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Find Tankless water heater installers in Black Diamond

Avatar for Harts Plumbers, Electricians, & HVAC Technicians

Harts Plumbers, Electricians, & HVAC Technicians

4.72(
893
)
Approved Pro

Harts Plumbers, Electricians, & HVAC Technicians

4.72(
893
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
371 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. Trust Harts Plumbers, Electricians, & HVAC Technicians for professional and friendly service for all your plumbing, electrical, & HVAC projects. Call us today!

"He was very knowledgeable and efficient and resolved problem"

Mara M on January 2026

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. Trust Harts Plumbers, Electricians, & HVAC Technicians for professional and friendly service for all your plumbing, electrical, & HVAC projects. Call us today!

"He was very knowledgeable and efficient and resolved problem"

Mara M on January 2026


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4.32(
354
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4.32(
354
)
Approved Pro
Customers say: Quick response
30 local quotes requested
91 years of experience

Seattle's varied neighborhoods present unique plumbing challenges, from aging pipes in Ballard's historic homes to advanced plumbing systems in South Lake Union's new buildings. Roto-Rooter's experienced plumbing technicians deliver immediate solutions throughout these communities, equipped with professional-grade tools for any emergency repair. Our 24-hour licensed plumbers respond quickly with transparent pricing and guaranteed work, available every day of the year. When plumbing emergencies strike your home, trust Seattle's most reliable plumbers, call (206) 935-6600 for immediate assistance.

"My elderly mother is partially blind and disabled. On November 1, 2021 her washing machine broke leaking water in her home. In desperation she called rotor rooter. Roto rooter came out, stopped the leak, and put dryers in and left. They returned a few days later to remove the dryers. The technician quoted my mother a cost of about $3000.00. My mother signed a contract but could not see what she was signing. After Roto rooter Reno removed the dryers they sent a bill to my mother for $9000.00. The contract she signed stated Roto rooter would remove walls, roofing, insulation, baseboard, tile etc. Roto rooter didn’t do any of those things. Roto rooter is price gauging and took advantage of an elderly disabled woman. Roto rooter technicians were in the home no more than 3 hours total. First my mother did not have capacity to enter into a contract as she couldn’t see what she was signing. 2 Roto rooters technicians told her the cost would be about $3000.00. 3 Roto rooter did not do the work in the contract. I believe Roto rooter is commuting elder abuse and fraud."

Marcus R on December 2021

Seattle's varied neighborhoods present unique plumbing challenges, from aging pipes in Ballard's historic homes to advanced plumbing systems in South Lake Union's new buildings. Roto-Rooter's experienced plumbing technicians deliver immediate solutions throughout these communities, equipped with professional-grade tools for any emergency repair. Our 24-hour licensed plumbers respond quickly with transparent pricing and guaranteed work, available every day of the year. When plumbing emergencies strike your home, trust Seattle's most reliable plumbers, call (206) 935-6600 for immediate assistance.

"My elderly mother is partially blind and disabled. On November 1, 2021 her washing machine broke leaking water in her home. In desperation she called rotor rooter. Roto rooter came out, stopped the leak, and put dryers in and left. They returned a few days later to remove the dryers. The technician quoted my mother a cost of about $3000.00. My mother signed a contract but could not see what she was signing. After Roto rooter Reno removed the dryers they sent a bill to my mother for $9000.00. The contract she signed stated Roto rooter would remove walls, roofing, insulation, baseboard, tile etc. Roto rooter didn’t do any of those things. Roto rooter is price gauging and took advantage of an elderly disabled woman. Roto rooter technicians were in the home no more than 3 hours total. First my mother did not have capacity to enter into a contract as she couldn’t see what she was signing. 2 Roto rooters technicians told her the cost would be about $3000.00. 3 Roto rooter did not do the work in the contract. I believe Roto rooter is commuting elder abuse and fraud."

Marcus R on December 2021


Avatar for Harts Plumbers, Electricians, & HVAC Technicians

Harts Plumbers, Electricians, & HVAC Technicians

4.71(
865
)
Approved Pro

Harts Plumbers, Electricians, & HVAC Technicians

4.71(
865
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
94 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!

"Harts corrected the location of the crawlspace sump pump discharge line to the location in the foundation which I originally wanted it to be located. However, we did not hear the sump pump operate under the floor when first installed. When the Harts crew changed the location of the pump discharge line, we can now hear the pump very distinctly when it operates, under the floor. I am requesting that Harts come back and listen to see if it is normal for the sump pump to make this much noise."

Jeffry C on January 2026

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!

