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Verified Reviews for Water Heater Service pros in Dahlgren, IL

*The Angi rating for Water Heater Service companies in Dahlgren, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

*The HomeAdvisor rating for Water Heater Service companies in Dahlgren, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.

Last update on October 27, 2025

Find Water heater pros in Dahlgren

Avatar for J & E Heating and Cooling, LLC

J & E Heating and Cooling, LLC

1004 Metropolis Street
5.00(
2
)
•Approved Pro

J & E Heating and Cooling, LLC

1004 Metropolis Street
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Welcome to J&E Heating & Cooling, proudly servicing Metropolis, Illinois and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. Call us today! You will not be disappointed!

"Very professional and competent service at a very reasonable price. I will certainly use them for any HVAV work needed."

Tim B on November 2021

Welcome to J&E Heating & Cooling, proudly servicing Metropolis, Illinois and the surrounding areas. Our goal is to complete your project to perfection. We look forward to building long lasting relationships with the customers that we serve. Call us today! You will not be disappointed!

"Very professional and competent service at a very reasonable price. I will certainly use them for any HVAV work needed."

Tim B on November 2021

Ron's Plumbing

407 East Mulberry Street
3.50(
2
)
•Approved Pro

Ron's Plumbing

407 East Mulberry Street
3.50(
2
)
•Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

Welcome to Ron's Plumbing! We always provide high quality work, that produces an exceptional product. We pride ourselves on the relationships we build with all of our clients, and we cannot wait to hear from you. Call today!

"null"

Deedee S on June 2020

Welcome to Ron's Plumbing! We always provide high quality work, that produces an exceptional product. We pride ourselves on the relationships we build with all of our clients, and we cannot wait to hear from you. Call today!

"null"

Deedee S on June 2020

Solar Wolf Energy

2.00(
2
)

Solar Wolf Energy

2.00(
2
)
10 years of experience

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Solar Wolf is a full service solar company with a great reputation and an old world belief to our customers. To under-promise and over-deliver, period. We have 18 years experience in construction, remodeling, roofing, solar water heaters, solar pv systems, battery back-up systems and much more. See what Solar Wolf Energy can do for you!

Avatar for Eclipse Heating & Air, Inc.

Eclipse Heating & Air, Inc.

Serving
No reviews yet

Eclipse Heating & Air, Inc.

Serving
No reviews yet
21 years of experience

Eclipse Heating & Air, Inc. has been a trusted provider of professional HVAC services in Plainfield, IL, since 2004. Locally owned and operated, we specialize in residential and light commercial heating and cooling solutions, including HVAC installation, furnace replacement, air conditioning repair, and ongoing HVAC maintenance. Our team of certified technicians is dedicated to delivering energy-efficient, cost-effective solutions tailored to your specific needs. We offer 24/7 emergency HVAC services to ensure your home or business stays comfortable, no matter the season. If you’re looking for reliable and affordable HVAC services in Plainfield, Naperville, Bolingbrook, Oswego, or the surrounding Chicagoland area, Eclipse Heating & Air, Inc. is here to help. From furnace upgrades to air conditioning installations and everything in between, we are committed to your year-round comfort. Eclipse Heating & Air, Inc. – Your Comfort. Our Priority. l

Eclipse Heating & Air, Inc. has been a trusted provider of professional HVAC services in Plainfield, IL, since 2004. Locally owned and operated, we specialize in residential and light commercial heating and cooling solutions, including HVAC installation, furnace replacement, air conditioning repair, and ongoing HVAC maintenance. Our team of certified technicians is dedicated to delivering energy-efficient, cost-effective solutions tailored to your specific needs. We offer 24/7 emergency HVAC services to ensure your home or business stays comfortable, no matter the season. If you’re looking for reliable and affordable HVAC services in Plainfield, Naperville, Bolingbrook, Oswego, or the surrounding Chicagoland area, Eclipse Heating & Air, Inc. is here to help. From furnace upgrades to air conditioning installations and everything in between, we are committed to your year-round comfort. Eclipse Heating & Air, Inc. – Your Comfort. Our Priority. l

Mike Essex Contracting

403 S Rains St.
No reviews yet

Mike Essex Contracting

403 S Rains St.
No reviews yet
18 years of experience

Mike Essex Contracting offers competitive pricing and bids. We also offer a limited warranty and guarantee on all work of product completed by Mike Essex Contracting. No job is ever to small nor to big and completed in a timely manner.

Mike Essex Contracting offers competitive pricing and bids. We also offer a limited warranty and guarantee on all work of product completed by Mike Essex Contracting. No job is ever to small nor to big and completed in a timely manner.

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

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Water Heaters questions, answered by experts

A thermocouple is a pretty simple device. It simply tells the control valve if heat is present. Most water heaters can use a universal thermocouple, provided it's the correct length. Getting one that's long enough for your appliance is crucial for success. However, some water heater models require model-specific thermocouples, which is why it's essential to take your existing one to the store to find the right match.

You can use multiple tankless water heaters, but that doesn’t mean you should. Adding multiple tankless heaters adds considerable cost to your home in both parts and installation costs. Also, you’re adding many more points of failure in the system, making plumbing issues harder to diagnose. More heaters mean more maintenance, and insurers may want a word regarding the increased risk of water damage. A single, larger unit makes more sense in most situations.

A leaking water heater could potentially last for a few weeks or months before you need to repair it. However, it's not advisable to wait too long. Once your water heater starts leaking, it's likely that the underlying cause of the leak is getting worse as time goes on. Without immediate repair, your water heater could fail. Instead of using a leaky water heater, you should turn it off and call a pro to fix it.

Unless they are connected to the same system, boilers and water heaters will both need their own expansion tanks. The only case they wouldn’t have separate expansion tanks is if the boiler is pulling double duty and managing a heating system while also supplying hot water for a home. In which case, you may not need a hot water heater.

Unusual noises, lack of hot water supply, efficiency loss, and visible leaks are signs of necessary replacement beyond mere repair.

The Dahlgren, IL homeowners’ guide to water heater services

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

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