Tier 1 Leak Detection
Company Overview
Our expertise lies in leak detection that minimizes disruption and repairs that cause minimal disturbance. In addition, we provide emergency leak detection for in-slab and underground main lines. We guarantee to locate your leak or you won’t owe us anything. On Sundays, we offer on-call services.
We are a family-owned company, based in Anaheim, California. We are licensed, bonded, and insured. We cover all of Orange County and its vicinity. We stand by our guarantee: “Find your leak or it’s free.”
Johnny, the founder of Tier 1 Leak Detection, brings over ten years of experience in the leak detection field. Our motto is “Honest. Professional. Reliable.” Johnny gained his expertise working for a previous leak detection firm, where he was acknowledged for his positive demeanor, teamwork, and marketing skills, even earning Employee of the Year. More than just awards, Johnny cherishes the connections he forms with customers. Customers frequently evolve into more than just clients; they become individuals he can assist. He has made a name for himself as a dependable professional in the leak detection industry, seeking to deliver honesty and value as a business owner.
Business Services
- Gas line installation
- Gas line repair
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Sewer installation
- Sewer repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 7:00 PM |
Tue: | 8:00 AM - 7:00 PM |
Wed: | 8:00 AM - 7:00 PM |
Thu: | 8:00 AM - 7:00 PM |
Fri: | 8:00 AM - 7:00 PM |
Sat: | 8:00 AM - 7:00 PM |
Sun: | Closed |
Recommended Customer Reviews

Johnny was flat out amazing. Exactly what the other reviews said. He's honest and watches out for his customers. Off the bat he said based on the age of my house and the problem I described he said the best option would be a repipe which isn't a service that he offered. That right there told me he was about integrity. In the end I had him do the leak detection and he found it, he even was able to buy me sometime by isolating the line. This guy is super knowledgeable and so willing to help. He's so good I wanted to give him more than he charged because I was so impressed.
The best way I can describe Tier 1 Leak Detection is like when you find a good car mechanic that knows his stuff and doesn't to try to blow smoke and sell you on a bunch of extra stuff. If you see your water meter running late at night when no fixture is going or if you hear activity in the pipes, and you are afraid it's a slab or pinhole leak definitely do yourself a favor and see if Johnny can take a look and help.

I highly recommend Tier 1 Leak Detection / Johnny Fong. Our local water company recommended that I call a leak expert since our water bill was slowly climbing over time. I found Tier 1 on Yelp, and gave Johnny a call. Without a doubt, Johnny is the most professional, caring, and knowledgeable service provider I have met. He took the time to help me understand the potential areas of concern, and he provided great advice regarding potential solutions to address the problem. Thankfully, we didn't have a significant leak, but if we did, Tier 1 would be the company I would call. If you are in the market for an excellent leak detection company, don't hesitate to call Johnny. He is an amazingly talented and caring individual.

Johnny is the best I've used his company a couple times and he has both times exceeded my expectations. He does amazing work. Thanks so much Johnny

The best leak detection, plumbing service. Great customer service, great quality work, punctual, polite, caring. He is amazing in finding solutions for a slab leak. Hands down, the best plumbing service I have used in 42 years.
Thank you Johnny.
Dan.

Amazing company! Johnny is so helpful, knowledge and honest. He did everything he said he would do and stayed within the time frame he projected. I highly recommend!!

I highly recommend this company, we had an sudden leak in our home and several plumbers who came out only could guess where it could from. I called Several Leak Detection Companies and I am so thankful Tier 1 came out. The owner Johnny and his team came out to detect a leak that was leaking from the floorboards of our kitchen with his gear. Took the time to explain and was very professional. They found the slab leak was able to cap the leak so that we could submit to our insurance company. We have use of water and bathroom until repairs can be made.
Thank you so much Johnny and Troy!!!

Had a slab leak and Johnny and Troy came to my house to verify. Extremely professional, wearing a mask and booties. They took their time and checked EVERYPLACE to ensure that we only had one leak. Gave me the various options to fix the leak and what would be the best for our situation. Told me that I could call them and they would answer any questions or come back to the house to discuss it at no extra cost. Highly recommend them if you have any water related issues.

I highly recommend Tier 1 Leak Detection.
Punctual
Super clean work from start to finish
Affordable/Fair price
Above all else, John is a really nice honest guy. After identifying the source of the leak, he wasn't 100% comfortable with the particular brthat needed repair and referred me to a plumber who took care of it.
I hope I never get another leak somewhere else but will call Tier 1 for sure if it happens.
Thanks John for your honesty and integrity.
So it's been more than a year since Jon helped us with a leak and we had another leak in a different area so we knew immediately who to call. I was not at all surprised that Jon remembered exactly who I am and told me he would come out immediately to help. We're so grateful to Jon and the amazing job he did. Super fast and clean!!! Thank you Jon .

Beyond impressed. Woke up and noticed an active leak from the ceiling in the garage and called my home warranty company. The first company they assigned couldn't come out for over 4 days! Water was dripping from the ceiling. Within hours, I was connected with Jonathan from Tier 1 and from the first conversation he was beyond professional, kind, and easy to work with. They came out, identified the leak quickly, took care to covering everything in the garage as they did their work, and got it fixed. All in a day! They were a pleasure to work with!

Super helpful. Very knowledgeable and skill in what he does. Will call him again if we ever had another issue.
Honest, ethical.