Trusted Oahu Tankless Water Heater Installation

Have you been considering a new tankless water heater in your home? When you need industry-leading tankless water heater installation, you can count on our team at All Aloha Plumbing to deliver results every single time. We are a locally owned and operated plumbing company with a proven track record for dependable tankless water heater services, and we are proud members of the Oahu community. Tankless water heaters make a great addition to any home, but it’s important to use a reputable service provider to get the long-term results you want. When you work with us, you can feel confident that we will always go the extra mile to put a smile on your face.

For complete tankless water heater installation in Oahu get in touch with us today and schedule an appointment.

Tankless Water Heater Basics

There’s a good reason that more and more homeowners in the Oahu area are changing over to tankless water heaters. The tankless water heater is an alternative to conventional hot water tanks, and many homeowners find them far more convenient. Usually, a tankless water heater consists of a smaller unit attached to the wall with heaters that heat up the water directly when you need it. They are often called ‘on-demand’ water heaters because you can have hot water when you need it, and there’s never a fear that the tank is going to empty.

Benefits of Tankless Water Heaters 

When you replace your old water heater with a new tankless version, you’re going to notice a range of exciting benefits that just keep going and going. At All Aloha Plumbing, we can take care of installing a more efficient tankless heater  for you so you have consistent and reliable performance for years to come. Here are some of the benefits our customers express after upgrading to a tankless water heater in their homes:

Improved energy efficiency
Lower monthly bills
A longer life span compared to traditional water heaters
Takes up less space in the house
Far more convenient and less frustrating
More reliable and consistent performance

Why Work with Us?

Working with our team of plumbing experts means you’ll have access to the highest quality team of water heater experts and exceptional customer service that keeps you coming back again and again. We are known as ‘The Plumbers with Aloha’ because we like to embody the spirit of Aloha with all of our services. We will treat you like a member of the family, with respect and humility, from start to finish. Here’s some of what you can expect when you work with us:

24-hour emergency service
Convenient financing options
Honest and upfront pricing with no hidden fees
Courteous plumbers who treat your home with respect
$50 off any plumbing service
$100 off water heater install
$75 off hydro jetting
Senior citizen & military discounts

FAQs

Installing a tankless water heater can be complex and may involve electrical, gas, and plumbing work, depending on the unit and your existing setup. While some experienced DIY enthusiasts might be able to handle the installation, it’s generally recommended to have a professional handle this task for several reasons:

  • Safety: Working with gas lines, electricity, and water connections can be hazardous without proper knowledge and experience.
  • Codes and Permits: Professionals are familiar with local building codes and permit requirements, ensuring your installation is compliant.
  • Warranty: Incorrect installation can void the manufacturer’s warranty, leaving you responsible for any repairs or replacements.
  • Efficiency: Proper installation ensures the unit operates efficiently and provides hot water as expected.
  • Complexity: The intricacies of gas and electrical connections, venting, and water lines require expertise.

Hiring a licensed plumber or contractor ensures a safe, efficient, and compliant installation, reducing the risk of problems and potential hazards.

Yes, a tankless water heater requires special installation considerations compared to traditional tank-style heaters:

  • Gas and Venting: Gas-powered tankless heaters need proper gas supply and venting for combustion. Venting materials must adhere to manufacturer specifications.
  • Electrical Requirements: Electric tankless heaters demand adequate electrical capacity and wiring. Upgrading the electrical system might be necessary.
  • Water Flow: Tankless heaters need sufficient water flow for activation. Upgrading pipes or installing a circulation pump might be required.
  • Location: Proper placement is crucial. Tankless units are often wall-mounted and need to be close to gas, electrical, and water connections.
  • Size Selection: Choosing the right-sized unit is vital to ensure sufficient hot water supply without overburdening the system.
  • Professional Installation: Due to the complexity of these factors, professional installation by a licensed plumber or electrician is recommended.

A professional ensures the tankless water heater is correctly installed, maximizing its efficiency, longevity, and safety.