"Harts corrected the location of the crawlspace sump pump discharge line to the location in the foundation which I originally wanted it to be located. However, we did not hear the sump pump operate under the floor when first installed. When the Harts crew changed the location of the pump discharge line, we can now hear the pump very distinctly when it operates, under the floor. I am requesting that Harts come back and listen to see if it is normal for the sump pump to make this much noise."

Jeffry C on January 2026


Avatar for State Plumbing Utilities LLC

State Plumbing Utilities LLC

5.00(
5
)
Approved Pro

State Plumbing Utilities LLC

5.00(
5
)
Approved Pro
29 local quotes requested
Emergency services offered

We specialize in plumbing services, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They answered my phone and made the appointment for me, really fast. The next day, their technician showed up and got the water heater replaced within an hour. Also, their price is very good compared to other companies. Highly recommend. "

William W on December 2025

We specialize in plumbing services, repairs, inspections, installations, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"They answered my phone and made the appointment for me, really fast. The next day, their technician showed up and got the water heater replaced within an hour. Also, their price is very good compared to other companies. Highly recommend. "

William W on December 2025


Avatar for Cahill's Plumbing & Heating

Cahill's Plumbing & Heating

4.31(
35
)
Approved Pro

Cahill's Plumbing & Heating

4.31(
35
)
Approved Pro
Customers say: Quick response

Cahill's Plumbing & Heating has served the greater Maple Valley, WA area for more than 30 years and is setting new industry standards for plumbing. Our company provides every new and existing client honesty, value and high quality services. Our staff of experienced plumbers and heating contractors works hard to surpass your expectations with both materials and labor. We don't use the "flat-rate" gimmick, but provide prompt, honest service. All work is done by knowledgeable plumbers who are trained to use the best tools available. Our plumbing and heating services include: • All plumbing repairs • Grease trap repair and installation • 24-hour service • Hot water tank and boiler sales • Compressed air piping • Drain cleaning and repair At Cahill's Plumbing & Heating, we use American Standard, Moen, Kohler, Delta and Grohe to complete plumbing repairs and installations. You can depend on us to complete all projects efficiently and on time. We are licensed and insured, and your satisfaction is guaranteed. Call Cahill's Plumbing & Heating today for your next service call and see how we're setting the industry standard for honesty, value and service!

"This was by far the absolute worst experience that I have ever had with any company. The plumber came out for a shower that was not draining. I am on septic and let them know that my septic was just pumped in July. However they wanted to check anyways. After checking under the baffle inspection, I was advised by the plumber that my septic tanks were full and needed to be pumped. I contacted a septic company they came out first thing the next morning and checked my septic tanks, they were not full and ironically enough was able to pull out a huge clog of toilet paper from the baffle. He advised this is something that the plumbers do but since we just had one out the day before and they did told us the wrong information he would happily fix the problem for us. My husband called Riley Cahill (the manger) the next day to try to talk to him about the situation and try to find out why we were charged so much since there was not an itemized receipt. Riley proceeded to get very defense and angry and HUNG UP on my husband. He then called back left a message that saying he will check with his plumbers on Monday and get back to us. Monday morning I called Riley Cahill to have a conversation of what went wrong and how we will remedy the situation. He proceeded to once again get very upset, raise his voice and was insanely disrespectful (telling me to be quiet and stop talking). Then hung up on me as well. After that he called back to tell me I was wrong, and hung up on me again. I told him during the conversation that I was going to warn anyone I could not to use this company through reviews, DO NOT USE THIS COMPANY!!!!"

Samantha F on April 2022

Cahill's Plumbing & Heating has served the greater Maple Valley, WA area for more than 30 years and is setting new industry standards for plumbing. Our company provides every new and existing client honesty, value and high quality services. Our staff of experienced plumbers and heating contractors works hard to surpass your expectations with both materials and labor. We don't use the "flat-rate" gimmick, but provide prompt, honest service. All work is done by knowledgeable plumbers who are trained to use the best tools available. Our plumbing and heating services include: • All plumbing repairs • Grease trap repair and installation • 24-hour service • Hot water tank and boiler sales • Compressed air piping • Drain cleaning and repair At Cahill's Plumbing & Heating, we use American Standard, Moen, Kohler, Delta and Grohe to complete plumbing repairs and installations. You can depend on us to complete all projects efficiently and on time. We are licensed and insured, and your satisfaction is guaranteed. Call Cahill's Plumbing & Heating today for your next service call and see how we're setting the industry standard for honesty, value and service!

