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TRUSTED BY FREDERICK, PA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon19
    Verified water heater services reviews

Top-Rated Water heater pros in Frederick - Updated Nov 2026

Avatar for H L Bowman
H L Bowman
4.6(
428
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Repair+1 more

Serving Frederick, PA and surrounding areas

Approved (Corporate)

In business since 1946

Free estimates

Emergency services offered

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."
Additional Photos
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Additional Photos

+6

475 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for G. Hager Plumbing Heating and Cooling
G. Hager Plumbing Heating and Cooling
4.5(
16
)
Tankless Water Heater - InstallWater Heater - Install or Replace

Serving Frederick, PA and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!\n

After
After
Before
Before
York Furnace

+7

27 neighbors recently requested a quote
Recommended by44%of homeowners
Avatar for Valdel Plumbing
Valdel Plumbing
4.8(
184
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Frederick, PA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"The workmanship was very professional and cleaned up afterwards. Wouldn't even know they were here. Billy did an excellent job with the removal and instillation of a new hot water heater. Brought the instillation up to code by adding a drip pan and expansion tank. I have them coming back to replace valves for washing machine and installing shutoff valves."
Additional Photos
Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Patriot Heating and Cooling
Patriot Heating and Cooling
4.3(
81
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceWater Heater - Install or Replace - For Business+1 more

Serving Frederick, PA and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"Fantastic experience. We had a 40 year old underground oil tank removed and a new tank installed. Bill and Rob are rock stars - totally competent and professional with a great "can do" attitude. I paid the price quoted and Joe even fixed the miscommunication with the Township over permitting on project day. I would definitely hire Superior again!!"
Response time1 day
123 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for ValDel Plumbing, LLC
ValDel Plumbing, LLC
4.7(
444
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+3 more

Serving Frederick, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Emergency services offered

Warranties offered

"Got an estimate for new water heater and installed the same day. Billy and his apprentice were professional and did a great job. The price was very good and I feel they really wanted to make sure we were happy with them. Would use again- thank you!"
Response time40 mins
371 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Marshall Services
Marshall Services
4.1(
133
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Repair

Serving Frederick, PA and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"Did conversion from Oil to gas and installed new water heater and boiler. Work was fantastic, easy to do business with, and was a great help in the entire process from beginning to end."
Heatpump interior
heatpump exerior
Gs Funace Installation
Air Conditioning Installation
Air Condition Installation

+2

Response time10 mins
141 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Progressive Construction Group
Progressive Construction Group
4.8(
46
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For BusinessWater Heater - Repair or Service+1 more

Serving Frederick, PA and surrounding areas

Approved

In business since 2024

Emergency services offered

Warranties offered

"Fernando and his team were incredible. I had an emergency at one of my properties and needed urgent assistance after hours. Fernando came out personally with his crew they found and corrected the issue rightaway. I also had them change four 90 gallon water heaters at two of my properties and they did an incredible job. What stands out with Fernando and his crew is how neat they work, how professional and knowledgeable they are, and they also left all three of my properties spotless cleaning up after themselves. I can't be happier with the work I received from them and now I have them on speed dial for all of my plumbing work."
Main storm line
Main storm line
Main storm line
Main storm line
Main storm line

+60

Response time7 hrs
Response rate90%
Avatar for Horizon Services, LLC (PA)
Horizon Services, LLC (PA)
3.9(
1,722
)
Water Heater - Repair or ServiceTankless Water Heater - InstallTankless Water Heater - Repair+1 more

Serving Frederick, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Horizon Services, Inc., is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey and Northeastern Maryland. After a quarter of a century in business, Horizons Services, Inc., remains fully committed to setting the industry standard for customer service, installation and focusing on things that are important to busy homeowners. \n

Plumber in Kitchen with Customer
Horizon Plumber crawl space
Horizon Plumber under sink
4 neighbors recently requested a quote
Recommended by89%of homeowners
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Water Heaters FAQs, answered by experts

Choosing between an electric water heater vs. a gas water heater comes down to personal preference. Overall, electric heaters are more energy efficient than their gas competitors. They’re also quieter to operate, take up less room, and don’t come with a risk of gas leaks. 

The downside is that electric water heaters cost more to operate than gas. They might also struggle to heat water fast enough for households that use large amounts of hot water. Lastly, a power outage could cause your electric water heater to stop working, whereas gas water heaters may still function.

Often, the first issue you might encounter is a lack or loss of power—this could be caused by a tripped switch or a failed heating element. If your hot water is not producing enough power and its size is not the issue, you might need to replace one of its heating elements. A leaking water heater could be caused by tank erosion.

Most hot water heater manufacturers recommend replacing the anode rod about once every three to five years. Anode rods sacrifice themselves by collecting iron, limestone, and other minerals that would otherwise corrode your hot water heater tank. This abuse wears them out long before your water heater does. Check the rod when you remove it and replace it if more than 50% of the metal has been consumed. Check the rod more frequently if you have hard water or use a water softener. 

You can use multiple tankless water heaters, but that doesn’t mean you should. Adding multiple tankless heaters adds considerable cost to your home in both parts and installation costs. Also, you’re adding many more points of failure in the system, making plumbing issues harder to diagnose. More heaters mean more maintenance, and insurers may want a word regarding the increased risk of water damage. A single, larger unit makes more sense in most situations.

Electric water heaters typically last 10 to 20 years, though proper maintenance can extend their lifespan. If your unit is over a decade old and showing signs of inefficiency—such as higher energy bills, frequent repairs, or leaks—replacement is a smart investment. Tankless models last over 20 years, which can make them a longer-lasting alternative to traditional tank water heaters.

The Frederick, PA homeowners’ guide to water heater services

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