About Sender

Sender Residential is a Seattle-based general contractor specializing in basement renovations, ADU conversions, and DADU construction. With over 10 years of experience in residential construction, we help homeowners transform underused or unfinished spaces into legal rentals, expanded living areas, and fully detached backyard units.

We’re a client-focused remodeler known for honest communication, transparent pricing, and collaborative planning. Whether you already have a full set of plans or are just beginning to explore your options, we’ll guide you through the entire process from design to permit to build and help bring your vision to life.