COLUMBIA GROUNDWORK INC
Directory information score: 6/100
Profile updated October 2, 2026
Washington State Labor & Industries’ contractor license dataset lists COLUMBIA GROUNDWORK INC as a construction contractor with the general-contractor specialty. As observed on 2026-10-02, the dataset listed COLUMGI828N1 (ACTIVE, expires 09/28/2028). Its listed mailing address is PO BOX 1855, CASTLE ROCK, WA 98611, and its listed business phone is 9074415679. L&I describes these as contractor-reported records; the mailing address and phone have not been independently confirmed.
Directory information score for COLUMBIA GROUNDWORK INC
Fixed points summarize recorded information, not service quality. Missing data adds no points and may explain a lower score. Listed credentials and press mentions are not independently verified by this score.
- Public rating
- N/A/5 → 0 / 35 points
- Review Volume
- 0 reviews → 0 / 20 points
- Listed credentials
- None listed → 0 / 5 points
- Listed press mentions
- 0 mentions → 0 / 3 points
- Web Presence
- 0 / 20 points
- Recorded history
- N/A → 0 / 2 points
- Profile information
- 6 / 15 points
Key facts
- Based in
- CASTLE ROCK, WA
- Address
- PO BOX 1855
- Phone
- 9074415679
- Budget tier
- Contact firm
- Licensed in
- WA
Frequently asked questions
- What services does COLUMBIA GROUNDWORK INC offer?
- COLUMBIA GROUNDWORK INC's specific services are not yet catalogued in our directory. Contact the firm directly for their current service offerings.
- What is COLUMBIA GROUNDWORK INC's typical project cost?
- Cost information for COLUMBIA GROUNDWORK INC is not published in our directory. Contact the firm directly at 9074415679 for a project-specific quote.
- Where is COLUMBIA GROUNDWORK INC located and what areas do they serve?
- COLUMBIA GROUNDWORK INC is based in CASTLE ROCK, WA and lists licensing in WA. Confirm current standing with the relevant regulator.
- How do I hire COLUMBIA GROUNDWORK INC?
- To hire COLUMBIA GROUNDWORK INC: call 9074415679. Most contractors ask about scope, timeline, and budget range before scheduling an estimate.