Licensed & bonded contractors with established local reputation • Background-checked builders serving King County • 24/7 emergency hotline for urgent construction issues • Discounted rates through Valta Homes membership Serving Downtown Federal Way, Twin Lakes, Steel Lake, Redondo Heights and all Federal Way neighborhoods
Fast, reliable solutions for Federal Way landlords and property owners


Our Federal Way room addition specialists handle the entire permit process with the city, so your addition meets all building codes and zoning requirements. We coordinate inspections and manage timelines so you don't waste hours at city hall or deal with permit delays that cost you rental income.
Every room addition starts with proper foundation work and structural engineering. Our vetted contractors assess load-bearing requirements, pour foundations correctly the first time, and keep your addition integrates smoothly with your existing rental property without compromising structural integrity.
We use durable, tenant-proof materials designed for rental properties. Our builders understand that your room addition needs to withstand years of tenant turnover while maximizing your property value. Expect professional framing, insulation, electrical, and finish work that passes inspection every time.
Room additions typically take 8-12 weeks, but our contractors maintain realistic schedules and communicate delays immediately. We coordinate with your existing tenants when needed and keep minimal disruption to your rental income. No surprise timeline extensions that leave your property in limbo.
A well-executed room addition in Federal Way can increase your rental income by $400-800 monthly while significantly boosting property value. Our team helps you make smart decisions about bedroom additions, expanded living spaces, or accessory dwelling units that deliver real ROI for your investment property.
Background-checked, licensed, bonded & insured
Top-rated pros with proven track records
Every job reviewed, customer feedback matters
Fair pricing, no upsells, no shortcuts
We only work with pros we'd trust in our own homes.
Valta Homes serves rental property owners throughout Federal Way, from Twin Lakes neighborhoods where growing families need extra space to Steel Lake area homes perfect for ADU conversions. Our vetted room addition contractors know Federal Way's building requirements and work efficiently across Downtown Federal Way properties and surrounding communities. We also serve landlords in nearby Auburn, Kent, Des Moines, and Tacoma, providing the same reliable construction management across King County.
Common questions about Room Additions in Federal Way
Join Valta Homes membership for room addition support in Federal Way and all of King County