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Melex Detection Service Truck


Professional water leak detection can save time and money by quickly identifying the source of a leak and providing expert water-saving solutions for fast repairs. Our advanced, non-invasive equipment prevents damage to your property. With over 30 years of experience, Melex Owner, Sean, offers valuable advice on next steps in unfortunate scenarios like underground leaks or breaks.

a water line undergournd that has a leak


From the Port of Moses Lake to the Kootenai County Water District we have helped identify major problems quickly and save money with days or weeks of guess work.  We use the newest technology to assess & locate all water distribution systems. We are also available for emergency or after hours main line issues to lower costs and damages.  The longer a leak goes undetected, the more costly damages accrue for your property.  If you suspect you have a leak don't delay, call us for fast, friendly service.

Underground water main with a leak


Although utility companies offer to locate their power or water lines up to your property line, anything beyond that is your responsibility. That's where Melex Detection comes in with state-of-the-art equipment to locate your underground power, sewer, or water lines quickly and affordably. Before starting your next project, give us a call to ensure peace of mind and avoid any risks associated with digging without proper knowledge of underground lines. Remember to "call before you dig" and let us help you.  We are your private utility locater.

Sean finding an underground water leak

Received a high water bill?

Find your underground power.

Need to locate a sewer line?

Pool losing water?

Well pressure tank issues?

Well pump running too much?

Mysterious sound?

Suspect you have a leak?

Wet spot in lawn or near foundation?

Jeff Sheets, AFO

Silverwood Theme Park & Boulder Beach Water Park

We have used Melex Detection in the past and have had great results. The determination and work ethic are very refreshing.

We called a couple of other services before we found Melex. They did not find our leak and basically gave up after a few hours of searching.

Sean stayed on the problem and even brought in some extra equipment to help with the search. We located our leak, and are very grateful that Melex detection was there. Prices are very reasonable, and the equipment is state of the art.

You will be my first call next time!

Mike Waterhouse, Mgr

Kootenai  Water District #1

I want to thank Sean Moore for his quick response in locating a leak in our water system affecting about 20 patrons. We were leaking about 50k gallons per day. The water did not surface at all. Within 2 hours, Sean pinpointed the leak, and we had it repaired the same afternoon. I highly recommend Melex Detection.

Thank you Sean.

Patty S


You are my proof that there are angels among us. Thank you Melex Detection for your kindness. You will always be remembered in our family.

Carol Gibson

Director of Real Estate

Sean, thank you very much for the great service you provided to the Port of Moses Lake. I appreciate you accommodating the schedules of our tenants and giving up your “off” time to do so, not to mention the inclement weather! I’m happy to recommend your services and should we need leak detection in the future, we will not hesitate to contact you.

Central Washington:  Okanogan, Wenatchee, Ellensburg, Yakima, Republic, Grand Coulee, Moses Lake


Eastern Washington:  Ritzville, Pullman, Airway Heights, Spokane, Medical Lake, Cheney, Chewelah, Colfax, Colville

  Northern Idaho: Lewiston, Moscow, Kellogg, Coeur d Alene, Post Falls, Hayden, Worley, Plummer, St. Maries, Sandpoint, Bonners Ferry

Western Montana:  Libby, Kalispell, Missoula, Superior, Noxon, Thompson Falls

And every place in between.

Discover insights from a satisfied customer who graciously shares valuable tips on preparing for our on-site work. If you have any inquiries about getting ready for MELEX's arrival, feel free to reach out. We're committed to a swift and efficient on-site locate to help you save both time and money. Remember, we specialize in private utility and underground leak locating across Eastern Washington, North Idaho, and Western Montana.


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