Installing a tankless hot water heater involves several steps to ensure safe and efficient operation:

  • Select Location: Choose a well-ventilated area close to gas, water, and electrical connections. Ensure clearances according to manufacturer guidelines.
  • Gas Supply: Connect the gas line to the unit, following manufacturer’s instructions. Use appropriate gas connectors and ensure no leaks.
  • Venting: Install vent pipes according to manufacturer specifications, considering proper slope and termination outside.
  • Electrical Connections: If electric, connect the unit to a dedicated circuit using appropriate wiring and breakers.
  • Water Connections: Attach cold-water inlet and hot-water outlet connections, using appropriate fittings. Consider adding a water softener if needed.
  • Mounting: Secure the unit on the wall with appropriate brackets, following manufacturer guidelines.
  • Testing: Turn on water and gas/electricity. Check for leaks, proper venting, and ignition.
  • Flushing: To remove any sediment, flush the unit as recommended by the manufacturer.

Professional installation by a licensed plumber or electrician is recommended to ensure proper installation, adherence to codes, and safe operation of the tankless water heater.

The average cost to install a tankless water heater can vary widely based on factors like the unit’s size, fuel type, complexity of installation, and location. On average, a tankless water heater installation can range from $1,500 to $4,500 or more.

Key cost components include:

  • Unit Cost: Tankless water heaters range in price, with gas units generally being more expensive than electric ones.
  • Installation: Labor costs depend on the complexity of installation, such as venting, gas lines, electrical work, and water connections.
  • Additional Materials: Venting materials, gas lines, and electrical wiring might need upgrades, adding to the cost.
  • Permits and Codes: Obtaining permits and ensuring compliance with local codes can influence costs.
  • Location: Labor rates vary by region, impacting overall expenses.

While tankless water heaters can have higher upfront costs compared to traditional tank-style heaters, they offer energy savings over time and longer lifespans. Consulting with a professional plumber for a tailored estimate based on your specific requirements is recommended.

Are you looking for proven tankless water heater installation in Oahu? get in touch with us today to schedule an appointment.

