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TRUSTED BY POOLESVILLE, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon195
    Verified water heater services reviews

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

Avatar for Fred and Son Plumbing
Fred and Son Plumbing
4.8(
68
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Poolesville, MD and surrounding areas

Approved

In business since 1990

Free estimates

Customers say: True professional

"We have depended on Fred and Son for expert plumbing help for years now. Today it was Joe who did the installation, and we couldn't be happier with his work. Equally important, we appreciate how friendly, considerate, and professional he was throughout his visit. We will continue to have Fred and Joe on speed dial!"
Recommended by100%of homeowners
Avatar for Pipeworks Plumbing, Heating, and Air
Pipeworks Plumbing, Heating, and Air
4.8(
622
)
Water Heater - Repair or Service

Serving Poolesville, MD and surrounding areas

Approved

In business since 2016

Emergency services offered

Small jobs welcome

"Johnny was very professional in performance of the hot water heater installation and helpful in answering all of my questions. Highly recommend the company. Cheers"
Lennox 14ACX (Photo 1)
Lennox XC16
Trane Heat Pump 5
Its the details that count
Lennox 14ACX (Photo 2)

+66

Response time2 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Beacon Home Services, Inc.
Beacon Home Services, Inc.
4.6(
2,092
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+2 more

Serving Poolesville, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Jamie our plumber arrived right on time & very efficiently performed three jobs for us. These included replacing a kitchen disposal, installing a vanity water faucet, flushing the water heater. He patiently explained each task and stayed until all were completed. We were so pleased we've entered into a service contract with Beacon Home Services."
Beacon Home Services - Electric, Plumbing, Drains
New water heater replacement
Our Team
Electrician - Installing 2 new electrical panels
Beacon Home Services - Electrician

+31

Response time30 mins
Response rate100%
545 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.7(
295
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Poolesville, 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
6 neighbors recently requested a quote
Recommended by93%of homeowners
Markool Heating & Cooling, LLC
4.7(
18
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+5 more

Serving Poolesville, MD and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing."
Response time1 day
15 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Atlantic Blue Water Services
Atlantic Blue Water Services
4.8(
124
)
Water Heater - Install or Replace

Serving Poolesville, MD and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"On time, in fact earlier than expected. Courteous technicians. Provided options for repair or replacement and was forthcoming about what he saw. Recommended a highly reviewed water heater. All around excellent."
The Fleet
The Building on Rt. 140
Main water line replacement!
Well Pump Replacement
Training Session!

+22

Response time10 hrs
Response rate88%
79 neighbors recently requested a quote
Avatar for Remedy Plumbing and Drain Cleaning
Remedy Plumbing and Drain Cleaning
4.8(
78
)
Water Heater - Install or ReplaceSolar Water Heater System - InstallTankless Water Heater - Install+6 more

Serving Poolesville, MD and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Mr. Rema arrived on time Sunday morning to update my water heater. He installed an expansion tank, duct work and replacing the piping to the thermostat on the water heater. He did an excellent job and took his time. Mr. Rema also went to the local hardware store twice to pick up the material that was needed. The only reason I didn't give him an A was because he quoted me a price at the beginning and then went done on the price and then tried to go back up to the original quoted price. After talking with him he decided to keep the price at the lower amount that he quoted."
Additional Photos
Additional Photos
10 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for McCarthy Services MD
McCarthy Services MD
4.2(
384
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Poolesville, MD and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Emergency services offered

"Mr. Brian Langford made all the arrangements with the installation of our gas hot water heater from Lowe's via McCarthy plumbing. He was extremely helpful,patient, professional and available to answer all questions. Due to his approach to his work, we will be working with both companies in the future. Only concern I have is the warranty between Lowe's and AO Smith Hot water heaters. Once the heater is installed, Lowe's severs ties. If there is a problem with the hot water heater, you cannot return it to Lowe's although it was purchased through them, this is clearly stated on the Hot water heater in bold writing."
Installing a new A/C system.
Recommended by87%of homeowners
Avatar for Prime Plumbing, LLC
Prime Plumbing, LLC
4.4(
42
)
Water Heater - Install or ReplaceTankless Water Heater - Repair

Serving Poolesville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Small jobs welcome

Credit card accepted

"The technician from Prime Plumbing did a superb job of replacing copper water lines on my yacht. He arrived promptly and was VERY professional! He took the time to analyze the issues, offered an in-depth explanation of the job scope and noted safety features like backflow preventers now available, since she is an older yacht. The technician had to work in a tight space as well. Very methodical, careful, and thorough. Our water system works like NEW again! I would highly recommend Prime Plumbing for any plumbing repairs at our home or yacht!"
Septic Pumping
Hydrant Removal
Failed Hydrant
Response time3 hrs
228 neighbors recently requested a quote
Recommended by21%of homeowners
...
Showing 1-10 of 153
Water Heaters FAQs, answered by experts

Your water heater's age can affect your homeowners' insurance policy. Many policies will ask how old the heater is when you first apply for a policy—and they may make you replace a model that's over 10 years old. 

Even if your policy permits you to have an older heater, it may significantly reduce the amount of protection available. If an older water heater suddenly leaks and causes damage to parts of your home, your policy may not cover it.

No state requires you to vent an electric water heater. Other installation requirements for water heaters will vary, though, depending on the state and local jurisdiction in which you live. Some places require permits, while others don’t. Some may force you to place the appliance a certain distance from any walls or other appliances, while others don't. When you find a local professional to install a water heater, this expert will ensure you follow all the local regulations.

The time it takes to install or replace a water heater depends on the type of heater and the complexity of the job. A professional can typically replace a standard tank-style water heater in one to three hours. However, if the work area is tight, such as a small closet or crawl space, the job could take four to five hours. Replacing an existing tankless unit takes about two to three hours, while upgrading from a tank-style to a tankless water heater is more complex and can take four to six hours. The project will take longer if you are switching fuel sources, such as installing a gas heater which can add about an hour to the timeline, or if the unit needs to be relocated.

While not all homes require a hot water heater expansion tank, they are necessary in most newer homes and are often mandated by local building codes. Codes typically require an expansion tank if your plumbing system is a 'closed-loop' system, which often includes a backflow preventer or pressure regulator on the main water line. Some municipalities have specific requirements. Installing an expansion tank on a closed system is crucial, as it prevents excess pressure that can damage your water heater and other appliances, potentially shortening their lifespan. However, tankless water heaters do not require an expansion tank.

Heat pump water heaters, also known as hybrid water heaters, are the most efficient types of water heaters—both in terms of carbon emission and energy efficiency. This type of water heater utilizes as little as half of the energy of a traditional water heater while releasing no direct emissions. Tankless water heaters are also extremely efficient, although slightly less so than hybrid heaters.

The Poolesville, MD homeowners’ guide to water heater services

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