Commercial Construction · Portland, OR
Commercial Construction Done Right.
De Marco Builders brings the same craftsmanship, accountability, and critical path scheduling that Portland homeowners trust — to commercial projects of every size.
Built for both
Thirty Years of Construction Experience. Residential and Commercial
Our expertise doesn't stop at the front door of a custom home. We bring the same team, the same standards, and the same critical path approach that has made us a household name in Portland residential construction — to commercial projects of every size and scope.
Every commercial project we take on is held to the same bar as the custom homes Portland families have trusted us with for three decades. If you need a commercial contractor who shows up, communicates clearly, and delivers what they promised — you're in the right place.
Construction that Performs
Commercial Work Demands More. We Deliver It.
Commercial spaces are used differently than residential ones. They accommodate more people, absorb more daily wear, and are held to stricter regulatory standards — all of which demand a higher level of precision during construction. A well-built commercial space accounts for those demands from the start, with structural decisions, material selections, and mechanical systems specified for the environment they will be operating in.
The difference between a commercial build that ages well and one that doesn't usually comes down to the decisions made before construction begins — how thoroughly the project was planned, how carefully the specifications were drawn, and how closely the work was supervised during execution. De Marco Builders brings nearly three decades of construction experience to every commercial project — the kind of experience that shows in the quality of the finished space and in the confidence of knowing the job was done right.
THE PROCESS
What to Expect.
Commercial construction projects move through several distinct phases — pre-construction planning, permitting, site preparation, and construction — each requiring precise coordination to keep the project on schedule and within budget. The pre-construction phase is particularly important in commercial work, as code requirements, occupancy classifications, and commercial building standards add layers of complexity that need to be addressed thoroughly before work begins. A complete and accurate plan at the outset is what keeps a commercial project moving cleanly from one phase to the next.
Once construction is underway, clients should expect consistent communication, documented change management, and a job site that is maintained to a professional standard throughout. Commercial projects often involve active businesses, occupied neighboring spaces, or time-sensitive openings — all of which require a level of coordination and site management that goes beyond standard construction practice. Nearly three decades of commercial and residential construction experience means those demands are not new territory. Every phase is managed with the precision and accountability that a project of this nature requires, and every finished space is one that is built to code, delivered on schedule, and ready to perform from day one.
WHY DEMARCO
Why Portland Clients Choose Us.
Portland's longest-serving custom builder
In business since 1996, we know Portland's neighborhoods, soils, permits, and inspectors better than anyone.
Fixed price, fixed schedule
What we quote is what you pay. The date we give you is the date we hit. No surprise change orders, no budget creep, no exceptions — not once in 30 years of Portland construction.
One team from start to finish
Design, permits, construction — same crew, same point of contact, from the first site walk to the day we hand you the keys. No gaps in accountability, no finger-pointing when something needs to be fixed.
Award-winning craftsmanship
Recognized by Portland Monthly and the NW Natural Street of Dreams.
Family-owned since day one
Same owners, same values, nearly three decades running. You work with the people whose name is on the door.
Serving all of Portland Metro
From Lake Oswego and West Linn to Beaverton, Tigard, and every Portland neighborhood in between.
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. Initial consultations and estimates are always free. Reach out and we'll get back to you within one business day.
How long does a typical project take?
It depends on the size, scope, design complexity, permit process, and material availability. Smaller remodels may take only a few weeks, while larger custom homes or commercial projects can take several months. We use a critical path scheduling approach that allows us to complete projects up to 10× faster than the industry average without compromising quality. Before construction begins, we provide a projected timeline and keep clients informed throughout every phase.
How do you price a project?
Pricing is based on the size and scope of the project, design complexity, materials, site conditions, engineering requirements, and overall timeline. We provide a detailed, transparent estimate tailored to your goals and budget — and work closely with you throughout planning to maximize value and avoid unexpected costs.
Do you require a deposit?
Yes, in some cases we do require a deposit, depending on the size and nature of the project. However, our typical process is progress-based billing, where clients are billed as each phase or scope of work is completed.
At De Marco Builders, we believe in delivering results first before requesting payment whenever possible. This approach reflects our confidence in the quality of our work while also giving our clients greater peace of mind throughout the construction process. Any required deposits or payment schedules are discussed clearly and agreed upon before the project begins.
What happens if costs change during the project?
Project costs typically remain consistent with the original estimate unless you request changes to the scope of work, or there are significant shifts in material pricing due to market conditions beyond our control. Any changes are communicated clearly and promptly before we proceed, and documented through a written change order outlining the updated scope, pricing, and schedule — so you approve everything before additional work begins.
Can you work within a specific budget?
Yes. At De Marco Builders, we work closely with our clients to understand their budget goals and priorities from the beginning of the project. Our team helps guide design choices, material selections, and construction options to maximize value while maintaining quality craftsmanship.
Through careful planning and transparent communication, we strive to create solutions that align with both the client’s vision and budget without compromising the overall integrity and functionality of the project.
Are you licensed, bonded, and insured?
Yes. De Marco Builders is fully licensed, bonded, and insured. We are committed to maintaining professional standards, quality workmanship, and compliance with all applicable building regulations and safety requirements, giving our clients confidence and peace of mind throughout the construction process.
How do you handle unexpected issues that come up mid-project?
If unexpected issues arise during the project, we address them promptly and communicate with the client right away. However, we rarely experience major unexpected issues because we carefully plan and manage each project to help prevent unnecessary problems before they occur.
Our team works to find practical and cost-effective solutions while minimizing delays and keeping the project moving efficiently. Any necessary changes are discussed and approved before additional work proceeds.
How often will I receive updates?
Clients receive regular updates throughout the project, including progress, scheduling, and any important developments. We believe clear and consistent communication is essential to keeping projects running smoothly and ensuring our clients stay informed every step of the way.
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.
Ready to Build Something
You'll Love?
Get a free consultation with our team — no commitment, just a conversation about what's possible.
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