Water Heaters
New hot water tanks and tankless units installed, old units hauled away, and venting rebuilt when it needs it so the job is done safely.
Fully licensed & insured
Water heaters, sinks, faucets, filters and bathroom plumbing for Billings, MT and the surrounding areas. Ken returns your call and gets you on the schedule at the first available slot.
5.0★
Google rating
72
Google reviews
100%
Recommend on Facebook
Licensed
and fully insured
What we do
From a new kitchen sink during a renovation to a full hot water heater swap, O'Neil Plumbing shows up on time, respects your house, explains the work in plain language and leaves the place spotless.
New hot water tanks and tankless units installed, old units hauled away, and venting rebuilt when it needs it so the job is done safely.
Kitchen sink hookups during a renovation, new faucets, vanities and console sinks, set level and sealed right.
Filter installs so the water coming out of your tap is the water you want in your glass.
Tubs, walk-in tubs, freestanding fillers, showers and double vanities plumbed in for bathroom remodels.
New supply and drain lines run while the walls are open, so everything behind the finish is solid.
One customer called unexpectedly and had a plumber at the house within 30 minutes.

Water heaters
When a hot water heater goes in, the old unit gets hauled away and the venting gets checked. If it needs rebuilding, it gets rebuilt, because carbon monoxide is not something to leave to chance.
“They took the extra time to make sure we were fully protected from carbon monoxide and that the installation met the highest standards.”
Our work
Real jobs, photographed by the crew. Tubs, fillers, vanities and the pipework behind the walls.

Remodel plumbing, start to finish.
Rough-in while the walls are open, then tubs, showers and vanities set once the tile is done.








The crew
O'Neil Plumbing is a local Billings outfit. When you call, you talk to the people who do the work, and customers keep calling back for the same faces.
Call Ken at (406) 671-2537Returns your call promptly and gets you on the schedule at the first available time slot.
From BN, Google review
Incredibly friendly and knowledgeable, and stayed late to get a new kitchen sink running before he left.
From Christtina Daugherty, Google review
Out to the house to fix plumbing issues and install sinks, faucets, a hot water tank and filters.
From BN, Google review
Reviews
72 Google reviews
“I can't say enough good things about O'Neil Plumbing! They originally came out to hook up our new sink as part of our kitchen renovation. Reno was incredibly friendly and knowledgeable, and he even stayed late to make sure we had our sink back up and running before he left. That kind of customer service really stood out to me. Fast forward to yesterday when I unexpectedly needed a plumber again. I called O'Neil Plumbing, and they were at my house within 30 minutes! Once again, the service was fast, friendly, and professional.”
“Nothing but 5 stars all around for O'Neil Plumbing. I have had Ken or Pat out to the house numerous times to fix plumbing issues and install sinks, faucets, a hot water tank, filters… you name it. First of all Ken will return your call promptly. He gets you on the schedule at the first available time slot. They are on time, courteous, respectful of your house, personable, and knowledgeable. Basically, in one word, professional.”
“Ken and Reno did an outstanding job installing our new hot water heater. From start to finish, their professionalism and attention to detail were evident. They not only replaced the old unit and hauled it away, but they also rebuilt the venting system to ensure everything was done safely and correctly.”

“The work was done perfectly and way faster than I expected. You can tell they take pride in what they do. They explained everything in a way that actually made sense, didn't try to upsell me on anything unnecessary, and left the place spotless when they were done.”
“I have used O'Neil plumbing twice. They are very responsive, thorough and great communication. Reno did a great job and i would use O'Neil plumbing again.”
Call during business hours and Ken will get you on the schedule.
Contact
Serving Billings, MT and the surrounding areas. Call for the quickest answer, or send a message and we'll get back to you.