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Tankless water heater installers in Seattle

Avatar for HD Partners, LLC
HD Partners, LLC
1141 NW 53rd Street
4.50(
1
)
Approved Pro
HD Partners, LLC
1141 NW 53rd Street
4.50(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online 24/7 or feel free to give us a call today! 206-789-5353 www.hdpartners.net

"Very knowledgeable staff and always open to male new solutions to get the job done!"

Kevin M on April 2023

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online 24/7 or feel free to give us a call today! 206-789-5353 www.hdpartners.net

"Very knowledgeable staff and always open to male new solutions to get the job done!"

Kevin M on April 2023


Avatar for A to Z Plumbing LLC
A to Z Plumbing LLC
2880 Aegean Ct NE
5.00(
3
)
Approved Pro
A to Z Plumbing LLC
2880 Aegean Ct NE
5.00(
3
)
Approved Pro
Customers say: Quick response
3 years of experience
Free onsite estimate

If you're looking for a company that provides premium products, outstanding service, and beautiful outcomes, then look no further than A TO Z PLUMBING LLC. We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work. We offer a range of task's Water tank replacement Water service repair or replacement Repipes Bathroom Tub and shower surround installs Plumbing Renovations Addon Plumbing

"GREAT Company. Alex is very professional and knows what he is doing. They did a perfect job removing old tub/shower installation and installing a new shower. Bath looks great!! Competitively priced too. I highly recommend this company."

Jo A on January 2024

If you're looking for a company that provides premium products, outstanding service, and beautiful outcomes, then look no further than A TO Z PLUMBING LLC. We work closely with each client to understand their unique needs and preferences, and our commitment to customer satisfaction means we won't rest until you are 100% happy with our work. We offer a range of task's Water tank replacement Water service repair or replacement Repipes Bathroom Tub and shower surround installs Plumbing Renovations Addon Plumbing

"GREAT Company. Alex is very professional and knows what he is doing. They did a perfect job removing old tub/shower installation and installing a new shower. Bath looks great!! Competitively priced too. I highly recommend this company."

Jo A on January 2024


Avatar for Harts Plumbers, Electricians, & HVAC Technicians
Harts Plumbers, Electricians, & HVAC Technicians
2502 196th St SW
4.64(
623
)
Approved Pro
Harts Plumbers, Electricians, & HVAC Technicians
2502 196th St SW
4.64(
623
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
568 local quotes requested

Harts is your trusted local provider for all your plumbing, electrical, and HVAC needs. With 10 years of business experience, our certified team specializes in delivering top-quality residential and commercial solutions in the PNW. From emergency repairs to routine maintenance, we pride ourselves on using the latest technology for efficient diagnostics and repairs, ensuring minimal disruption to your daily life. We are known to pay exquisite attention to detail while making your satisfaction our number one priority. Our company has been serving the local community with dedication and professionalism for over a decade. We specialize in a wide range of services, from intricate electrical installations and repairs to comprehensive plumbing work, including leak detection, pipe repairs, fixture installations, and much more. You can trust Harts Plumbers, Electricians, & HVAC Technicians for professional and friendly service for all your plumbing, electrical, & HVAC projects. Call us today!

"Ok"

Kent C on March 2025

Harts is your trusted local provider for all your plumbing, electrical, and HVAC needs. With 10 years of business experience, our certified team specializes in delivering top-quality residential and commercial solutions in the PNW. From emergency repairs to routine maintenance, we pride ourselves on using the latest technology for efficient diagnostics and repairs, ensuring minimal disruption to your daily life. We are known to pay exquisite attention to detail while making your satisfaction our number one priority. Our company has been serving the local community with dedication and professionalism for over a decade. We specialize in a wide range of services, from intricate electrical installations and repairs to comprehensive plumbing work, including leak detection, pipe repairs, fixture installations, and much more. You can trust Harts Plumbers, Electricians, & HVAC Technicians for professional and friendly service for all your plumbing, electrical, & HVAC projects. Call us today!

"Ok"

Kent C on March 2025


Avatar for All Pro Plumbing Northwest, LLC
All Pro Plumbing Northwest, LLC
1902 120th Pl SE STE 102G
4.75(
502
)
Approved Pro
All Pro Plumbing Northwest, LLC
1902 120th Pl SE STE 102G
4.75(
502
)
Approved Pro
Customers say: True professional
142 local quotes requested
31 years of experience

All Pro Plumbing is a locally owned, full-service plumber that has 35 years of experience serving the Puget Sound. We offer expert installation and repair by a team of highly skilled and trained professionals who are the best in the business. As our business grows, we continue to take pride in providing honest work and quality that speaks for itself. The best in town is just a phone call away! **Over the phone quote. General Liability Insurance AM9063777 valid thru 7/01/2018

"Good communication and professional"

Joseph D on March 2025

All Pro Plumbing is a locally owned, full-service plumber that has 35 years of experience serving the Puget Sound. We offer expert installation and repair by a team of highly skilled and trained professionals who are the best in the business. As our business grows, we continue to take pride in providing honest work and quality that speaks for itself. The best in town is just a phone call away! **Over the phone quote. General Liability Insurance AM9063777 valid thru 7/01/2018

"Good communication and professional"

Joseph D on March 2025


Intrepid Mechanical Solutions LLC
914 N Machias Rd
5.00(
1
)
Approved Pro
Intrepid Mechanical Solutions LLC
914 N Machias Rd
5.00(
1
)
Approved Pro
10 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner.

