutes from start to finish. "

Brenna M on August 2025

White Star Sewer and Drain Services

White Star Sewer and Drain Services

Customers say: Quick response

Recommended by 90% of Angi customers

4 years of experience

At White Star Sewer and Drain Services, we are a small, local plumbing company that believes in honest work and reliable service you can count on. Whether it’s fixing leaks, installing new fixtures, or tackling bigger plumbing jobs, we’re here to get it done right the first time. $75 travel fee for quotes/consultations, Fee is waived if you move forward with the work . All our jobs come with a one-year guarantee on parts and labor (just keep in mind it’s void if the work is altered or abused). We are NOT responsible for framing, drywall, painting, flooring/tiling, or any plumbing issues outside of the services we provide. We take pride in helping our community one home at a time, with fair prices, friendly service, and plumbing you can trust.

"Mike & his assistant were very professional. They arrived promptly, assessed the job, aquired needed materials and then completed the installation of new toilets in vintage bathrooms efficiently. Tenants are very satisfied and appreciated the concern shown for their possessions in the bathrooms that had to be moved and for the cleanliness of the rooms when the job was completed."

Lynne K on December 2025

At White Star Sewer and Drain Services, we are a small, local plumbing company that believes in honest work and reliable service you can count on. Whether it’s fixing leaks, installing new fixtures, or tackling bigger plumbing jobs, we’re here to get it done right the first time. $75 travel fee for quotes/consultations, Fee is waived if you move forward with the work . All our jobs come with a one-year guarantee on parts and labor (just keep in mind it’s void if the work is altered or abused). We are NOT responsible for framing, drywall, painting, flooring/tiling, or any plumbing issues outside of the services we provide. We take pride in helping our community one home at a time, with fair prices, friendly service, and plumbing you can trust.

"Mike & his assistant were very professional. They arrived promptly, assessed the job, aquired needed materials and then completed the installation of new toilets in vintage bathrooms efficiently. Tenants are very satisfied and appreciated the concern shown for their possessions in the bathrooms that had to be moved and for the cleanliness of the rooms when the job was completed."

Lynne K on December 2025

Thompson's Plumbing & Heating

Thompson's Plumbing & Heating

43 years of experience

Free onsite estimate

Don't Spend Your Weekend Fiddling With Your Plumbing Schedule a leaky faucet or sump pump repair in Geneva, Batavia, St. Charles & Elburn, IL Unclogging a drain or fixing a leaky pipe may seem easy, but it's often more frustrating than expected. Thompson's Plumbing & Heating offers a variety of plumbing services, including leaky faucet repair and sump pump repair, in Geneva, Batavia, St. Charles & Elburn, IL. We can fix your plumbing problem quickly and effectively, saving you time and energy. Set up an appointment with our team of professional plumbers today.

"Service of our plumbing needs always done promptly and professionally. Installation of two new water heaters and clean up completed on time. "

Dennis B on October 2025

Don't Spend Your Weekend Fiddling With Your Plumbing Schedule a leaky faucet or sump pump repair in Geneva, Batavia, St. Charles & Elburn, IL Unclogging a drain or fixing a leaky pipe may seem easy, but it's often more frustrating than expected. Thompson's Plumbing & Heating offers a variety of plumbing services, including leaky faucet repair and sump pump repair, in Geneva, Batavia, St. Charles & Elburn, IL. We can fix your plumbing problem quickly and effectively, saving you time and energy. Set up an appointment with our team of professional plumbers today.

"Service of our plumbing needs always done promptly and professionally. Installation of two new water heaters and clean up completed on time. "

Dennis B on October 2025

Lorenz Plumbing LLC

Lorenz Plumbing LLC

Customers say: Quick response

12 local quotes requested

6 years of experience

Patrick started plumbing in 2000 and opened Lorenz Plumbing in 2019. With over 25 years of experience, we are your local, go-to, plumbing company. Our goal is to provide, professional, honest, and reliable service. We want to give you the best service for a fair price. Check us out on Google for more reviews from our customers.

"I originally spoke with the owner Patrick Lorenz,, who gave me an idea how we should approach this problem. I thought I needed a tankless hot water heater, which is very expensive but he gave me an alternative that I’m happy with. I had a tankless hot water heater in the past and that’s all I knew about getting instant hot water. The system he set up for me is just as good and cost pennies on the dollar compared to tankless. Might not be good for everyone, but it’s served our purpose. And I’m 100% satisfied I would highly recommend Lorenz Plumbing to anyone looking for a professional job and save a few dollars."

