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Tankless water heater repair pros in Oak Lawn

Avatar for InSink, Inc.
InSink, Inc.
23W520 Saint Charles Road
4.83(
58
)
Approved Pro
InSink, Inc.
23W520 Saint Charles Road
4.83(
58
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
14 years of experience

Gracious service is an ideal that we have built into the foundation of our company. It means that we are dedicated to the quality of our service and bring generosity of spirit and appreciation to the lives of our customers. At InSink, Inc. we set a standard of service excellence and drive for continuous improvement as we respond to the dynamic needs of our customers and community. InSink, Inc. is committed to bringing the best service experience to our customers through knowledge and the willingness to share it.

"The price was somewhat higher than I expected, especially when I saw how little time it took. The work was done well, and (again) quickly, and the people were clean and took care of COVID protection. Got in touch with them, but also not perfect. Still, the job got done quickly and well once contact got made. I would use them again, mainly because relatively high charges are just about unavoidable with plumbers. They did what they said they would do, for the price they quoted me and did it well."

Ben W on October 2020

Gracious service is an ideal that we have built into the foundation of our company. It means that we are dedicated to the quality of our service and bring generosity of spirit and appreciation to the lives of our customers. At InSink, Inc. we set a standard of service excellence and drive for continuous improvement as we respond to the dynamic needs of our customers and community. InSink, Inc. is committed to bringing the best service experience to our customers through knowledge and the willingness to share it.

"The price was somewhat higher than I expected, especially when I saw how little time it took. The work was done well, and (again) quickly, and the people were clean and took care of COVID protection. Got in touch with them, but also not perfect. Still, the job got done quickly and well once contact got made. I would use them again, mainly because relatively high charges are just about unavoidable with plumbers. They did what they said they would do, for the price they quoted me and did it well."

Ben W on October 2020


Avatar for TRIANGLE PLUMBING LLC
TRIANGLE PLUMBING LLC
18515 State Route 173
4.98(
27
)
Approved Pro
TRIANGLE PLUMBING LLC
18515 State Route 173
4.98(
27
)
Approved Pro
Customers say: True professional
90 local quotes requested
2 years of experience

Triangle Plumbing, operated by a seasoned professional, offers comprehensive plumbing solutions for both residential and commercial clients. With years of experience and a commitment to excellence, we provide a full range of services, including installations, repairs, and 24/7 emergency assistance. Combining quality workmanship with competitive pricing, Nathan and his crew ensure customer satisfaction through transparent communication and prompt, efficient service. Contact Triangle Plumbing for expert solutions tailored to your needs and make us your dedicated plumbing contractor to address all your plumbing concerns with precision and care.

"Responsive, knowledgable, courteous."

Matthew E on July 2025

Triangle Plumbing, operated by a seasoned professional, offers comprehensive plumbing solutions for both residential and commercial clients. With years of experience and a commitment to excellence, we provide a full range of services, including installations, repairs, and 24/7 emergency assistance. Combining quality workmanship with competitive pricing, Nathan and his crew ensure customer satisfaction through transparent communication and prompt, efficient service. Contact Triangle Plumbing for expert solutions tailored to your needs and make us your dedicated plumbing contractor to address all your plumbing concerns with precision and care.

"Responsive, knowledgable, courteous."

Matthew E on July 2025


Avatar for Chicago’s Finest Remodeling Inc.
Chicago’s Finest Remodeling Inc.
4.76(
17
)
Approved Pro
Chicago’s Finest Remodeling Inc.
4.76(
17
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
1095 local quotes requested

We go above and beyond for our clients. They are the reason we are here and we are very aware of that and make sure we honor that relationship. There's no feeling like exceeding a customer's expectation! From conceptualization to the final product, we remain engaged with our clients and it's a great service to them to make this process as painless as possible with fantastic results.

"Peter and Evan did a great job."

Frieda F on June 2025

We go above and beyond for our clients. They are the reason we are here and we are very aware of that and make sure we honor that relationship. There's no feeling like exceeding a customer's expectation! From conceptualization to the final product, we remain engaged with our clients and it's a great service to them to make this process as painless as possible with fantastic results.

"Peter and Evan did a great job."

Frieda F on June 2025


Avatar for TF Sullivan Plumbing, Inc.
TF Sullivan Plumbing, Inc.
7440 Duvan Drive
5.00(
16
)
Approved Pro
TF Sullivan Plumbing, Inc.
7440 Duvan Drive
5.00(
16
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
44 local quotes requested

Family owned and operated business with 25+ years of experience. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied.

