General construction · Done right
General Contractor in Portland Oregon.
Not every project fits neatly into a single category. Whether you're tackling structural repairs or a project that touches several parts of your property at once, you need a general contractor in Portland who can manage the whole scope. De Marco Builders has provided general construction services to Portland property owners since 1996, bringing the same licensing and accountability to every job, regardless of size or complexity.
One team · Full accountability
One Contractor for Every Phase of Your Project.
General construction covers a lot of ground — framing and structural work, permitting, site coordination, trade scheduling, and the day-to-day oversight that keeps a job moving. Handling that under one roof, with one point of contact, is what separates a smooth project from a frustrating one. As a general contractor in Portland, De Marco Builders manages every phase directly, so nothing falls through the cracks or gets lost in translation along the way.
That kind of coordination matters most when a project touches multiple parts of a property, or moves through several stages at once. Instead of juggling separate contractors for separate pieces of the job, you have one team accountable for the outcome from the first walkthrough to the final inspection. It's a more straightforward way to build — and one that's kept Portland property owners working with De Marco Builders for nearly three decades
Built on process, not guesswork
Quality That's Not Left to Chance.
A general construction project is only as strong as the planning and oversight behind it — accurate permitting and a realistic schedule before work begins, and consistent supervision throughout to confirm the framing is square, the systems are code-compliant, and the work matches what was actually specified. That level of attention comes from nearly three decades of managing construction projects across the Portland metro area, and it's the difference between a project that's simply completed and one that's built to last.
THE PROCESS
What to Expect.
General construction projects move through core phases — assessment, planning, permitting, and construction — but the sequencing and coordination matter more as scope grows. A thorough upfront evaluation, clear documentation, and a project schedule set before work begins are what keep a general construction project in Portland on track, with fewer surprises once crews are on site.
From there, you can expect a clean, organized job site, regular progress updates, and a contractor who treats your property with the same care as if it was their own. The project concludes with a final walkthrough to confirm every detail was completed to the standard it was built for — the same standard we bring to every job De Marco Builders takes on.
WHY DEMARCO
Why Portland Homeowners 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
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 Projects
Recent Work
A Home Renovation in NE Portland
De Marco Builders completed a full interior and exterior renovation, transforming a 1936 NE Portland home into an updated Portland […]
More Room to Grow: A Restaurant Expansion in Hillsboro
De Marco Builders delivered this commercial build in Hillsboro, Oregon — a new banquet room, a redesigned entrance, and a […]
Design-Build Custom Home in Portland
See how De Marco Builders transformed a 900 sq ft 1946 bungalow into a 2,400 sq ft custom home in […]
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