Bruce H on November 2025

Patrick started plumbing in 2000 and opened Lorenz Plumbing in 2019. With over 25 years of experience, we are your local, go-to, plumbing company. Our goal is to provide, professional, honest, and reliable service. We want to give you the best service for a fair price. Check us out on Google for more reviews from our customers.

"I originally spoke with the owner Patrick Lorenz,, who gave me an idea how we should approach this problem. I thought I needed a tankless hot water heater, which is very expensive but he gave me an alternative that I’m happy with. I had a tankless hot water heater in the past and that’s all I knew about getting instant hot water. The system he set up for me is just as good and cost pennies on the dollar compared to tankless. Might not be good for everyone, but it’s served our purpose. And I’m 100% satisfied I would highly recommend Lorenz Plumbing to anyone looking for a professional job and save a few dollars."

Bruce H on November 2025

Duane Blanton Plumbing, Sewer & Drainage Inc. - Plumbing

Duane Blanton Plumbing, Sewer & Drainage Inc. - Plumbing

104 local quotes requested

37 years of experience

Duane Blanton Plumbing, Sewer, Heating & Cooling has been serving Chicagoland and surrounding areas since 1988. Over 30+ years, we've developed the kind of service that surpasses expectations: a motivated team built on providing full-service support for your home, be it repair, maintenance or install. Our team licensed and certified technicians will guide you through every step of the process, from the initial phone call to service completion. This kind of reliability, transparency, professionalism and customer involvement allows us to develop long-lasting relationships with our clientele.

"Danny D, Jerry, and Adam, y’all are stuck with me as a client lol. They provided excellent service, funny, kind, accommodating and explained all that they were doing and all of our goals in maintaining my plumbing. They went above and beyond and I know in the future this is my go to team for our plumbing needs. They showed up last year and this year and just taught me so much in maintaining my home system and their expertise!!!"

Trinidad L on March 2025

Duane Blanton Plumbing, Sewer, Heating & Cooling has been serving Chicagoland and surrounding areas since 1988. Over 30+ years, we've developed the kind of service that surpasses expectations: a motivated team built on providing full-service support for your home, be it repair, maintenance or install. Our team licensed and certified technicians will guide you through every step of the process, from the initial phone call to service completion. This kind of reliability, transparency, professionalism and customer involvement allows us to develop long-lasting relationships with our clientele.

"Danny D, Jerry, and Adam, y’all are stuck with me as a client lol. They provided excellent service, funny, kind, accommodating and explained all that they were doing and all of our goals in maintaining my plumbing. They went above and beyond and I know in the future this is my go to team for our plumbing needs. They showed up last year and this year and just taught me so much in maintaining my home system and their expertise!!!"

Trinidad L on March 2025

R.A. Mechanical, Inc.

R.A. Mechanical, Inc.

Customers say: True professional

Recommended by 94% of Angi customers

267 local quotes requested

We are dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"My 21 year old Gas Water Heater finally has stopped working and I started getting quotes for the replacement. I contacted 4-5 companies via Angi and 3 more from Google. I texted pictures of my old Water Heater to potential contractors and had multiple phone and text conversations. Rob, the owner of R.A. Plumbing & Mechanical, offered me a competitive, but not the lowest price, but our 2 phone calls and his detailed explanation and answering my questions - that's what convinced me to give this project to him and his team. Rob explained me the difference between brands, models, and tank sizes, discussed a tankless solution, and offered to do the work on the same day, which was important for me on December 1st in Chicago. Rob emailed me the detailed estimate with a convenient way to accept it electronically and after I accepted it, he sent the team who did a great job. I highly recommend R.A. Plumbing & Mechanical and personally Rob for any plumbing projects you may have."

Al B on December 2025

We are dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"My 21 year old Gas Water Heater finally has stopped working and I started getting quotes for the replacement. I contacted 4-5 companies via Angi and 3 more from Google. I texted pictures of my old Water Heater to potential contractors and had multiple phone and text conversations. Rob, the owner of R.A. Plumbing & Mechanical, offered me a competitive, but not the lowest price, but our 2 phone calls and his detailed explanation and answering my questions - that's what convinced me to give this project to him and his team. Rob explained me the difference between brands, models, and tank sizes, discussed a tankless solution, and offered to do the work on the same day, which was important for me on December 1st in Chicago. Rob emailed me the detailed estimate with a convenient way to accept it electronically and after I accepted it, he sent the team who did a great job. I highly recommend R.A. Plumbing & Mechanical and personally Rob for any plumbing projects you may have."

