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TRUSTED BY BLACK DIAMOND, WA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon5.1k+
    Verified boiler repairs reviews

Find Boiler repair pros in Black Diamond

Avatar for Ares Comfort Systems

Ares Comfort Systems

4.88(
8
)
Approved Pro

Ares Comfort Systems

4.88(
8
)
Approved Pro
Super Service Award
Customers say: Quality work
259 local quotes requested
1 years of experience

Ares Comfort Systems is a local owned and operated small business. We are focused on residential Heating and Cooling in the Greater Puget Sound Area. As a collection of friends and family who started this company we believe in doing what’s best for our clients not what’s best for us. We believe everyone should feel comfortable in their own home. After all “We fight for your comfort”!

"These guys are amazing 👏. They accomodated an emergency request for a new furnace and heatpump system, pricing was not only competitive, but frankly a better deal overall. They were communicative, punctual, thorough, friendly, and I wish I had hired them the first round for our other home. Glad we found them!"

Tammy _ on October 2025

Ares Comfort Systems is a local owned and operated small business. We are focused on residential Heating and Cooling in the Greater Puget Sound Area. As a collection of friends and family who started this company we believe in doing what’s best for our clients not what’s best for us. We believe everyone should feel comfortable in their own home. After all “We fight for your comfort”!

"These guys are amazing 👏. They accomodated an emergency request for a new furnace and heatpump system, pricing was not only competitive, but frankly a better deal overall. They were communicative, punctual, thorough, friendly, and I wish I had hired them the first round for our other home. Glad we found them!"

Tammy _ on October 2025


Avatar for OPTIMAL SEWER & DRAIN LLC

OPTIMAL SEWER & DRAIN LLC

5.00(
4
)
Approved Pro

OPTIMAL SEWER & DRAIN LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

A family owned business over 10 years of experience, I've done and loved all aspects of this job. We value intigrity and take pride in the attention to detail put into each of the projects we're involved with. We look forward to building long-term relationships with our clients.

"I am very happy with Optimal, the business, the workers, the job & the cleanup. I will certainly use this business again!"

JUDY D on August 2025

A family owned business over 10 years of experience, I've done and loved all aspects of this job. We value intigrity and take pride in the attention to detail put into each of the projects we're involved with. We look forward to building long-term relationships with our clients.

"I am very happy with Optimal, the business, the workers, the job & the cleanup. I will certainly use this business again!"

JUDY D on August 2025


VP Mechanical Plumbers LLC

5.00(
4
)
Approved Pro

VP Mechanical Plumbers LLC

5.00(
4
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

VP Mechanical Plumbers 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

"Victor was a pleasure to work with. He replaced our water heater within a few hours of contacting him. He was responsive and on time. He provided a few options for our job. He charged a very fair price. We will 100% use him again and recommend him."

Teresa E on March 2024

VP Mechanical Plumbers 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

"Victor was a pleasure to work with. He replaced our water heater within a few hours of contacting him. He was responsive and on time. He provided a few options for our job. He charged a very fair price. We will 100% use him again and recommend him."

Teresa E on March 2024


Avatar for L & N Plumbing

L & N Plumbing

5.00(
1
)
Approved Pro

L & N Plumbing

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"My understanding is that the guy that came out to install my new toilet and bidet has actually had more experience with commercial plumbing but you would never know it. He was very personable. Showed up a few minutes late but called and let me know he was running behind and then showed up when he said he would. Very conscientious. Seemed to know what he was doing with the bidet install even though it doesnâ t seem that would be typical for a plumber. Made sure everything worked as it should and then cleaned up after such that my wife couldnâ t even tell work had been done. His prices seemed reasonable. I have him scheduled to replace a water heater soon and just as an example his price is significantly less than the other two bids I got. And Iâ m not sure who it was that called but a few days later a woman called to see if I had had a good experience. Needless to say I answered YES!!"

Mitchell N on September 2023

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. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"My understanding is that the guy that came out to install my new toilet and bidet has actually had more experience with commercial plumbing but you would never know it. He was very personable. Showed up a few minutes late but called and let me know he was running behind and then showed up when he said he would. Very conscientious. Seemed to know what he was doing with the bidet install even though it doesnâ t seem that would be typical for a plumber. Made sure everything worked as it should and then cleaned up after such that my wife couldnâ t even tell work had been done. His prices seemed reasonable. I have him scheduled to replace a water heater soon and just as an example his price is significantly less than the other two bids I got. And Iâ m not sure who it was that called but a few days later a woman called to see if I had had a good experience. Needless to say I answered YES!!"

Mitchell N on September 2023


Avatar for Barneys Plumbing & Sewer LLC

Barneys Plumbing & Sewer LLC

New on AngiNew on Angi
Approved Pro

Barneys Plumbing & Sewer LLC

New on AngiNew on Angi
Approved Pro
5 years of experience
Free onsite estimate

Barney's Plumbing is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

Barney's Plumbing is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!


Avatar for Aces Four Enterprises, LLC

Aces Four Enterprises, LLC

New on AngiNew on Angi
Approved Pro

Aces Four Enterprises, LLC

New on AngiNew on Angi
Approved Pro
47 years of experience
Free onsite estimate

Aces Four Enterprises is a locally owned and family operated company that values honesty and integrity in all aspects of our business. With over 30 years of experience, we pride ourselves on our 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!

Aces Four Enterprises is a locally owned and family operated company that values honesty and integrity in all aspects of our business. With over 30 years of experience, we pride ourselves on our 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!


