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Water heater installers and replacers in Honolulu

Avatar for Superior Plumbing Service LLC
Superior Plumbing Service LLC
91-0643 Nanaulu St
5.00(
24
)
Approved Pro
Superior Plumbing Service LLC
91-0643 Nanaulu St
5.00(
24
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 local quotes requested

Superior Plumbing Service LLC is an esteemed, locally owned and operated union plumbing contractor, showcasing an impressive 17-year legacy of industry expertise. Our unwavering dedication to delivering unrivaled service underscores our commitment to meeting our customers' needs with the highest levels of professionalism and precision.

"They provided a detailed report on exactly what they would do! They came on time and finished the job in a timely manner!"

Richard A on October 2024

Superior Plumbing Service LLC is an esteemed, locally owned and operated union plumbing contractor, showcasing an impressive 17-year legacy of industry expertise. Our unwavering dedication to delivering unrivaled service underscores our commitment to meeting our customers' needs with the highest levels of professionalism and precision.

"They provided a detailed report on exactly what they would do! They came on time and finished the job in a timely manner!"

Richard A on October 2024


Avatar for Continental Mechanical Services LLC
Continental Mechanical Services LLC
99-1173 Iwaena St
New on HomeAdvisorNew on Angi
Approved Pro
Continental Mechanical Services LLC
99-1173 Iwaena St
New on AngiNew on HomeAdvisor
Approved Pro
17 local quotes requested
10 years of experience

With decades of experience in commercial and industrial projects and services, our company is proud to extend our top-tier mechanical services to residential clients. We specialize in plumbing solutions and backflow inspections as well as air conditioning installation, maintenance, and repair. Our expertise also encompasses HVAC controls, fire protection systems, commercial refrigeration systems and sheet metal work, ensuring comprehensive solutions for your home's needs. Our dedicated team is committed to delivering professional, efficient, and reliable service to enhance the comfort and safety of your residence.?

With decades of experience in commercial and industrial projects and services, our company is proud to extend our top-tier mechanical services to residential clients. We specialize in plumbing solutions and backflow inspections as well as air conditioning installation, maintenance, and repair. Our expertise also encompasses HVAC controls, fire protection systems, commercial refrigeration systems and sheet metal work, ensuring comprehensive solutions for your home's needs. Our dedicated team is committed to delivering professional, efficient, and reliable service to enhance the comfort and safety of your residence.?


Avatar for Steve's Plumbing & A/C Service
Steve's Plumbing & A/C Service
96-1225 Waihona Street, Unit A
4.68(
71
)
Approved Pro
Steve's Plumbing & A/C Service
96-1225 Waihona Street, Unit A
4.68(
71
)
Approved Pro
Customers say: Quick response
226 local quotes requested
38 years of experience

Here at Steve's Plumbing & AC Service, Inc., we are a Maui plumbing and air conditioning contracting company that specializes in AC repair and replacement, plumbing repair, service work, and remodeling. We have the experience, manpower, and inventory necessary to handle any project, no matter whether it is large or small. We are also a family-owned and operated business. We are committed to providing excellent workmanship and high-quality products for every project we undertake. We offer a 100% customer satisfaction guarantee and 24-hour emergency services. Up Front Pricing - You approve the cost before we start the work. We charge by the job, not the hour. No one wants surprises when the job is done! Fast Service, Emergency Service. Radio Dispatched, Fully Stocked Trucks in Your Area Daily. When you have an emergency, you need to know it will be fixed in a hurry. We understand and can be there within hours not days! Trusted and Recommended ,Call Us Today!

"A little expensive, but they work good and quick."

Marie B on February 2025

Here at Steve's Plumbing & AC Service, Inc., we are a Maui plumbing and air conditioning contracting company that specializes in AC repair and replacement, plumbing repair, service work, and remodeling. We have the experience, manpower, and inventory necessary to handle any project, no matter whether it is large or small. We are also a family-owned and operated business. We are committed to providing excellent workmanship and high-quality products for every project we undertake. We offer a 100% customer satisfaction guarantee and 24-hour emergency services. Up Front Pricing - You approve the cost before we start the work. We charge by the job, not the hour. No one wants surprises when the job is done! Fast Service, Emergency Service. Radio Dispatched, Fully Stocked Trucks in Your Area Daily. When you have an emergency, you need to know it will be fixed in a hurry. We understand and can be there within hours not days! Trusted and Recommended ,Call Us Today!

