New Builds
Ground-up construction built to spec, on schedule, and to last.
Our Work
Recent Projects
A look at recent projects — decks, kitchens, roofing, siding, and more.
Built on a Solid Foundation
From new builds and full remodels to roofing, siding, and rot repair — CornerStones Building LLC handles your project start to finish with craftsmanship that lasts.
What We Do
One trusted crew for every part of your project — interior to exterior, repairs to ground-up builds.
Ground-up construction built to spec, on schedule, and to last.
Kitchens, additions, and whole-home transformations done right.
Modern, functional bathrooms from layout to finishing touches.
Precise, clean tile for floors, showers, backsplashes, and more.
Find and fix wood rot before it spreads — restoring structure and safety.
Strong, square, code-compliant framing for any structure.
New roofs and reliable repairs that keep the weather out.
Durable, great-looking siding that protects and elevates your home.
Energy-efficient window installation and replacement.
Custom-built sheds for storage, workshops, and more.
Privacy, security, and curb appeal with quality fence builds.
Shape your outdoor space — clean, functional, and inviting.
About Us
CornerStones Building LLC is a full-service general contractor built on honest work and lasting results. Whether you're planning a new build, updating a bathroom, repairing rot, or replacing a roof, we treat your project like it's our own.
We handle the details so you don't have to — clear communication, clean job sites, and quality you can stand on for years to come.
Why CornerStones
We don't cut corners. Every project is built to last with materials and methods we stand behind.
From framing to finish, you get a single accountable crew — no juggling subcontractors.
Straight answers, honest pricing, and updates so you always know where things stand.
We respect your time and your money, and we deliver what we promise.
How We Work
From the first call to the final walkthrough, we keep things clear and easy.
Call, text, or send your project details. We'll set up a time to talk through what you need.
We assess the work and give you a clear, honest, no-obligation estimate.
Our crew gets to work — quality craftsmanship, clean job sites, and steady updates.
We walk the finished project with you to make sure everything is done right.
Our Work
A look at recent projects — decks, kitchens, roofing, siding, and more.
FAQ
Yes — every estimate is free and comes with no obligation. Reach out and we'll get you a clear, honest quote.
Absolutely. CornerStones Building LLC is a registered, bonded, and insured Washington contractor. Our registration number is listed at the bottom of every page.
We serve the local area and surrounding communities. Not sure if you're in our range? Just give us a call and ask.
Yes. From a quick rot repair or fence to a full remodel or ground-up build, we take on projects of all sizes with the same level of care.
It depends on the scope of the work. We'll give you a realistic timeline with your estimate, and we keep you updated as the project moves along.
Call or text us at (360) 485-8847, or fill out the form below. We'll be in touch quickly to talk about your project.
Get a free, no-obligation estimate from a contractor you can trust.
Get In Touch
Tell us about your project and we'll get right back to you. No pressure, no obligation.