Top-rated water heater pros.

Get matched with top water heater pros in Denmark, ME

Enter your zip and get matched with up to 5 pros

Verified Reviews for Water Heater Service pros in Denmark, ME

*The Angi rating for Water Heater Service companies in Denmark, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Denmark, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on November 22, 2025

Find Water heater pros in Denmark

Avatar for AppliancePartsPros.com

AppliancePartsPros.com

4.73(
287
)

AppliancePartsPros.com

4.73(
287
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025

Imperial Plumbing & Heating

5.00(
16
)

Imperial Plumbing & Heating

5.00(
16
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Owner-operated. 2 employees. No subs. Cost is determined by the hour. Travel charges may apply based on the distance of the job.

"Very professionally done, without issue. They provided lots of information and answered all questions as the project progressed (which they managed to get done in a day). Also left the entire area neat and clean, and came back to ensure the removal of the old boiler was done in a cleanly manner. Would definitely recommend Josh and Jeremy."

Andrew D on May 2019

Owner-operated. 2 employees. No subs. Cost is determined by the hour. Travel charges may apply based on the distance of the job.

"Very professionally done, without issue. They provided lots of information and answered all questions as the project progressed (which they managed to get done in a day). Also left the entire area neat and clean, and came back to ensure the removal of the old boiler was done in a cleanly manner. Would definitely recommend Josh and Jeremy."

Andrew D on May 2019

Gelinas HVAC

4.51(
68
)

Gelinas HVAC

4.51(
68
)
Customers say: Super punctual
1994 years of experience

Trust Gelinas. As one of Maine's premier business success stories, Gelinas HVAC Services, Inc. was founded by William Gelinas and Brian McLellan, in 1994 and has experienced steady and solid growth ever since. That growth allows Gelinas to continually expand our services in a way that exceeds expectations of the most discriminating homeowner as well as the most demanding commercial clients. Locally owned & operated. Cost is determined by the job. Service fees may apply. Flat rate for routine service inspections. Additional email - [email protected]. Additional contact names - William Gelinas. Brand - Maytag. Additional service areas - Hollis Center, Kennebunk, Kennebunkport, Ocean Park, Old Orchard Beach, Scarborough, Raymond, Saco, South Freeport, Standish, Steep Falls, Waterboro, Westbrook, Buxton, West Kennebunk, Yarmouth, Portland, Falmouth, South Portland, Cape Elizabeth, Durham. Award winning.

"Very well. Needed a water heat within 4 weeks (so I didn't need to buy more oil and it was installed in 10 days from initial contact. Delivery and install timely, professional and they were very careful to manure the water heater carefully through the house and down very narrow basement stairs and around corners. They listened carefully to my requests, confirmed and kept me informed. The install and plumbing was professionally done and quicker than expected considering the running of new copper lines. Re the post below: I also had hot water off the furnace and was planning on shutting the furnace down. They told me they'd leave the furnace connected to make sure everything worked and was running properly because it took 2 hours to get the water to temperature. When you shut a furnace down you should know that it'll take a service call to start it up again. (It's not a car). I shut mine down 72 hours after install and hope to never try and have it restarted! :-) PS Heat pumps rock! My only criticism is they did not tell me anything about the warranty. I already sort of knew but the paper warranty included with the manual would seem to be all you need when you actually have to go online and register it. Some people wouldn't know that. They did explain/show where the filter was and how to clean it. The office staff was helpful even though I called multiple times for info. Like everyone right now they are swamped with calls and new business and short handed at times. Overall ery happy with my choice of companies!"

Tracey A on June 2022

Trust Gelinas. As one of Maine's premier business success stories, Gelinas HVAC Services, Inc. was founded by William Gelinas and Brian McLellan, in 1994 and has experienced steady and solid growth ever since. That growth allows Gelinas to continually expand our services in a way that exceeds expectations of the most discriminating homeowner as well as the most demanding commercial clients. Locally owned & operated. Cost is determined by the job. Service fees may apply. Flat rate for routine service inspections. Additional email - [email protected]. Additional contact names - William Gelinas. Brand - Maytag. Additional service areas - Hollis Center, Kennebunk, Kennebunkport, Ocean Park, Old Orchard Beach, Scarborough, Raymond, Saco, South Freeport, Standish, Steep Falls, Waterboro, Westbrook, Buxton, West Kennebunk, Yarmouth, Portland, Falmouth, South Portland, Cape Elizabeth, Durham. Award winning.

"Very well. Needed a water heat within 4 weeks (so I didn't need to buy more oil and it was installed in 10 days from initial contact. Delivery and install timely, professional and they were very careful to manure the water heater carefully through the house and down very narrow basement stairs and around corners. They listened carefully to my requests, confirmed and kept me informed. The install and plumbing was professionally done and quicker than expected considering the running of new copper lines. Re the post below: I also had hot water off the furnace and was planning on shutting the furnace down. They told me they'd leave the furnace connected to make sure everything worked and was running properly because it took 2 hours to get the water to temperature. When you shut a furnace down you should know that it'll take a service call to start it up again. (It's not a car). I shut mine down 72 hours after install and hope to never try and have it restarted! :-) PS Heat pumps rock! My only criticism is they did not tell me anything about the warranty. I already sort of knew but the paper warranty included with the manual would seem to be all you need when you actually have to go online and register it. Some people wouldn't know that. They did explain/show where the filter was and how to clean it. The office staff was helpful even though I called multiple times for info. Like everyone right now they are swamped with calls and new business and short handed at times. Overall ery happy with my choice of companies!"