Avatar for Shelton Construction, LLC

Shelton Construction, LLC

4.92(
19
)
Approved Pro

Shelton Construction, LLC

4.92(
19
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

With over ten years of experience, I have a diverse skill set with a vast array of gifts and talents. From minor repair work to major residential renovation and remodel, I have done it well. My company is licensed, bonded and insured. I perform work for both residential and commercial clients. If a job happens to be outside my wheelhouse or if I think you will be better served by someone else, I will be sure and let you know. Above all else, I strive to deliver superior work while treating my clients with the utmost respect. Please contact me. I look forward to speaking with you regarding your needs and serving you well. At the end, I want you to feel, "I'm glad I worked with Paul!"

"Had some trouble with an outlet that turned out to be some internal wiring issue. Paul worked to diagnose and fix the issue. He also helped resolve some other minor issues I needed help with along the way. Very glad to have the primary issue quickly resolved, and the other tasks taken care of. I enjoyed meeting and talking with Paul, and would recommend and rehire for future projects."

Jim G on April 2025

With over ten years of experience, I have a diverse skill set with a vast array of gifts and talents. From minor repair work to major residential renovation and remodel, I have done it well. My company is licensed, bonded and insured. I perform work for both residential and commercial clients. If a job happens to be outside my wheelhouse or if I think you will be better served by someone else, I will be sure and let you know. Above all else, I strive to deliver superior work while treating my clients with the utmost respect. Please contact me. I look forward to speaking with you regarding your needs and serving you well. At the end, I want you to feel, "I'm glad I worked with Paul!"

"Had some trouble with an outlet that turned out to be some internal wiring issue. Paul worked to diagnose and fix the issue. He also helped resolve some other minor issues I needed help with along the way. Very glad to have the primary issue quickly resolved, and the other tasks taken care of. I enjoyed meeting and talking with Paul, and would recommend and rehire for future projects."

Jim G on April 2025


Avatar for Alpha Bravo Septic and Drainage, Inc.

Alpha Bravo Septic and Drainage, Inc.

4.96(
42
)
Approved Pro

Alpha Bravo Septic and Drainage, Inc.

4.96(
42
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

Welcome to Alpha Bravo Septic and Drainage! We are the experts when it comes to septic systems. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction in which we serve the client from the developmental stages of a project, to final completion. Through ongoing education, training, and cutting edge technology, we bring the latest innovations to your project. Alpha Bravo Septic and Drainage, welcomes the opportunity to assist you with your particular project needs. Give us a call, you'll be glad you did. We look forward to working with you!

"Louis was extremely responsible. I would definitely recommend it."

Charlotte R on November 2023

Welcome to Alpha Bravo Septic and Drainage! We are the experts when it comes to septic systems. Our reputation for quality work, responsiveness, and competitive pricing has been the primary factor in our success. We are committed to client satisfaction in which we serve the client from the developmental stages of a project, to final completion. Through ongoing education, training, and cutting edge technology, we bring the latest innovations to your project. Alpha Bravo Septic and Drainage, welcomes the opportunity to assist you with your particular project needs. Give us a call, you'll be glad you did. We look forward to working with you!

"Louis was extremely responsible. I would definitely recommend it."

Charlotte R on November 2023


Avatar for Rain Pros Inc

Rain Pros Inc

4.87(
389
)
Approved Pro

Rain Pros Inc

4.87(
389
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
130 local quotes requested

Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager ([email protected]). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- [email protected] to immediately cue for with our service department.

"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."

Joan G on September 2025

Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager ([email protected]). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- [email protected] to immediately cue for with our service department.

"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."

Joan G on September 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
207 local quotes requested
45 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

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Boiler Repair questions, answered by experts

The best way to save money on HVAC repairs is by regularly having your system inspected and maintained. This can prevent bigger problems and costly repairs and replacements in the future. It’s also smart to buy quality equipment and hire companies that provide warranties on equipment and labor. If you need repairs, you may be able to save money by cashing in on rebates and incentives or keeping the area around your HVAC unit clear to shorten the time your contractor needs to spend in your home.

The average house radiator has a life span of around 10 to 15 years. However, if you keep up with maintenance, such as bleeding the radiator once per year and removing any signs of rust as needed, your radiator may last 15 to 20 years. Consider hiring a pro to inspect your radiators annually to keep them in the best condition possible.

Costs depend on issue severity, parts needed, and labor rates.

Scale from hard water is hard to diagnose until it starts causing problems. If your area has particularly hard water, that’s most likely what your boiler is using. If scale build-up becomes a problem, it starts to cause decreased flow and heating, and eventually, valve failures as valves become blocked. Let boiler professionals know if you’re worried about scale and they can offer advice or implement a solution.

Boilers are equipped with multiple safety features to ensure safe operation. These include pressure relief valves to prevent overpressure, temperature high-limit switches to avoid overheating, and flame failure safety devices in gas boilers to cut off the gas supply if the flame goes out unexpectedly. Low water cutoffs prevent operation with insufficient water levels, and pressure gauges help monitor pressure levels. Ventilation and flue systems prevent the buildup of harmful gasses. Boilers often feature error code systems for automatic shutdown during malfunctions and gas leak detection for safety. Regular maintenance is crucial to ensure these safety features function correctly.

The Black Diamond, WA homeowners’ guide to boiler repairs

From average costs to expert advice, get all the answers you need to get your job done.