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Find Tankless water heater installers in Oak Lawn

Avatar for Lorenz Plumbing LLC

Lorenz Plumbing LLC

5.00(
16
)
Approved Pro

Lorenz Plumbing LLC

5.00(
16
)
Approved Pro
Super Service Award
Customers say: Quick response
13 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


United Sewer and Drain Corp.

4.78(
48
)
Approved Pro

United Sewer and Drain Corp.

4.78(
48
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
26 local quotes requested

Welcome to United Sewer and Drain Corp., We pride our company on reliability, great communication, integrity and quality work. We are experts in plumbing and will do our best to keep you as educated as we can on your task or project. We look forward to working with you.

"They came after calling twice, once they came, they were professional !"

Rafy A on July 2025

Welcome to United Sewer and Drain Corp., We pride our company on reliability, great communication, integrity and quality work. We are experts in plumbing and will do our best to keep you as educated as we can on your task or project. We look forward to working with you.

"They came after calling twice, once they came, they were professional !"

Rafy A on July 2025


Avatar for Copper Sky Plumbing

Copper Sky Plumbing

4.97(
37
)
Approved Pro

Copper Sky Plumbing

4.97(
37
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
50 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


Avatar for R.A. Mechanical, Inc.

R.A. Mechanical, Inc.

4.78(
323
)
Approved Pro

R.A. Mechanical, Inc.

4.78(
323
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
273 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


Goodfellas Sewer and Drain Specialist

4.94(
49
)
Approved Pro

Goodfellas Sewer and Drain Specialist

4.94(
49
)
Approved Pro
Super Service Award
Customers say: Quality work
168 local quotes requested
1 years of experience

Family owned business with over 13 years of experience in handling all you plumbing needs , Sewer and drain cleaning , Sump pump, Ejector pumps, etc.

"Very professional, Dan was excellent and quick"

Juan c on December 2025

Family owned business with over 13 years of experience in handling all you plumbing needs , Sewer and drain cleaning , Sump pump, Ejector pumps, etc.

"Very professional, Dan was excellent and quick"

Juan c on December 2025


"Service was prompt, professional and well done."

Mark B on January 2024

24 hour service flat rate pricing on repairs 2 year warranty(repairs) installations(10 yr parts and labor warranty)

"Service was prompt, professional and well done."

Mark B on January 2024


Avatar for CT Plumbing LLC

CT Plumbing LLC

5.00(
15
)
Approved Pro

CT Plumbing LLC

5.00(
15
)
Approved Pro
1 years of experience
Emergency services offered

CT Plumbing LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"These guys were great! They were very professional , And less expensive than the other quotes I got "

michael l on October 2025

CT Plumbing LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"These guys were great! They were very professional , And less expensive than the other quotes I got "

michael l on October 2025


Avatar for Aqua Knight Plumbing Co.

Aqua Knight Plumbing Co.

5.00(
7
)
Approved Pro

Aqua Knight Plumbing Co.

5.00(
7
)
Approved Pro
Customers say: Quick response
139 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


Avatar for J&S Plumbing, Inc.

J&S Plumbing, Inc.

4.66(
838
)
Approved Pro

J&S Plumbing, Inc.

4.66(
838
)
Approved Pro
Customers say: Super punctual
372 local quotes requested
34 years of experience

Award winning service is just a phone call away! J&S Plumbing is available by phone 24/7/365. You will always speak to a live person to provide excellent service for your plumbing needs. Just dial P L U M B E R (758-6237) from any Chicagoland area code: 312, 630, 708, 773 or 847. NO extra charge for nights, weekends, or holidays. J&S Plumbing is an licensed, bonded and insured plumbing contractor servicing the Chicago-land area since 1991. We provide a professional staff, licensed plumbers, rapid response time, technical skill & superior workmanship. We service a diverse customer base including hotels, hospitals, restaurants, apartment complexes, industrial facilities & property management firms. We also offer a wide variety of services ranging from residential and commercial emergency service plumbing, to full sewer & water service repair & replacement (including hydro jetting). No job is too big or too small. Take a look at our website http://jsplumbing.net for additional company information.

"Installation went very well, but at the end I noticed the floor anchors are sticking out too much and the caps are not covering them. After I asked the installer if he can trim it, he said he doesn’t have hand saw and cannot use his power saw to do it. He told me I will have to buy my own saw and cut it myself. That defeats the purpose of hiring and paying for a professional to do their job!"

Bogdan Z on July 2025

Award winning service is just a phone call away! J&S Plumbing is available by phone 24/7/365. You will always speak to a live person to provide excellent service for your plumbing needs. Just dial P L U M B E R (758-6237) from any Chicagoland area code: 312, 630, 708, 773 or 847. NO extra charge for nights, weekends, or holidays. J&S Plumbing is an licensed, bonded and insured plumbing contractor servicing the Chicago-land area since 1991. We provide a professional staff, licensed plumbers, rapid response time, technical skill & superior workmanship. We service a diverse customer base including hotels, hospitals, restaurants, apartment complexes, industrial facilities & property management firms. We also offer a wide variety of services ranging from residential and commercial emergency service plumbing, to full sewer & water service repair & replacement (including hydro jetting). No job is too big or too small. Take a look at our website http://jsplumbing.net for additional company information.

"Installation went very well, but at the end I noticed the floor anchors are sticking out too much and the caps are not covering them. After I asked the installer if he can trim it, he said he doesn’t have hand saw and cannot use his power saw to do it. He told me I will have to buy my own saw and cut it myself. That defeats the purpose of hiring and paying for a professional to do their job!"

Bogdan Z on July 2025


Avatar for Four Seasons Heating & Air Conditioning

Four Seasons Heating & Air Conditioning

4.41(
3,062
)
Approved Pro

Four Seasons Heating & Air Conditioning

4.41(
3,062
)
Approved Pro
Customers say: Super punctual
983 local quotes requested
54 years of experience

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - cs@fourseasons-chicago.com, customer.service@fourseasons-chicago.com, fs@fourseasons-chicago.com. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"They are opportunist and unethical."

Laura D on November 2025

Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - cs@fourseasons-chicago.com, customer.service@fourseasons-chicago.com, fs@fourseasons-chicago.com. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.

"They are opportunist and unethical."

Laura D on November 2025

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