Top-rated boiler repair pros.

Get matched with top boiler repair pros in Darien, IL

There are 37 highly-rated local boiler repair pros.

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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon5k+
    Verified boiler repairs reviews

Find Boiler repair pros in Darien

Avatar for G & R Heating & Air

G & R Heating & Air

4.51(
98
)
Approved Pro

G & R Heating & Air

4.51(
98
)
Approved Pro
Customers say: Super punctual
193 local quotes requested
Free onsite estimate

We are a family owned and operated company, specializing in heating and cooling services, installs, repairs, and more! We personally care for each customer like our own family. 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 of the services we offer below and call -- or-- click to schedule a free estimate today!

"Very impressed with G & R Heating & Air! They arrived on time and got our heater running perfectly. Honest pricing and excellent customer care. Will definitely call them again."

Max G on November 2025

We are a family owned and operated company, specializing in heating and cooling services, installs, repairs, and more! We personally care for each customer like our own family. 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 of the services we offer below and call -- or-- click to schedule a free estimate today!

"Very impressed with G & R Heating & Air! They arrived on time and got our heater running perfectly. Honest pricing and excellent customer care. Will definitely call them again."

Max G on November 2025


Avatar for Drainmaster Sewer and Plumbing LLC

Drainmaster Sewer and Plumbing LLC

5.00(
31
)
Approved Pro

Drainmaster Sewer and Plumbing LLC

5.00(
31
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
41 local quotes requested

We are a Veteran owned and ran company. We provide all types of Plumbing, Sewer and Water services, from repairs to installs. There is no job too small. We have the experience and dedication to get the job done right! Specializing in Plumbing and Sewer services, 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! we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"The pro called me and notified that he would come before the scheduled time. He was respectful, covered his shoes with booties, and listened to the problem before he replaced the flush valve kit in the toilet. It was very promptly done. Happy with the service."

Biswajeet M on November 2025

We are a Veteran owned and ran company. We provide all types of Plumbing, Sewer and Water services, from repairs to installs. There is no job too small. We have the experience and dedication to get the job done right! Specializing in Plumbing and Sewer services, 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! we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click for your FREE estimate today!

"The pro called me and notified that he would come before the scheduled time. He was respectful, covered his shoes with booties, and listened to the problem before he replaced the flush valve kit in the toilet. It was very promptly done. Happy with the service."

Biswajeet M on November 2025


Avatar for Samanco Construction Ltd

Samanco Construction Ltd

4.90(
363
)
Approved Pro

Samanco Construction Ltd

4.90(
363
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
96 local quotes requested

We are a full service contractor striving for 100% satisfaction. We always offer free consultations for any project large or small and are more than happy to make present or recent customer jobs available to visit or contact. Over 30 years of experience and meticulous attention detail mean you can be confident in your remodeling project.

"What can I say about Dan and crew? If there were six stars, I would have given them all of those! Our powder room job was also flooring for the hallway and laundry room, plus a utility sink. It was a total gut job in the bathroom. Dan could not have been nicer, quoted us a more than fair price and the job was finished in record time. He was very responsive to any questions we had (ok mostly me). Also, his workers (2) were fantastic. I'm not sure if I should name them, so I won't. They were efficient and professional, asked questions when needed and cleaned up the site and their work space (our garage) every single day. They treated our home with care, as well as our old appliances and new fixtures. We could not have been happier with all of it."

Lisa A on October 2024

We are a full service contractor striving for 100% satisfaction. We always offer free consultations for any project large or small and are more than happy to make present or recent customer jobs available to visit or contact. Over 30 years of experience and meticulous attention detail mean you can be confident in your remodeling project.

"What can I say about Dan and crew? If there were six stars, I would have given them all of those! Our powder room job was also flooring for the hallway and laundry room, plus a utility sink. It was a total gut job in the bathroom. Dan could not have been nicer, quoted us a more than fair price and the job was finished in record time. He was very responsive to any questions we had (ok mostly me). Also, his workers (2) were fantastic. I'm not sure if I should name them, so I won't. They were efficient and professional, asked questions when needed and cleaned up the site and their work space (our garage) every single day. They treated our home with care, as well as our old appliances and new fixtures. We could not have been happier with all of it."

Lisa A on October 2024


Avatar for Luxury Bath of Chicago

Luxury Bath of Chicago

New on AngiNew on Angi
Approved Pro

Luxury Bath of Chicago

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

Are you in the market for a brand new bathroom—without requiring a sky-high budget? If so, look no further than the pros at Luxury Bath of Chicago / Chicago Bath! In our 20+ years in the industry, we have helped thousands of homeowners in Chicago and throughout the country to make their bathrooms more beautiful, functional and durable than ever before. In as little as one day, we can complete your entire Chicago bathroom remodeling project, from start to finish. Plus, our renovations only cost a fraction of what a more traditional remodel would cost. We are proud to be able to provide the beautiful, functional bathroom products you need for your Chicago bath conversion at the affordable prices you want.

Are you in the market for a brand new bathroom—without requiring a sky-high budget? If so, look no further than the pros at Luxury Bath of Chicago / Chicago Bath! In our 20+ years in the industry, we have helped thousands of homeowners in Chicago and throughout the country to make their bathrooms more beautiful, functional and durable than ever before. In as little as one day, we can complete your entire Chicago bathroom remodeling project, from start to finish. Plus, our renovations only cost a fraction of what a more traditional remodel would cost. We are proud to be able to provide the beautiful, functional bathroom products you need for your Chicago bath conversion at the affordable prices you want.


