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Water heater installers and replacers in Belfast

Avatar for Fortier’s Plumbing
Fortier’s Plumbing
248 Damascus Rd
5.00(
4
)
Approved Pro
Fortier’s Plumbing
248 Damascus Rd
5.00(
4
)
Approved Pro
Free onsite estimate
Warranties offered

Fortier’s Plumbing is dedicated to delivering top quality plumbing solutions for all. We are here to build relationships with our customers and communities. We look forward to working with you!

"Justin was very professional and took the time to answer any questions I had I would recommend him to anyone needing quality work, his pricing was fair and he did not talk down to me because I'm a woman, which I appreciate greatly"

Amanda S on March 2025

Fortier’s Plumbing is dedicated to delivering top quality plumbing solutions for all. We are here to build relationships with our customers and communities. We look forward to working with you!

"Justin was very professional and took the time to answer any questions I had I would recommend him to anyone needing quality work, his pricing was fair and he did not talk down to me because I'm a woman, which I appreciate greatly"

Amanda S on March 2025


Avatar for Boynton Builders LLC
Boynton Builders LLC
Located In:
5.00(
8
)
Approved Pro
Boynton Builders LLC
Located In:
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
402 local quotes requested

General contracting - including but not limited to; renovations, siding, decking, roofing, kitchens, bathrooms, flooring installation, window installation, insulation, demo & demo removal, etc. Ground work & excavation work also available.

"We had a great experience working with Wes from Boynton Builders LLC! We had a pretty extensive basement remodel / conversion to living space project that we needed help on, and we are extremely happy all aspects of this project using Boynton Builders LLC. Wes responded quickly to a voice message I left, was able to quickly schedule a time to visit to discuss our intended Scope of Work (which also involved another project re-enforcing a carrying beam and support post in our detached garage) after which he quickly provided detailed quote that fortunately fell with our budget. We agreed to move forward, and Wes went to the Town Office for us and took care of the Building Permit and were able to start our project within a couple of weeks and the work proceeded at a good clip with every stage discussed being performed in the order identified from the onset. As the project progressed, we added an additional phase to the scope of work (Install Flooring and a new double door) and he quickly estimated the additional cost got the next phase into his schedule about a week after the completion of the first / original project. Throughout the whole project Wes was pleasant, professional, motivated and productive and open to any requests for change as the space began to be completed and new ideas came into play as we were better able to visualize the final result. Wes completed all of the work on time and within the budget/ and additional scope estimates. We already have the next project planned and will be using Boynton Builders LLC again. Any friends that have seen the completed project state that it is "an incredible transformation" and we are proud to welcome friends into a space that was once an embarrassment. I would also like to mention that I originally reached out and left the same voicemail (one right after the other) for three different contractors and Wes was the only callback received, and that was within a couple hours."

David M on April 2025

General contracting - including but not limited to; renovations, siding, decking, roofing, kitchens, bathrooms, flooring installation, window installation, insulation, demo & demo removal, etc. Ground work & excavation work also available.

"We had a great experience working with Wes from Boynton Builders LLC! We had a pretty extensive basement remodel / conversion to living space project that we needed help on, and we are extremely happy all aspects of this project using Boynton Builders LLC. Wes responded quickly to a voice message I left, was able to quickly schedule a time to visit to discuss our intended Scope of Work (which also involved another project re-enforcing a carrying beam and support post in our detached garage) after which he quickly provided detailed quote that fortunately fell with our budget. We agreed to move forward, and Wes went to the Town Office for us and took care of the Building Permit and were able to start our project within a couple of weeks and the work proceeded at a good clip with every stage discussed being performed in the order identified from the onset. As the project progressed, we added an additional phase to the scope of work (Install Flooring and a new double door) and he quickly estimated the additional cost got the next phase into his schedule about a week after the completion of the first / original project. Throughout the whole project Wes was pleasant, professional, motivated and productive and open to any requests for change as the space began to be completed and new ideas came into play as we were better able to visualize the final result. Wes completed all of the work on time and within the budget/ and additional scope estimates. We already have the next project planned and will be using Boynton Builders LLC again. Any friends that have seen the completed project state that it is "an incredible transformation" and we are proud to welcome friends into a space that was once an embarrassment. I would also like to mention that I originally reached out and left the same voicemail (one right after the other) for three different contractors and Wes was the only callback received, and that was within a couple hours."

David M on April 2025


Conley Inc.
206 Palmer Rd
4.67(
3
)
Approved Pro
Conley Inc.
206 Palmer Rd
4.67(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
213 local quotes requested

Conley Inc. is your trusted partner for all your remodeling needs in Maine. Our team of experts is dedicated to delivering exceptional results that exceed your expectations. With our attention to detail and commitment to quality, we stand out from the competition. Contact us today to transform your home into the space of your dreams.

"Ok. Went past deadline but not their fault… power outages and severe weather."

Martha P on February 2024

Conley Inc. is your trusted partner for all your remodeling needs in Maine. Our team of experts is dedicated to delivering exceptional results that exceed your expectations. With our attention to detail and commitment to quality, we stand out from the competition. Contact us today to transform your home into the space of your dreams.