Tracey A on June 2022

Dead River Company

4.92(
12
)

Dead River Company

4.92(
12
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Dead River Company is committed to delivering exceptional customer service and to helping its customers save energy. Maintaining the safety and comfort of customers is of the utmost importance to Dead River Company. To meet that goal, the company promises to respect every customer’s schedule and pay close attention to the details. The company also thoroughly trains its employees requiring them to meet the most rigorous certification standards to perform their jobs. Dead River Company guarantees it will be there delivering on its promises to its customers.

Dead River Company is committed to delivering exceptional customer service and to helping its customers save energy. Maintaining the safety and comfort of customers is of the utmost importance to Dead River Company. To meet that goal, the company promises to respect every customer’s schedule and pay close attention to the details. The company also thoroughly trains its employees requiring them to meet the most rigorous certification standards to perform their jobs. Dead River Company guarantees it will be there delivering on its promises to its customers.

Fontaine HVAC

4.80(
10
)

Fontaine HVAC

4.80(
10
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Fontaine HVAC is a small family owned business which was established 2008. We have grown from 1 employee to 13 employees and two offices (Lewiston/Augusta). Our goal is to try and please our customers.

Fontaine HVAC is a small family owned business which was established 2008. We have grown from 1 employee to 13 employees and two offices (Lewiston/Augusta). Our goal is to try and please our customers.

Avatar for High Tech Home Warranties

High Tech Home Warranties

4.37(
35
)

High Tech Home Warranties

4.37(
35
)
Customers say: Terrific value
2008 years of experience

We are a one stop shop for all your home warranty needs. Our upbeat and friendly support team is always at your fingertips to respond to questions about your warranty 365 days a year! Emergency claims will be addressed within 24 hours from time claim is submitted and non-emergency claims will be addressed within 48 hours Monday - Friday 8:30 am - 6:00 pm. During nights and weekends non-emergency claims will not receive a call back until the next business day. Our service call deductibles range from $65 - $75.

"I had a bad computer board in my oven. they said they would not cover it because they found a roach. This is Florida we have some roaches. i do not have a bug problem. It has nothing to do with a bad computer board. This company looks for a way to deny claims. i had one other claim and they tried to deny it as well. Save yourself some agravation and stay away. They must post their own positive reviews. They took my $65.00 fee and did nothing"

marc g on August 2018

We are a one stop shop for all your home warranty needs. Our upbeat and friendly support team is always at your fingertips to respond to questions about your warranty 365 days a year! Emergency claims will be addressed within 24 hours from time claim is submitted and non-emergency claims will be addressed within 48 hours Monday - Friday 8:30 am - 6:00 pm. During nights and weekends non-emergency claims will not receive a call back until the next business day. Our service call deductibles range from $65 - $75.

"I had a bad computer board in my oven. they said they would not cover it because they found a roach. This is Florida we have some roaches. i do not have a bug problem. It has nothing to do with a bad computer board. This company looks for a way to deny claims. i had one other claim and they tried to deny it as well. Save yourself some agravation and stay away. They must post their own positive reviews. They took my $65.00 fee and did nothing"

marc g on August 2018

Avatar for Crooked River Heating & AC LLC

Crooked River Heating & AC LLC

5.00(
5
)

Crooked River Heating & AC LLC

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Crooked River Heating & A/C, LLC is located in Harrison, Maine. I have been in the heating business since 1995 and I am licensed in both propane/natural gas, oil and air conditioning. I can do all aspects of heating work from tune ups (cleanings) to full installations (boilers, furnaces, heat pumps, radiant heat, snow melt, high effiencey gas boilers and on demand water heaters. Crooked River Heating & A/C, LLC is also an authorized Rinnai dealer. In May of 2015, I have become certified to install A/C!

Crooked River Heating & A/C, LLC is located in Harrison, Maine. I have been in the heating business since 1995 and I am licensed in both propane/natural gas, oil and air conditioning. I can do all aspects of heating work from tune ups (cleanings) to full installations (boilers, furnaces, heat pumps, radiant heat, snow melt, high effiencey gas boilers and on demand water heaters. Crooked River Heating & A/C, LLC is also an authorized Rinnai dealer. In May of 2015, I have become certified to install A/C!

Showing 1-10 of 36
Water Heaters questions, answered by experts

When replacing an old unit, you might want to switch from a gas water heater to an electric water heater or vice versa. To do this, you will likely need to add infrastructure to the area. For example, you likely don’t have a gas line that served your old electric water heater. You’d have to call a plumber to put in a new gas line. If you’re replacing a gas unit with an electric one, the plumber will need to safely cap the old gas line. You will then need an electrician to add wiring for the new electric unit.

When wondering what size of breaker for a water heater is appropriate, the majority of hot water heaters need a 30-amp, two-pole breaker. Most residential water heaters use 240 volts and between 3,500 and 5,500 watts. If your appliance matches these measurements, a 30-amp breaker is likely perfect. Owners of point-of-use water heaters using 120 volts and between 1,500 and 3,000 watts often find that a 30-amp breaker is adequate. Water heaters that use more watts than average may need a 40-amp breaker. Smaller units that use fewer watts could potentially use a 20-amp breaker.

No. Expansion tanks must be installed on the supply side (where heated water flows out) of the boiler. There’s also a list of other requirements for most boilers, including being above the pressure relief valves, being on the inner side of any circulator, and more. Your installation manual should have more information on expansion tank installation requirements and what sort of tank the system is made for.

Replacing facilitates energy savings, decreases repair frequency, and aligns with modern safety regulations, maximizing safety.

Boilers are used mainly for central heating, and water heaters are used for ordinary household water use. In fact, a conventional boiler works best if your home already has a water heater system in place. Sometimes a boiler can be combined with indirect water heaters. But there are also premade combination boiler heaters.

The Denmark, ME homeowners’ guide to water heater services

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

See all articles