Top-rated boiler repair pros.

Get matched with top boiler repair pros in Ottawa, IL

Enter your ZIP and get matched with up to 5 pros

Need a pro for your boiler repair project in Ottawa, IL?

Select your specific project to find the pro for you.

TRUSTED BY OTTAWA, IL HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon217
    Verified boiler repairs reviews

Find Boiler repair pros in Ottawa

Avatar for Copper Sky Plumbing

Copper Sky Plumbing

4.97(
37
)
Approved Pro

Copper Sky Plumbing

4.97(
37
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
104 local quotes requested

Family owned and operated. Owner, David Torres is a registered Master Plumber. Licensed, Bonded & Insured. 20 years of experience. Don't get flooded by plumbing problems! We can fix it. *FREE PLUMBING INSPECTION INCLUDED WITH ANY SERVICE*~ Just mention this ad! Copper Sky Plumbing addresses each job with attention to detail and excellent customer service. You can be confident in a company that is honest and fair with the experience to get the job done right the first time. Accepting cash, check or PayPal.

"We had our water softener replaced and it went so smoothly. David and his son did great work and were very flexible with our schedule!"

Matthew C on November 2025

Family owned and operated. Owner, David Torres is a registered Master Plumber. Licensed, Bonded & Insured. 20 years of experience. Don't get flooded by plumbing problems! We can fix it. *FREE PLUMBING INSPECTION INCLUDED WITH ANY SERVICE*~ Just mention this ad! Copper Sky Plumbing addresses each job with attention to detail and excellent customer service. You can be confident in a company that is honest and fair with the experience to get the job done right the first time. Accepting cash, check or PayPal.

"We had our water softener replaced and it went so smoothly. David and his son did great work and were very flexible with our schedule!"

Matthew C on November 2025


Avatar for Renuity

Renuity

5.00(
3
)
Approved Pro

Renuity

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
216 local quotes requested

Founded in 2016, Renuity operates with the belief that everyone deserves to be treated with the utmost honesty and respect. Our dedicated consultants and KOHLER-certified installation specialists work hard to provide customized products at affordable prices. We are proud to use American-engineered products that provide a lifetime of beauty, and with limited lifetime warranties, you can be sure your investment is well-protected. Our goal is always to provide a positive remodeling experience, and everyone on our staff contributes to making sure we do.

"They were able to start project in a timely manner and finished I 1 day."

Donna B on May 2025

Founded in 2016, Renuity operates with the belief that everyone deserves to be treated with the utmost honesty and respect. Our dedicated consultants and KOHLER-certified installation specialists work hard to provide customized products at affordable prices. We are proud to use American-engineered products that provide a lifetime of beauty, and with limited lifetime warranties, you can be sure your investment is well-protected. Our goal is always to provide a positive remodeling experience, and everyone on our staff contributes to making sure we do.

"They were able to start project in a timely manner and finished I 1 day."

Donna B on May 2025


Avatar for R.A. Mechanical, Inc.

R.A. Mechanical, Inc.

4.78(
322
)
Approved Pro

R.A. Mechanical, Inc.

4.78(
322
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
399 local quotes requested

We are dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Rob the owner was awesome, he gave me a firm quote over the phone, and had a service tech at my home in 2 hours. Andrew the tech was very thorough, and preformed a awesome install."

Bob A on October 2025

We are dedicated to providing our clients with the very best in service, installation, and repair to meet your plumbing needs. We specialize in mechanical piping and a variety of residential and commercial services. We take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Rob the owner was awesome, he gave me a firm quote over the phone, and had a service tech at my home in 2 hours. Andrew the tech was very thorough, and preformed a awesome install."

Bob A on October 2025


Avatar for Mid America Basement Systems

Mid America Basement Systems

4.48(
42
)
Approved Pro

Mid America Basement Systems

4.48(
42
)
Approved Pro
Customers say: Quality work
95 local quotes requested
35 years of experience

Got water in your basement? Dealing with a leaky foundation or a wet crawl space? At MidAmerica Basement Systems, we've got you covered. We offer effective solutions to dry out your wet basement, fix your crawl space, and restore the structural integrity of your home. We also specialize in installing seamless gutters to redirect water away from your foundation and provide expert concrete repair to fix cracked walkways, patios, and more. Call us today to find out how we can help! We look forward to earning your business.