"A little expensive, but they work good and quick."

Marie B on February 2025


Avatar for Allen's Plumbing, Inc.
Allen's Plumbing, Inc.
401 Puuhale Rd
4.27(
127
)
Approved Pro
Allen's Plumbing, Inc.
401 Puuhale Rd
4.27(
127
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
42 years of experience

Serving Hawaii since 1982, Allen's Plumbing proudly serves Oahu and Maui, and specializes in plumbing, drain cleaning, underground, water heating, and water treatment. Call us today to find out more!

"none"

Scott H on November 2023

Serving Hawaii since 1982, Allen's Plumbing proudly serves Oahu and Maui, and specializes in plumbing, drain cleaning, underground, water heating, and water treatment. Call us today to find out more!

"none"

Scott H on November 2023


Avatar for Superior Plumbing Service
Superior Plumbing Service
5.00(
7
)
Approved Pro
Superior Plumbing Service
5.00(
7
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
82 local quotes requested

Superior Plumbing Service is a locally-owned union plumbing contractor with 18+ years of experience servicing the State of Hawaii. Our team is committed to delivering the best plumbing solutions while prioritizing customer satisfaction!

"I called them because I had a leak at my house and the technician found it right away. They repaired the leak and am very happy with the job that they did. They are very knowledgeable and skilled at what they do. I was so impressed with them that I hired them to come back and install three toilets. If you ever need plumbing work done ask for Russell or Nicole. You won’t be disappointed."

Kevin M on December 2024

Superior Plumbing Service is a locally-owned union plumbing contractor with 18+ years of experience servicing the State of Hawaii. Our team is committed to delivering the best plumbing solutions while prioritizing customer satisfaction!

"I called them because I had a leak at my house and the technician found it right away. They repaired the leak and am very happy with the job that they did. They are very knowledgeable and skilled at what they do. I was so impressed with them that I hired them to come back and install three toilets. If you ever need plumbing work done ask for Russell or Nicole. You won’t be disappointed."

Kevin M on December 2024


Avatar for Pipeline Plumbing Oahu L.L.C.
Pipeline Plumbing Oahu L.L.C.
1816 Palolo Ave
4.84(
31
)
Approved Pro
Pipeline Plumbing Oahu L.L.C.
1816 Palolo Ave
4.84(
31
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
401 local quotes requested

Aloha Pipeline Plumbing is a locally owned and operated company. At Pipeline Plumbing, we believe in giving our clients the best options to fit their budget and needs, at costs that rival our competitors. Keeping the spirit of Aloha while providing you with the upmost quality of services without hindering your financial situation. We look forward to your business and hope to achieve an ongoing relationship with our satisfied client. For any questions you may have about our service, contact the number and/or email listed below. Have a blessed day.

"My toilet was clogged and flooded the bathroom. I called Pipeline plumbing showed up on time... It ended up being my kids toy in the toilet!He got it out and reset it Great service !"

Bill B on May 2020

Aloha Pipeline Plumbing is a locally owned and operated company. At Pipeline Plumbing, we believe in giving our clients the best options to fit their budget and needs, at costs that rival our competitors. Keeping the spirit of Aloha while providing you with the upmost quality of services without hindering your financial situation. We look forward to your business and hope to achieve an ongoing relationship with our satisfied client. For any questions you may have about our service, contact the number and/or email listed below. Have a blessed day.

"My toilet was clogged and flooded the bathroom. I called Pipeline plumbing showed up on time... It ended up being my kids toy in the toilet!He got it out and reset it Great service !"

Bill B on May 2020


Avatar for Roto-Rooter Plumbing & Water Cleanup
Roto-Rooter Plumbing & Water Cleanup
2106 Lauwiliwili St
4.40(
63
)
Approved Pro
Roto-Rooter Plumbing & Water Cleanup
2106 Lauwiliwili St
4.40(
63
)
Approved Pro
Customers say: Quality work
351 local quotes requested
90 years of experience

When you need an emergency plumber near me in Honolulu, HI or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"When I was told the cost of the job would be $505.00 plus tax, I was shocked. He told me that the price was set by the company. I had $60 coupon, so it came out $465.00. Since he’s already at my home, I gave him ok. I couldn’t send him back because I was afraid there would be a charge for the visit whether I use his service or not. The job took approximately 30 mins excluding time he spent loading and unloading his tools. I felt so stupid for paying that much for 30 mins job."