"Installers were very thorough in Replacing water heater and cleanup"

Tom M on March 2025

Family owned and operated business with 25+ years of experience. We strive to satisfy all of our customers and will go the extra mile to make sure you're completely satisfied.

"Installers were very thorough in Replacing water heater and cleanup"

Tom M on March 2025


Avatar for FB Construction, Inc.
FB Construction, Inc.
2825 Woodland Dr
4.86(
29
)
Approved Pro
FB Construction, Inc.
2825 Woodland Dr
4.86(
29
)
Approved Pro
Customers say: Quality work
703 local quotes requested
36 years of experience

General contractor with expertise in multiple categories including full gut rehab, windows, doors, siding, bathrooms, kitchens, additions and more! Over 40 years of industry experience allows us to start and finish any project efficiently, effectively, and on budget.

"This company is reliable. They are professional and trustworthy. They work really hard to please the customers. Definitely we will call them back."

Eva D on May 2023

General contractor with expertise in multiple categories including full gut rehab, windows, doors, siding, bathrooms, kitchens, additions and more! Over 40 years of industry experience allows us to start and finish any project efficiently, effectively, and on budget.

"This company is reliable. They are professional and trustworthy. They work really hard to please the customers. Definitely we will call them back."

Eva D on May 2023


Avatar for Jakubek Inc Remodeling
Jakubek Inc Remodeling
5016 N Oneida Ave
4.90(
110
)
Approved Pro
Jakubek Inc Remodeling
5016 N Oneida Ave
4.90(
110
)
Approved Pro
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
578 local quotes requested

At Jakubek Remodeling, we’re a proud family-owned business dedicated to transforming homes with craftsmanship you can trust. With years of hands-on experience, we specialize in kitchens, bathrooms, basements, and full-home renovations. Every project is treated like it’s for our own family—done with care, precision, and honesty. Our team combines old-school work ethic with modern design sensibilities, delivering quality results on time and on budget. Whether you're updating a single room or reimagining your entire space, we’re here to bring your vision to life with personalized service and clear communication every step of the way. Let us help make your house feel more like home.

"Wonderful!!! Love my bathroom remodel thanks to David and Robert. We needed to reschedule for many months due to my father being ill. They were so kind and thoughtful about it. Most contractors would have taken your deposit and never contacted you again. Not them. We completed the project and I am so so happy. They were punctual and tidy, cleaning up every day inside my unit and in the common area of my floor hallway. Talented contractors and even better humans! Thank you both!"

JULIE S on March 2025

At Jakubek Remodeling, we’re a proud family-owned business dedicated to transforming homes with craftsmanship you can trust. With years of hands-on experience, we specialize in kitchens, bathrooms, basements, and full-home renovations. Every project is treated like it’s for our own family—done with care, precision, and honesty. Our team combines old-school work ethic with modern design sensibilities, delivering quality results on time and on budget. Whether you're updating a single room or reimagining your entire space, we’re here to bring your vision to life with personalized service and clear communication every step of the way. Let us help make your house feel more like home.

"Wonderful!!! Love my bathroom remodel thanks to David and Robert. We needed to reschedule for many months due to my father being ill. They were so kind and thoughtful about it. Most contractors would have taken your deposit and never contacted you again. Not them. We completed the project and I am so so happy. They were punctual and tidy, cleaning up every day inside my unit and in the common area of my floor hallway. Talented contractors and even better humans! Thank you both!"

JULIE S on March 2025


SAM I AM INC
181 Tollview
4.65(
189
)
Approved Pro
SAM I AM INC
181 Tollview
4.65(
189
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
455 local quotes requested

OWNER-OPERATED, I'M A ONE MAN COMPANY. FREE ESTIMATES. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. NO SERVICE FEES. MAY CONTACT THROUGH EMAIL. IF THROUGH EMAIL PLEASE LEAVE CONTACT NUMBER.

"Did an excellent job on my punchlist!"

Brian D on May 2024

OWNER-OPERATED, I'M A ONE MAN COMPANY. FREE ESTIMATES. NO SUBS. COST IS DETERMINED BY THE JOB. NO TRAVEL CHARGES. NO SERVICE FEES. MAY CONTACT THROUGH EMAIL. IF THROUGH EMAIL PLEASE LEAVE CONTACT NUMBER.

"Did an excellent job on my punchlist!"

Brian D on May 2024


Avatar for Prime Bath
Prime Bath
660 S Broadway
4.96(
28
)
Approved Pro
Prime Bath
660 S Broadway
4.96(
28
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2216 local quotes requested

Prime Baths and Home Solutions of Illinois is the leader in exceptional custom service for bathroom remodeling projects in the greater Chicagoland area! We provide excellent craftsmanship while offering very competitive pricing, as well as in house installers. No Sub -Contractors! We additionally offer products that are backed up with a lifetime warranty, and have incredible financing offers! Rates as low as 0%. Contact us today to set up a FREE in home quote. We look forward to hearing from you!

