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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
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

66 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

30 neighbors recently requested a quote
Recommended by7%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

"I recently had a brand new HVAC system installed for both heating and cooling, and I couldn’t be happier with the experience. The team at Comfort Professor was extremely professional from start to finish. They worked efficiently, paid attention to every detail, and left everything spotless when the job was done. The cleanup was perfect, which I really appreciated. Highly recommend them if you’re looking for quality work and a smooth, hassle-free installation!"
10 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
3.9(
24
)
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
329 neighbors recently requested a quote
Recommended by9%of homeowners
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Water Heaters FAQs, answered by experts

A leaking water heater could potentially last for a few weeks or months before you need to repair it. However, it's not advisable to wait too long. Once your water heater starts leaking, it's likely that the underlying cause of the leak is getting worse as time goes on. Without immediate repair, your water heater could fail. Instead of using a leaky water heater, you should turn it off and call a pro to fix it.

You have more options for water heaters than ever before. The best one for your home depends on your hot water usage and budget. Some of the more common types of water heaters are the conventional gas heater, a heat pump water heater, or a tankless heater for smaller homes or those with less water demands. Some uncommon types are solar and point-of-use systems. Some homes may have a combination of two units, such as a large heat pump heater and a backup point-of-use system.

Going from a tank to a tankless water heater is one of the most effective ways to lower your utility bills. The switch also frees up more space and ensures a consistent hot water supply, as the water is heated on an as-needed basis. It costs between $5,400 and $7,400 to install a new tankless water heater. Most installation companies will also help dispose of your old water tank.

The standard copper wire gauge to use with any 30-amp circuit is a 10-gauge wire. The National Electric Code specifies a 10-gauge wire with appliances like water heaters running on 30 amps. If you try to use a smaller gauge wire, such as a 12 gauge, with a 30-amp breaker, you run the risk of the wire overheating and melting or causing a fire. Because of the safety hazards, the gauge of the wire is not an area to try to cut costs when connecting a 30-amp breaker to a water heater.

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.

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.