Top-rated tankless water heater repair pros.

Get matched with top tankless water heater repair pros in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Tankless water heater repair pros in Seneca

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
2194 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 Copper Sky Plumbing
Copper Sky Plumbing
212 Elmwood Pl
4.85(
34
)
Approved Pro
Copper Sky Plumbing
212 Elmwood Pl
4.85(
34
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
996 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.

"This is the fastest, most knowledgeable and best service I have done on my house. Same day service, answered all my questions, following with other issues that I would be major problems but set my mind at ease. So happy with this service - would recommend to anyone and everyone in my area! Dave is great and such reasonable prices too!"

Sandy A on May 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.

"This is the fastest, most knowledgeable and best service I have done on my house. Same day service, answered all my questions, following with other issues that I would be major problems but set my mind at ease. So happy with this service - would recommend to anyone and everyone in my area! Dave is great and such reasonable prices too!"

Sandy A on May 2025


Avatar for Perfect Choice Exteriors LLC
Perfect Choice Exteriors LLC
402 S. Main St.
4.64(
190
)
Approved Pro
Perfect Choice Exteriors LLC
402 S. Main St.
4.64(
190
)
Approved Pro
Customers say: Terrific value
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
107 local quotes requested

Your Satisfaction is Our Priority. With over 20 years of experience in home improvement including windows, siding, and roofing, we’re ready to ensure your upgrade is just right. Our company is based on the belief that our customers needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals. Locally Owned for over 20 years!

"Well , I would give it a zero star if I could. We scheduled an appointment after we spoke with one of the representatives at our local fall festival. He seemed great and we are in the market for replacing our windows and siding. We scheduled the appointment for Saturday at one PM. They called on Friday and verified the appointment for the following day. One o'clock came and went and at one thirty I called the business and was transferred to an answering service. The third party answering service was great and she took down our name and information verified our contact number, email, and address and said they would forward it onto the company and someone would be in touch. Two days later and no contact. The company was a no call no show for the appointment that they had verified the day before! Zero professionalism, respect, or regard for potential clients with a decent sized job! Grateful we dodged that nightmare before it started!"

Nathan H on October 2024

Your Satisfaction is Our Priority. With over 20 years of experience in home improvement including windows, siding, and roofing, we’re ready to ensure your upgrade is just right. Our company is based on the belief that our customers needs are of the utmost importance. Our entire team is committed to meeting those needs. As a result, a high percentage of our business is from repeat customers and referrals. Locally Owned for over 20 years!

"Well , I would give it a zero star if I could. We scheduled an appointment after we spoke with one of the representatives at our local fall festival. He seemed great and we are in the market for replacing our windows and siding. We scheduled the appointment for Saturday at one PM. They called on Friday and verified the appointment for the following day. One o'clock came and went and at one thirty I called the business and was transferred to an answering service. The third party answering service was great and she took down our name and information verified our contact number, email, and address and said they would forward it onto the company and someone would be in touch. Two days later and no contact. The company was a no call no show for the appointment that they had verified the day before! Zero professionalism, respect, or regard for potential clients with a decent sized job! Grateful we dodged that nightmare before it started!"

Nathan H on October 2024


Avatar for Neli Virtual Appliance Repair
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Customers say: Super punctual
57590 local quotes requested
9 years of experience

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025


Loellke Plumbing
22974 East County Rd
3.00(
2
)
Loellke Plumbing
22974 East County Rd
3.00(
2
)
Customers say: Quality work

Arrow Well And Pump
4014 Tyler Dr
5.00(
2
)
Arrow Well And Pump
4014 Tyler Dr
5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The Ohlson Group
10233 Clow Creek Rd.
No reviews
The Ohlson Group
10233 Clow Creek Rd.
No reviews
32 years of experience

Complete projects-one price-totally done-one convenient call is all it takes. The Ohlson Group has been in business since 1993. As the owner I have always been in the building trade, my interest in the trade started back in grade school wood shop and evolved into what is now The Ohlson Group. We have done many jobs for builders and homeowners over the years and can provide many references. We are members of the BBB with an A+ rating. You can check out our website as we are adding pictures daily.

Complete projects-one price-totally done-one convenient call is all it takes. The Ohlson Group has been in business since 1993. As the owner I have always been in the building trade, my interest in the trade started back in grade school wood shop and evolved into what is now The Ohlson Group. We have done many jobs for builders and homeowners over the years and can provide many references. We are members of the BBB with an A+ rating. You can check out our website as we are adding pictures daily.


Russell's Service Plumbing 055-042447
13400 S Rte 59
No reviews
Russell's Service Plumbing 055-042447
13400 S Rte 59
No reviews
16 years of experience

Over 20 years in the Plumbing industry, fully licensed, bonded, and insured. Owner performs most work. We have flat rate, or by the hour. We take checks , cash, and credit cards but must chargeextra for doing so.

Over 20 years in the Plumbing industry, fully licensed, bonded, and insured. Owner performs most work. We have flat rate, or by the hour. We take checks , cash, and credit cards but must chargeextra for doing so.


U.S. Water Heating Solutions
Illinois, Indian, Iowa, Michigan, Wisconsin
No reviews
U.S. Water Heating Solutions
Illinois, Indian, Iowa, Michigan, Wisconsin
No reviews
7 years of experience

U.S. Water Heating Solutions, LLC serves the expanded coverage areas of Illinois, Wisconsin, Indiana, Michigan, and Iowa for both residential and commercial water heating equipment customers. Our 24/7/365 emergency repair and replacement services are available to all of our customers. Our ability to restore HOT WATER and get our customers back up and running rapidly is our focus. Each of our service vehicles are fully stocked with the parts and tools to restore HOT WATER for all of the industry's leading manufacturers of water heaters and boilers. We will continue to grow, develop, and innovate the market as a fully-stocked parts service provider for all of the major manufacturers. Our technicians are factory trained and certified.

U.S. Water Heating Solutions, LLC serves the expanded coverage areas of Illinois, Wisconsin, Indiana, Michigan, and Iowa for both residential and commercial water heating equipment customers. Our 24/7/365 emergency repair and replacement services are available to all of our customers. Our ability to restore HOT WATER and get our customers back up and running rapidly is our focus. Each of our service vehicles are fully stocked with the parts and tools to restore HOT WATER for all of the industry's leading manufacturers of water heaters and boilers. We will continue to grow, develop, and innovate the market as a fully-stocked parts service provider for all of the major manufacturers. Our technicians are factory trained and certified.


Reeders Remodeling
121 S 17th
5.00(
1
)
Reeders Remodeling
121 S 17th
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Anywhere from 1-10 employees. May hire sub contractors. Charges by the job. Travel/trip charges may apply for long distance jobs.

Anywhere from 1-10 employees. May hire sub contractors. Charges by the job. Travel/trip charges may apply for long distance jobs.

...
Showing 1-10 of 258

FAQs for tankless water heater installation projects in Seneca, 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.

Share project details to get started.