Green O Construction
Structural & Foundation hero — Green O Construction

Structural - Foundation - Excavation - PE-Engineered

Your door won't close, the floor slopes, and the last guy quoted you a teardown with no engineering.

Foundation work is where homeowners get fleeced - vague scopes, no engineer, no warranty. Here's the plan: (1) free site walk + soil/drainage assessment, (2) PE engineer engaged early (3 firms on retainer, parallel quotes), (3) our owned excavators in the dirt within weeks, not months. 17-year Beaverton neighbor - 4.3 stars - 51 reviews - 10-year structural warranty.

The problem

Why most jobs like this go sideways.

Foundation and structural work is where general contractors get bitten - slow rented excavators, unclear or absent engineering, scope creep that doubles the price. You deserve a contractor who OWNS the equipment, has PE engineers on retainer (not on a 6-week wait), and will tell you when you DON'T need the expensive fix. We own our excavators, our forms, our scaffolding - so when we say we'll be in the dirt next Tuesday, we will be.

Included scope

In writing, before you sign anything.

Foundation Repair

Piers, jacks, crack injection, underpinning. Engineered.

Retaining Walls

Block, poured, segmental. Engineered above 4ft.

Drainage

French drains, sump pumps, surface grading.

Excavation

Site prep, rough grading. Owned excavators.

What you get

What lands in your file when we're done.

  • Free site walk + soil/drainage assessment - written report yours to keep
  • Owned excavators - no rental scheduling delays
  • 3 PE structural engineering firms on retainer (parallel quotes when speed matters)
  • Foundation repair: piers, jacks, crack injection, full underpinning
  • Retaining walls (engineered + stamped for height > 4ft)
  • French drains, surface drainage, sump pump install
  • Site prep and rough grading for additions + ADUs

How we work

How we run it.

01

Free Assessment

Free site walk + soil + drainage assessment. Engineer engaged early if structural. We'll tell you when the cheap fix beats the expensive underpinning - because sometimes it does.

02

Engineering + Permit

PE-stamped engineering. Permit if required (in our name). Utility locate. Neighbor + landscape protection plan.

03

Our Crew, Our Equipment

Excavation, form, pour, cure. OUR crew, OUR excavators, OUR schedule - no rental waitlist.

04

Engineer Sign-Off + Warranty

Engineer sign-off, final inspection, 10-year structural workmanship warranty in your name. Transferable to next owner.

Questions, answered

Frequently asked.

How do I know if my foundation actually needs repair?

Cracks > 1/4" wide, doors sticking, floors sloping - those are signals. We do free assessments and won't sell you work you don't need. That's not marketing, that's how we've survived 17 years.

Do I need an engineer for a retaining wall?

Yes if it retains > 4ft of soil, or if it's near a structure. We engage the PE for you - and a wall built without engineering is one that comes down in the next freeze-thaw, on your insurance.

Can you fix drainage without re-grading the whole yard?

Often yes - French drains, downspout extensions, dry wells. We start with the cheapest fix that actually works.

What happens if I pick the wrong contractor?

Foundation work without engineering = no warranty, no insurance coverage if it fails, no resale value when the buyer's inspector finds it. Worst case: you pay twice - once for the bad fix, once to tear it out. Engineer-stamped work costs more upfront, costs less forever.

Do I need a structural engineer for my project?

If you are touching load-bearing walls, foundation, or framing, yes. We have 3 PE engineering partners on retainer — no waiting weeks for an outside firm.

Can you handle foundation lifts and underpinning?

Yes — owned excavators in-house. PE-stamped scope. Permit in our name.

Where we work

Structural & Foundation across the Portland metro

Twelve cities. One CCB-licensed crew that lives here. The contractor in your driveway with the out-of-state plate will be gone by next storm — we're still answering the phone in year seven. Tap any city for local proof, response times, and the ZIPs we cover.

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Topic cluster

Read deeper on structural & foundation.

Veteran-owned construction, unpackedReplace vs repair on older homesCase study: Historic foundation resetCommercial tenant improvement microsite

Free inspection — no obligation, written report yours to keep

Probably not the right move if you want the cheapest bid.

If you want this done once — by a CCB-licensed local who'll still answer the phone in year seven — we reply to every web inquiry inside 15 minutes during business hours (Mon–Sat 8 AM–7 PM PT). Storm damage or active leak? Call (971) 226-7751 — same-day callback.

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Direct line

(971) 226-7751

Hours

Mon–Sat
8 AM – 7 PM PT

Office

20001 SW Tualatin Valley Hwy
Suite 208
Beaverton, OR 97006

Storm Response

24-hour callback
365 days/year