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Renovation & Construction

Room Additions in Mercer Island, Washington

Licensed & bonded contractors with verified credentials • Transparent flat-rate pricing, no surprise bills • 24/7 emergency hotline for landlord support • All work permitted and code-compliant Serving Downtown Mercer Island, East Seattle, North End, South End and all Mercer Island neighborhoods

Licensed & Insured
24/7 Support
Trusted Network

Our Room Additions Services

Fast, reliable solutions for Mercer Island landlords and property owners

Room Additions - After
AFTER
Room Additions - Before
BEFORE
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Vetted Contractor Network

Every room addition contractor in our Mercer Island network is background-checked, licensed, bonded, and insured with established track records. We've already done the vetting so you don't waste time interviewing unreliable contractors or dealing with permit violations.

Transparent Project Pricing

Get detailed written estimates before work begins on your rental property. Our contractors provide itemized quotes for materials, labor, and permit costs, no hidden fees or surprise invoices that eat into your rental income.

Permit & Code Compliance

Room additions require proper permits and inspections in Mercer Island. Our contractors handle all permit applications, keep work meets Washington State building codes, and coordinate required inspections so your project stays compliant and protects your investment.

Landlord-Focused Communication

We understand you're managing this remotely while tenants are in place. Our contractors coordinate schedules around tenant availability, provide progress updates directly to you, and minimize disruption to your rental income during construction.

Quality Materials & Workmanship

Room additions are major investments in your rental property. Our contractors use quality materials that meet code requirements and provide warranties on their work, so your addition adds lasting value to your Mercer Island rental.

Service Area Coverage

Mercer Island landlords trust Valta Homes for room addition projects across the entire island, from East Mercer Way properties to homes near Town Center and the First Hill neighborhood. Our contractor network serves rental properties throughout Mercer Island and extends to nearby Bellevue, Seattle, and all of King County. adding a bedroom to increase rental value or expanding living space in a multi-family property, our vetted contractors understand local permitting requirements and deliver quality construction that protects your investment.

Vetted & Verified

Background-checked, licensed, bonded & insured

5+ Years Experience

Top-rated pros with proven track records

Quality Guaranteed

Every job reviewed, customer feedback matters

No Surprises

Fair pricing, no upsells, no shortcuts

We only work with pros we'd trust in our own homes.

Our Vendors Are Strictly Vetted

  • Every vendor is screened, verified, and continuously reviewed.
  • We work only with professionals we'd trust in our own homes.
  • Quality isn't optional — it's enforced.
  • If a vendor doesn't meet our standards, they don't stay.
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Areas We Serve in Mercer Island

How quickly can a contractor assess my room addition project?

Frequently Asked Questions

Common questions about Room Additions in Mercer Island

Mercer Island landlords choose Valta Homes because we pre-vet every contractor for licensing, insurance, and background checks. You avoid unreliable vendors and surprise bills.
No hidden fees. Your $199 membership locks in discounted rates, and all contractors provide written quotes before starting any room additions work.
Yes, once you find contractors you like, you can request them for future jobs. We note your preferences and prioritize your preferred room additions professionals.
Most room additions projects can begin within 3-5 business days of quote approval. Emergency work starts within 2-3 hours.
You receive detailed invoices, before/after photos when applicable, and completion reports. All documentation is stored in your member portal for tax records.
We're happy to connect you with other Mercer Island landlords who use our room additions services. Member testimonials and reviews are available on our website.

Stop Being a Tired Landlord

Join Valta Homes membership for room addition contractor support in Mercer Island and all of King County