O'Neill Plumbing Services L.L.C.

I called O’Neill freaking out about a leak in my house and I couldn’t find the shut off valve. While I didn’t need his services at our home, because we found the valve he was so calm and helped me over the phone! He was so kind and reassuring and if I ever need help I will certainly give them a call. Highly recommend.

O'Neill is the only plumber I use, and I recommend Shannon to everyone that asks. He's done all my work since moving to Northern Virginia and it's always been spot on. He's willing to explain what he is doing, why, AND, teach you how to work, adjust, or prevent future issues. Work is always careful, spot on. He's fixed leaks in our plumbing, installed toilets, and most recently put in an upgraded our hot water heater. Always know when I get work done with Shannon that it'll be right and it'll last.

I called Mr. O'Neil this morning Dec 28th with a request for a fix on leaking toilet. He was ABSOLUTELY THE BEST CALL I've made this year! Not only did he help guide me in the right direction to fix the problem....he was gracious and thoughtful enough to take call after call walking me thru every step of the way. Wow...just WOW!!!! The luckiest Ive ever made was to the this plumbing service...when others would have charged me an arm and a leg for a dignosis...Mr. O'Neil didn't....for that he will have my business from now on!!! Many many thanks!!! Can't gush enough!!!

Extremely impressed by Shannon at O'Neil Plumbing. We were in the middle of a kitchen renovation when we realized one evening we didn't have hot water. We called and Shannon walked us through finding the hot water shut off valve we didn't even know existed and turning it back on. We then noticed our current water heater was leaking internally and immediately Shannon loaded up his truck with a new one and was at our home within an hour. He worked with our home warranty company and was very knowledgeable and professional. The whole team from the call, scheduling, and installation was amazing. Would recommend his services.

Shannon has been my plumber for ages now. First time I needed a plumber, I was worried about a leak based on my water bill. He poked around, showed me what to look for, then didn’t charge me anything. Ever since then, he has been my guy. Replaced all my toilets, sinks, new hot water heater. Had a failed element in the middle of snowmagedon, he walked me through the process of how I could isolate it and keep water flowing over the phone until he could visit the next day. He will always be my plumber, and I would recommend him to everyone.