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Find Water heater repair or service pros in Frederick

Markool Heating & Cooling, LLC
4.7(
18
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Was looking for a company to service/maintenance. Called them and shared my concerns. Scheduled and appointment within 3 days. Technician was polite and professional. Could tell he knew about AC unit and his profession. Fair cost/pricing Highly recommend."
Response time1 day
12 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mahon Plumbing
Mahon Plumbing
4.6(
199
)

Serving Frederick, 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 Family Plumbing Services LLC
Family Plumbing Services LLC
4.2(
13
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"My water heater started leaking on a Sunday. I reached out to Family Fire Service and they responded immediately. They had a new water heater out to my house the next day and installed in a few hours. The supervisor and the tech worked seamlessly to have us up and running. They provided quality service and at a very competitive price. I highly recommend Family Fire Service and Plumbing. KC"
WH Replace
Sewer Repair
Battery Back Up
Camera Inspection
Clogged Sewer Snake

+1

Response time5 hrs
Response rate92%
196 neighbors recently requested a quote
Avatar for Horizon Services, LLC (MD)
Horizon Services, LLC (MD)
3.8(
1,467
)

Serving Frederick, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Hello, I am requesting assistance from a licensed plumber/gas fitter for gas service restoration at my property: 1239 Maple Ave. Baltimore, MD 21227 BGE has determined that the prior gas service was abandoned and is now processing the project as a new gas service line and exterior meter installation. BGE will be meeting me on-site on Tuesday, June 9, 2026, at 9:00 AM to review and approve the proposed exterior meter location. I need a licensed plumber/gas fitter who can either attend that BGE site visit or come immediately afterward to evaluate the work required on the customer side of the gas system. The scope of work includes: - Inspecting the existing gas piping to determine whether any portion can be safely reused; - Extending, repairing, or replacing internal gas piping as needed; - Establishing the new customer-side gas connection point for the exterior BGE meter; - Pulling the required gas/plumbing permit; - Performing the required pressure test; - Coordinating the requir"
Horizon Plumber under sink
Horizon Plumber in Kitchen with homeowner
Horizon Plumber crawl space
11 neighbors recently requested a quote
Recommended by89%of homeowners
F.H. Furr Plumbing Heating & Air Conditioning Inc
4.1(
20
)

Serving Frederick, MD and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Emergency services offered

"The price was part of my check up I got. I just like that they seemed to want to talk me into having my air conditioning cleaned and it only been out there like 6 months. My interaction with them was fine. I told them no and so be it. The work turned out fine. They were fine."
21 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Benjamin Franklin Plumbing
Benjamin Franklin Plumbing
3.9(
107
)

Serving Frederick, MD and surrounding areas

Approved

In business since 1949

Free estimates

Credit card accepted

"Came out in the middle of a flash flood warning and rain storm. Remediated the problem at an affordable price. The project required further work at a later date."
Water Heater 1
Water Heater 2
Water Treatment
Fixed Leak 2
Leaking Under Sink 1

+12

Response time6 hrs
14 neighbors recently requested a quote
Recommended by58%of homeowners
Heuer Plumbing and Heating
4.4(
11
)

Serving Frederick, MD and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"BB&B removed a faulty garbage disposal and installed a new one. The plumber, at my request, purchased the new unit on my behalf and selected one appropriate for the job without gouging me on the price. The work was done quickly and neatly and I was quite satisfied; I will certainly call them in the future."
Response time10 mins
Response rate100%
Recommended by90%of homeowners
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FAQs for water heater repair or service projects in Frederick, 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 Frederick, 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.