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Top-Rated Tankless water heater repair pros in Harwood Heights - Updated Nov 2026

Avatar for Aqua Smart Plumbing Services, Inc.
Aqua Smart Plumbing Services, Inc.
4.8(
24
)
Tankless Water Heater - Repair

Serving Harwood Heights, IL and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"I hired Aqua Smart Plumbing because I had no cold water to my second floor apartment. The plumber diagnosed the problem, which was in an area I thought could not have been the cause. He was right, and I was wrong. He replaced the needed pip and valve very efficiently. He also fixed the toilet on the second floor, which had a malfunctioning water valve. The final thing we worked on was replacing a defective cartridge in the shower. I was very pleased with the work. I would hire them again if I needed a plumber."
TESTING
REBUILT
KITCHEN SINK
SUMP AND EJECTOR PUMP REPLACMENT
3-COMP. SINK

+10

Response time9 hrs
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for A-1 Patrick's Sewer & Pipe Services
A-1 Patrick's Sewer & Pipe Services
4.5(
189
)
Tankless Water Heater - Repair

Serving Harwood Heights, IL and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Patrick, the owner made the service call to my house in about 1/2 hour. I was alone, babysitting for my two grandchildren and very worried. I explained my problem, he told me what to look for (a water shut off valve) and asked if I could turn the water off. I told him I would try. I was frantic because with the babies, then not finding any shut off valve, water coming up from the floor, and clearing way for what I thought would be a wall tear down - Patrick and his "manager" (?) arrived. (Mind you, my family also came to help, but did not locate the shut off valve). The water pipe happened to run under my bedroom floor! Needless to say, WITHIN MINUTES the rushing water stopped. I still have water for daily household use as the problem was a broken pipe to the exterior spigot.  Patrick was soaked, yet took the time to explain to me why exactly this had happened. He encouraged me to wait until the Spring when the weather is warmer to make any changes and repairs. Patrick is professional, knowledgeable, and quite a gentleman, (despite being waterlogged) and I felt that he gave me all options for this future repair.

"
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+1

Response time2 days
Response rate100%
Recommended by93%of homeowners
Avatar for White Star Sewer and Drain Services
White Star Sewer and Drain Services
4.7(
15
)
Tankless Water Heater - Repair

Serving Harwood Heights, IL and surrounding areas

Approved

In business since 2021

Warranties offered

Credit card accepted

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.\n\n$75 travel fee for quotes/consultations, Fee is waived if you move forward with the work .\nAll 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.\n\nWe take pride in helping our community one home at a time, with fair prices, friendly service, and plumbing you can trust.

Response time10 hrs
2 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for TDH Mechanical Heating & Cooling Contractors
TDH Mechanical Heating & Cooling Contractors
4.7(
366
)
Tankless Water Heater - Repair

Serving Harwood Heights, IL and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Outstanding!  We had TDH replace a 20+ year conventional boiler with a high efficiency boiler/hot water heater.  We received proposals from four companies, and chose TDH because they seemed to have the best overall plan and the price was reasonable.  Every phase of the operation went smoothly.  Tim, the owner, met with us twice before we accepted the proposal.  The contract was specific in terms of the work to be done and the equipment to be installed.  The project was started on the date we had set.  The technicians spent three 10-hour days installing the unit which included three thermostats/heating zones with three circulating pumps.  The workers arrived promptly at 7a.m. each morning and were professional, polite, and efficient.  When the installation was complete, Gene and Art tested every function and checked for leaks.  They also explained how the thermostats worked and showed us how to use all the controls on the unit (shut off valves, power switches, etc.).  We also have all the instruction and installation booklets on everything that was installed.  They actually left the basement cleaner than when they had arrived.  Tim called us the day after the installation to follow up with us and gave us some tips on basic maintenance.  Overall, we are very pleased with TDH and plan to use them in the spring to install an HVAC system."
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+18

Recommended by94%of homeowners
The Plumbing Doctor
4.4(
77
)
Tankless Water Heater - Repair

Serving Harwood Heights, IL and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"We actually had called Emanuel Brothers first since their name was on the water heater. But, after the amount of time and money they quoted us I decided to check Angie's. We had John come out and take a look and he told us he could do the same work for almost $800.00 less! I can't say I didn't have some trepidation. First, just how is it possible to do so much less work than we were told would be necessary (we had 2 water heaters. Neither of which worked after nearly 20 years, that had to be removed first to make room). And, for so much less. Emanuel Brothers were so perplexed by our situation that they had to call the boss to come out and explain everything to us. But, John had this "no problem" kinda attitude. Both refreshing and disconcerting. But, in just a couple of hours he had not only delivered a new water heater, he had the other 2 removed and the new one installed. And its been working flawlessly.
"
Recommended by84%of homeowners
Avatar for Harjonil Sewer Services, Inc.
Harjonil Sewer Services, Inc.
4.9(
42
)
Tankless Water Heater - Repair

Serving Harwood Heights, IL and surrounding areas

In business since 2020

Emergency services offered

Credit card accepted

"I was very pleased with the services I received from Harjonil Sewer Services. The Supervisor, Orlando, was professional, knowledgeable, and friendly. Orlando was able to repair a water pressure issue I had in my kitchen sink within less than 30 minutes after being told by another company that the issue was not fixable. Orlando also inspected the the water lines/pipes of my condo and provided a thorough explanation of the necessary repairs based on existing issues. Definitely recommended."
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Recommended by97%of homeowners
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