"Ok. Went past deadline but not their fault… power outages and severe weather."

Martha P on February 2024


Avatar for Tejada's Remodeling Inc
Tejada's Remodeling Inc
5.00(
21
)
Approved Pro
Tejada's Remodeling Inc
5.00(
21
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7625 local quotes requested

Good work guarantee. I love making our customer's happy

"These guys were absolutely amazing. Thank you guys so much for your hard work and helping us out."

Joseph P on May 2025

Good work guarantee. I love making our customer's happy

"These guys were absolutely amazing. Thank you guys so much for your hard work and helping us out."

Joseph P on May 2025


Avatar for Neli Virtual Appliance Repair
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Customers say: Super punctual
54393 local quotes requested
9 years of experience

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"They did fine"

Keavon R on May 2025


K J Dugas Construction Inc.
157 Blue Hill Rd.
4.50(
2
)
K J Dugas Construction Inc.
157 Blue Hill Rd.
4.50(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Here at K.J Dugas we pride ourselves with our commitment to satisfying our customers with our high standards of excellence, and quality and professional service. Check us out and see why I know we’d be the right choice for your next project! Over the past two decades I have strived to build my company and reputation as a hardworking, respected contractor in the small town of Surry, Maine. Today, K.J. Dugas Construction Inc, is home to an average of 20-30 yearly employees, call today!

Here at K.J Dugas we pride ourselves with our commitment to satisfying our customers with our high standards of excellence, and quality and professional service. Check us out and see why I know we’d be the right choice for your next project! Over the past two decades I have strived to build my company and reputation as a hardworking, respected contractor in the small town of Surry, Maine. Today, K.J. Dugas Construction Inc, is home to an average of 20-30 yearly employees, call today!


R&B Builders & Handyman Service
Bangor
No reviews
R&B Builders & Handyman Service
Bangor
No reviews
Free onsite estimate

we cover a wide variety of different kinds of jobs. If there is a job you need done around your house, we are the ones to call.

we cover a wide variety of different kinds of jobs. If there is a job you need done around your house, we are the ones to call.


Solarmarine LLC.
498 Varnumville Rd
No reviews
Solarmarine LLC.
498 Varnumville Rd
No reviews
26 years of experience

30 yrs in the solar Business 15 Years at this location

30 yrs in the solar Business 15 Years at this location


Skidgel Auto Repair
55 Quaker Road
No reviews
Skidgel Auto Repair
55 Quaker Road
No reviews
11 years of experience

We are a full service auto and truck repair facility. Our main focus is accurate billing, great customer service and honest work and labor times. We strive to make our customers happy.

We are a full service auto and truck repair facility. Our main focus is accurate billing, great customer service and honest work and labor times. We strive to make our customers happy.


CENTRAL MAINE HOME IMPROVEMENTS
530 RIVER AVE
No reviews
CENTRAL MAINE HOME IMPROVEMENTS
530 RIVER AVE
No reviews
43 years of experience

FRAME TO FINISH, FULLY INSURED

FRAME TO FINISH, FULLY INSURED

...
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Water heater installations and replacements FAQs

You'll need an expansion tank if your home has a closed water system, which is standard in newer homes or those with backflow preventers or pressure regulators. Expanding hot water has nowhere to go in closed systems, creating potentially damaging pressure. The expansion tank provides space for this expanded water, protecting your plumbing system and water heater from premature failure. Many local building codes now require expansion tanks, and some water heater warranties may be voided without one.

For a standard 50-gallon water heater, a two-gallon expansion tank is sufficient. This sizing assumes normal household water pressure between 40 and 60 psi. If your home has higher water pressure (60 to 80 psi), consider upgrading to a slightly larger tank for added protection. The expansion tank's purpose is to accommodate the increased volume that occurs when cold water heats up, which is proportional to your water heater's capacity.

Watch for signs like dripping water around the tank, fluctuating water pressure throughout your home, or unusual noises in your plumbing system. A properly functioning expansion tank should feel light when tapped on the bottom—if it feels heavy or waterlogged, the internal bladder has likely failed. Other indicators include frequent triggering of your temperature and pressure relief valve, visible corrosion on the tank, or unexplained increases in your water bill, suggesting hidden leaks.

Most expansion tanks have a service life of five to 10 years, though some may last up to 12 years or more with proper maintenance. Factors affecting lifespan include water quality, system pressure, installation quality, and tank construction. Hard water areas often see shorter lifespans due to mineral buildup. Regular maintenance checks can help identify potential issues before complete failure. When your water heater is due for replacement, it's wise to replace the expansion tank simultaneously, even if it hasn't failed yet.

A 30-gallon water heater needs an expansion tank if your home has a closed plumbing system. The need for an expansion tank is determined by your plumbing system type rather than water heater size. Even smaller water heaters create thermal expansion when heating water. If your home has a backflow preventer, pressure regulator, or check valve on the main water line, you have a closed system that requires an expansion tank. Check your local plumbing codes, as many jurisdictions now mandate expansion tanks regardless of water heater size.

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