"This was by far the absolute worst experience that I have ever had with any company. The plumber came out for a shower that was not draining. I am on septic and let them know that my septic was just pumped in July. However they wanted to check anyways. After checking under the baffle inspection, I was advised by the plumber that my septic tanks were full and needed to be pumped. I contacted a septic company they came out first thing the next morning and checked my septic tanks, they were not full and ironically enough was able to pull out a huge clog of toilet paper from the baffle. He advised this is something that the plumbers do but since we just had one out the day before and they did told us the wrong information he would happily fix the problem for us. My husband called Riley Cahill (the manger) the next day to try to talk to him about the situation and try to find out why we were charged so much since there was not an itemized receipt. Riley proceeded to get very defense and angry and HUNG UP on my husband. He then called back left a message that saying he will check with his plumbers on Monday and get back to us. Monday morning I called Riley Cahill to have a conversation of what went wrong and how we will remedy the situation. He proceeded to once again get very upset, raise his voice and was insanely disrespectful (telling me to be quiet and stop talking). Then hung up on me as well. After that he called back to tell me I was wrong, and hung up on me again. I told him during the conversation that I was going to warn anyone I could not to use this company through reviews, DO NOT USE THIS COMPANY!!!!"

Samantha F on April 2022


Avatar for Hunt's Services

Hunt's Services

4.52(
1,061
)
Approved Pro

Hunt's Services

4.52(
1,061
)
Approved Pro
Customers say: Quality work
85 local quotes requested
14 years of experience

Puget Sound's Home Service Heroes! Offering Plumbing, HVAC, Electrical, Duct & Sewer Services Hunt’s Services is a certified and licensed plumbing, heating, cooling, electrical, duct and sewer services company. We offer same day repairs and emergency services, with over 2,600 five-star reviews by our customers in Tacoma, Federal Way, Auburn, Puyallup, South Hill, Kent, Bellevue, Redmond, Seattle, Olympia and the nearby areas. We take pride in serving King, Pierce and parts of Kitsap and Thurston Counties for both residential and commercial needs with honesty, integrity, and dedicated service.

"had a deeply frustrating experience with Hunt’s HVAC Services that reflects a serious lack of professionalism and customer care. They contacted me early last week to schedule service for my HVAC system, and I agreed to their preferred date—the following Monday. I received a confirmation email on Sunday and a reminder Monday morning for the upcoming afternoon appointment. I drove 1.5 hours to the service site, only to be met with confusion and poor communication. When I called at 12:30 to ask for a specific arrival time, I was told the technician would contact me 30 minutes before arriving—but they couldn’t give me a time estimate. I waited another 2.5 hours before receiving a call informing me that no technician would be coming at all. My only options were to reschedule or cancel. I asked to speak with a manager and was placed on long hold. Eventually, I was told the manager was “too busy” to speak with me and would call me later. That call never came. This experience was a complete waste of time and resources, and the lack of accountability was appalling. Hunt’s HVAC Services failed to honor their commitment, communicate effectively, or show basic courtesy. I strongly advise others to stay away from this business."

Faris A on October 2025

Puget Sound's Home Service Heroes! Offering Plumbing, HVAC, Electrical, Duct & Sewer Services Hunt’s Services is a certified and licensed plumbing, heating, cooling, electrical, duct and sewer services company. We offer same day repairs and emergency services, with over 2,600 five-star reviews by our customers in Tacoma, Federal Way, Auburn, Puyallup, South Hill, Kent, Bellevue, Redmond, Seattle, Olympia and the nearby areas. We take pride in serving King, Pierce and parts of Kitsap and Thurston Counties for both residential and commercial needs with honesty, integrity, and dedicated service.

"had a deeply frustrating experience with Hunt’s HVAC Services that reflects a serious lack of professionalism and customer care. They contacted me early last week to schedule service for my HVAC system, and I agreed to their preferred date—the following Monday. I received a confirmation email on Sunday and a reminder Monday morning for the upcoming afternoon appointment. I drove 1.5 hours to the service site, only to be met with confusion and poor communication. When I called at 12:30 to ask for a specific arrival time, I was told the technician would contact me 30 minutes before arriving—but they couldn’t give me a time estimate. I waited another 2.5 hours before receiving a call informing me that no technician would be coming at all. My only options were to reschedule or cancel. I asked to speak with a manager and was placed on long hold. Eventually, I was told the manager was “too busy” to speak with me and would call me later. That call never came. This experience was a complete waste of time and resources, and the lack of accountability was appalling. Hunt’s HVAC Services failed to honor their commitment, communicate effectively, or show basic courtesy. I strongly advise others to stay away from this business."

