O'Brien Plumbing
Company Overview
O'Brien Plumbing Inc. has been delivering trustworthy and cost-effective plumbing solutions to the mountain region for over two decades. Our extensive experience of over 37 years reflects our dedication to quality, establishing us as the top plumbing service in the region. As a fully insured, locally owned company, we ensure clear pricing and dependable service for every task. We take pride in our work and back all our services with outstanding warranty options and skilled craftsmanship. Understanding that plumbing crises can arise at any hour, we provide a contact for any commercial or residential emergency. Our services at O'Brien Plumbing Inc. encompass: Installation and plumbing services for water heaters, faucets, toilets, and additional fixtures. Cleaning services for sewers and drains, covering main lines, cleanouts, stoppages, floor drains, etc. New construction services for residential, commercial, and renovation projects. Our team of 14 skilled professionals ensures top-notch plumbing services.
Business Services
- Bathtub installation
- Drain repair
- Hot water recirculation pump installation
- Hot water recirculation pump repair
- Hydro-jetting
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Shower installation
- Toilet installation
- Water heater installation
- Water heater repair
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 4:00 PM |
Tue: | 8:00 AM - 4:00 PM |
Wed: | 8:00 AM - 4:00 PM |
Thu: | 8:00 AM - 4:00 PM |
Fri: | 8:00 AM - 4:00 PM |
Sat: | 8:00 AM - 4:00 PM |
Sun: | Closed |
Recommended Customer Reviews

O'Brien Plumbing saved our weekend, and our plumbing!
We had a serious sewer backup occur on Saturday morning in our home at Lake Arrowhead. Called at least 7 different plumbing services leaving messages on their voice mails. Called O'Brien on the recommendation of two different people. Actually talked to a person!! She said the plumber was on a call, but he would head over as soon as he was done. Within 30 minutes Jason arrived. He had located the clean out and was ready to open it up by the time I got downstairs to answer the door.
He snaked out several chunks of tree roots which had blocked our sewer line, solving our immediate problem - a houseful of guests needing to use the facilities. Yay!
Jason was friendly, professional, explained the problem to me, my hard-of-hearing father and everyone else that asked about the problem (we are a nosy bunch!) He was respectful and informational to all of us.
He suggested sending down a camera (later in the week at regular pricing), identifying what might need replacing and recommending a solution to keep the problem from happening in the future. We are setting a follow up appointment.
O'Brien could have charged us an arm and a leg as it was a Saturday and no one else was responding. They did not. It was a reasonable fee and an excellent result.
Thank you Jason and O'Brien Plumbing!!

I have utilized O'Brien Plumbing several times since moving to Crestline from Los Angeles. On each occasion, their representative arrived on time, provided an accurate estimate for the work needed. Their price for the work was reasonable. On every occasion they arrived on time, accomplished the work as promised in a clean, professional manner. I highly recommend this business if you need plumbing services in the Crestline area.

I called O'Brien with an emergency plumbing issue and the woman who answered the phone told me I'd have to wait a week to have someone come out. When I told her it was urgent, and I asked if she could refer me, she treated me like I am an idiot. If O'Brien's plumbers are so booked, maybe they should hire more. Better yet -- replace the person answering the phone. In this small town, companies often make referrals. It's Lake Arrowhead, not Wall Street where businesses feel like they have to eat their competitors for lunch. O'Brien was first recommended to us by neighbors, and over the past ten years we've had good experiences. But today, in an emergency, O'Brien phone receptionist decides she's gonna put me in my place... This is no way to treat a longtime customer. O'Brien's service stinks!

Great service. 6:00am emergency and had to go to work. They came the same day and fixed it. Laura, who works in the office, was very nice and helpful.

Jason is amazing. He's done work for me at my Airbnb rental in Lake Arrowhead. He's prompt, honest, and efficient. Can't go wrong with hiring him to take care of your plumbing needs. Would definitely use him again!

This morning at 5:30 (Sunday) l called O'Brien plumbing when my water heater started leaking like crazy, they came out and temporarily stopped the leaking water heater. I'll be getting a new one installed in the next couple of hours. This is not the first time O'brien plumbers have come to rescue us during the night or on a weekend. Can't beat O'Brien plumbing.

Quoted us 5X another reputable plumber quoted us and for work we did not need. Our experience with O'Brien Plumbing was dishonesty at it's worst. The plumber and his assistant arrived to diagnose the problem. They spent no more than 10 minutes onsite and suggested a fix the was very involved. We did not trust that 10 minutes was sufficient to determine the root cause of our problem and followed up with a different plumber here on the mountain. It turned out, with a little work, that the issue was contained and did not need the multi-thousand-dollar solution quoted by the O'Brien plumbing team. We went with the other plumber and could not be happier.
Be sure to shop around and get multiple quotes. And most importantly, trust your instincts when it comes to someone trying to rip you off.

Last minute call at 9pm at night. They answered the
Phone and sent someone out. He was able to fix the problem and replace the part.. saved the night as we were stressing with running water we couldn't get to stop.. thank you for your help

Not even worth one star..... The receptionist is one of the rudest people I have ever encountered in my life. The estimates are vague and they won't explain exactly what they are charging you for. Please take your business else where!!!!!

A good honest plumber. When I initially called in the evening I was told about the after hours fee and if I wanted to wait I could just do the regular service call charge for next day. Needless to say it wasn't an emergency, so that was great. They showed up bright and early to get our toilet unclogged during regular business hours. They were quick, professional, and prices were very reasonable. Hopefully we don't have to call them back anytime soon, but it's nice to know if we are ever in need we have a great plumbing service in the area.