National Leak Specialists

★★★★★ 4.9 / 5 (20)
: 15835 Monte St Unit 104, Sylmar, CA 91342
: (833) 562-8669
: http://www.nationalleak.com

Company Overview

Look no further than National Leak Specialists for detection of water leaks, identifying plastic water lines, and leak correlation for both sleeved and non-metallic piping. We provide solutions for both residential and commercial properties as well as property management companies with pipe locating needs. Having served for more than 48 years, we have trained and provided leak and locating equipment to local and national plumbers through our parent company GOLDAK INC. “Why call the student when you can call the teacher!”

Business Services

  • Plumbing inspection

Business Location & Hours



Mon:7:00 AM - 12:00 AM (Next day)
Tue:7:00 AM - 12:00 AM (Next day)
Wed:7:00 AM - 12:00 AM (Next day)
Thu:7:00 AM - 12:00 AM (Next day)
Fri:7:00 AM - 12:00 AM (Next day)
Sat:7:00 AM - 12:00 AM (Next day)
Sun:7:00 AM - 12:00 AM (Next day)

Recommended Customer Reviews

Joe E.
★★★★★

Bob truly was an angel when we needed one. He was very kind, helpful and honest. And he was in a fantastic mood even though he had every reason not to be that day. Michelle was also always kind and caring on the phone. These two made a very stressful situation much more enjoyable. Thank you!!!

Rose R.
★★★★★

The best in the business will recommend them to my family and friends I called a day before we set up a time for the following day Bob showed up and was honest with the pricing and he even communicated throughout the whole process Very excellent service and very professional. Thank you all

Frank C.
★★★★★

Had a natural gas leak at my business. Called national leak and they gave me a fair price. Came with expensive tools and checked everywhere and found 2 leaks. Only thing better would be if they fix the leak, but i was able to find a plumber to fix. Would definitely use again, but I'm hoping I won't have to.

Moso S.
★★★★★

Honest and reliable company to say the least! The gas company had shut off our gas due to a gas leak. After going through 2 separate companies which failed to detect where the leak was, we were able to find National Leak. They were completely booked for a few days, but promised to get back if they had an opening sooner. As promised, Bob called back that same evening and scheduled to come out the next day. He showed up with all the right equipment and was able to locate not 1, but 2 gas leaks!!!! Thank you Bob!

Tony A.
★★★★★

I am a property manager and had a gas leak that caused the gas company to shut off the gas to one apartment; my plumber could not find the source. I called one company and they would not even come out. I spoke with Bob and he was able to get there the next day. He did a lot of testing and did not think there was a leak. Plumber still could not find it. Bob came back out a 2nd time with 2 other people; after thorough testing he still thought no leak and I should contact the gas company. Sure enough the gas company turned the gas back on; seems they made an error when they shut it off the first time. I would highly recommend Bob & National Leak Specialists!

Phil H.
★★★☆☆

Recently was referred by Kirk The Plumber for a leak assessment. I just recommend requesting a quote from them before initiating the evaluation. Seemed expensive.

Shannon A.
★★★★★

I absolutely recommend Tim & Bob! They were referred to me by a plumbing company that I called that I found online after another company quoted me $5100 for a whole new line (he didn't even do anything, just came out). We had a gas leak and the Gas Co had to shut off our gas. We were without hot water and stove for 6 days. We had one incompetent plumber come out that said he was going to compress the line to find the leak, but didn't. I called another who wanted to charge us $5100 to redo everything!
Tim & Bob got our gas back on and referred us to an honest plumber who is going to repair the rest of our issue.
Highly recommend these guys!

Jill K.
★★★★★

Efficient. Kept me posted and in the loop of an eta. worked diligently to find out the specific problem

Robert P.
★★★★★

I highly recommend Bob Mulcahey and his team at National Leak Specialists.
Turns out I had a leak from a PVC pipe under the cement on my back patio. I spoke to a few other companies that didn't want to take the time to explain various detection methods which frustrated me.
Bob was prompt to return my call and spent the time to explain a few of the various tools he uses to find different types of leaks in different situation such a water inside, water outside, gas, breaks in electrical lines, etc.
This time made me feel comfortable that he was the right guy and they provide emergency service and was over first thing the next morning. I'm impressed with all the equipment he has and used and within sort time he was able to pinpoint my leak to within a few inches.
I had plumbers out the next day to rip out the concrete and repair the leak. Once they got to the pipe, the leak was not obvious as it was from a joint that was never glued in the first place.
Bob was back at my house withing 30 minutes to help the plumbers pinpoint the leak.
All fixed and I couldn't be happier with their service. Their pricing is also similar to the other quotes I received. A big difference is their personal relationship with Goldak, a manufacturer and expert in the detection tools used.
Good luck.

Thomas A.
★★★★★

These guys are best service company I've ever hired, they knew exactly what had to be done, they were on time and fixed our problem without any issues. Real pro's... would highly recommend!

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