"Intrepid did an incredible job in a time that we really had an emergency. They had our water heater diagnosed and replaced luckily within 24 hours. On top of the urgency that we needed a replacement, the price was really fair. Robert did a great job and was very friendly and professional while working at my house. They left no mess and removed the old water heater. 10/10 would use again"

Marc B on April 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner.

"Intrepid did an incredible job in a time that we really had an emergency. They had our water heater diagnosed and replaced luckily within 24 hours. On top of the urgency that we needed a replacement, the price was really fair. Robert did a great job and was very friendly and professional while working at my house. They left no mess and removed the old water heater. 10/10 would use again"

Marc B on April 2025


Green Planet Plumbing & Sewer LLC
11454 DES MOINES MEMORIAL DR S
4.44(
10
)
Approved Pro
Green Planet Plumbing & Sewer LLC
11454 DES MOINES MEMORIAL DR S
4.44(
10
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
14 local quotes requested

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 20 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"When I needed a major plumbing job I went to Green Planet Plumbing. I found their very impressive ad on the internet, and called for an estimate. Tyler Brown the owner came out and went over the job explaining what they would need to do, the time it would take, and the total cost. I was very impressed with the professional and friendly meeting with Tyler and decided to schedule the job. The day we set up Justin and Mike showed up introduced themselves and went to work. The first day they dug the trench to install a new waterline from the street to the house. The trench was about 40 feet long of very hard digging in rocky ground, and they to my amazement completed it that day. They laid the new pipe the next day, called for the city inspector to come out, and finished the job the next day. My wife and I were very impressed with Justin and Mike and enjoyed talking and spending time with them. I would not hesitate to call Green Planet for my next plumbing job, and will recommend them whenever I can. John Held"

John H on July 2016

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 20 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"When I needed a major plumbing job I went to Green Planet Plumbing. I found their very impressive ad on the internet, and called for an estimate. Tyler Brown the owner came out and went over the job explaining what they would need to do, the time it would take, and the total cost. I was very impressed with the professional and friendly meeting with Tyler and decided to schedule the job. The day we set up Justin and Mike showed up introduced themselves and went to work. The first day they dug the trench to install a new waterline from the street to the house. The trench was about 40 feet long of very hard digging in rocky ground, and they to my amazement completed it that day. They laid the new pipe the next day, called for the city inspector to come out, and finished the job the next day. My wife and I were very impressed with Justin and Mike and enjoyed talking and spending time with them. I would not hesitate to call Green Planet for my next plumbing job, and will recommend them whenever I can. John Held"

John H on July 2016


Avatar for Rescue Rooter Seattle
Rescue Rooter Seattle
175A Roy Rd SW, Suite 101
4.74(
110
)
Approved Pro
Rescue Rooter Seattle
175A Roy Rd SW, Suite 101
4.74(
110
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
259 local quotes requested

The emergency specialists at Rescue Rooter are your best source for comprehensive plumbing and drain cleaning services. You don't have to put up with slow drains, broken water heaters, leaking pipes, or dripping faucets. Our team of emergency specialists can repair your plumbing problems and keep your home or business running smoothly. We can arrange an appointment to fit your schedule. Plus, 60-minute emergency service is available. Remember, "Nobody handles your plumbing disaster faster."

"They did a good job and got someone out quickly."

Zach E on March 2025

The emergency specialists at Rescue Rooter are your best source for comprehensive plumbing and drain cleaning services. You don't have to put up with slow drains, broken water heaters, leaking pipes, or dripping faucets. Our team of emergency specialists can repair your plumbing problems and keep your home or business running smoothly. We can arrange an appointment to fit your schedule. Plus, 60-minute emergency service is available. Remember, "Nobody handles your plumbing disaster faster."

"They did a good job and got someone out quickly."

Zach E on March 2025


Avatar for ALLIANCE PIPEWORKS, LLC
ALLIANCE PIPEWORKS, LLC
2443 N. Lafayette
5.00(
4
)
Approved Pro
ALLIANCE PIPEWORKS, LLC
2443 N. Lafayette
5.00(
4
)
Approved Pro
Free onsite estimate

ALLIANCE PIPEWORKS, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Nick was on time, very professional, and completed the job right on schedule, despite a couple of unforeseen problems. "

Ric A on April 2025

ALLIANCE PIPEWORKS, LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Nick was on time, very professional, and completed the job right on schedule, despite a couple of unforeseen problems. "

Ric A on April 2025


Avatar for Jafco Company
Jafco Company
14058 Aurora Ave N
4.78(
16
)
Approved Pro
Jafco Company
14058 Aurora Ave N
4.78(
16
)
Approved Pro
Super Service Award
Customers say: True professional
224 local quotes requested
8 years of experience

With 25 years of Industry experience we are here for all your Sewer System needs. From installations to repairs we handle it, and being locally owned and operated means that you get the highest quality service and response time every time. Give us a call today for your Sewer System needs!

