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Top-Rated Water heater repair or service pros in Delaware - Updated Nov 2026

Avatar for Water Heaters Plus!
Water Heaters Plus!
4.9(
67
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"What I liked about water heater plus is that the person I contacted clearly explained all of the options to me. He did not try to convince me to take any route in particular; he encouraged me to do what would be best for me financially at the time. I ended up replacing my old water heater and I think that was the best decision. The technician efficiently replaced my old water heater."
Tankless Water Heater
Tankless Water Heater
Tankless Water Heater
Tankless Water Heater
Tankless Water Heater

+25

Response time4 hrs
Response rate91%
3 neighbors recently requested a quote
Jack L Woods Plumbing Co Inc
4.8(
3,031
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

In business since 1977

Customers say: Super punctual

"We are thrilled with the service, efficiency and professionalism of the staff at Jack L. Woods Plumbing Company! We had an issue with a faucet leaking and it was affecting our ability to have hot water. We called a plumbing company we have used for several years and were told they couldn't get to us for nearly two weeks! We decided to check Angi's list last night and we chose Jack L. Woods Plumbing Company. My husband, Greg, phoned them this morning and even though they said they were quite busy, they would work to fit us in tomorrow morning. But then my husband received a call and was told the plumber, Bill H. was on his way to our home. Bill fixed the issue within a short period of time and the leak stopped. We still need to do more work on the main bathroom tub fixtures, but that can wait. We’re over the moon to have our hot water back! Highly, highly recommend Jack L. Woods Plumbing Company to you."
Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Logan Services A/C, Heat & Plumbing
Logan Services A/C, Heat & Plumbing
4.7(
51
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

In business since 1969

Free estimates

Credit card accepted

"Phenomenal service from sales to installation. My home was left the way they found it, cleaned up after themselves and explained everything to me that I needed to know. Highly recommend this company."
Trane Furnace Installation
Air Conditioner Installation
State Water Heater Installation
New Water Heater Installation
Water Heater, Furnace, and Water Treatment

+1

Response time3 hrs
Recommended by97%of homeowners
Avatar for Mercenary Remodeling & Handyworks
Mercenary Remodeling & Handyworks
5.0(
70
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Excellent service. Came when promised. Work was done professionally. He replaced 2 outdoor faucets with a shutoff for each in the basement. He texted me pictures of the work and showed me his work when he was done. Already hired him again to repair an outdoor sump pump discharge pipe. Will hire again. I highly recommend."
Bath remodel #MF/JC 977
Bath remodel #MF/JC 977
Bath remodel #MF/JC 977
Bath remodel #MF/JC 977
Bath remodel #MF/JC 977

+147

Response time9 hrs
Response rate95%
16 neighbors recently requested a quote
Avatar for Apex Plumbing, Heating, and Air Pros, LLC
Apex Plumbing, Heating, and Air Pros, LLC
4.3(
132
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Impressed is an understatement! I called Apex when my mom's water heater went out and the company her home warranty sent couldn't repair the shut off valve. They came within 1.5 hours of me calling and were amazing. They repaired the shut off valve and took the time to explain everything. We were so impressed we had them install the new hot water tank instead of using the home warranty company. Charles was able to do everything the same day and worked around the water mitigation company. He was so professional and did a great job. We will definitely be using them for all our future plumbing needs!"
Tankless Install
Water Filtration
Heater
Kitchen
Van

+6

Response time6 hrs
20 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Apex Plumbing, Heating and Air Pros
Apex Plumbing, Heating and Air Pros
3.8(
125
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"The team arrived on time and was expert, professional, and personable. The water heater works as expected. They completed the work quickly and left the work site as clean as they found it. They were careful not to damage walls or door frames when removing and bringing in the water heaters. Recommended."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+22

Response time1 day
Response rate100%
44 neighbors recently requested a quote
Avatar for Mr.FixAll Plumbing and Drains
Mr.FixAll Plumbing and Drains
5.0(
5
)
Water Heater - Repair or Service

Serving Delaware, OH and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

Mr Fixall Handy Man Services LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations.

4 neighbors recently requested a quote
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FAQs for water heater repair or service projects in Delaware, OH

Warning signs include fluctuating water temperatures, a pilot light that repeatedly goes out, unusual noises from the tank, or complete heating failure. You might also detect a rotten egg smell, indicating a potential gas leak, or notice water that never reaches the proper temperature. If your water heater is over eight years old and displaying these symptoms, the gas valve is a likely culprit. Professional inspection is recommended, especially if gas odors are present.

Water heater gas valves are not universally interchangeable. Each valve must match your specific water heater's make, model, and specifications. Important compatibility factors include gas type (natural gas vs. propane), BTU rating, connection types, and physical dimensions. Using an incorrect valve can result in poor performance, premature failure, or dangerous gas leaks. Always consult your water heater's documentation or a professional plumber to identify the appropriate replacement valve for your unit.

The Delaware, OH homeowners’ guide to water heater repair or services

From average costs to expert advice, get all the answers you need to get your job done.