We specialize in building dream outdoor living spaces in Washington and Oregon. Our team of works directly with you to plan, build, and complete an outdoor living space you will love for many years. 

Timberline Patio Cover Added to House

Under Deck System

Undercover Systems adds strength to your raised, or multi-story deck, as well as value to your home with its sturdy manufacturing and aesthetic appearance.

Hardwood Deck Example

Pergolas, Arbors & Gables

We offer many options and custom elements such as shape and size, build location, curved characteristics, building material, styled columns and accessory fixtures.

outdoor living space and gas fireplace

Our Patented System

Want to know why homeowners love Undercover Systems® patented* under deck ceiling system? Find out what sets us our underdeck system apart from the rest of our competitors.

Let us show you why UnderCover Systems has become the go-to source for creating outdoor living space in the Pacific Northwest. For service in Washington Call us at (425) 243-8023 or Oregon at (503) 517-8492. You can also contact us online to schedule an ESTIMATE.