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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon165
    Verified boiler repairs reviews

Find Boiler repair pros in Dow

American Airtemp LLC

New on AngiNew on Angi
Approved Pro

American Airtemp LLC

New on AngiNew on Angi
Approved Pro
17 years of experience

American Airtemp 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.

American Airtemp 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.


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4.65(
897
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4.65(
897
)
Approved Pro
Customers say: Quick response
505 local quotes requested
90 years of experience

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"this id the 2nd time that i use Roto rooter and both time the done the job in a timely manor and he told me what he was doing. he was on time and polite and professional, and yes i will hire then again, Thank you. Mike F. "

Mike F on November 2025

When you need an emergency plumber or a drain cleaner, call Roto-Rooter Plumbing & Water Cleanup. Your fast & reliable plumber can fix any plumbing problem, including sump pumps, toilet repair, faucet repair, faucet replacement, garbage disposals, water heaters, bathtubs, showers, and outside faucets. Roto-Rooter is best known for drain cleaning & sewer cleaning. We fix drain clogs, clogged toilets or sinks, blockage of main sewer lines, slow draining shower and bathtub drains, sewer lines and leaking or burst pipes. We also specialize in water damage restoration & water cleanup services. We can fix and clean up your flooded basement too. Roto-Rooter is a 24-hour plumber near you and provides emergency service.

"this id the 2nd time that i use Roto rooter and both time the done the job in a timely manor and he told me what he was doing. he was on time and polite and professional, and yes i will hire then again, Thank you. Mike F. "

Mike F on November 2025


Avatar for Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

4.75(
476
)
Approved Pro

Neli Virtual Appliance Repair

4.75(
476
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
28334 local quotes requested

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Quick and helpful"

Joe U on November 2025

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Quick and helpful"

Joe U on November 2025



Crump HVAC/R and Weatherization

5.00(
1
)

Crump HVAC/R and Weatherization

5.00(
1
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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 our services offered and call or click to schedule an estimate today!

"They did a very good job communicating. Made an agreement and stuck to it. Was very professional and wonderful service. Highly recommend. 10/10"

Jessica I on December 2023

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 our services offered and call or click to schedule an estimate today!

"They did a very good job communicating. Made an agreement and stuck to it. Was very professional and wonderful service. Highly recommend. 10/10"

Jessica I on December 2023


Avatar for Level Above Handyman Company

Level Above Handyman Company

No reviews yet

Level Above Handyman Company

No reviews yet
2 years of experience

No job too small! Paint, drywall patches, laminate flooring, TV mounting, light/fan installs, gutter cleaning, furniture assembly, faucet replacements, and everything else on the Honey-Do list. Are you having trouble with contractors because your job is too small? That's not a problem for me!

No job too small! Paint, drywall patches, laminate flooring, TV mounting, light/fan installs, gutter cleaning, furniture assembly, faucet replacements, and everything else on the Honey-Do list. Are you having trouble with contractors because your job is too small? That's not a problem for me!



Shelby Plumbing, LLC

No reviews yet

Shelby Plumbing, LLC

No reviews yet

We are a family owned and operated plumbing business who pride ourselves in treating our customers like we would our own family. We do service plumbing, new construction, remodeling, etc. Contact us for more information. We would love to work with you!

We are a family owned and operated plumbing business who pride ourselves in treating our customers like we would our own family. We do service plumbing, new construction, remodeling, etc. Contact us for more information. We would love to work with you!


Avatar for Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

No reviews yet

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services

No reviews yet
32 years of experience

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local electricians, plumbers and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, heating, or air conditioning service!

Tiger Plumbing, Heating, Air Conditioning, & Electrical Services takes pride in being your preferred local electricians, plumbers and HVAC technicians! In fact, more homeowners in the St. Louis Metro East & Central Illinois communities we serve, say they would call us again before any other plumbing, heating, or air conditioning service!


Avatar for BFAM Enterprise, LLC

BFAM Enterprise, LLC

5.00(
11
)

BFAM Enterprise, LLC

5.00(
11
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

At BFAM Enterprise, we believe that teamwork and brotherhood are the keys to success. As Brothers From Another Mother, we understand the importance of working together to achieve a common goal. Our team of experts is not only highly skilled, but also works together seamlessly to provide you with the best home repair services possible. We value the brotherhood that we share and bring that same sense of camaraderie to every project we take on. When you choose BFAM Enterprise, you're not just hiring a company, you're joining our family. We take pride in treating our customers like brothers and sisters, and we'll go above and beyond to ensure that you're satisfied with the work we do. So if you're looking for a home repair company that values brotherhood, teamwork, and excellence, look no further than BFAM Enterprise. Contact us today to experience the difference that our sense of camaraderie can make in your home repair project.

"Perfectly Assembled"

Anji W on June 2024

At BFAM Enterprise, we believe that teamwork and brotherhood are the keys to success. As Brothers From Another Mother, we understand the importance of working together to achieve a common goal. Our team of experts is not only highly skilled, but also works together seamlessly to provide you with the best home repair services possible. We value the brotherhood that we share and bring that same sense of camaraderie to every project we take on. When you choose BFAM Enterprise, you're not just hiring a company, you're joining our family. We take pride in treating our customers like brothers and sisters, and we'll go above and beyond to ensure that you're satisfied with the work we do. So if you're looking for a home repair company that values brotherhood, teamwork, and excellence, look no further than BFAM Enterprise. Contact us today to experience the difference that our sense of camaraderie can make in your home repair project.

"Perfectly Assembled"

Anji W on June 2024

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Boiler Repair questions, answered by experts

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.

Regular inspections, filter replacements, and professional tune-ups keep the system running efficiently.

Steam boilers require flushing at least every six to 12 months to keep them operating effectively for as long as possible. Depending on your water quality and frequency of use, you might need to do this more frequently. The flushing process helps to remove problematic buildup of sediments. While a boiler contractor near you can perform a thorough annual flush, learning how to drain the system yourself means you can do this monthly if you experience speedy mineral accumulation because of hard water. 

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.

Addressing gaps and cracks reduces heat loss and improves energy use.

The Dow, IL homeowners’ guide to boiler repairs

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

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