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R.J. O’Neil, Inc. is a Mechanical Contractor servicing the Greater Chicagoland Area. Est. in 1926, we have decades of experience in HVAC-R, …
Services offered
Duct Cleaning
Fire Sprinkler Systems
Plumbing
Septic Tanks and Systems
Reviews
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5.0/5 · 12 reviews
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Aug 18, 2022
We had a plumbing issue and we called R.J O'Neil. They responded quickly and came to take care of the problem. Highly recommended!! Full review by Norma Montanez
Aug 3, 2022
What a lifesaver!! I called R.J. O'Neil told them about my a/c acting up and within 30 minutes I got a call from Levi saying he will be there in 15 minutes. Levi was super nice and courteous and got … Full review by Eric Schmidt