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Active RGC Residential General Contractors

MASON Williamson Oberman - Portland, Oregon

Oregon CCB license #223127 - MASON Williamson Oberman - Portland, Oregon. License status: Active. Valid through February 18, 2028.

Portland, Multnomah County  ·  CCB since 2018  ·  7 yrs

#223127
CCB License
$25K
Bond
$1M
Insurance
Oregon HARP Approved Contractor - Approved for the Oregon Homeowner Assistance and Reconstruction Program (wildfire disaster recovery). Listed on the official HARP contractor list →

Trust Score for MASON Williamson Oberman - 79/100 Good

79
/ 100
Good CCB Lookup Trust Score

MASON Williamson Oberman meets Oregon CCB requirements. Verify bond and insurance expiration dates before hiring.

✓ Licensed ✓ Bonded ✓ Insured
Positive factors
  • Active CCB license +40 pts
  • 6–10 years active (7 yrs) +9 pts
  • Surety bond current +8 pts
  • Bond above legal minimum +4 pts
  • Liability insurance current +8 pts
  • Insurance above legal minimum +5 pts
  • Responsible Managing Individual identified +3 pts
  • Phone number on record +2 pts
Score calculated from Oregon CCB license data and Google Business Profile. How is this score calculated? →

Residential General Contractor in Portland, Oregon Since 2018

MASON Williamson Oberman is a licensed residential general contractor based in Portland, Multnomah County. The business has operated since 2018 and serves homeowners undertaking residential construction and remodeling projects.

Services:

  • Residential general contracting
  • New home construction
  • Remodeling and renovations
  • Residential project management

The contractor serves the Portland and Multnomah County area and maintains active CCB standing.

CCB #223127 - licensed, bonded and insured under Oregon law with a $25,000 surety bond and $1,000,000 liability insurance.

Oregon CCB License #223127 - MASON Williamson Oberman

Oregon CCB license #223127 is currently Active - registered since October 2018 and valid through February 18, 2028.

CCB License Number
#223127
License Status
Active
License Type
RGC Residential General Contractors
First Registered
October 22, 2018
License Expires
February 18, 2028
Responsible Managing Individual
Mason Williamson Oberman

Contact & Address

Address
22010 Nw Beck Rd
Portland, OR 97231
Workers' Comp Exempt. This contractor is not required to carry Workers' Compensation Insurance. If you or someone working on your behalf is injured on the job, you may not be covered. Verify arrangements before hiring.

Bond & Insurance

The bond and insurance protect you in different situations - learn what each one covers →

Surety Bond

$25K
WESTERN SURETY COMPANY
Expires: February 18, 2028
One of 100+ surety companies active in Oregon's CCB database - bond market study →

Liability Insurance

$1M
CBIC
Expires: March 17, 2027
CBIC covers 12.6% of Oregon CCB contractors - insurer profile →
Before hiring MASON Williamson Oberman: Request a Certificate of Insurance (COI) confirming the general liability insurance is active, lists MASON Williamson Oberman as the named insured, and that coverage dates extend through your planned project dates. Verify the surety bond is also current - both protect you against different risks. For complaint history and disciplinary records, visit search.ccb.state.or.us →

Before You Hire

  • Confirm the license is Active and hasn't expired.
  • Check that bond and insurance are current - dates are listed above. Bond and insurance cover different risks →
  • Confirm the RMI (Responsible Managing Individual) will be on-site.
  • Always get a written contract referencing CCB license #223127.
  • Cross-verify with the official CCB database - data here may have a delay.
  • CCB Lookup does not include complaint or disciplinary history. For complaint records, check the official CCB search →
Full Verification Guide

Protect your home improvement project

Surety bond protection

Oregon's surety bond covers incomplete or defective work up to the bond limit. File a claim with the Oregon CCB within 2 years of project completion. How to file a bond claim →

General liability insurance

General liability covers property damage and bodily injury during the project. Ask for a COI (Certificate of Insurance) listing your address as an additional insured location.

Written contract required

Oregon law requires a written contract for residential projects over $2,000. It must include the CCB number, scope of work, and payment schedule. Contract requirements →

Workers' compensation coverage

Contractors with employees in Oregon are required to carry workers' compensation insurance. If a worker is injured on your property without coverage, you may bear liability. Verify coverage status before work begins.

Homeowners typically compare multiple licensed contractors before starting a project.

Before you hire

Verify this contractor carries active general liability insurance and a current surety bond. Request a Certificate of Insurance (COI) listing your property before any work begins. Oregon contractors must maintain minimum coverage - an Active license does not guarantee current insurance.

Compare contractor quotes

Before hiring, get 2–3 written estimates from licensed Oregon contractors. Compare Residential General Contractorss in Portland to ensure competitive pricing.

Find Residential General Contractors nearby

Verify on CCB.oregon.gov

Always confirm directly with the Oregon CCB before signing a contract. Official data is updated in real time.

Official CCB Record

Quick Summary

  • Status Active
  • License # #223127
  • Type RGC
  • County Multnomah
  • RMI Mason Williamson Oberman
  • Bond $25K
  • Insurance $1M
  • Lic. expires February 18, 2028
  • Bond expires February 18, 2028
  • Ins. expires March 17, 2027
  • Last updated May 20, 2026
  • Synced May 20, 2026

Last updated = last detected change in CCB records. Synced = last fetch from the Oregon CCB Open Data Portal. Data may lag up to 24h.

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Are you MASON Williamson Oberman?

If any information on this profile is incorrect, here's how to fix it: CCB data (license status, bond, insurance, address) - update it directly with the Oregon CCB and CCB Lookup will sync it automatically within 24 hours. Description or other details - contact us and we'll review it within 5 business days.

Record first imported: February 23, 2026  ·  Last data change detected: May 20, 2026  ·  Synced with CCB Open Data: May 20, 2026. Always verify at CCB.oregon.gov before hiring.