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Affordable Utility Locating Services in Southwest Washington

  • twincitylocating
  • Sep 18, 2025
  • 3 min read

Updated: Oct 22, 2025

Understanding the costs associated with utility locating services is crucial for homeowners and contractors alike. At Twin City Locating, we strive to provide transparent pricing with no hidden fees. Our pricing structure is based on the distance from Centralia City Hall. If you provide us with your address, we can give you an exact quote. NO SURPRISE ADDED COSTS (ALL TAXES INCLUDED IN PRICE)


Pricing for EM Locating Services


You can easily determine your cost based on your distance from Centralia City Hall:


  • Within 15 minutes: $160

  • Within 30 minutes: $200

  • Within 45 minutes: $240

  • Within 60 minutes: $280

  • Within 75 minutes: $320

  • ($40 for every additional 15 minutes further)


The first hour of locating on-site is included in the price, with a rate of $90 per hour thereafter. In fact, 90% of homeowners require less than one hour for locating services.


Cost Breakdown for EM Locating by County


Lewis County

  • Within Centralia city limits: $120

  • Chehalis: $160

  • Napavine: $200

  • Winlock: $200

  • Onalaska: $200

  • Ethel: $200

  • Toledo: $200

  • Vader: $200

  • Silver Creek: $240

  • Pe Ell: $200

  • Mossyrock: $240

  • Morton: $240


Thurston County

  • Grand Mound: $160

  • Rochester: $200

  • Bucoda: $160

  • Tenino: $200

  • Yelm: $240

  • Rainier: $200

  • Tumwater: $200

  • Olympia: $200

  • Lacey: $200


Grays Harbor County

  • Oakville: $200

  • Elma: $240

  • McCleary: $240

  • Montesano: $240

  • Aberdeen: $280

  • Westport: $320

  • Ocean Shores: $360


Cowlitz County

  • Castle Rock: $200

  • Kelso: $240

  • Longview: $240

  • Kalama: $240


Pricing for GPR (Including EM) Locating Services


For GPR services, the pricing is also based on the distance from Centralia City Hall:


  • Within Centralia city limits: $250

  • Within 15 minutes: $290

  • Within 30 minutes: $330

  • Within 45 minutes: $370

  • Within 60 minutes: $410

  • Within 75 minutes: $450

  • ($40 for every additional 15 minutes further)


The first two hours of locating on-site are included in the price, with a rate of $125 per hour thereafter. GPR locating involves multiple runs to eliminate false positives and verify routes based on the interpreted data from the GPR machine. Many homeowners find that they utilize the full two hours of service.


Cost Breakdown for GPR Locating by County


Lewis County

  • Within Centralia city limits: $250

  • Chehalis: $290

  • Napavine: $290

  • Winlock: $290

  • Onalaska: $290

  • Ethel: $290

  • Toledo: $290

  • Vader: $290

  • Silver Creek: $330

  • Pe Ell: $290

  • Mossyrock: $330

  • Morton: $330


Thurston County

  • Grand Mound: $290

  • Rochester: $330

  • Bucoda: $290

  • Tenino: $330

  • Yelm: $370

  • Rainier: $330

  • Tumwater: $330

  • Olympia: $330

  • Lacey: $330


Grays Harbor County

  • Oakville: $330

  • Elma: $370

  • McCleary: $370

  • Montesano: $370

  • Aberdeen: $410

  • Westport: $450

  • Ocean Shores: $490


Cowlitz County

  • Castle Rock: $330

  • Kelso: $370

  • Longview: $370

  • Kalama: $370


Why Choose Twin City Locating?


Choosing the right utility locating service is essential for safe digging. At Twin City Locating, we prioritize your safety and peace of mind. Our expert team is dedicated to making utility locating accessible and affordable. We ensure that you know what lies beneath the surface, preventing potential damage to hidden lines.


When you contact us, you can expect clear upfront pricing. We believe in transparency and want you to feel confident in your decision. Our goal is to be your go-to local expert for private utility locating in Southwest Washington.


In conclusion, whether you need EM or GPR locating services, we are here to help. Our pricing is straightforward, and we are committed to providing you with the best service possible. Don't hesitate to reach out for your utility locating needs. We look forward to assisting you!


For more information, please visit our website or contact us directly. Your safety is our priority, and we are here to ensure that your digging projects are safe and successful.

 
 
 

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