★★★★★
"Ergo helped us rebuild our deck. They were professional, easy to communicate with, and very responsive throughout the project. The finished deck looks great, and we’re very happy with the quality of their work. Highly recommend!"
Seattle's #1 Trusted General Contractor · Family-Owned · Locally Rooted
Seattle General Contractor &
Home Remodeling Experts
Serving Seattle, Bellevue, Kirkland, Redmond & all of King County. Fully licensed, bonded & insured — built for the Pacific Northwest climate and codes.
Seattle's Trusted General Contractor
Home Remodeling & Construction Services in Seattle & King County
When Seattle and Bellevue homeowners need a reliable general contractor, they call Ergo Construction. We are a family-owned, fully licensed, and insured construction company rooted in the Greater Seattle area — proudly serving neighborhoods across King County from Kirkland and Redmond to Mercer Island, Shoreline, and Renton. Whether you need a kitchen remodel, a new deck, or emergency waterproofing, our crews are local, accountable, and ready to work.
The Pacific Northwest climate demands a contractor who understands more than blueprints. Seattle's 37-plus inches of annual rainfall, expansive clay soils, and persistent marine humidity create real challenges for any home improvement project. Every job we build — from bathroom remodels in Kirkland to foundation drainage systems in Sammamish — includes moisture barriers, proper flashing, and drainage engineering tailored to Washington State's wet climate. We also know King County and Seattle's building codes inside and out, managing every permit through the Seattle Department of Construction & Inspections (SDCI) and the relevant city permitting offices so your project is always legal and on schedule.
From a single-room upgrade to a full home transformation, Ergo Construction brings WA-licensed craftsmanship, transparent pricing, and genuine community pride to every job site. We are not a franchise or a call center — we are your neighbors, and we stand behind our work long after the last nail is driven.
Our Services
Six ways we build, remodel, and protect Seattle homes — all under one licensed roof.
New Construction
Additions, garages, ADUs & ground-up builds — fully permitted and PNW-ready.
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Interior Remodels
Kitchens, bathrooms & flooring transformed with expert craftsmanship.
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Exterior Remodels
Decks, roofing, siding, luxury windows & doors, and waterproofing.
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Demolition Services
Safe, controlled demolition and complete junk removal & cleanup.
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Spray Foam Insulation
Cut energy bills 20–40% with open- & closed-cell spray foam. Rebates available.
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Real Estate Services
Licensed buy & sell, investment, and pre-listing renovation.
Explore →Our Simple 4-Step Process
Transparent, simple, and stress-free from first call to final walkthrough.
01
Free Consultation
We visit your home, listen to your goals, and assess the scope — no cost, no commitment.
02
Design & Quote
We deliver a detailed plan and transparent, itemized estimate so there are zero surprises.
03
Expert Build
Our licensed crew executes with precision, keeping your home protected and your timeline intact.
04
Final Walkthrough
We don't close the job until you're 100% satisfied. Your approval is our finish line.
Why Ergo Construction
Built for Seattle. Built to Last.
Seattle's climate is unique — heavy rainfall, moisture intrusion, and strict local building codes demand a contractor who knows the Pacific Northwest inside and out.
- ✔ Moisture barriers & rot prevention built into every job
- ✔ Expert knowledge of Seattle & King County building codes
- ✔ Fully licensed, bonded & insured — verify our license anytime
- ✔ Local family business — we live and work in your community
- ✔ Clean job sites, respectful crew, transparent communication
10+ Years Serving
Greater Seattle
Greater Seattle
Google Reviews
What Seattle Homeowners Are Saying
5.0
★★★★★
Average Rating 5 Google Reviews
Verified Reviews
★★★★★
"They did a great job remodel my apartment"
★★★★★
"Did a great job for the garage!"
★★★★★
"Ergo Construction built the deck and backyard. They did an excellent job, surprisingly exceeded my expectation. They are professional, and get the work done on-time."
★★★★★
"❤️👌🏽"
Frequently Asked Questions
Common questions from Seattle & King County homeowners — answered by our local team.
01 Do I need a building permit for a kitchen or bathroom remodel in Seattle?
In most cases, yes. Seattle homeowners need permits for structural changes, electrical work, plumbing rough-ins, and HVAC modifications. Ergo Construction handles all permit applications with the City of Seattle and King County on your behalf — we know the Seattle Department of Construction & Inspections (SDCI) process inside and out, so your project stays legal and on schedule.
02 How does the rainy Pacific Northwest climate affect home remodeling projects in Seattle?
Seattle's high annual rainfall — averaging over 37 inches — means moisture intrusion is the #1 enemy of any home improvement project. As a local Seattle general contractor, we build moisture barriers, proper flashing, and drainage slopes into every deck, addition, and exterior project. We also use PNW-rated composite materials and pressure-treated lumber that resist rot and mold in our wet climate.
03 What drainage and waterproofing solutions do you offer for King County homeowners?
We specialize in French drain installation, interior and exterior basement waterproofing, sump pump installation, foundation crack repair, and surface drainage regrading throughout King County. Seattle's clay-heavy soils trap water around foundations, making proper waterproofing essential. We assess your property's specific drainage challenges and engineer a lasting solution.
04 Are you licensed to work in Seattle, Bellevue, Kirkland, and other King County cities?
Yes. Ergo Construction holds a valid Washington State Contractor License and is fully bonded and insured. Our license is recognized in all King County jurisdictions including Seattle, Bellevue, Kirkland, Redmond, Mercer Island, Renton, and Sammamish. You can verify our license anytime through the Washington State Department of Labor & Industries.
05 How much does a home remodel cost in the Seattle area?
Remodeling costs in Seattle vary based on scope, materials, and permit fees. A bathroom remodel in Seattle typically runs $15,000–$40,000, while a full kitchen remodel ranges from $30,000–$80,000+. Seattle's higher labor costs and strict building code requirements are factored into every project. We provide free, detailed, itemized estimates — no hidden fees, no surprises.
Have a question not answered here? Contact us directly — we respond within 24 hours.
Coverage Area
Proudly Serving Greater Seattle
Expert craftsmanship delivered directly to your neighborhood across King County.
Service Coverage Area
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Ready to start your project? Fill out the form and one of our experts will reach out within 24 hours.
- ✔ No obligation, completely free
- ✔ Fast response within 24 hours
- ✔ PNW-local expertise on every job
- ✔ Fully licensed, bonded & insured