Northwest Line Builders, LLC

Phone Icon (509) 465-0196

License No. NORTHLB910B8

Installing Electrical & Transmission Lines the Right Way

Generate electricity across great distances with underground or overhead electrical line installation and transmission line maintenance from Northwest Line Builders, LLC. Located in Spokane, Washington, we utilize several boring machines to complete jobs in a timely manner. The number of crewmen is dependent upon the scope of each project.

Horizontal Directional Drilling

Horizontal Directional Drilling

Horizontal Diredtional Drilling (HDD) is a trenchless method of installing pipelines and counduits in the areas where traditional open cut excavations are not feasible and/or not desired for environmental and/or constructibility reasons.  It is commonly used for the installation of pipelines beneath rivers, highways, railroads and other environmentally sensitive areas where the topography or site conditions along a proposed alignment conflicts with conventional cuat and cover installation practices.  During the HDD process, a pilot hole is first drilled along a predetermined path.  The pilot hole is then enlarged in single or multiple steps (reaming process) to accommodate the pullback of the carrier pipe int the enlarged hole.

We are presently operating HDD rigs capable of completing projects both lage and small with pipe sizes up to 36 inches in diameter and HDD lengths over 1,500 ft.

Additional Underground Services Include:
  • Hydro Excavation
  • Plow - Cat D6
  • Plow - Rubber Tire
  • DW R15 Quad Track
• Cable Replacement
• Fiber Optics
• Power
• Telecommunications

Overhead Distribution

With specialized equipment and IBEW journeyman linemen supervised by extensively skilled leaders, we handle a wide range of medium and high-voltage overhead distribution projects. This includes new construction, maintenance, and emergency storm restoration. Our highly responsive crew has the ability to quickly accommodate your scheduling needs and critical outage requirements.

Transmission Lines

We possess the skills needed to correctly install and maintain your transmission lines or double circuits from 34.5kV to 500kV. Challenging concrete and footing projects are our specialty. For any job large or small, such as wood and steel poles in rock, dirt, wetlands, or mountains, we put great emphasis on collaborating with every client that enlists our services.


Our substation experience spans from small rebuilds to large turnkey projects at sizes up to 345kV. With capabilities that include line position additions, breaker position additions, upgrades, demolitions, and new construction, we can solve any challenge we encounter. Northwest Line Builders, LLC is well versed in dealing with remote locations, as well as highly populated urban areas.

Transmission Lines In a Winter Scene