Faris A on October 2025


Avatar for Evergreen Plumbing Authority/Water Cleanup

Evergreen Plumbing Authority/Water Cleanup

5.00(
7
)
Approved Pro

Evergreen Plumbing Authority/Water Cleanup

5.00(
7
)
Approved Pro
Super Service Award
1 years of experience
Free onsite estimate

Evergreen Plumbing Authority & Water Cleanup is a trusted provider of plumbing, drain cleaning, sewer, and water mitigation services. With 14 years of industry experience, we proudly serve customers in Pierce County, WA, and the surrounding areas. Our mission is to deliver high-quality, reliable, and fairly priced services while supporting the communities we serve. If we are unable to resolve an issue, we take responsibility and ensure you're connected with someone who can.

"They showed up and did the work."

Hugo M on December 2025

Evergreen Plumbing Authority & Water Cleanup is a trusted provider of plumbing, drain cleaning, sewer, and water mitigation services. With 14 years of industry experience, we proudly serve customers in Pierce County, WA, and the surrounding areas. Our mission is to deliver high-quality, reliable, and fairly priced services while supporting the communities we serve. If we are unable to resolve an issue, we take responsibility and ensure you're connected with someone who can.

"They showed up and did the work."

Hugo M on December 2025


Avatar for Plumbing Excellence Northwest, LLC

Plumbing Excellence Northwest, LLC

5.00(
8
)
Approved Pro

Plumbing Excellence Northwest, LLC

5.00(
8
)
Approved Pro
11 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"I had an excellent experience with Jose Plumbing Excellence Northwest. They first helped me fix a leak, and later replaced my water heater when it went out. Both times, they were able to schedule me right away, which I really appreciated. The team was professional, efficient, and made sure everything was done correctly. Their customer service was great from start to finish, and they made the whole process smooth and stress-free. I highly recommend them for any plumbing needs!"

Erica R on November 2025

We are a locally owned and operated company that values honesty and integrity, and treats your project as if it were our own. We offer a variety of services that are customization to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"I had an excellent experience with Jose Plumbing Excellence Northwest. They first helped me fix a leak, and later replaced my water heater when it went out. Both times, they were able to schedule me right away, which I really appreciated. The team was professional, efficient, and made sure everything was done correctly. Their customer service was great from start to finish, and they made the whole process smooth and stress-free. I highly recommend them for any plumbing needs!"

Erica R on November 2025


Avatar for South West Plumbing & Waterheaters, LLC

South West Plumbing & Waterheaters, LLC

4.59(
35
)
Approved Pro

South West Plumbing & Waterheaters, LLC

4.59(
35
)
Approved Pro
Customers say: True professional
143 local quotes requested
46 years of experience

Southwest Plumbing is the 1 to call for all of your plumbing, heating, air & electric needs! Our team always provides up-front pricing, so you can be sure there are never any surprises. The team is comprised of a professional customer service team, licensed technicians and effective managers where an expert is never far away! Give us a call today, we are here to serve you!

"Job done efficiently"

Fred P on January 2025

Southwest Plumbing is the 1 to call for all of your plumbing, heating, air & electric needs! Our team always provides up-front pricing, so you can be sure there are never any surprises. The team is comprised of a professional customer service team, licensed technicians and effective managers where an expert is never far away! Give us a call today, we are here to serve you!

"Job done efficiently"

Fred P on January 2025


Avatar for South West Plumbing, Heating, Air, & Electric

South West Plumbing, Heating, Air, & Electric

3.58(
133
)
Approved Pro

South West Plumbing, Heating, Air, & Electric

3.58(
133
)
Approved Pro
Customers say: Super punctual
17 local quotes requested
44 years of experience

We have been serving the Greater Puget Sound area since 1982. Today we serve all of King, Pierce, and Snohomish counties. South West focuses on customer service as the differentiating factor between our company and other plumbing, heating, air, and electric contractors in the area. Our expertise, support staff, and quality work will earn your business for years to come.

"This company was helpful in solving my main issue. There were a couple complications but despite that they had good customer service and took care of what I needed."

Michele W on December 2025

We have been serving the Greater Puget Sound area since 1982. Today we serve all of King, Pierce, and Snohomish counties. South West focuses on customer service as the differentiating factor between our company and other plumbing, heating, air, and electric contractors in the area. Our expertise, support staff, and quality work will earn your business for years to come.

"This company was helpful in solving my main issue. There were a couple complications but despite that they had good customer service and took care of what I needed."

Michele W on December 2025

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