Al B on December 2025

Precision Today Plumbing Heating Cooling Electrical

Precision Today Plumbing Heating Cooling Electrical

Customers say: Quick response

Recommended by 93% of Angi customers

11 local quotes requested

If there's water flowing through it, or water not flowing at all, we can handle it! We specialize in providing a full spectrum of services from pinpoint plumbing and drain diagnostics, maitenance, cleanings, repairs and new installations! We will not begin any work until you approve options upfront and in writing! All of our technicians are background checked and ready to serve you! Looking forward to meeting you soon! We jump on it TODAY! Precision Today, the name Chicagoland recognizes and count on for all their home plumbing, drain, sewer, heating, cooling and electrical needs for fast, reliable service you can count on! Serving all of Chicagoland for over 97 years.

"Dean was amazing - Very knowledgeable, detailed and provided excellent customer service. He went above and beyond and did the install same day. Highly recommend!!"

Gigi A on February 2023

If there's water flowing through it, or water not flowing at all, we can handle it! We specialize in providing a full spectrum of services from pinpoint plumbing and drain diagnostics, maitenance, cleanings, repairs and new installations! We will not begin any work until you approve options upfront and in writing! All of our technicians are background checked and ready to serve you! Looking forward to meeting you soon! We jump on it TODAY! Precision Today, the name Chicagoland recognizes and count on for all their home plumbing, drain, sewer, heating, cooling and electrical needs for fast, reliable service you can count on! Serving all of Chicagoland for over 97 years.

"Dean was amazing - Very knowledgeable, detailed and provided excellent customer service. He went above and beyond and did the install same day. Highly recommend!!"

Gigi A on February 2023

Copper Sky Plumbing

Copper Sky Plumbing

Customers say: Quick response

Recommended by 94% of Angi customers

48 local quotes requested

Family owned and operated. Owner, David Torres is a registered Master Plumber. Licensed, Bonded & Insured. 20 years of experience. Don't get flooded by plumbing problems! We can fix it. *FREE PLUMBING INSPECTION INCLUDED WITH ANY SERVICE*~ Just mention this ad! Copper Sky Plumbing addresses each job with attention to detail and excellent customer service. You can be confident in a company that is honest and fair with the experience to get the job done right the first time. Accepting cash, check or PayPal.

"We had our water softener replaced and it went so smoothly. David and his son did great work and were very flexible with our schedule!"

Matthew C on November 2025

Family owned and operated. Owner, David Torres is a registered Master Plumber. Licensed, Bonded & Insured. 20 years of experience. Don't get flooded by plumbing problems! We can fix it. *FREE PLUMBING INSPECTION INCLUDED WITH ANY SERVICE*~ Just mention this ad! Copper Sky Plumbing addresses each job with attention to detail and excellent customer service. You can be confident in a company that is honest and fair with the experience to get the job done right the first time. Accepting cash, check or PayPal.

"We had our water softener replaced and it went so smoothly. David and his son did great work and were very flexible with our schedule!"

Matthew C on November 2025

Aqua Knight Plumbing Co.

Aqua Knight Plumbing Co.

Customers say: Quick response

144 local quotes requested

2 years of experience

With 24 years of experience we are dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your plumbing needs. We specialize in a variety of residential and commercial services from water heater installations, sewer main installations, sump pump installations, repairs and so much more! We take pride in the attention to detail put into each of the projects were involved with. Were known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. All Work Is Warrantied - Inquire Within Military Veteran and First Responders Discounts Available - Inquire Within Deposits May Be Required - Inquire Within Accepts Cash, Checks & Major Credit Cards Financing Options Are Available - Inquire Within 24/7 Emergency Services Available aquaknightplumbing.com

"Great experience with Aqua Knight. Walked through the estimate on Saturday. Came first thing Monday and knocked it out. Would recommend them for anyone needing a new hot water heater. "

Sean F on November 2025

With 24 years of experience we are dedicated to providing our clients with the very best in service, installation, and repairs for all phases of your plumbing needs. We specialize in a variety of residential and commercial services from water heater installations, sewer main installations, sump pump installations, repairs and so much more! We take pride in the attention to detail put into each of the projects were involved with. Were known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction. All Work Is Warrantied - Inquire Within Military Veteran and First Responders Discounts Available - Inquire Within Deposits May Be Required - Inquire Within Accepts Cash, Checks & Major Credit Cards Financing Options Are Available - Inquire Within 24/7 Emergency Services Available aquaknightplumbing.com

"Great experience with Aqua Knight. Walked through the estimate on Saturday. Came first thing Monday and knocked it out. Would recommend them for anyone needing a new hot water heater. "

Sean F on November 2025