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  • Verified reviews icon10
    Verified water heater services reviews

Find Water heater pros in Gray

Wanda's Water Heaters
4.9(
11
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Install+5 more

Serving Gray, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Credit card accepted

"I purchased a heat pump electric water heater to take advantage of a generous rebate from Efficiency Maine. When looking for someone to install it I was referred to Jophil by a real estate company that I know. I called and was given a time that Kyle would arrive to give an estimate and perform the installation (if the estimate was accepted). I did accept the estimate and Kyle got right to work. He did a nice job and made sure that everything was in good working order before he left. I was very pleased with my first experience with this company and would not hesitate to call on them again in the future."
Installation of boiler
Response time5 days
6 neighbors recently requested a quote
Recommended by9%of homeowners
JT Heating Service
4.7(
21
)
Tankless Water Heater - RepairWater Heater - Repair or Service

Serving Gray, ME and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"This was the first time I'd ever had an oil furnace cleaned and serviced. Justin explained everything involved and told me about other services offered by his company. It was a competitive price and I was very happy with the service!"
Response time1 hour
1 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
14
)
Water Heater - Install or ReplaceWater Heater - Install or Replace - For BusinessWater Heater - Repair or Service+1 more

Serving Gray, ME and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I needed my water heater changed out so I reached out to swb and Seth was able to give me a same day quote and give me a time frame on when it could be completed. Got done in a timely manner and very professional work. Definitely will keep using this company for future plumbing/hvac needs."
New condensate line property piped into existing house sewer to code
1 1/2” water mains
3 zone heat pump install
Install condensate pump and neutralizer to bring existing boiler upto code.
1 1/2” water mains insulated after we installed them.

+10

6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Ronald Brown, Plumbing & Heating, Inc.
Ronald Brown, Plumbing & Heating, Inc.
4.1(
28
)
Water Heater - Install or Replace

Serving Gray, ME and surrounding areas

Approved

In business since 1976

Small jobs welcome

Credit card accepted

"Installed a new kitchen faucet and sprayer as well as new supply hoses. The young man had this done in no time at all, was very polite, made sure everything was cleaned up and taken care of when done. Hopefully I won't need to, but, if I should, would definitely use Ronald Brown, Plumbing and Heating again. Thank you."
Response time12 hrs
24 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for SEASIDE HEATING AND COOLING LLC
SEASIDE HEATING AND COOLING LLC
5.0(
5
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+3 more

Serving Gray, ME and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We are extremely passionate about the work that we do. You can depend on us to provide a high quality service at a fair and honest price. We understand that the future of our business depends upon our reputation and that is why customer service is by far our highest priority. If you are looking for a professional you can trust, please call today to schedule a no-obligation estimate!

Bryant heat pump
Bryant gas furnace
New boiler
Hydronic piping
Pump manifold

+1

29 neighbors recently requested a quote
Avatar for Maine-Line Plumbing
Maine-Line Plumbing
5.0(
1
)
Water Heater - Install or ReplaceTankless Water Heater - Install

Serving Gray, ME and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

I am an 8 year plumber with experience in all aspects of plumbing. I am also a member of the Army National guard in which I am a plumber as well. I started my business with having the customer in mind, as well as giving the best possible service that I can to grow my business and to become a bigger part of my community and gain the respect of my peers and the trust of all who choose my business!

Bathroom sink remodel
Bathroom sink remodel
New Build, Addition.
New Build, Addition.
New Build, Addition.

+4

12 neighbors recently requested a quote
Avatar for 207 Plumbing and Heating
207 Plumbing and Heating
3.7(
75
)
Tankless Water Heater - InstallTankless Water Heater - RepairWater Heater - Install or Replace+1 more

Serving Gray, ME and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"Came home on a Tuesday afternoon and found leaking hot water heater. Started to call around. 207 actually answered the phone. Next day (Wed.) the Tech came and quoted me price. Thursday morning the Tech was here installing new water heater. Great work. Thank you."
Response time4 hrs
Recommended by83%of homeowners
Showing 1-10 of 33
Water Heaters questions, answered by experts

Not all types of water heaters require a venting system. Electric tankless water heaters don’t use natural or propane gas, so no venting is required. Instead, they use electric burners to heat water quickly and efficiently. However, any system that does use gas or propane will require ventilation.

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.

When the water expands in a hot water heater, it puts pressure on your hot water pipes and can cause leaks or a rupture in the hot water tank under certain conditions. Pipes or water heaters may split due to the pressure where there is a backflow preventer that prevents the hot water heater from diffusing pressure by releasing water back to the public water line.

In these scenarios, a hot water heater expansion tank provides a place for the hot water heater to relieve pressure and prevent bursts and leaks.

Water expands when heated and also when freezing. When water is heated, it expands by around 4%. For a full water heater, this is one of the main reasons malfunctions occur—the hot water has nowhere else to go but out. Due to the constant expansion and reduction in volume, it’s recommended (required in most places) that an expansion tank be installed.

Electric water heaters typically last 10 to 20 years, though proper maintenance can extend their lifespan. If your unit is over a decade old and showing signs of inefficiency—such as higher energy bills, frequent repairs, or leaks—replacement is a smart investment. Tankless models last over 20 years, which can make them a longer-lasting alternative to traditional tank water heaters.

The Gray, ME homeowners’ guide to water heater services

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