
Northwest Home Pros provides professional home addition services throughout Snohomish County. As an experienced home additions contractor, we help homeowners expand their living space with well-designed and structurally sound additions.
Our services include room additions, second-story expansions, and structural modifications. We manage all phases of the project, from planning and framing to finishing and final details.
Home additions often involve complex coordination between multiple trades, including electrical, plumbing, and HVAC systems. Our team ensures each phase is completed efficiently and to a high standard.
We are committed to delivering additions that blend seamlessly with your existing home while improving overall functionality.
Full-service remodeling from design through final walkthrough
Expand your home with a single-room addition — bedroom, office, or bonus space. We handle design, engineering, permitting, framing, and all interior finishes.
Adding a second floor requires careful structural planning. We manage engineering, permits, and construction to ensure your expansion is built right.
Home additions often require modifications to existing load-bearing walls, foundations, or roof lines. Our team handles complex structural work with precision.
Additions require extending your home's systems — we coordinate all trades directly — including trusted licensed specialists for plumbing, electrical, and HVAC — to ensure every system is properly integrated into the new space.
We finish additions to match the existing home — flooring, trim, paint, and fixtures that blend seamlessly with what's already there.
From planning through final inspection — one contractor manages your entire home addition in Snohomish County. Clear timelines, transparent pricing.
Our Work
A look at recent work completed by our team in Snohomish County and surrounding areas.





Our Work
We recently completed a primary suite addition for a Snohomish County homeowner — adding over 400 square feet that included a full bedroom, walk-in closet, and custom bathroom. Our team managed structural modifications, all permits, framing, and every interior finish from floor to ceiling.
Local Work
We've completed remodeling projects throughout Snohomish County — here's a sample of what we've built in your area.
Primary suite addition — bedroom, walk-in closet, and custom bathroom build
Bonus room addition above garage — structural engineering and full build
Single-room addition with full electrical, plumbing, and HVAC extension
Second-story expansion — permits, framing, and full interior finish
Office and flex-room addition coordinated alongside interior remodel
Sunroom addition with structural modifications to existing exterior wall
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
Full-service remodeling across Western Washington — kitchens, bathrooms, additions, and more.
Common Questions
Answers to the questions we hear most from Snohomish County homeowners.