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We provide quality HVAC-R, plumbing, and mechanical services to the municipal, industrial, commercial, and residential markets of Chicagoland and surrounding areas. Our can-do attitude, long history of service, and proven process for customer satisfaction builds lasting relationships with our clients making R.J. O’Neil an unparalleled choice for all of your mechanical service needs.
1125 S Lake St, Montgomery, IL, 60538, United States
Get directionsAs a small business owner, I strongly caution others against using this HVAC/R company. In my 10+ years of small business ownership, they are by far the least trustworthy and poorest performing contractor I have ever used. Our experience with them was nothing short of a disaster. We trusted them with all our HVAC and refrigeration needs and were met with poor service, a defensive attitude, and zero accountability. When problems arose (and there were many), they were quick to argue and slow to act. They raised our service rat... read more
I’ve been using this company for over 11 years, and they continue to exceed my expectations every single time! Recently, our AC stopped working, and they sent a technician out right away. He was incredibly knowledgeable—after I explained the issue, he immediately diagnosed the problem and even made an extra trip to pick up the replacement part to get us up and running the same day. This is a woman-owned business run by hardworking people who truly treat their customers and employees like family. Their service is always super... read more
I reached out to R.J. O’Neil after a local company I had used numerous times over the last decade failed to provide me a quote for a furnace and air conditioner replacement (they advised they would once I had all other quotes). I received several quotes from other companies but couldn’t help but feel I was buying a used car from a shady dealership. I contacted R.J. O’Neil and spoke to Jessica who immediately made me feel comfortable. To my relief, Guy from R. J. O’Neil arrived, and was very down to earth. He communicated hon... read more
Jesssica and the team at R.J O'neil are always on point. They service and maintain a hand full of facilities for our company. Also on schedule, friendly and professional.
R.J. O'Neil Inc. has a 4.7 star rating with 43 reviews.
R.J. O'Neil Inc. is open now. It is open 24/7.
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