Reviews of local pros in O'Fallon, Illinois

Josh from Action Mechanical Services came out to our residence on January 09, 2026 to fix a couple faucets for us. Josh was prompt, courteous, and very professional. We have been monitoring the work for a few days and everything seems to be working fine; no leaks or new issues. Great job!

We had a great experience with Action Mechanical Services. Nick came out to check our water heater and was extremely knowledgeable and professional. He took the time to explain everything clearly and made us feel confident about the condition of our system. We were very pleased with the service and would definitely recommend them!

They good for the price

Great service and very helpful

Great bunch of well knowable guys

I was driving down highway 50 and a plumber's supply company truck ran a red light and almost caused an accident. If that's how they drive then I will never let them in my house to fix anything.

Piece of my faucet broke, and no home improvement store carried the part. Showed it to them, and they had it sent to their store from stl within 12 hours.

Very accomdating and helpful in item I was searching for despite not really being open for business. I needed to see a shower unit and they are only open for curbside service. The nice Rep still helped me and I greatly appreciated it.

Vince is amazing! Grateful for his knowledge and amazing customer service.

I walked in today and was not greeted. Two people were standing at the counter and finally I spoke and he looked briefly and said they didn’t have the piece I needed. I guess he would know but I really didn’t feel any effort at all on his part. He almost seemed like he didn’t even want to assist me. I won’t be back!

I went in today to ask about purchasing a couple shower handles. The associate was rude. He asked me what the manufacturer was. I told him i did not know and I think I need universal shower handles. He said they had nothing like that available for me. I can't believe Lowes and Home Depot have a better selection and service than a company that specializes in Plumbing. If that employee worked for me he would be fired instantly for treating a customer that way. I wont refer anyone to this location ever.

Jason is an amazing employee. I had several issues with many trips to the store and phone calls (he even used his personal iPhone to FaceTime me to see the problems that I had). He spent much time with me to ensure that I had the correct parts and giving valuable advise. Thanks so much.

I got a flat tire today & pulled into their parking lot. I went inside, there were 6 male employees & I asked for help putting my spare tire on & one of them replied, “is anyone a mechanic? “, and then proceeded to tell me to call someone else for help. As a nurse, I just can’t imagine not helping someone. I wanted to write this review, not as a customer, but as a reference to the character of the people working here if one day y need customer service, I’d imagine they would have zero motivation to help you.

Was very professional and found the service to be exceptional

Paul is professional, knowledgeable and friendly. He repaired a hot mess a previous 'handyman' made. Changed a leaking main shut off valve, installed new water lines and re-installed a water heater that was arcing (due to a bad install). He works all hours, super early and late night, to get the job done! He'll be our go plumber in STL and IL.

I’ve been living 3 years in this house and have never seen the bathroom faucet work as it does now! Mr. Goodman did an excellent job; fast, clever and tidy. Preferred Plumbing is now my go to option for plumbing projects.

Willie, Preston & Parker are truly outstanding representatives of Preferred Plumbing. They we are kind, courteous and respectful of our home. Willie gave me all the details that I needed for my estimate and made sure that I had a complete understanding of everything.

Preston and Parker, did a great job on the installation of our hot water tanks. And explained the proper settings. I will highly recommend prefer plumbing.

Thanks K&S

Parker did an amazing job helping us with our plumbing issues i.e. shower and bathtub leaks. He was very knowledgeable and efficient. By far the best plumbing experience we have had in 15 years

Parker showed up as promised. He diagnosed the problem, explained to us our options, and completed the work. He was professional, courteous, and timely in getting the job done. I would recommend Preferred Plumbing - Kevin, Parker, Preston and team to anyone who has a plumbing issue. We have always been highly satisfied with their service.

Wonderful business. Friendly, courteous, and competent. Always quick to respond been using them for over 3 years

Preferred Plumbing always provides prompt service and great customer service. Prices are in line with the market and never try to upsell. They’ve been servicing my back-flow preventer for the past 5+ years and I will continue to go to them in the future