Book Your Service






    iwa maner
    Overall Amazing & so Professional group of humans at All Aloha Plumbing. From start to finish technicians kept me informed of their every step of progress.If you are ever in need of a plumber do not hesitate to call All Aloha Plumbing. If you are lucky to get these 3 guys Josh, Keoni, & Shack rest assure you will receive top notch service.Mahalo to a Great Team!
    CM Jazz
    Rey provided professional and clear explanations, offering multiple options. He demonstrated experience and skill in the task. He was friendly and approachable, which made it easy for me to ask questions about a topic I knew very little about.
    Henry Jessop
    Absolute descriptive in the issue that needed to be addressed and options for pricing.
    Francis Nakamoto
    All Aloha responded quickly to our needs and found the source of the leak and proposed a repair plan that appears to solve our water leak problem. We haven't proceeded with the job yet but our experience so far has been positive.
    Kathleen Shea
    Ty and Kawika were respectful and informative. Not pushy, but recommended what needs to be done and why. Hope to work with you on in future.
    Destiny Pakele
    Michael explained the problem and fix it without any issues, courteous and professional service.
    kandi amion
    Michael Stoker was fast, effective and friendly. He explained the situation clearly and did the job. Thanks again!!
    Thomas Yokoyama
    Great Service..........Jai was knowledgeable, professional and very courteous! He was able to quickly analyze the problem and give us a solution and a reasonable quote to fix the problem.Very satisfied with the service and will use All Aloha Plumbing and Drain Cleaning again!
    Donna F
    I needed to replace a water heater and having trouble finding a reasonable available plumber on short notice. What I got was much more. An understanding of different types of systems and an adjustment to the water pressure.
    Patricia Seaman
    Deven did a good job fixing our toilet.
    Edwin Yonamine
    Tarren is friendly and professional. He kept us well-informed on his process and explained the estimate in detail. He engaged in a friendly conversation to create a relationship. We enjoyed talking with him and his company. He represented the All Aloha company well.
    Buddy Maunakea
    The plumber Mana was really good and very informative. Hr took the time to answer any and all questions and concerns we had before he started his work... I would recommend this company to anyone who needs plumbing or water heater work
    Rene Tada
    Ty was very professional and did a great job!
    billie bush
    Jai came to the rescue at 10 pm. He checked the situation out and said,”Don’t worry I’m gonna clear this drain for you and get your shower and toilets working again.” Well he kept at it for a while and just like that the clogged drain was clear 👏🏽. I will recommend Jai to everybody!! He came out was so professional about it and got the job done! Much Mahalo’s🤙🏽
    Brian Nanbu
    From the time I first spoke to Gregg to the finished job with Ty, there professionalism shone through!!
    Jeff Tom
    Visiting my mom and she had a leaking bathroom sink faucet, well little more than expected but Michael helped us work through the previous patch. Went the extra mile and was able to get a reasonable price with a guarantee…confident things will work for awhile. Thanks Mike!
    Sophia Wibholm
    Came in the middle of the night and was so friendly and fixed right away, definitely recommend!
    A Sue
    Michael Smoker was very professional and quickly assessed the problem and got the new toilet, replaced and cleaned up really great!!! Greg job!!!!
    Shiloh Francis
    Jai from All Aloha Plumbing was professional and experienced in repairing our leaking pipe. He kept us up to date on his progress and answered all our questions.
    Paul LeBlanc
    Very knowledgeable and kept us informed about our options. Verified cost of services performed before beginning any work. Issue was not a simple problem but it was still resolved quickly.
    Jairus Knudsen
    Very professional and prompt response, Michael was very knowledgeable and was able to offer me solid advice and solution to my problem. Only complaint would be a touch expensive.
    Rei Takayama
    All Aloha Plumbing has exceptional service both through their call center and technicians. Their team of professionals provided seamless and prompt service while giving us different options to not only take care of our program, but also to be proactive in prolonging the lifespan of our lines. Nikki, Greg and Ty along with their whole team were top notch.
    John Beatty
    Tarin Easton did a great job replacing my hot and cold water bathtub faucets and valve stems! He was very professional, proficient, courteous and explained what he was doing every step of the way. Please thank Tarin for a job well done!John BeattyMililani, HI
    Carlton Linda Luka
    Fast. Good. Explain problems and solutionsHire Ty and pay him more
    Cody Ketchum
    Michael Smoker helped us fix our garbage disposal after typical business hours and he was absolutely amazing. He not only was timely with his work but he was very personal and professional. He walked us through the whole process and was informative throughout. Would highly recommend giving this man a raise because he went above and beyond.
    Larry Partida
    Very thorough on the initial plumbing inspection. They found an undiscovered leak under a bathroom sink.
    Wesley Okamoto
    Michael was very personable and professional.
    Heather Smith
    I called with an emergency leak and they scheduled me in for the day. But called back a short time later as they were able to see me sooner! Very professional. Quick, cleaned up, answered all my questions.
    Nicholas Lee
    Tyi from All Aloha Plumbing fixed a leak and seal issue for a toilet at our place of business in HNL Chinatown / Downtown area and was communicative and professional. Tyi clearly explained safety oversights made by the past handyman that we had used to fix a leak issue. Would use All Aloha Plumbing again. Mahalo
    Gabriella Rosen
