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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
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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

"I am SO pleased with this experience with GAC and highly recommend them! OUTSTANDING information and research on our behalf by Kelly for estimate options and finding the best unit and price for our needs. Chris was very impressive when he came to our home for preparation of the HVAC air handler/heat pump installment. Top notch work by John and the GAC crew on the actual work putting in my unit. They gave us the option and were qualified to run/install a new wire for our electric needs to have all energy savings of the equipment. Easy scheduling with Monica and follow-up too. ALL the GAC staff were happy to answer our various questions in full detail so we understood everything in this project and could make informed decisions. GAC found a high quality unit (Bryant) that suited our needs AND qualified for a PEPCO rebate, which they quickly filed on our behalf. We have been customers for years with GAC for maintenance and with this install, plan to be for years to come."
Additional Photos
40 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
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 - Repair or ServiceWater Heater - Install or Replace

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
17 neighbors recently requested a quote
Recommended by80%of homeowners
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Water Heaters questions, answered by experts

A tankless water heater with a flow rate of 10 GPM should replace a conventional 50-gallon water heater. To avoid a surprise cold shower or two and to keep your energy costs in check, it's important to replace a conventional tanked water heater with the equivalent tankless water heater. Your household size and the number of hot-water-using devices you use at once can help you determine the best-size tankless water heater.

You can and should vent the gas from your hot water heater to the outside of your home. Traditionally, these gases were vented back to other gas appliances, like stoves or furnaces, but many jurisdictions have outlawed this practice due to the risks it provides. 

Most water heaters today use atmospheric venting that exhausts the gas out of the home through a pipe.

Gas water heaters last between eight and 12 years on average. You can help them reach their maximum lifespan with regular cleanings, maintenance, and professional checkups, though don’t hesitate to swing for a full replacement if the total cost of repairs is greater than that of purchasing and installing a new unit. 

A thermocouple is a pretty simple device. It simply tells the control valve if heat is present. Most water heaters can use a universal thermocouple, provided it's the correct length. Getting one that's long enough for your appliance is crucial for success. However, some water heater models require model-specific thermocouples, which is why it's essential to take your existing one to the store to find the right match.

Examples include gas stoves, ovens, and water heaters. Confirm with your provider for specific items.

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.