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Verified Reviews for Gas Leak Repair pros in Mount Carroll, IL

*The Angi rating for Gas Leak Repair companies in Mount Carroll, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Gas Leak Repair needs.

*The HomeAdvisor rating for Gas Leak Repair companies in Mount Carroll, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Gas Leak Repair needs.

Last update on October 06, 2025

Find Gas leak repair technicians in Mount Carroll

R.J. O'Neil, Inc.

1125 S. Lake Street
1.00(
1
)

R.J. O'Neil, Inc.

1125 S. Lake Street
1.00(
1
)
99 years of experience

R.J. O’Neil, Inc. is a small shop with a lot of know-how. Since 1926, R. J. O’Neil, Inc. has been serving Montgomery, IL and the surrounding area. With a team of talented and skilled workers who can solve any plumbing or HVAC issue, it won’t matter if you own a business or if your problem is at home. From installing a faucet in your home or school to plumbing entire buildings, they have done it all. Always reliable and always on call, R.J. O’Neil, Inc. is the first choice in service and ability. Call us at (630)906-1300, email us at [email protected], or feel free to stop in at 1125 S. Lake Street, Montgomery, IL 60538.

"As a small business owner, I strongly caution others against this HVAC/R company. In over 10 years, they?ve been the least trustworthy and poorest performing contractor I?ve worked with. We experienced repeated service issues, a 25% rate hike without notice, ignored emails, and unreturned quote requests. Worse, we were billed for work that wasn?t done?confirmed twice, including by a third-party inspection with photos. Even when confronted, they deflected and delayed for months. We had to hire another company. They also mis-sized a walk-in freezer due to bad measurements and blamed their supplier. When shown proof it was undersized, they argued with no solution. They later mismeasured again on a replacement bid. Their attitude throughout was defensive, unprofessional, and dismissive. If something goes wrong?and it likely will?they will not stand behind their work. Save yourself the frustration and look elsewhere."

Jonathan D on July 2025

R.J. O’Neil, Inc. is a small shop with a lot of know-how. Since 1926, R. J. O’Neil, Inc. has been serving Montgomery, IL and the surrounding area. With a team of talented and skilled workers who can solve any plumbing or HVAC issue, it won’t matter if you own a business or if your problem is at home. From installing a faucet in your home or school to plumbing entire buildings, they have done it all. Always reliable and always on call, R.J. O’Neil, Inc. is the first choice in service and ability. Call us at (630)906-1300, email us at [email protected], or feel free to stop in at 1125 S. Lake Street, Montgomery, IL 60538.

"As a small business owner, I strongly caution others against this HVAC/R company. In over 10 years, they?ve been the least trustworthy and poorest performing contractor I?ve worked with. We experienced repeated service issues, a 25% rate hike without notice, ignored emails, and unreturned quote requests. Worse, we were billed for work that wasn?t done?confirmed twice, including by a third-party inspection with photos. Even when confronted, they deflected and delayed for months. We had to hire another company. They also mis-sized a walk-in freezer due to bad measurements and blamed their supplier. When shown proof it was undersized, they argued with no solution. They later mismeasured again on a replacement bid. Their attitude throughout was defensive, unprofessional, and dismissive. If something goes wrong?and it likely will?they will not stand behind their work. Save yourself the frustration and look elsewhere."

Jonathan D on July 2025

Custom Construction & Remodeling

475 E Court Street - Suite 83
1.00(
2
)

Custom Construction & Remodeling

475 E Court Street - Suite 83
1.00(
2
)
27 years of experience

Custom Construction is a Licensed and Insured FULL SERVICE DESIGN and BUILD Company and General Contractor with a wide range of experience. Interior to Exterior, from A to Z one call does it all. Let our dedicated team of experts make your dreams come true. We handle all types of remodeling. We accept all major credit cards and offer financing for quailifed clients. Emergency 24/7 services available

Custom Construction is a Licensed and Insured FULL SERVICE DESIGN and BUILD Company and General Contractor with a wide range of experience. Interior to Exterior, from A to Z one call does it all. Let our dedicated team of experts make your dreams come true. We handle all types of remodeling. We accept all major credit cards and offer financing for quailifed clients. Emergency 24/7 services available

McDonagh & Sons Plumbing & Sewer Inc

6907 W. Grand Ave
4.86(
51
)

McDonagh & Sons Plumbing & Sewer Inc

6907 W. Grand Ave
4.86(
51
)
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Mcdonagh & sons plumbing & sewer takes great pride with 15 years of experience! We are honest, reliable, genuine and trustworthy! We are constantly referred by our customers because of our great service and dedication to meet their needs! We offer free estimates! "anything plumbing, anything sewer, any time". Ertain areas are to subject a service fee *prices may vary. Discounts can not be combined, unless noted. Award winning. Additional dba - mcdonagh & sons plumbing and sewer.

Mcdonagh & sons plumbing & sewer takes great pride with 15 years of experience! We are honest, reliable, genuine and trustworthy! We are constantly referred by our customers because of our great service and dedication to meet their needs! We offer free estimates! "anything plumbing, anything sewer, any time". Ertain areas are to subject a service fee *prices may vary. Discounts can not be combined, unless noted. Award winning. Additional dba - mcdonagh & sons plumbing and sewer.

Mississippi Valley Construction

2219 College
5.00(
4
)

Mississippi Valley Construction

2219 College
5.00(
4
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a general construction company. We bill after the job is finished and expect payment with in 30 days of bill date. We will finance if it is worked out ahead of time.

