Design It · Build It
Design-Build Contractor in Hillsboro
De Marco Builders is a licensed design-build contractor in Hillsboro, OR, taking projects from first sketch to finished space under a single contract. We bring the designers, the permitting, and the builders together as one team, so your plans are drawn to be built and your price is set before work begins.
How Design-Build Works
Design-Build: One Team, One Contract
On a traditional project, you hire a designer first, then look for a builder to price what’s been drawn. That means two companies, two contracts, and a real chance the plans and the budget don’t line up. When they don’t, you’re the one deciding what to cut. Design-build removes that gap by putting the people who design your project and the people who build it on the same team.
At De Marco Builders, that team works from your goals and your budget from the first conversation. Designs are shaped with cost and construction in mind, so questions get answered on paper instead of on site. When it’s time to build, the same people who drew the plans pull the permits and carry the project through to completion, with one contract and one point of contact. Our design-build services in Hillsboro keep that structure whether you’re reimagining part of your home or building something new.
Plans That hold up
The Right Design-Build Team in Hillsboro.
The decisions made during design set the course for everything that follows: the budget, the schedule, and how smoothly construction goes. A plan that looks great but hasn’t been checked against real building costs can lead to redesigns, revised numbers, and lost time. Choosing the right design-build contractor in Hillsboro means choosing a team that tests the plan against the build at every step.
As a team based in the Portland metro, we’ve spent years working alongside local trades and suppliers, and we design with the region’s permitting process in mind so plans move smoothly once they’re submitted. We don’t promise shortcuts. We promise a project that has been worked out on paper before it’s built on site, with a guaranteed contract price and completion schedule behind it.
THE PROCESS
What to Expect.
It begins with a free consultation, where we learn what you want to build, what you’re working with, and where your budget sits. From there, our team develops the design with real construction costs in mind, and you receive a clear proposal that lists construction costs, overhead, and profit separately.
Once the design is approved, the same team handles permitting and construction. We keep you informed with regular progress updates, photos, and end-of-day reports, so you always know where things stand. If something unexpected comes up, we address it quickly and keep the project moving. Your price and schedule are guaranteed, and we walk the finished project with you to make sure it matches what we promised.
WHY DEMARCO
Why Hillsboro Clients Choose Us.
Hillsboro's longest-serving custom builder
In business since 1996, we know Hillsboro'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 surprises, no exceptions — not once in over 1400 construction projects in the Portland metro.
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, the NW Natural Street of Dreams, BuildZoom, Nextdoor, and BusinessRate.
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 Hillsboro to Lake Oswego, Beaverton, Cedar Hills and every Portland neighborhood in between.
Our Services
Everything We Build in Hillsboro
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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You'll Love?
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