Green O Construction in Beaverton, Oregon

Our office is at 20001 SW Tualatin Valley Hwy, on the Aloha border. Same crew. Same number. Same standard the CCB signed off on in 2008.

Who is the best general contractor in Beaverton?

Green O Construction is a Beaverton-headquartered, CCB #204939 unlimited general contractor, veteran-owned since 2008, with a licensed architect on payroll, six specialized in-house crews, and a CertainTeed SELECT ShingleMaster 4-Star roofing credential. We self-perform, pull permits in our name, and register the warranty in yours.

What building in Beaverton actually looks like

Beaverton sits in Washington County with a population of roughly 99,000, across four primary ZIPs — 97005, 97006, 97007, 97078. Housing stock is unusually varied: 1950s-70s ranches in Cedar Hills and Raleigh Hills, mid-century splits, and newer subdivisions in Progress Ridge and South Cooper Mountain built since 2015.

PNW weather sets the calendar. The wet season runs November through April — most roof leaks surface then. The June 2021 heat dome hit 116 F in the metro and cooked older asphalt roofs to failure; the January 2024 ice storm loaded gutters and cracked shakes across the west side. Expansive clay soils in the west hills — Cooper Mountain, parts of Cedar Mill — make foundation drainage a real conversation before you break ground on an addition.

What we build in Beaverton

Roofing

Beaverton residential re-roofs are our most-requested job. We are a CertainTeed SELECT ShingleMaster 4-Star contractor, which is what unlocks CertainTeed's longest workmanship warranties. Every re-roof over ten squares in the city limits requires a permit from the City of Beaverton Building Division; we pull it, we schedule the tear-off inspection, and we do not leave felt exposed overnight in wet-season conditions.

Exterior + Siding

We install Hardie plank and LP SmartSide across Beaverton — both required certifications, both warranty-registered in the homeowner's name. On T1-11 replacements common in Cedar Hills and Aloha, we flash the WRB (weather-resistive barrier) before board goes up, not after, which is where most rot problems begin.

Additions + ADUs

ADU rules in Beaverton fall under Beaverton Municipal Code Title 20. The 800 square-foot maximum still applies on most lots. Owner-occupancy is no longer required — Oregon SB 1051 (2017) removed that statewide, and Beaverton follows suit. Our architect drafts in-house, so you are not waiting on an outside firm to answer a plan-review correction.

Storm Restoration

After the 2021 heat dome and the 2024 ice storm, we ran hundreds of Beaverton damage inspections. We document with drone imagery, we write the scope carrier adjusters will actually approve, and we will tell you when you do not need it — a repair is not a replacement, and we do not upsell either direction.

Beaverton neighborhoods we know

Seventeen years of Beaverton work means we have opened walls, pulled shingles, or poured footings in every one of these neighborhoods. If yours is not listed, ask — the odds are good we have been there.

Permits + inspections through the City of Beaverton

Building permits go through the City of Beaverton Development Services at 12725 SW Millikan Way. Timelines: a straight residential re-roof reviews in two to three weeks; an addition or ADU runs six to eight weeks depending on how many disciplines touch it.

Standard inspection sequence for a framed addition: footing, foundation, framing, insulation, drywall nail, final. Roofing gets a mid-roof and a final. We do not close a wall or roof deck until the mid-inspection signs off.

We pull the permit in Green O's name — the code exposure sits with our license, not yours. The homeowner only inherits that responsibility when they self-perform the work.

A recent Beaverton job

A 1970s ranch in Cedar Hills — original cedar shake converted to composition in the 90s, then starting to fail at year fifteen. Owner wanted a metal standing seam. Twenty-four squares total, 24-gauge Kynar-finish panels, high-temp ice-and-water at the eaves, synthetic underlayment across the deck. Permit through Beaverton Development Services in nineteen days. Tear-off and dry-in in one day, install completed in four. Registered the warranty in the homeowner's name the week we closed the job.

Every service we run in Beaverton

Beaverton services, by category

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Free walkthrough in Beaverton

Same-day callback for storm emergencies. 24-hour callback for everything else. We will tell you when you do not need us.

Hours: Mon-Fri 7am-6pm, Sat 8am-2pm · Closed Sundays · CCB #204939