Avatar for Ideal Home Temperature LLC

Ideal Home Temperature LLC

5.00(
3
)
Approved Pro

Ideal Home Temperature LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

Ideal Home Temperature LLC, with over 15+ years of experience, is a trusted name in the heating, ventilation, and air conditioning (HVAC) industry. Committed to providing reliable and honest services, we specialize in the installation, repair, and maintenance of heating and cooling systems. Our experienced team ensures that your home remains a haven of comfort, regardless of the season. With a focus on excellence, we prioritize customer satisfaction, offering transparent consultations and fair pricing.

"Great experience all around. Lucas was knowledgeable and fixed the issue quickly. Highly recommend, Iâ ll be using them in the future."

Daniel P on April 2024

Ideal Home Temperature LLC, with over 15+ years of experience, is a trusted name in the heating, ventilation, and air conditioning (HVAC) industry. Committed to providing reliable and honest services, we specialize in the installation, repair, and maintenance of heating and cooling systems. Our experienced team ensures that your home remains a haven of comfort, regardless of the season. With a focus on excellence, we prioritize customer satisfaction, offering transparent consultations and fair pricing.

"Great experience all around. Lucas was knowledgeable and fixed the issue quickly. Highly recommend, Iâ ll be using them in the future."

Daniel P on April 2024


Avatar for Bath Care Solutions

Bath Care Solutions

5.00(
1
)
Approved Pro

Bath Care Solutions

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 consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project.

"The works were great"

Dana B on April 2024

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project.

"The works were great"

Dana B on April 2024


Marcus Mechanical

5.00(
2
)
Approved Pro

Marcus Mechanical

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

Marcus Mechanical 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!

"Start with expert knowledge and great service on my A/C and furnace. Marcus Mechanical customer care and attention to detail are awesome. They were so helpful and got the job done in no time!"

Cynthia A on July 2023

Marcus Mechanical 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!

"Start with expert knowledge and great service on my A/C and furnace. Marcus Mechanical customer care and attention to detail are awesome. They were so helpful and got the job done in no time!"

Cynthia A on July 2023


Avatar for Growchy Industries

Growchy Industries

New on AngiNew on Angi
Approved Pro

Growchy Industries

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

With over 15 years of experience in the HVAC industry, Growchy Industries is who you need to take care of your commercial, industrial, and residential mechanical needs. We handle everything from the initial consultation to making sure your equipment runs perfect every single time. You will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

With over 15 years of experience in the HVAC industry, Growchy Industries is who you need to take care of your commercial, industrial, and residential mechanical needs. We handle everything from the initial consultation to making sure your equipment runs perfect every single time. You will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!


JB REFRIGERATION, HEATING AND A/C INC.

New on AngiNew on Angi
Approved Pro

JB REFRIGERATION, HEATING AND A/C INC.

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

JB Refrigeration, Heating & A/C, Inc., was started to give local home owners the choice of a local highly trained professional service tech. We use the latest material to give you satisfaction plus. Call today.

JB Refrigeration, Heating & A/C, Inc., was started to give local home owners the choice of a local highly trained professional service tech. We use the latest material to give you satisfaction plus. Call today.


All Service Calls, LLC

4.98(
33
)
Approved Pro

All Service Calls, LLC

4.98(
33
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
22 years of experience

Here at All Service Calls LLC, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Timely and professional. Responsive and completed the job faster than expected with cleanup. "

Collin C on January 2025

Here at All Service Calls LLC, we pride our company on reliability, great communication, integrity and quality work. We strongly believe in giving our absolute best in all of our projects, no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Timely and professional. Responsive and completed the job faster than expected with cleanup. "

Collin C on January 2025

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Boiler Repair questions, answered by experts

Once you know where your bleed valves are and how to use them, bleeding out heaters is a quick process. Expect it to take around 10 to 20 minutes, possibly longer if you have a lot of heaters or are still learning how they work. If you have a central bleed valve on your boiler, the process still takes the same amount of time. Make sure you have any keys necessary to turn the bleed valves on. Without bleed valves, the process should take around three hours.

If you have a closed-system boiler that needs an expansion tank to work, you cannot run your boiler without it (not without the risk of extensive damage and even explosions). Your options include moving the boiler to another spot, rerouting boiler piping to a more open area, or completing a remodel around the boiler to create more space for the tank.

Leaks, pressure loss, air in the system, burner failures, and thermostat malfunctions are common problems that require professional repair.

It's possible that your oven's gas ignitor will wear out before the rest of the appliance. An ignitor may last about eight years before it needs replacing. In some cases, cleaning the ignitor to remove any built-up food and debris may help to prolong its life. Replacing the ignitor in a gas oven costs an average of $200.

It can be difficult to determine the cause of a coolant leak unless you have the unit inspected by a certified professional. Most coolant leaks are caused by wear and tear on seals and joints. This typically happens five years after a unit is installed. Additionally, faulty or worn compressors, evaporator coils, and condenser coils can also cause leaks.

The Darien, IL homeowners’ guide to boiler repairs

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