Jen K on March 2022

When you need an emergency plumber near me in Honolulu, HI or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"When I was told the cost of the job would be $505.00 plus tax, I was shocked. He told me that the price was set by the company. I had $60 coupon, so it came out $465.00. Since he’s already at my home, I gave him ok. I couldn’t send him back because I was afraid there would be a charge for the visit whether I use his service or not. The job took approximately 30 mins excluding time he spent loading and unloading his tools. I felt so stupid for paying that much for 30 mins job."

Jen K on March 2022


Avatar for JG BUILDERS LLC
JG BUILDERS LLC
5.00(
2
)
Approved Pro
JG BUILDERS LLC
5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
18 years of experience

Bring Your Vision to Life with JG Builders! Whether you’re building a custom home, remodeling your kitchen or bathroom, or expanding with a new addition, JG Builders is here to turn your ideas into reality. With over 15 years of experience, we’re committed to delivering top-quality craftsmanship and integrity in every project. Our Services Include: • Custom Home Construction • Renovations & Additions • Bathroom & Kitchen Remodels • Commercial Build-Outs Licensed, insured, and bonded, we provide peace of mind with every build. Call us today at 808-295-5243 for a FREE estimate and let’s make your dream project happen!

"We did an extensive remodeling of our condo in Waikoloa. JG builders did an outstanding job. Jonathan made several helpful suggestions that helped us turn our nice condo into a real show place and made it more functional as well. We have seen several other projects that JG builders have done and they have all turned out beautifully. JG builders work is high quality and they are great to work with."

Greg J on November 2024

Bring Your Vision to Life with JG Builders! Whether you’re building a custom home, remodeling your kitchen or bathroom, or expanding with a new addition, JG Builders is here to turn your ideas into reality. With over 15 years of experience, we’re committed to delivering top-quality craftsmanship and integrity in every project. Our Services Include: • Custom Home Construction • Renovations & Additions • Bathroom & Kitchen Remodels • Commercial Build-Outs Licensed, insured, and bonded, we provide peace of mind with every build. Call us today at 808-295-5243 for a FREE estimate and let’s make your dream project happen!

"We did an extensive remodeling of our condo in Waikoloa. JG builders did an outstanding job. Jonathan made several helpful suggestions that helped us turn our nice condo into a real show place and made it more functional as well. We have seen several other projects that JG builders have done and they have all turned out beautifully. JG builders work is high quality and they are great to work with."

Greg J on November 2024


Avatar for JRP Construction
JRP Construction
Located In,
5.00(
4
)
Approved Pro
JRP Construction
Located In,
5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
576 local quotes requested

Bringing your dream spaces to life through expert remodeling and construction services in the heart of Honolulu. Contact us today!

"Our renovation went smooth as possible he was great and he worked with us very well and I am happy with his work I will definitely hire him for future projects and recommend him to family and friends thank you very much Ryan and your team was amazing"

Sam h on November 2023

Bringing your dream spaces to life through expert remodeling and construction services in the heart of Honolulu. Contact us today!

"Our renovation went smooth as possible he was great and he worked with us very well and I am happy with his work I will definitely hire him for future projects and recommend him to family and friends thank you very much Ryan and your team was amazing"

Sam h on November 2023


Avatar for All Phases Green Services
All Phases Green Services
Komo Mai Dr
4.82(
28
)
Approved Pro
All Phases Green Services
Komo Mai Dr
4.82(
28
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
478 local quotes requested

With a locally owned and operated company, you can expect friendly, personalized service. All Phases Green Services has been in business for over 20 years and offers great craftsmanship in woodworking, cabinetry, counter-tops and installations. We also specialize in tile installation and renovations.

"Excellent quality work. Eric showed up on time, worked hard. Gave us really good advice. Great communication, very trustworthy. We would hire him again. Very appreciative of the work he did for us."

Thomas H on August 2023

With a locally owned and operated company, you can expect friendly, personalized service. All Phases Green Services has been in business for over 20 years and offers great craftsmanship in woodworking, cabinetry, counter-tops and installations. We also specialize in tile installation and renovations.

"Excellent quality work. Eric showed up on time, worked hard. Gave us really good advice. Great communication, very trustworthy. We would hire him again. Very appreciative of the work he did for us."

Thomas H on August 2023

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Showing 1-10 of 390

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.

The homeowners guide to water heater installations and replacements
From average costs to expert advice, get all the answers you need to get your job done.
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