"Great communication and timely work"

Robert S on October 2025

Got water in your basement? Dealing with a leaky foundation or a wet crawl space? At MidAmerica Basement Systems, we've got you covered. We offer effective solutions to dry out your wet basement, fix your crawl space, and restore the structural integrity of your home. We also specialize in installing seamless gutters to redirect water away from your foundation and provide expert concrete repair to fix cracked walkways, patios, and more. Call us today to find out how we can help! We look forward to earning your business.

"Great communication and timely work"

Robert S on October 2025


Avatar for Exclusive Masonry & Construction

Exclusive Masonry & Construction

New on AngiNew on Angi
Approved Pro

Exclusive Masonry & Construction

New on AngiNew on Angi
Approved Pro
320 local quotes requested

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!

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!


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
28160 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


Sundown Plumbing and Handyman

No reviews yet

Sundown Plumbing and Handyman

No reviews yet

Sundown Plumbing and Handyman is a small family owned business with over 10 years of experience in the construction field. We can handle all of your small business or residential needs. Specialties include: drywall installation and repairs, painting, plumbing, parking lot painting, furniture building, light installation, door repairs, and more!

Sundown Plumbing and Handyman is a small family owned business with over 10 years of experience in the construction field. We can handle all of your small business or residential needs. Specialties include: drywall installation and repairs, painting, plumbing, parking lot painting, furniture building, light installation, door repairs, and more!


No slag given

No reviews yet

No slag given

No reviews yet

Hello im rick im a welder at heart and do it every day i do have a small welder for small jobs of all kinds .but i guess u can say im like a jack of all trades but master of none but im pretty good at most of the things i do from painting inside and outsides of houses to landscaping lil bricck work .just ask and if i feel comfortable doing what you need ill be sure happy to get it done for you..

Hello im rick im a welder at heart and do it every day i do have a small welder for small jobs of all kinds .but i guess u can say im like a jack of all trades but master of none but im pretty good at most of the things i do from painting inside and outsides of houses to landscaping lil bricck work .just ask and if i feel comfortable doing what you need ill be sure happy to get it done for you..


Avatar for CountyWide HVAC

CountyWide HVAC

No reviews yet

CountyWide HVAC

No reviews yet
Emergency services offered

Countywide HVAC call us for all your heating and cooling needs. Repairs, new installs, maintenance and anything in between. The price you want the service you deserve. 815-357-7442

Countywide HVAC call us for all your heating and cooling needs. Repairs, new installs, maintenance and anything in between. The price you want the service you deserve. 815-357-7442


Different level llc

No reviews yet

Different level llc

No reviews yet
Emergency services offered

We're a small family oriented company that started in 2017, we do general construction inside, and outside, we do it all, remodeling (renovation) is what we specialize in. We take pride in our work we treat your property like its our own to its little final detail we make it perfect

We're a small family oriented company that started in 2017, we do general construction inside, and outside, we do it all, remodeling (renovation) is what we specialize in. We take pride in our work we treat your property like its our own to its little final detail we make it perfect

...
Showing 1-10 of 168
Boiler Repair questions, answered by experts

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

Fixing a radiator is worth it because it costs less than fully replacing it. Sometimes, a little troubleshooting can go a long way. The issue could be as simple as a blown fuse, a malfunctioning thermostat, or a loose valve. Plus, your daily life wouldn’t be too comfortable without a functioning radiator.

If you have multiple radiators, start by bleeding a first-floor radiator that is farthest from the boiler. Work your way toward the boiler on the first floor before moving to the next floor, where you’ll again start by bleeding the radiator farthest from the boiler. Continue this pattern for radiators on each floor until they’ve all been bled.

To maintain a boiler and ensure it works optimally, regularly read the temperature and pressure gauges on the unit to ensure they're within the limits described in your owner's manual. Lubricate the circulating pump according to the manufacturer's instructions. Check the water level in the expansion tank and open the tank valve to drain it if it's more than half full.

You save money on heating oil in a few ways:

  • Make sure your home is well insulated and sealed against drafts and heat leakage.

  • Use a thermostat that’s working properly and calibrated accurately.

  • Increase energy efficiency by insulating your basement and attic.

  • Turn down your thermostat a few degrees.

  • Program your thermostat to lower the heat when you’re not home.

  • Order heating oil during the off-season when prices are likely to be lower.

The Ottawa, IL homeowners’ guide to boiler repairs

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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"