Mason County Septic and Excavation Company

Led by founders Don and Dana Woolliscroft, B-Line Construction is a locally based, family owned business, specializing in septic design and installation of advanced systems, and pumping, septic design services, excavation contracting, site prep, tree removal, and demolition.

The company started in Shelton, Washington in 1991 originally specializing in excavation and slowly building to the company we are today, from septic design to demolition and everything in between.

B-Line is a rarity among construction companies in Mason County in that we do all of our own site work, road building, septic design and installation, drainage.

The advantage to you as a customer is having one company with many years of experience, responsible for 'doing it right' from start to finish. We strive for excellence and to that end, cut no corners in either workmanship or materials in order to provide you the best there is.

Excavation services and septic design, septic system installation and repair and septic pumping keep the company very busy during the year.

B-Line is fully insured, licensed, and bonded.

Contact Us if you have any questions or need a bid.