"The men made a great new shower area! They cleaned up as well! I called the office to try to arrange the balance of work. Haven’t heard back from anyone - but yes! The work great!"

Jean H on November 2024

Prime Baths and Home Solutions of Illinois is the leader in exceptional custom service for bathroom remodeling projects in the greater Chicagoland area! We provide excellent craftsmanship while offering very competitive pricing, as well as in house installers. No Sub -Contractors! We additionally offer products that are backed up with a lifetime warranty, and have incredible financing offers! Rates as low as 0%. Contact us today to set up a FREE in home quote. We look forward to hearing from you!

"The men made a great new shower area! They cleaned up as well! I called the office to try to arrange the balance of work. Haven’t heard back from anyone - but yes! The work great!"

Jean H on November 2024


Avatar for Homewise Remodelers, Inc
Homewise Remodelers, Inc
2841 N Pulaski Rd
4.89(
91
)
Approved Pro
Homewise Remodelers, Inc
2841 N Pulaski Rd
4.89(
91
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
726 local quotes requested

Chicagoland's Reliable Home Improvement Company servicing the City of Chicago and most suburbs. We specialize in full remodels of kitchens, bathrooms, condos and basements. We do not offer repair work or partial remodels. Celebrating 25 years in business.

"Miro redid our kitchen and half bath and we're thrilled with the results. We got a few quotes and ultimately went with Homewise Remodelers because the price was reasonable and Miro was so thorough in walking us through our options. He helped us select cabinets and worked through several versions of the kitchen layout until we were happy with it--we were easily able to swap out cabinet layouts and finishings, like adding a farmhouse sink. His crew were reliable, on-time, and respectful of our property throughout the remodel and we appreciated their attention to detail. They solicited our input on decorative details and were quick to fix things we didn't like, e.g., the location of kitchen cabinet pulls. We felt they treated our home as they would their own. The project even wrapped up a few days early. We would absolutely recommend Homewise Remodelers and choose them for future projects."

Shelby K on April 2025

Chicagoland's Reliable Home Improvement Company servicing the City of Chicago and most suburbs. We specialize in full remodels of kitchens, bathrooms, condos and basements. We do not offer repair work or partial remodels. Celebrating 25 years in business.

"Miro redid our kitchen and half bath and we're thrilled with the results. We got a few quotes and ultimately went with Homewise Remodelers because the price was reasonable and Miro was so thorough in walking us through our options. He helped us select cabinets and worked through several versions of the kitchen layout until we were happy with it--we were easily able to swap out cabinet layouts and finishings, like adding a farmhouse sink. His crew were reliable, on-time, and respectful of our property throughout the remodel and we appreciated their attention to detail. They solicited our input on decorative details and were quick to fix things we didn't like, e.g., the location of kitchen cabinet pulls. We felt they treated our home as they would their own. The project even wrapped up a few days early. We would absolutely recommend Homewise Remodelers and choose them for future projects."

Shelby K on April 2025


Q M R Remodeling
17439 Woodbrook Ln
4.76(
46
)
Approved Pro
Q M R Remodeling
17439 Woodbrook Ln
4.76(
46
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
454 local quotes requested

We have completed hundreds of home improvement projects in our twenty six years of business. Reach out by phone or visit our website to schedule a consultation. Thanks!

"Jeff had done beautiful work at my parents house so I was excited to use him for a kitchen remodel in my first home. He is always friendly, professional, and responsive. He can handle any kind of issue that may arise, such as the need to move an unexpected vent. For our kitchen he tore down a pantry closet and the soffit, installed new flooring, cabinets, backsplash, shelving, range hood, lighting. He has great recommendations and his attention to detail is impeccable. We highly recommend Jeff and his team for your project!"

Amy S on March 2025

We have completed hundreds of home improvement projects in our twenty six years of business. Reach out by phone or visit our website to schedule a consultation. Thanks!

"Jeff had done beautiful work at my parents house so I was excited to use him for a kitchen remodel in my first home. He is always friendly, professional, and responsive. He can handle any kind of issue that may arise, such as the need to move an unexpected vent. For our kitchen he tore down a pantry closet and the soffit, installed new flooring, cabinets, backsplash, shelving, range hood, lighting. He has great recommendations and his attention to detail is impeccable. We highly recommend Jeff and his team for your project!"

Amy S on March 2025

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FAQs for tankless water heater installation projects in Oak Lawn, IL

Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.

Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.

Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.

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