Your Trusted ​Marine Construction Contractors

With over 20 years of hands-on experience in the marine construction industry, our team brings deep knowledge and a personal touch to every waterfront project. While many marine construction contractors operate with large, rotating crews, we stay involved from start to finish, ensuring reliable results and friendly, down-to-earth service every step of the way.

Our founder got his start at just 19 years old, working hard, learning every part of the job, and gaining the trust of customers who still call him to this day. After two decades of doing the work he loves, he saw an opportunity to start Sea Anchor Marine Construction, a business built on the values of honesty, quality, and dependable service.

He wanted to offer something different from the big companies: a company where the owner shows up on-site, works alongside the crew, and treats every job like it’s being done for a neighbor. That’s still how we operate.

Based in Renton, WA, we proudly serve residential property owners across Seattle and Lake Washington. Whether it’s boat lifts, pile repair & driving, dock building, and repairs, or barging materials to hard-to-reach homes, we know the challenges waterfront homeowners face, and we’ve built our services to solve them. We’re fully licensed and insured, and we’re always on-site to make sure the job is done right.

We stand apart by offering not just durable construction solutions, but guidance through difficult permitting processes and accessibility issues. Our barge service helps other builders, landscapers, and homeowners tackle projects where road access is limited or non-existent. It’s just one more way we deliver value where others can’t.

At Sea Anchor Marine Construction, we’re committed to providing reliable service you can count on, no matter the size of the job. We’re your neighbors, and we’re here to help you protect, repair, and build your waterfront investment the right way.