High Rock Exteriors | Customer Deck Builder

This is an excellent testimonial for Mason and the work he does.

Chad Davison

Pacific Tree Management

We offer a 5% discount to active military, veterans and first responders. Thank you for your service!

Custom Deck Builder in Monroe, WA

Decks Built For the Pacific Northwest

Get a better outdoor living experience with our custom deck building services. We focus on quality craftsmanship, durable materials, and construction practices. From traditional wood to low-maintenance composite and PVC decking

New Deck Builds

From traditional wood to low-maintenance composite and PVC decking, get a custom deck built to fit your home, lifestyle, and budget.

New Deck Builds →

Deck Resurfacing

Give your existing deck a fresh look with new decking and railings or improve safety and extend the life of your deck with upgrades.

Deck Resurfacing →

Repairs & Maintenance

Take care of your deck with structural repairs, railing & staircase repairs or replacement, decking repairs, staining & washing.

Repairs & Maintenance →

Trustworthy, capable, and easy to work with. In an era where competent craftsmen are hard to find, I was pleased to find Mason Koivisto and High Rock Exteriors and Maintenance. Mason was quick to respond, provided a thorough and complete bid, and Calvin did excellent work in completing the project to install flashing to a cedar deck space where it had been overlooked by the original builder. All of this without having to wait weeks for project implementation. I highly recommend you get in touch with Mason for decking and maintenance/upgrading.

The Way