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TRUSTED BY FREDERICK, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon91
    Verified water heater services reviews

Find Water heater pros in Frederick

Avatar for Jimmy Gusky Heating & Air LLC
Jimmy Gusky Heating & Air LLC
4.3(
374
)
Water Heater - Install or ReplaceTankless Water Heater - InstallWater Heater - Repair or Service+6 more

Serving Frederick, MD and surrounding areas

Approved

In business since 1996

Emergency services offered

Credit card accepted

"Excellent. Two separate teams came; one for AC and Furnace; second for Tankless hot water heater; Minor toilet repair also done at no extra charge, including a follow up service call to install new toilet flush handle, also at no charge."
Additional Photos
Additional Photos
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Response time9 hrs
8 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for GAC Services
GAC Services
4.8(
292
)
Water Heater - Install or ReplaceTankless Water Heater - Install

Serving Frederick, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"Great company. We have used them for over 20 years and they have always performed well.  Recently, we installed carpet in our basement and this made the A/C condensation pipe too short.  We did not notice the situation at first but found out later that the water had soaked that area of carpet.  We went into a panic and called GAC.  They sent a tech out right away and solved the draining problem.  Always prompt and professional, one of best contractors that we have ever used."
Additional Photos
30 neighbors recently requested a quote
Recommended by94%of homeowners
Markool Heating & Cooling, LLC
4.7(
18
)
Water Heater - Install or ReplaceSolar Water Heater System - InstallTankless Water Heater - Install+6 more

Serving Frederick, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Chris was very easy to work with throughout the whole transaction hes very understanding and really wants to keep the customer happy! This company got to the job asp for me and my family! Thanks to you guys we no longer have a carbon monoxide leak!!"
Response time1 day
11 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mahon Plumbing
Mahon Plumbing
4.6(
199
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Frederick, MD and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"This company is nothing other than excellent. A bit pricey, but you only get what you play for - and I got plenty. On Saturday afternoon, I found out that I needed a complete sewer line replacement. By late Sunday afternoon, I had one! The crew had to dig down about 10 feet to remove the broken line and then had to tunnel under my patio to get to the cast iron pipe in order to connect the new line. After the installation, the dirt was replaced, the area was seeded and covered with straw, and the sidewalks and parking lot were sprayed clean. Every single guy in the crew was friendly and knowledgeable. Special thanks to Gregg, Chris and Mike. I have recommended Mahon to friends and family and have already scheduled another job. If you need a good plumber, whether for something major or minor, I highly recommend Mahon Plumbing."
Tankless water heater installation
Tankless Water Heater Installation
Commercial drain cleaning
Sewer Line Video Inspection
Water heater replacement

+30

Response time1 hour
Response rate88%
Recommended by92%of homeowners
O'Donnell Plumbing
4.7(
94
)
Water Heater - Install or ReplaceTankless Water Heater - InstallWater Heater - Repair or Service

Serving Frederick, MD and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quality work

"Mr. O'Donnell did a great job. He was here on time, very professional, his price was what quoted to us on the phone and did a great job replacing our leaking water heater. We are going to have him come back and do some more work on the house. He even came out on a Sunday just to make sure we would still have water. I would recommend Mr. O'Donnell to any of my friends and co-workers. Harley my dog even found a new friend !!"
Response time5 hrs
1 neighbors recently requested a quote
Recommended by60%of homeowners
F.H. Furr Plumbing Heating & Air Conditioning Inc
4.1(
20
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Frederick, MD and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Emergency services offered

"Wonderful. Joe, Nelson, and the entire team did a great job. Polite, friendly, and efficient. Cost-effective too. We will definitely consider using them again for the inevitable kitchen and bathroom remodeling."
21 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Dave the Plumber, LLC
Dave the Plumber, LLC
4.2(
187
)
Water Heater - Install or ReplaceWater Heater - Repair or Service

Serving Frederick, MD and surrounding areas

Approved

In business since 2000

Warranties offered

Small jobs welcome

"I hired a plumber through HomeAdvisor using prepay but I would not recommend this service. The contractor left a leaky pipe that caused water coming up through carpet. I had to purchase a wet vacuum to dry out the carpet. I had to contact HomeAdvisor again and hired Dave the Plumber, LLC who had to redo the installation done previously. Dave the Plumber replaced all the piping and outside spigot because of a water leak the previous contractor left. Thank you Dave the Plumber for being a professional and a job well done."
Our work
Our work
Our work
Our work
Our work

+11

Response time6 hrs
20 neighbors recently requested a quote
Recommended by80%of homeowners
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Water Heaters questions, answered by experts

When the water expands in a hot water heater, it puts pressure on your hot water pipes and can cause leaks or a rupture in the hot water tank under certain conditions. Pipes or water heaters may split due to the pressure where there is a backflow preventer that prevents the hot water heater from diffusing pressure by releasing water back to the public water line.

In these scenarios, a hot water heater expansion tank provides a place for the hot water heater to relieve pressure and prevent bursts and leaks.

Unusual noises, lack of hot water supply, efficiency loss, and visible leaks are signs of necessary replacement beyond mere repair.

A leaking water heater could potentially last for a few weeks or months before you need to repair it. However, it's not advisable to wait too long. Once your water heater starts leaking, it's likely that the underlying cause of the leak is getting worse as time goes on. Without immediate repair, your water heater could fail. Instead of using a leaky water heater, you should turn it off and call a pro to fix it.

A tankless water heater can last up to 20 years, which is nearly double the lifespan of a conventional tank heater. However, their longevity is highly dependent on several factors. With proper installation and regular maintenance, such as descaling to prevent mineral buildup from hard water, you can expect a lifespan of 15 to 20 years. Without proper care, a tankless unit may begin to fail in as little as 12 years. Other factors that affect its lifespan include household usage and the quality of the local water supply. While they have a higher upfront cost, their energy savings, smaller size, and longer life make them a worthwhile investment for many homeowners.

Unless you have previous plumbing experience or extensive experience with water heaters, you should avoid replacing your electric water heater yourself. This process involves disconnecting wiring and parts from the old water heater and reinstalling them onto the new one, among other difficult tasks. This job is best left to the pros to make sure that everything is connected correctly to avoid serious leaks or malfunctions.

The Frederick, MD homeowners’ guide to water heater services

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