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Verified Reviews for Gas Leak Repair pros in LaSalle, IL

*The Angi rating for Gas Leak Repair companies in LaSalle, 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 LaSalle, 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 November 14, 2025

Find Gas leak repair technicians in LaSalle

Service First Mechanical Inc.

No reviews yet

Service First Mechanical Inc.

No reviews yet
17 years of experience

Service First Mechanical values its customers and workers. Having been in the plumbing industry for 30+ years Service First Mechanical has exceptional reputation to uphold. Managed by a reliable group of 20+ licensed plumbers that are on call 24 hours a day. No job is too big or too small.

Service First Mechanical values its customers and workers. Having been in the plumbing industry for 30+ years Service First Mechanical has exceptional reputation to uphold. Managed by a reliable group of 20+ licensed plumbers that are on call 24 hours a day. No job is too big or too small.

R.J. O'Neil, Inc.

1.00(
1
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R.J. O'Neil, Inc.

1.00(
1
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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

A & J Complete Service Corporation

5.00(
2
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A & J Complete Service Corporation

5.00(
2
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in repairs on heating & air conditioning systems , ducting , residential & commercial appliance repair ,refrigeration , & commercial restaurant equipment..

We specialize in repairs on heating & air conditioning systems , ducting , residential & commercial appliance repair ,refrigeration , & commercial restaurant equipment..

Custom Construction & Remodeling

1.00(
2
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Custom Construction & Remodeling

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

Avatar for Priority Systems Mechanical Services

Priority Systems Mechanical Services

No reviews yet

Priority Systems Mechanical Services

No reviews yet
18 years of experience

We use no subcontractors, $50.00 trip charge, $75.00 diagnostic fee, (may be waived based on required work performed). Credit Cards accepted, a 3% processing fee may be added to invoice total.

We use no subcontractors, $50.00 trip charge, $75.00 diagnostic fee, (may be waived based on required work performed). Credit Cards accepted, a 3% processing fee may be added to invoice total.

Avatar for McDonagh & Sons Plumbing & Sewer Inc

McDonagh & Sons Plumbing & Sewer Inc

4.86(
51
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McDonagh & Sons Plumbing & Sewer Inc

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.

Avatar for Popejoy Plumbing, Heating, and Electric Inc.

Popejoy Plumbing, Heating, and Electric Inc.

3.67(
3
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Popejoy Plumbing, Heating, and Electric Inc.

3.67(
3
)
Customers say: Quick response
42 years of experience

Our mission is to combine high quality products with professional reliable service and build trusting lifelong relationships with our clientele, so that all of us within the company can experience the pride and satisfaction of being an integral part of a job well done.

Our mission is to combine high quality products with professional reliable service and build trusting lifelong relationships with our clientele, so that all of us within the company can experience the pride and satisfaction of being an integral part of a job well done.

Mississippi Valley Construction

5.00(
5
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Mississippi Valley Construction

5.00(
5
)
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.

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Gas Leak Repair questions, answered by experts

Propane tanks are professionally installed by assessing the site for safety, placing it correctly, connecting it securely, and ensuring compliance with safety regulations.

The cost to repair a gas leak is $120 to $250 on average, but it could be as costly as $5,000, depending on the leak location and severity. 

For example, if you have drywall covering the source of the leak, you'll need to hire a contractor to replace the removed drywall. In addition, if the leak is underground, you'll need a contractor to excavate the ground to reach the gas line. 

While some building codes allow galvanized pipe for natural gas, it shouldn’t be used for propane. Propane can cause the pipe to wear down, leading to dangerous leaks. Instead of galvanized piping for propane, you should consider coated copper, black iron, or corrugated stainless steel tubing (CSST). For underground propane line installation, you can use polyethylene (PE).

No, homeowners should never attempt to fix a gas leak themselves. Gas leaks pose serious health and fire hazards. Exposure to leaking gas can make you sick, and accumulated gas can ignite and explode. So always take leaks seriously and seek the help of a pro right away. While you may be able to detect a gas leak, always call a licensed professional to handle repairs and replacements.

The best way to reset this valve is to contact your utility provider to do so safely. If the pipes are damaged and you reset the valve anyway, it could lead to a gas leak. It’s important to call in a pro as soon as you can to reconnect your gas supply after an earthquake and ensure the device will work again the next time there’s a quake.

The LaSalle, IL homeowners’ guide to gas leak repairs

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

See all articles