Portland's Premier General Contractor Since 1996
You Dream It.
We Build It.
From custom homes to full commercial builds across the Portland metro — we bring over three decades of local craftsmanship and a proven on-time record to every project.
You Dream It. We Build It.
From custom homes to full commercial builds across the Portland metro — we bring over three decades of local craftsmanship and a proven on-time record to every project.
What We Do
Portland's Go-To Contractor for Every Project
De Marco Builders is known for guaranteeing both pricing and project completion timelines in writing while delivering exceptional quality craftsmanship.
Design-Build
One team from sketch to final walkthrough. Faster timelines and a single point of accountability.
Commercial Projects
Tenant improvements, ground-up commercial, and mixed-use developments delivered on schedule and on budget.
Custom Homes
Ground-up custom residential builds tailored to your land, your lifestyle, and the legacy you want to leave behind.
Residential Remodels
Kitchen remodels, bathroom renovations, whole-home transformations handled with the same care and attention as any of our other projects.
ADUs & Additions
Portland ADUs, garage conversions, backyard cottages, and second-story additions — designed to maximize your property's value.
Not Sure Where to Start?
Not sure which service fits your project? Tell us what you're building and we'll point you in the right direction. Consultations are always free.
Built on Speed. Founded on Quality.
Portland's Most Reliable General Contractor.
Portland has no shortage of contractors. What separates De Marco Builders is a nearly three-decade track record of delivering projects on time — every time. We use a critical path scheduling method that consistently delivers projects up to 10× faster than the industry average, without ever cutting corners to get there. When we give you a completion date, we mean it.
- Always on time. In over three decades serving Portland homeowners and businesses, we have never missed a project deadline. Not once
- One team, full accountability. Our design-build model means you have one point of contact and no finger-pointing between contractors.
- Transparent pricing. No hidden fees, no surprise change orders. What we quote is what you pay.
We Build All Across the Portland Metro.
De Marco Builders service the entire city of Portland including the surrounding areas — all of Saint Johns, North Portland, NE Portland / Laurelhurst, SE Portland / East Moreland Area, NW/SW Portland, Tigard, Beaverton, Hillsboro, St Helens, Warren, Scappoose. De Marco Builders will travel for quality substantial projects to the Oregon Coast and as far as Salem.
Our Projects
Recent Work
Design-Build Custom Home Portland | De Marco Builders
See how De Marco Builders transformed a 900 sq ft 1946 bungalow into a 2,400 sq ft custom home in just 120 days. Portland’s design-build general contractor.
Whole Home Remodel in NE Portland | De Marco Builders
Studs-out renovation: new electrical, plumbing, HVAC, two primary suites, relocated kitchen, and white oak finishes — completed in 120 days. Portland remodel contractor.
Backyard Cottage ADU Built in 89 Days | De Marco Builders
One of Portland’s most efficient ADU builds: an 800 sq ft craftsman backyard cottage, fully permitted and completed in just 89 days.
Client Reviews
What Our Clients Are Saying.
★★★★★
It was an absolute pleasure working with De Marco Builders, Inc. The boss is great to work with and truly values both their clients and employees. The team is dedicated, professional, and ensures high-quality work every step of the way. Highly recommend this company!
SAIMEN M.
★★★★★
Joe and his team have done several projects for us, including a bathroom update. They are professional, and their work is at the highest standard. I recommend them with no hesitation.
NICOLE S.
★★★★★
We are over the moon with the work Joe and company did in our bathroom. High quality materials completed with expertise and ahead of schedule. We could not have asked for more!!! Thanks Joe!!!!
DAN M.
Who We Are
Licensed. Bonded. Insured. Portland's Trusted Contractor.
De Marco Builders, Inc. is a licensed, bonded, and insured general contractor serving Portland, Lake Oswego, Beaverton, Tigard, and the greater metro area. Founded in 1996, we've built our reputation across nearly three decades on a simple promise: we show up on time, every time, and we deliver exactly what we said we would.
Same owners since day one. Nearly three decades later, the standard hasn't changed. No corporate buyouts, no revolving door of management — just the same family, the same crew, and the same commitment to delivering exactly what we promised, every time.
3+
decadeS IN BUSINESS
1400+
PROJECTS COMPLETED
100%
ON-TIME RECORD
FAQ
Common Questions.
Can't find the answer you're looking for? Reach out and we'll get back to you within one business day.
Do you offer free estimates?
Yes
How long does a typical project take?
It depends on the size, scope, design complexity and permit process.
Typical project timelines include:
- ADUs: 45–60 days
- Home Additions: 45–90 days
- Remodels: 30–90 days
- Custom Homes: 90–160 days
- Commercial Projects: 90–160 days
How do you price a project?
Every proposal from De Marco Builders provides complete cost transparency. Our estimates clearly show the construction costs, company overhead, profit, and total project cost so clients fully understand where every dollar is allocated.
Do you require a deposit?
No. Never. We do not require an upfront deposit. The first payment is due only after a portion of the contracted work has been completed.
What happens if costs change during the project?
We guarantee the contract price through project completion unless the homeowner requests additional work beyond the original scope or unforeseen structural conditions are discovered that were not visible during the initial evaluation.
Can you work within a specific budget?
Absolutely. De Marco Builders is a budget-driven builder. We work within the client’s established budget throughout the design, engineering, permitting, and construction phases. We utilize value-engineering principles to maximize quality while maintaining budget goals.
Are you licensed, bonded, and insured?
Yes. De Marco Builders is fully licensed, bonded, and insured. We maintain all required certifications and operate in full compliance with state regulations.
How do you handle unexpected issues that come up mid-project?
Unexpected issues are rare because of our extensive experience and thorough planning process. If an unforeseen issue does arise, it is addressed immediately, typically within 24 hours. We resolve issues in a code-compliant manner while protecting the project schedule.
How often will I receive updates?
Communication is one of our highest priorities. Once a client signs a contract, we maintain frequent communication throughout design, engineering, permitting, and construction. Clients receive regular progress updates, photos, and end-of-day reports so they remain informed from start to finish.
Our Blog
From the Field.
Practical guides, honest advice, and construction insights for Portland homeowners and business owners — no fluff, no filler, just information that actually helps.
May 19, 2026
How Long Does a Home Remodel Take in Portland?
De Marco Builders has completed more than 1,400 projects throughout the Portland Metro area. Typical project timelines include:
-ADUs: 45–60 days
-Home Additions: 45–90 days
-Remodels: 30–90 days
-Custom Homes: 90–160 days
-Commercial Projects: 90–160 days
Actual timelines vary based on project size, complexity, permitting requirements, and site conditions.
May 19, 2026
What Is Design-Build Construction?
May 7, 2026
How to Prepare Your Home for a Major Renovation
Ready to Build Something
You'll Love?
Get a free consultation with our team — no commitment, just a conversation about what's possible.
Get in Touch