"They helped fix an emergency sewage backup issue, but the external clean-out point should have been placed at the back-end corner of the house rather than the front. This placement missed access to the back-end area, which could be necessary if a liner installation is needed later. That said, hindsight is 20/20. They did a reasonable job based on their proposal, but at the time, we didn?t have enough knowledge to request a better plan. One issue I encountered was their tendency to revise estimates upward during the project, which I did not appreciate. Additionally, they were uncertain whether the sewage and storm drainage systems in my area were separate or connected. Compared to other providers I worked with later, this suggested a relative lack of experience or knowledge. Another concern was witnessing one of the workers urinating in the hole they had dug during the process. I found this unacceptable and feel it?s worth noting. Finally, I recommend checking out https://lni.wa.gov"

Hanson C on April 2025

With 25 years of Industry experience we are here for all your Sewer System needs. From installations to repairs we handle it, and being locally owned and operated means that you get the highest quality service and response time every time. Give us a call today for your Sewer System needs!

"They helped fix an emergency sewage backup issue, but the external clean-out point should have been placed at the back-end corner of the house rather than the front. This placement missed access to the back-end area, which could be necessary if a liner installation is needed later. That said, hindsight is 20/20. They did a reasonable job based on their proposal, but at the time, we didn?t have enough knowledge to request a better plan. One issue I encountered was their tendency to revise estimates upward during the project, which I did not appreciate. Additionally, they were uncertain whether the sewage and storm drainage systems in my area were separate or connected. Compared to other providers I worked with later, this suggested a relative lack of experience or knowledge. Another concern was witnessing one of the workers urinating in the hole they had dug during the process. I found this unacceptable and feel it?s worth noting. Finally, I recommend checking out https://lni.wa.gov"

Hanson C on April 2025


Avatar for Stream Water Heaters
Stream Water Heaters
14900 Interurban Ave S Ste 271 - 63
4.95(
20
)
Approved Pro
Stream Water Heaters
14900 Interurban Ave S Ste 271 - 63
4.95(
20
)
Approved Pro
Customers say: Quick response
64 local quotes requested
4 years of experience

At Stream Water Heaters, we specialize in providing professional water heater installations, ensuring you receive the best service for tankless, gas, or electric systems at affordable prices. Servicing Snohomish, King, and Pierce counties..

"Super pleased with the fast and flexible service."

Sheila F on April 2025

At Stream Water Heaters, we specialize in providing professional water heater installations, ensuring you receive the best service for tankless, gas, or electric systems at affordable prices. Servicing Snohomish, King, and Pierce counties..

"Super pleased with the fast and flexible service."

Sheila F on April 2025

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Tankless water heater installations FAQs

Yes, although they have a higher upfront cost compared to traditional units, tankless water heaters can be worth the investment for many homeowners. They heat water on demand, eliminating standby energy losses and leading to 24% to 34% greater energy efficiency for homes using up to 41 gallons of hot water daily. Tankless units last longer—around 20 years with proper maintenance—and require less space than traditional units. They also reduce the risk of leaks and water damage since there's no tank to corrode and fail.

Tankless water heaters, including gas-powered models, do require electricity to operate components like the ignition and control systems. This means they won't function during a power outage. If you live in an area prone to outages and want to ensure a continuous hot water supply, consider installing a battery backup system or generator to keep your tankless water heater running when the power goes out.

You should set your tankless water heater to 120 degrees Fahrenheit for optimal safety and efficiency, as recommended by the U.S. Consumer Product Safety Commission. Setting the temperature at 120 degrees prevents scalding accidents, particularly for children and the elderly, and reduces energy consumption. Temperatures above 140 degrees increase the risk of burns and promote mineral buildup, which can decrease the system's efficiency.

A 20-minute shower uses 50 to 60 gallons of water, assuming a flow rate of 2.5 to 3 gallons per minute. A typical whole-house tankless water heater can produce 4 to 8 gallons of hot water per minute, providing continuous hot water for long showers. By installing low-flow showerheads and reducing shower time, you decrease water consumption and energy costs, maximizing the efficiency of your tankless system.

With proper maintenance, a tankless water heater lasts around 20 years, significantly longer than conventional tank water heaters, which last between 8 and 12 years. Regular inspections and timely repairs can further extend its lifespan. To keep your tankless system operating efficiently, have it inspected or serviced annually and address any minor issues promptly by contacting a local tankless water heater repair service.

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