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Garage Conversion in Washington
Better Builders
5606 California Avenue Southwest, Seattle, WA 98136Better Builders is a Seattle-based general contractor specializing in residential remodeling, garage conversions, ADUs, kitchen and bathroom remodels, basement finishing, deck repairs, and exterior work, with dedicated project management.
read moreHuskies Construction
1201 Monster Road Southwest, Renton, WA 98057Huskies Construction in Renton specializes in home additions, ADUs, and DADUs. Services include garage conversions, granny flats, in-law suites, backyard cottages, and room additions, helping homeowners expand living space or generate rental income.
read moreJDI Construction
1409 Broadway Street, Vancouver, WA 98663JDI Construction is a Portland-based ADU contractor offering full design-build services for detached, attached, garage conversion, basement, above-garage, and interior ADUs, including permits and eco-friendly practices.
read moreTiny Cottage Builders NW
26650 Ice Harbor Drive, Burbank, WA 99323Tiny Cottage Builders NW offers ADU construction, garage conversions, basement finishing & home remodeling in Tri-Cities, WA. Led by Brandon Lott, every project is personally managed ensuring quality craftsmanship & clear communication.
read moreModel Remodel
1111 West Nickerson Street, Seattle, WA 98119Seattle's 2019 ADU law changes made it easier to build accessory dwelling units on single-family lots. DADUs can't exceed 50% of the main home's size. No parking required. New detached ADUs start around $350,000.
read moreSkyDADU
Kent, WA 98042SkyDADU is a DADU builder and equity partner serving King, Snohomish, and Pierce counties in Washington State. They offer fixed-price packages, up to 100% funding, and handle permitting, construction, and condominiumization for detached accessory dwelling units.
read moreLindal Homes
6840 Fort Dent Way, Seattle, WA 98188Lindal Homes offers custom ADU and DADU kit home solutions across the US and Canada. Flexible floor plans, the Lindal Elements collection, and system-built construction make adding a backyard cottage or guest suite efficient and cost-effective.
read moreElite Team Builders
701 5th Avenue, Seattle, WA 98104Elite Team Builders Inc. designs & builds ADUs—detached units, garage conversions & backyard cottages—in Seattle, Portland & Los Angeles. They offer custom design, quality materials & transparent pricing for lasting residential value.
read moreExceptional Home Builders Seattle
1525 11th Avenue, Seattle, WA 98122Exceptional Home Builders is a Seattle ADU contractor with 20+ years of experience. They offer full-service ADU construction, design-build, permitting, interior design, and renovations for backyard cottages, garage conversions, and basement units.
read moreCascadia ADU
901 1st Street, Snohomish, WA 98290Cascadia ADU builds attached, detached, garage & basement ADUs across King, Snohomish, Skagit & Chelan Counties, WA. Full-service design, permitting & construction completed in 8–10 weeks with 10+ years experience.
read moreNew Day Construction
15021 116th Place Northeast, Kirkland, WA 98034New Day Construction is a licensed ADU builder in Bellevue, WA, with 21+ years of experience and 250+ projects. They build detached, attached, garage, basement, and custom ADUs, managing permits and design from start to finish.
read moreCruvers Contracting LLC
1002 Pine Avenue, Snohomish, WA 98290Cruvers Contracting LLC builds ADUs in Snohomish, WA, tackling rural challenges like septic systems, slopes, and wooded lots. Serving areas including Lake Stevens, Monroe, and Everett with phased planning and durable, site-specific construction.
read moreDeane Home Services
17837 1st Avenue South, Normandy Park, WA 98148Deane Home Services builds ADUs in South King County, WA, including garage conversions, basement remodels, and detached backyard cottages. Licensed, bonded & insured. Serving Kent, Renton, Federal Way & more.
read moreDrew Thatcher Construction
23 Country Club Drive Southwest, Lakewood, WA 98498Drew Thatcher Construction builds ADUs in Lakewood, WA, including detached units, attached ADUs, and garage conversions. Founded by a Navy nuclear engineer, they offer design-build services with local Pierce County expertise.
read moreOther cities in Washington
- Bainbridge Island
- Battle Ground
- Bellevue
- Bellingham
- Bremerton
- Burbank
- Camas
- Edmonds
- Everett
- Fall City
- Federal Way
- Kennewick
- Kent
- Kirkland
- La Center
What you need to know
Searching for top Garage Conversion ADU Contractors in Washington? Our directory highlights trusted local professionals who specialize in designing and building accessory dwelling units (ADUs).
Working with a qualified Garage Conversion ADU Contractor in Washington ensures your ADU project meets local building codes, zoning laws, and permit requirements. Whether you're planning a detached ADU, garage conversion, or backyard cottage, experienced Garage Conversion professionals can guide you through every step.
Washington homeowners are increasingly investing in ADUs to create additional living space, generate rental income, or support multigenerational living. The Garage Conversion experts featured here bring local expertise and proven experience to help make your project a success.
Browse our listings to find the best Garage Conversion ADU Contractors in Washington, and get started today.