
Mukilteo's waterfront location and proximity to Boeing, Paine Field, and the Mukilteo ferry make it one of Snohomish County's most desirable communities — and garage conversions here can generate strong rental income or serve as a functional home upgrade. Northwest Home Pros is a licensed design-build contractor specializing in garage ADU conversions throughout Mukilteo and Snohomish County, handling design, permitting, and construction under one roof.
Whether you're converting an attached garage to house aging parents, creating a rental unit to offset your mortgage, or simply adding a finished bonus room or home office, a properly built conversion is an investment that pays for itself. Washington State's ADU-friendly regulations mean most Mukilteo properties can accommodate a conversion with relatively straightforward permitting.
A full ADU garage conversion in Mukilteo typically ranges from $65,000–$125,000+ depending on size, finishes, and plumbing requirements. We provide fully itemized estimates with transparent material pricing — no markups, no surprises. Call (425) 999-5003 for a free on-site consultation.
Full-service remodeling from design through final walkthrough
Convert your Mukilteo garage into a fully permitted accessory dwelling unit (ADU). Complete framing, insulation, plumbing, electrical, kitchen or kitchenette, full bath, and all finish work — managed from design through final inspection.
New detached ADU construction or garage-to-DADU conversions for Mukilteo properties. Built to current Washington energy code, Mukilteo/Snohomish County permitted, rental-ready or guest-suite configured.
Turn your Mukilteo garage into a quiet, professional home office. Full insulation, drywall, hardwood or LVP flooring, lighting, dedicated circuits, and network conduit — permitted and finished to residential standard.
Playroom, gym, studio, media room — any use you need. Mini-split climate control, custom finishes, and optional soundproofing available for Mukilteo garage conversions.
Private bedroom, kitchenette, full bathroom, and separate entrance for family members. We handle all permitting with Snohomish County and ensure the project meets all Mukilteo zoning requirements.
Gain living space without losing all your garage. We build the structural partition, insulate and finish the converted side to full residential standard, while keeping one bay for your vehicle.

Our Work
We completed a full garage-to-in-law-suite conversion in Mukilteo's Harbour Pointe area — a two-car garage transformed into an 800 sq ft one-bedroom, one-bath suite with separate entrance, full kitchen, and its own mini-split system. The project came in on schedule and on budget, fully permitted through Snohomish County.
Local Work
We've completed remodeling projects throughout Mukilteo — here's a sample of what we've built in your area.
Full ADU conversion — two-car garage to 1BR/1BA in-law suite, Harbour Pointe Mukilteo
Home office with custom built-ins, egress window, and dedicated HVAC, Mukilteo waterfront area
Partial garage conversion to media room — retaining one parking bay, Beverly Park neighborhood
Studio apartment conversion, single-car garage with full bath and kitchenette, Mukilteo
DADU new build, detached 350 sq ft backyard ADU, Mukilteo hillside neighborhood
Bonus room / gym conversion with rubber flooring, mirrors, and mini-split, Mukilteo
5.0 Stars · 14 Google Reviews
“I hired Patrick from Northwest Home Pros to refinish my large cedar deck. A top notch professional who worked efficiently and was reliable from start to finish. He's now permanently in my rolodex!”
— Marie W.
“I hired Northwest Home Pros for a complete bedroom remodel and am so glad I did! In every aspect of the job they were knowledgeable, dependable and paid attention to quality. Patrick is an honest professional!”
— Gail N.
“We had a complex whole-home remodel done by Northwest Home Pros. Multiple rooms, structural changes, the works. Patrick managed everything seamlessly. We highly recommend them for any major project.”
— Karen & Steve R.
Simple Process
We keep it simple — one contractor, one contract, one point of contact from day one through the final walkthrough.
We visit your home, listen to your vision, assess the space, and answer every question. No pressure, no obligation.
You get a fully itemized written estimate with transparent material costs — no hidden markups, no surprises.
We handle design coordination, material sourcing, permit applications, and scheduling — completely managed for you.
Our crew builds your project to spec. You sign off at the final walkthrough only when you're 100% satisfied.
Transparent Pricing
These are realistic ranges for Western Washington projects. Every home is different — contact us for a precise, itemized estimate tailored to your project.
$30,000 – $90,000+
Cabinets, countertops, flooring, appliances, layout changes
$15,000 – $55,000+
Tile, shower, vanity, fixtures, plumbing, lighting
$150,000 – $500,000+
Multi-room transformation — design through final build
$12,000 – $45,000+
Cedar or composite, custom size, permits included
$80,000 – $250,000+
Sunrooms, ADUs, room additions, garage conversions
$8,000 – $40,000+
Wall removals, beam installs, open-concept conversions
Northwest Home Pros serves homeowners across Western Washington.
Common Questions
Answers to the questions we hear most from Mukilteo homeowners.