    From start to finish they did an amazing job! I lost my earring and they responded immediately by sending someone out. Tyler did an amazing job. He found it immediately and was professional. It was easy, quick, positive, and efficient. 10/10 recommend!!
    J Lo
    Thanks to Tarin who was able to come and replace a water heater in a day’s notice. He was expedient and completed the job successfully. Our tenant is now happy that she has hot water.
    Peter Mota
    Mike did a very good job. He’s fast and he’s able to problem solve very well. Changed the water heater nipples to a different material as to prevent corrosion. No leaks… Thxs Mike
    Audrey Sumida
    This is the second time that I'm using this service and very pleased with the outcome. Your technician Jarrett knew within a minute what the problem was and had him work and repair the toilet.
    Stan Yuen
    My parents were very impressed with the service and Aloha . plus they return the following days to assist in issues from the job.
    jcabasug
    they were professional and on time. Michael was thorough and explained everything before work started. He was able to fix our problem, would definitely contact them again.
    Gail Yamamoto
    Deven and Desmond did a great job fixing my water pipes and water heater. Anyone need the best company call All Aloha.
    Charles Takata
    Will call them again if needed.
    William Riddle
    Jai showed up on time and did an excellent job in a timely manner. He explained everything in detail and was very friendly & professional. I would highly recommend this company.
    leilani victor
    Had a water heater melt down and called All Aloha plumbing, and within the hour they were at my home addressing the issue. By the following morning, I had a new water heater and hot water. Extremely professional and very efficient. I will definitely use them again in the future. Thank you so much Tarin.
    Albert Caraang
    Tarin was very knowledgeable, kind, and fast with his work.
    G Keo
    Had a leak on a Sunday afternoon and was able to have someone respond on that same night. I appreciated the professionalism from Nikki and Kawika. I have only gone through the assessment phase but Kawika was patient and thorough with explaining things to me. Very hopeful for good end results. Mahalo
    Courtney Vastyan-Preiss
    Greg and Ty were awesome to work with. So nice and professional!
    Pam G
    Craig the intake person was excellent. He made me feel there was hope I called Fourth of July. My home was flooded and he had a technician came within an hour to assist the issue. They were very friendly, professional and fast.
    Dane Lospoc
    Good service Mahalo 👍
    Rocio Batarse
    Tarin was professional from the moment he introduced himself. His communications skills were excellent, keeping me in the loop with what he found, but most important with resolutions. Tasrin made proposals & we worked together to get things done. I appreciated his documentation. He did excellent work, everything looked pristine after he finished each job, , leaving no trace he had worked in the house! Great job Tarin! I would highly recommend for a plumber! Thx u
    Chris Pinick
    Water heater needed to be replaced as well as hot water line. Bath tub was replaced with stand up shower as well as sink faucet and plumbing. Mana was a solid guy came early, worked late what should have been a three man job Mana did by himself. He even dry walled. Solid job by one solid brahdah.
    colin brede
    Technician very informative to all questions asked, great explanationHe had a dedication to customer satisfaction and there best interest
    Darling Collado
    Very courteous and knowledgeable. They were able to repair all problems in a timely manner. Office staff was helpful in setting up a payment plan as well, in the evening hours no less! Very satisfied with their work. Will use them again.
    Mel Decasa
    Had leaking kitchen faucet with a large sink that needed a professional. Initially the online request sent a confirmation that someone would contact me, but since nobody did, I called, and received an apology, along with the person confirming that it would be noted that the online feature didn't file my request.The next available appointment was 2 days later, though I was put on priority wait list. The next day I got a call that there was an opening, and Teran gave thorough inspection and explanation. I asked if I could add on another sink that was leaking, and Teran said there would be no problem. He also asked if he could inspect the rest of the house. He provided 3 estimates, with the lowest being just for the kitchen faucet. We chose to fix just the Kitchen, though it was helpful to have an assessment of potential problems to watch for. Teran was efficient, friendly, informative, and considerate. We need more like him.
    armando barreiro
    Great service and even better customer service. Tyi was great.
    Kamu Rā
    Tarin did an amazing job. He exceeded our expectation. The resident manager and I (homeowner) appreciated his positive attitude and professionalism. He explained everything to detail and had visuals (pictures) to go along with it. Would highly recommend Tarin working on any job.
    Candace Goo
    Customer service was excellent and someone was able to come by the day I called. Jai was thorough and worked quickly to meet our needs. He did an amazing job and was very easy to work with.
    Lance Moriwaki
    Kai was on time, friendly, professional, and knowledgable.He took the time to explain necessary things, but did not take too long for the overhaul job to be completed. He seemed genuinely happy to be helping me out with my plumbing.
    Chase Conching
    Jai and the entire All Aloha Plumbing group were friendly and professional from day one. They were able to come out on short notice, give me three estimates (with good, better, best options) and perform all the work needed within a 72-hour timespan. No other company I reached out to was able to do that. AAP provided fair and transparent prices, and was even willing to guarantee their work for a much longer time period than their competition. I would highly recommend Jai and the All Aloha Plumbing crew for peace of mind that your plumbing issues will get fixed, for good.
