top of page
Our Peterbilt Dump Truck


GB Underground is a full service excavation company specializing in Septic System repairs and Grinder Pump Installations on difficult sites. We have done Residentail Waterfront and Commercial facilities including Septic installations for businesses with commercial kitchens and delis. Some of our other services are installation of Storm systems and control devices / treatment units, trucking of sand, gravel, topsoil and landscape supplies. We have over 30 years experience in Kitsap County and surrounding areas. 

*Residential and Commercial Septic Systems

*Sewer Connections and 
Grinder Pumps

*Site Development and  
Underground Utilities

*Landscape Materials Delivery

*Dump Trucking

* Engineering and Septic Design services available upon request

* Engineered Residential and Co
mmercial block wall

*Construction consulting and Management 



(360) 731-3164

Contact Us

GB Underground LLC

(360) 731-3164

Email us:
Wa. State  Cont. Reg. #   GBUNDUL815MR

Add you message here

bottom of page