Top-rated water heater repair or service pros.

Get matched with top water heater repair or service pros in Long-green, MD

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.

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

Avatar for Wallace Plumbing
Wallace Plumbing
5.0(
22
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Well let me start by saying I called several water heater companies to inquire about an estimate for my hot water heater that was not getting real hot. He was the ONLY repair person to come out that gave me the feeling he was trying to fix my hot water heater and not trying to sale me a new hot water. I never had a hot water heater water heater issue before therefore i was not familar with pontential problems. Everbody tried to get me to buy something called elements without actually trying to fix my heater. Wallace plumbing was able to identify some pressure thing or something with the thermostat that he fixed and saved me pontially thousands of dollars that other companies tried to sales pitch me. I then called Wallace plumbing because my toliet kept running and Wallace came out and fixed my toliet in minutes and his prices are very affordable. I will be using Wallace plumbing for any future needs and I recommend them!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+14

Response time9 hrs
Response rate100%
Recommended by95%of homeowners
Avatar for Water Field, LLC
Water Field, LLC
4.8(
133
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"I met two wonderful people today who went above and beyond to deliver professional and courteous service. The quality of their work was also Class A service. I highly recommend Water Field, LLC."
Internal Excavation
Sewer line extention
Gas water heater
Gas water heater
Sewer line replacement

+4

Response time20 mins
Recommended by99%of homeowners
Avatar for Atkisson Plumbing and Heating Company
Atkisson Plumbing and Heating Company
4.7(
219
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

In business since 1993

Free estimates

Customers say: True professional

"I sent an inquiry through Home Advisor the night my water heater started leaking and Bob called me bright and early the very next morning. He was professional, pleasant and replacement pricing was very reasonable. He and his plumber treated my home with respect by putting down drop cloths and they were quick with the replacement! They now have a customer for life."
Response time6 hrs
17 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Mr. Rooter of Maryland
Mr. Rooter of Maryland
4.3(
1,101
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

"Highly recommended! Mr. Rooter of Maryland responded to my request and arrived promptly After inspecting the needed repair, I was given a very reasonable price for my water heater and the job was completed immediately! Great service!"
Mr. Rooter of Baltimore fleet
Response time50 mins
19 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Mahon Plumbing
Mahon Plumbing
4.6(
199
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"I called at 8:00pm on a Tuesday night. The plumber came before 10:00pm as promised. He replaced a leaking shut-off valve and associated pipe within an hour. Cost was as quoted for one hour labor plus parts which were less expensive than expected. No extra costs for travel time or anything else. We will definitely use again."
Tankless water heater installation
Tankless Water Heater Installation
Commercial drain cleaning
Sewer Line Video Inspection
Water heater replacement

+30

Response time7 hrs
Response rate100%
Recommended by92%of homeowners
Avatar for Horizon Services, LLC (MDE)
Horizon Services, LLC (MDE)
4.2(
13
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Your Trusted AC, Heating & Plumbing Company Since 1987 \n \nWhen you need AC, heating, or plumbing services, look no further than Horizon Services. For 35 years, we’ve been the trusted name in plumbing, heating, and air conditioning, offering an unmatched level of service at reasonable rates. Servicing Baltimore, Cecil, and Harford counties in Maryland, and Chester, Lancaster, and York Counties in Pennsylvania, we proudly serve a large range of local homeowners with comprehensive AC, heating, and plumbing services. Our expert technicians can carry out same-day services and next day installations to ensure that your home remains comfortable year-round. Whether you’re dealing with a serious plumbing problem, a broken air conditioner, or a heating issue, you can rely on Horizon Services for the high-quality service you need at the price you want.

Horizon Sales at table
Horizon tech under Sink
Horizon tech in Truck
Horizon tech in kitchen
Horizon tech in Crawl Space

+1

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for A&C Plumbing and Heating
A&C Plumbing and Heating
5.0(
8
)
Water Heater - Repair or Service

Serving Long-green, MD and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Chris was my plumber and he was knowledgeable, courteous and responsive to my project. I would highly recommend this company for your plumbing and heating needs. They will be my go-to service provider for my future needs."
Response time3 hrs
Recommended by100%of homeowners
...
Showing 1-10 of 97
FAQs for water heater repair or service projects in Long-green, MD

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 Long-green, MD 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.