    Jeffrey Acebedo
    All Aloha Plumbing responded to my request on yelp. Heather helped me schedule my appt. Stephanie did a follow up call. My technician Jai was very professional and knowledgeable on my toilet repair, he explained & showed the damages of the toilet. Jai did an excellent job from start to finish. Thank You.
    Diane Shito
    Ty was very helpful and professional. He did excellent work and was very thorough. Very considerate in keeping in mind with my budget. I will definitely recommend All Aloha Plumbing and will definitely call Ty for all my plumbing repairs.
    Dean Yamaguchi
    Ty and Joe were the technicians on the visit. They assessed the problem of a non-draining bathroom sink and while the initial estimate given to clean out the drain was acceptable, they adjusted the charges to reflect time spent to clean the drain which was a pleasant surprise! Also gave a kupuna discount which was also great. Drain runs well now. Guys were on time within the window given and did a great job!
    Emma Toilolo
    Called Saturday, spoke to Stephanie who helped me schedule my repair visit for Monday (only day available because of work) with Ty. Kept me informed and follow up with a call and an email. Tech Ty arrived, assessed the work I wanted/needed done, gave me options and started on the job asap. Replaced old pressure regulator (which was running high) and replaced the old corroded shower water valve (American Standard-no longer available). All done in one day!!Note: developers (Gentry) built with low grade pipes that becomes brittle over time. Ty had to do more than a simple job, putting more doable pipe and connectors. We are at peace knowing the job is done right with warranty to back the work.Mahalo! All Aloha Plumbing, Stephanie and Ty!! Job well done!!
    Kazu Okumura
    Jai was prompt and diagnosed the issue right away. Drain was cleaned in under an hour. Very professional and will call again for future plumbing issues.
    Nancy McClure
    Jai was extremely professional, polite and very clear when explaining the work. I highly recommend him and the company for their services
    Edward Rosas
    James was very pleased professional and friendly and you could tell he knew what he was doing because he worked in a timely manner, 10/10 would use again
    Irma Kaneshiro
    Justin did a fabulous job on my drain and replaced the disposal. He took the time to explain the procedure and cost of the service.Thank you Justin “great job”.
    Helene
    Kai was again punctual, courteous, professional and very knowledgeable. With very thorough work along with explanations and options given, Kai is easy to talk to and trustworthy. Office staff is always friendly and understanding of how stressful plumbing issues can be. Highly recommended All Aloha Plumbing!
    Jennifer Gonzales
    Mana was very informative with what he was doing and why he was doing it. I would highly recommend Hawaii Drain Pros.
    Brenda Palmero
    Technician came in a reasonable time considering it was a Sunday, same day emergency call. Faucet was replaced with no issues. Great Customer Service even after my service call. Would definitely use them for future plumbing issues.
    Christopher Lesnick
    Justin was excellent all around from the coordination and install. Very friendly, open, and timely. Did an entire water heater replacement for us when ours failed. Couldn’t be happier with the service and result. Thanks Justin.
    Darla DeCoito
    Excellent service! Mahalo!
    Michael Tanoue
    Very prompt and friendly service.
    Kaniela Fatt
    Kawika was knowledgeable and professional. Followed his recommendation of flushing the anti-siphon valve instead of replacing. Problem fixed.
    Iii P
    Technician was awesome. Arrived on time, frequently called me to keep me updated. Very professional. Will use again in future and highly recommend
    Lynn Duensing
    Nice guys. Very informative and professional.
    D Gilman
    I was fortunate enough to have Frank dispatched to our property. Not only did he detect and resolve the issue, he educated me and helped me understand things that usually takes years to experience. This was service that I deserve every time I call a contractor. Mahalo HDP🤙🏽
    Arney Kephas
    This Justin is the man. He explained to me different solution to where I have to pick. Overall A+ in my book
    Gerry Tanaka
    Mana is a wonderful, efficient worker!
    TB L
    Fantastic, personable, from the office ladies who took my call to Justin and Rosalinda doing the service call! Cannot say enough good things about them! Customer for life!
    Rebecca Gray
    The receptionist and technicians were friendly and knowledgeable. They gave excellent service and they cleared the difficult drain blockage in the pipes under the house. I gave 4 stars instead of 5 because the price was high.
    Tait Rusnak
    My mother used the service in her Honolulu condominium and was extremely satisfied with both visits - to assess the problem and to reset the toilet.
    Romy M
    Justin was great, and professional
    Wesley Wong
    Excellent knowledge and service.
    Kathy Muller
    Service person was very knowledgeable about our specific issue with drain in pool deck.
    Marcia Moreno
    Very good. Justin answered all my questions, did the job without any problems.
    Vanessa Chatham
    Frank is excellent and very thorough. He will not stop until it's fixed! Excellent and very fast, professional!
    Arlene Nakamura
    Identified problem quickly, explained what why the tub faucet was leaking, and replaced the tub faucet.
    js_loader

    Proudly Serving Oahu and Nearby Areas

    Aiea
    Camp H M Smith
    Ewa Beach
    Fort Shafter
    Haleiwa
    Hauula
    Hickam AFB
    Honolulu
    Kaaawa
    Kahala
    Kahuku
    Kailua
    Kaneohe
    Kapalama
    Kapolei
    Kunia
    Laie
    Makiki
    M C B H Kaneohe Bay
    Mililani
    Pearl City
    Pearl Harbor
    Schofield Barracks
    Tripler Army Medical Center
    Wahiawa
    Waialae
    Waialua
    Waianae
    Waikiki
    Waimanalo
    Waipahu
    Wheeler Army Airfield
    Scroll to Top