Vetted contractors with verified credentials • Background-checked and fully insured teams • Transparent pricing with no surprise bills • 24/7 landlord support hotline Serving Downtown Carnation, Tolt River Valley, Stillwater and all Carnation neighborhoods
Fast, reliable solutions for Carnation landlords and property owners


Our room addition specialists in Carnation are licensed general contractors with complete insurance coverage. Every team member passes background checks and maintains bonding requirements, protecting your investment throughout the construction process.
No surprise bills or hidden fees during your room addition project. You'll receive detailed estimates upfront with clear timelines and milestone payments. Our membership gives you access to pre-negotiated rates that beat typical market pricing by 15-20%.
We handle all permitting requirements and keep your room addition meets King County building codes. From foundation inspections to final walkthroughs, our contractors manage the entire compliance process so your investment is protected and legally sound.
Adding square footage while tenants are in place requires careful planning. Our teams work around occupant schedules, maintain clear communication about construction timelines, and minimize disruption to rental income during your expansion project.
From design consultation through final inspection, you get dedicated support managing your room addition. Our 24/7 hotline connects you with project coordinators who track progress, handle contractor communication, and keep your timeline stays on track.
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.
Carnation landlords trust Valta Homes for room addition projects throughout the Tolt River Valley and surrounding areas. We serve properties in Downtown Carnation, along the Highway 203 corridor, and neighboring communities in Duvall and Fall City. Our contractor network understands the unique challenges of expanding rental properties in rural King County, from septic system considerations to well water impacts during construction.
Common questions about Room Additions in Carnation
Join Valta Homes membership for professional room addition support in Carnation and all of King County. One annual fee covers access to vetted contractors, transparent pricing, and 24/7 project coordination.