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TRUSTED BY GLOUCESTER, MA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon62
    Verified water heater services reviews

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

Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Gloucester, MA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

Additional Photos
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+6

49 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Reservoir Home LLC
Reservoir Home LLC
4.8(
14
)
Water Heater - Install or Replace

Serving Gloucester, MA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Our mission is to make home electrification easy, affordable and awesome. We turn your water heater into a thermal battery. A Reservoir puts a heat pump, an onboard computer and industrial hydronic controls in one unit. It heats and stores water when electricity is cheapest and cleanest and holds it until your house needs it. \n

Reservoir Installs
Reservoir Installs
Reservoir Installs
Reservoir Installs
Reservoir Installs

+5

27 neighbors recently requested a quote
Recommended by7%of homeowners
Avatar for Morris Heating & Air Conditioning
Morris Heating & Air Conditioning
4.8(
81
)
Solar Water Heater System - InstallTankless Water Heater - InstallTankless Water Heater - Install - For Business+6 more

Serving Gloucester, MA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Justin and Cam, the technicians, did a great job. We have an old farmhouse with a very strange configuration of partial crawlspace and partial full basement, and water was leaking through the fieldstone foundation wall from the crawlspace. They quickly diagnosed that the problem was coming from 1 or 2 zones of the hot water radiator heating system, and they were able to shut off those zones to stop the leak, while allowing the house to still use water for sinks, toilets, and showers. We'll have to do more work later to replace pipes to the radiator but, because they are hard to access, we need to plan ahead for some construction work. I'm fully satisfied that these guys were able to find the problem and give us even a temporary solution that allows us to have our working plumbing again without the basement getting wet. Would definitely work with them again."
Additional Photos
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+8

4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Christopher Viscarello Plumbing
Christopher Viscarello Plumbing
4.5(
72
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Repair+1 more

Serving Gloucester, MA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"This is a great company. I have a 2 family with only 1 water heater, and it needed to be replaced. Chris went over all the options with me and explained everything very well. He helped me figure out the best option for my property with no pressure and no upselling. Matt and his helper were extremely professional and helpful when they installed the new unit. I just can't say enough positive things about them all! When it is so tough to know who is trustworthy enough to hire, it is helpful to know that you can trust Viscarello!!!"
High efficient boiler
High efficient boiler
High efficient boiler
High efficient boiler
High efficient tankless

+21

1 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Comfort Professor
Comfort Professor
5.0(
24
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Gloucester, MA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"My AC went out 2 days before a heat wave. I got a detailed estimate right away and signed immediately. The crew showed up next day and worked a long hours replacing all the equipment in the attic. My family was back online just in time to beat the heat. All the staff we worked with were clean, professional , hard-working people. I highly recommend to everyone."
8 neighbors recently requested a quote
Avatar for CS PLUMBING & MECHANICAL LLC
CS PLUMBING & MECHANICAL LLC
5.0(
44
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Repair+2 more

Serving Gloucester, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Cecil is an absolute professional and dedicated this his craft. When a heating system pipe burst in the middle of winter, Cecil was there within the hour to fix it. We have used him several times for repairs and upgrades at our rental units - his work is flawless and his prices are fair."
Water heater placement
Oil fired boiler with tankless hot water
Boiler replacement
Boiler replacement
Boiler replacement

+13

Response time8 hrs
Response rate94%
5 neighbors recently requested a quote
Avatar for ER Services Plumbing and Heating
ER Services Plumbing and Heating
3.8(
23
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Repair+5 more

Serving Gloucester, MA and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

"The young technicians who came to my home to installed the new thermostat and move it to another wall in my home were polite and conducted themselves professionally in my home and cleaned after themselves. I very appreciated Uri suggestion when he recommended to me another alternative at the initial visit and gave me a few quotes to choose from. So I'm very happy with ER service and I would rehired these two individuals back to my home. I will definitely recommend ER to other people in my life."
Gas Lines for Commercial Building
Commercial Kitchen Faucet
Bathroom Finish
Boiler Installation
Shower Stall Finish

+21

Response time6 hrs
333 neighbors recently requested a quote
Recommended by10%of homeowners
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Water Heaters FAQs, answered by experts

Most standard residential water heaters, which are typically around 40 gallons and use 240 volts and between 3,500 and 5,500 watts, require a 30-amp, two-pole circuit breaker. For smaller, point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts, a 30-amp breaker is also often adequate. However, some models may have different needs; units that use more watts than average may require a 40-amp breaker, while smaller units might only need a 20-amp breaker. Newer, tankless, or more energy-efficient models can also require a higher amperage. Having the correct breaker size is crucial for safe and efficient operation, so it's best to consult a licensed electrician to determine the specific needs of your water heater.

Yes, you can replace a current tank water heater with a tankless model or vice versa. If you’re maintaining the same fuel source—gas or electricity—the switchover should be smooth. A conventional tank requires open floor space, while a tankless model can be wall-mounted. If you’re switching to a tank water heater, you might need to clear space for it. Gas-powered tankless water heaters need a large volume of gas when they start running to heat the water instantly. You might need to increase the size of the gas line when going from a tank to a tankless model.

Water heater installation code requirements are in place to keep your family and home safe. Water heaters that are installed wrong can simply not work. However, that's an, if you're lucky, type of situation. More commonly, incorrectly installed water heaters pose a real threat from carbon monoxide poisoning, gas leaks, water leaks, and even explosions. 

Several signs indicate your water heater may be failing or in need of replacement. Key indicators include:

  • Age: A water heater older than ten years is approaching the end of its typical lifespan.

  • Water Quality: If you notice rusty or discolored water from your hot water faucets, or a foul odor similar to rotten eggs or sulfur, it can signal internal corrosion.

  • Unusual Noises: Banging, rumbling, or popping sounds from the tank often mean sediment has built up, causing the unit to overheat.

  • Leaks: Any water pooling around the base of the tank or visible leaks are clear signs of failure.

  • Performance Issues: A decline in performance, such as water not getting hot enough, taking longer to heat up, low water pressure, or decreased efficiency, suggests the unit is struggling.

  • Visible Damage: Obvious rust and corrosion on the exterior of the tank can indicate a more serious internal problem.

While these signs often point to replacement, some issues may be fixable. It's best to consult a professional plumber to diagnose the problem before investing in a new unit.

You should replace your gas water heater when it’s reached the end of its lifespan, which is a maximum of 12 years in most cases. If your unit is over a decade old and showing signs of inefficiency, leaks, or frequent malfunctions, it may be time to replace your water heater. Research how to best maintain your gas water heater to help extend its lifespan.

The Gloucester, MA homeowners’ guide to water heater services

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