We are a general construction company. We bill after the job is finished and expect payment with in 30 days of bill date. We will finance if it is worked out ahead of time.

Heartland Plumbing & Sewer Inc

20 E. Highland Dr.
5.00(
14
)

Heartland Plumbing & Sewer Inc

20 E. Highland Dr.
5.00(
14
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Heartland Plumbing & Sewer, Inc. is a family owned, full-service, modern plumbing company based on simple old fashioned values. Here at Heartland, we strive each and every day to ensure and deliver complete customer satisfaction with honest, professional, courteous service, with the highest level of quality workmanship. Serving residential and commercial customers throughout Illinois, Heartland Plumbing is licensed, bonded and insured for our customer’s protection and peace of mind. We offer quality plumbing services at the most reasonable rates. We also provide same day service! We understand that you have many options when it comes to plumbing contractors. Here at Heartland Plumbing, we excel in helping you solve your plumbing problems and strive to be your plumbing contractor of choice. Heartland Plumbing takes immense pride in the way we take care of our customers, and it is our goal that your choice will be us!

Heartland Plumbing & Sewer, Inc. is a family owned, full-service, modern plumbing company based on simple old fashioned values. Here at Heartland, we strive each and every day to ensure and deliver complete customer satisfaction with honest, professional, courteous service, with the highest level of quality workmanship. Serving residential and commercial customers throughout Illinois, Heartland Plumbing is licensed, bonded and insured for our customer’s protection and peace of mind. We offer quality plumbing services at the most reasonable rates. We also provide same day service! We understand that you have many options when it comes to plumbing contractors. Here at Heartland Plumbing, we excel in helping you solve your plumbing problems and strive to be your plumbing contractor of choice. Heartland Plumbing takes immense pride in the way we take care of our customers, and it is our goal that your choice will be us!

TURNEY Heating/Cooling, Plumbing and Electrical

102 N Washington St
5.00(
1
)

TURNEY Heating/Cooling, Plumbing and Electrical

102 N Washington St
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

TURNEY has been locally owned and operated for 25 years and take pride in doing good quality work at a reasonable price. From new construction to replacement of your existing system we can help. We service all makes and models of equipment. We take pride in being able to handle all of your Heating/Cooling, Plumbing and Electrical needs with just one phone call or email.

TURNEY has been locally owned and operated for 25 years and take pride in doing good quality work at a reasonable price. From new construction to replacement of your existing system we can help. We service all makes and models of equipment. We take pride in being able to handle all of your Heating/Cooling, Plumbing and Electrical needs with just one phone call or email.

Hays Plumbing Co Inc

7010 Fulton Rd
4.87(
67
)

Hays Plumbing Co Inc

7010 Fulton Rd
4.87(
67
)
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Hays Plumbing Co., Inc. has been a family owned and operated company for two generations. We provide a variety of plumbing related services to Springfield and surrounding communities in Central Illinois. Here at Hays Plumbing Co. we specialize in those challenging and tricky plumbing tasks. Some of our specific services include, but are not limited to: -residential plumbing repairs -remodeling and new construction -installation -water heaters -disposers -sump pumps Stop wasting time talking to machines and being just another service call customer. Work with us and get the personalized service with attention to detail you deserve. So next time you are looking for a quality company that will be honest about their recommendations on what will work best for your situation, call Linda Mattson and her crew, to see why they will be around for generations to come.

Hays Plumbing Co., Inc. has been a family owned and operated company for two generations. We provide a variety of plumbing related services to Springfield and surrounding communities in Central Illinois. Here at Hays Plumbing Co. we specialize in those challenging and tricky plumbing tasks. Some of our specific services include, but are not limited to: -residential plumbing repairs -remodeling and new construction -installation -water heaters -disposers -sump pumps Stop wasting time talking to machines and being just another service call customer. Work with us and get the personalized service with attention to detail you deserve. So next time you are looking for a quality company that will be honest about their recommendations on what will work best for your situation, call Linda Mattson and her crew, to see why they will be around for generations to come.

Gas Leak Repair questions, answered by experts

Local codes often mandate specific fittings, permits, and vent considerations for permitted function and safety, which are enforced by professionals.

In North America, pipe measurements are listed as the nominal pipe size (NPS). This measurement refers to the outside diameter. As an example, a 1/2-inch copper pipe has an outside diameter of 5/8 of an inch. If a hardware store lists a pipe as having a 2 NPS, it means that all the pipes with this measurement have a 2 ⅜-inch outside diameter, regardless of wall thickness and inside diameter.

The cost of repairing a gas leak depends on the type of leak, its severity, and how difficult it is for the repair technician to reach it. Some of the most common gas line repair costs, on average, include:

  • Cap a gas line: $75–$150

  • Gas system inspection: $150

  • Pressure test: $75–$500

  • Damaged or corroded pipe: $6–$7 per linear foot

  • Repair gas leak: $120–$5,000

Although a gas company supplies gas to homes, connecting gas appliances, like a dryer, is not their responsibility. The primary role of a gas company is to safely deliver gas to a property and maintain the gas supply lines up to a specific point, typically the gas meter or shut off valve. The task of installation is usually taken on by the homeowner or professional dryer installer. 

In most cases, a gas stove should be installed by a licensed plumber. Connecting gas appliances carries many risks, chief among them a fatal gas leak. If your home is already set up with the proper gas hookups, you may be able to DIY the installation (or save money by hiring a local handyperson or basic appliance installer near you rather than a plumber). If you’re ever in doubt, however, we recommend going with a professional master plumber.

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The Mount Carroll, IL homeowners’ guide to gas leak repairs

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

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