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TRUSTED BY ARNOLD, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon179
    Verified water heater services reviews

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

Avatar for Supreme Service Today
Supreme Service Today
4.4(
479
)
Water Heater - Repair or ServiceTankless Water Heater - Repair

Serving Arnold, MD and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"They were up front with what is wrong. Provided explanation of the quote. Asked permission to get access to places. They explain the reasoning for the cost and the risks if ignored. Pricing was fair. Went above an beyond to solve the water heater issue we had. Even calling in an electrician to help with a fix. They were on-time to early on their scheduled appointments. Excellent customer service."
Response time9 hrs
Response rate100%
80 neighbors recently requested a quote
Avatar for Pohlman Plumbing Inc
Pohlman Plumbing Inc
4.4(
42
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Arnold, MD and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Pohlman responded quickly when my water heater leaked and quickly replaced it at a competitive rate. I asked for multiple quotes and they were one of the first to respond. I appreciate the work, although I would have preferred to know which water heater was being installed before they put it in."
Finished Shower
Finished Shower
Panoramic View
Vanity
Mid-replacement

+10

Response time8 hrs
Response rate97%
Recommended by86%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 Arnold, MD and surrounding areas

Approved

In business since 1994

Emergency services offered

Warranties offered

"I've had Mahon at my house to fix big flood-scale plumbing disasters, and this time it was just a leak under our sink. They were great, and the plumber took the time to explain to us what was wrong, show it to us, and explain what needed to be done to fix it. These guys take care of us and we'll keep calling them in the future if we need a plumber!"
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 Amazing Heating and Air Conditioning, Inc.
Amazing Heating and Air Conditioning, Inc.
4.5(
190
)
Water Heater - Install or Replace

Serving Arnold, MD and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"We are very pleased with our unit and with the service. We had some mix up on the install date but was able to work that out easily. We needed a little extra work done afte the installation and Amazing took care of that in a timely manner. The service man was quite thorough and knowledgeable, with excellent people skills. We would highly reccomend Amazing Heating and AC, Inc."
Rolloff Residence
Rolloff Residence
Rolloff Residence
Rolloff Residence
Jamerson Residence

+5

Response time1 day
48 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Atlantic Blue Water Services
Atlantic Blue Water Services
4.9(
9
)
Water Heater - Install or ReplaceTankless Water Heater - Install

Serving Arnold, MD and surrounding areas

Approved

In business since 2021

Free estimates

Small jobs welcome

Averaging a 4.8-star rating across all review platforms, client satisfaction is our #1 priority! Atlantic Blue Water Services provides the highest quality and most specialized home water treatment systems in today's market. We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Don't settle for anything less than the best for your home or business. Experience the difference with Atlantic Blue Water Services. Contact us now for a free, no-obligation water test and discover why we are the preferred choice for clean water solutions in Maryland. Our experienced team is ready to answer your questions and guide you toward the best water solution for your home or business. We invite you to trust us with your water needs! Water Testing - Water Treatment - Water Softening - Well Water - City Water - Well Pumps - Tanks

Install of the Week
Install of the Week
Water Center
Water Center
Maryland Wine Festival

+5

Response time10 mins
131 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Prime Plumbing, LLC
Prime Plumbing, LLC
4.4(
42
)
Water Heater - Install or ReplaceTankless Water Heater - Repair

Serving Arnold, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Small jobs welcome

Credit card accepted

"Prime Plumbing provided excellent customers service from the beginning to the end. Rob was very thorough when he came out to provide estimate, financing options and gave good explanation of what was needed to replace my direct vent hot water tank for my condo. Rob was also the one who installed the hot water tank and did an excellent job. Direct vent hot water tanks are much more expensive than your standard hot water tank, so it was pricey. I initially found Prime Plumbing on Angie's list and I would recommend them for your plumbing needs. I'm a single female in my early 60's. I did end up using my own financing because their finance company interest rates were way too high for someone with excellent credit. Do rate comparison first."
Septic Pumping
Hydrant Removal
Failed Hydrant
Response time3 hrs
227 neighbors recently requested a quote
Recommended by21%of homeowners
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Water Heaters FAQs, answered by experts

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

A larger heater requires a larger breaker—unless there’s one already installed. The longer answer to this question is more nuanced. Do you place demands on the heater at the same time as running other heavy-duty appliances like ovens and washing machines? Do you live in an older home that may not have considered the higher electrical demands we have now? Breakers need to be sized at 125% of the load. To find that load, you should call a local electrical pro.

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. 

A water heater is one of the heaviest hitters in your home, and it needs as much power as possible to help it run efficiently and effectively.

Your water heater should be on its own dedicated circuit breaker, with no other power sources running to it. This is required to meet the National Electric Code–and to ensure it runs as efficiently as possible.

The average lifespan of a water heater is eight to 12 years. If your water heater is approaching its first decade of life and is giving you problems, talk to a plumber about your replacement options.

Keep in mind that certain parts of a water heater, such as the anode rod, may need replacement long before the heater itself. An anode rod often has a lifespan of three to five years.

The Arnold, MD homeowners’ guide to water heater services

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