THORNBERG CONSTRUCTION CO INC

Directory information score: 6/100
Profile updated October 2, 2026

Washington State Labor & Industries’ contractor license dataset lists THORNBERG CONSTRUCTION CO INC as a construction contractor with the general-contractor specialty. As observed on 2026-10-02, the dataset listed THORNCC055CS (ACTIVE, expires 03/04/2027). Its listed mailing address is 4809 242ND AVE SE, Sammamish, WA 98029, and its listed business phone is 4253916766. L&I describes these as contractor-reported records; the mailing address and phone have not been independently confirmed.

Directory information score for THORNBERG CONSTRUCTION CO 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
Sammamish, WA
Address
4809 242ND AVE SE
Phone
4253916766
Budget tier
Contact firm
Licensed in
WA

Frequently asked questions

What services does THORNBERG CONSTRUCTION CO INC offer?
THORNBERG CONSTRUCTION CO INC's specific services are not yet catalogued in our directory. Contact the firm directly for their current service offerings.
What is THORNBERG CONSTRUCTION CO INC's typical project cost?
Cost information for THORNBERG CONSTRUCTION CO INC is not published in our directory. Contact the firm directly at 4253916766 for a project-specific quote.
Where is THORNBERG CONSTRUCTION CO INC located and what areas do they serve?
THORNBERG CONSTRUCTION CO INC is based in Sammamish, WA and lists licensing in WA. Confirm current standing with the relevant regulator.
How do I hire THORNBERG CONSTRUCTION CO INC?
To hire THORNBERG CONSTRUCTION CO INC: call 4253916766. Most contractors ask about scope, timeline, and budget range before scheduling an estimate.

Related contractors in Sammamish

Source: Washington State Department of Labor & Industries contractor license dataset (m8qx-ubtq), captured 2026-10-02; source dataset metadata showed a last update on 2026-09-29.. Profile updated October 2, 2026.

Sources & evidence

Published statements, observation dates and unresolved questions for this specific profile.

Mailing address and phone reported to Washington L&I

Matched to a register

L&I lists the mailing address as 4809 242ND AVE SE, Sammamish, WA 98029, and the business phone as 4253916766 for the registration record(s) listed on this profile.

These are mailing address and business phone fields in the Washington L&I contractor dataset, not an independently verified work location or confirmed working phone. The source dataset metadata showed a last update on 2026-09-29 and was captured 2026-10-02.

The contact fields come from the same official L&I registration row identified by license number; L&I’s dataset describes the address as mailing address and phone as the business phone supplied in that record.

Reviewed 2026-10-02 · Review due 2026-10-16 · Version 1

Washington L&I general-contractor registration

Matched to a register

Washington L&I’s contractor dataset lists THORNBERG CONSTRUCTION CO INC with the GENERAL general-contractor specialty registration(s): THORNCC055CS (ACTIVE, expires 03/04/2027).

The official dataset labels these contractor registrations ACTIVE as observed 2026-10-02 and reports the listed expiration dates. This is a dated registry snapshot, not a guarantee of status after that date, insurance, permits, work quality, or suitability.

The state’s public contractor dataset was downloaded on 2026-10-02; its metadata showed a last update of 2026-09-29. The source row was required to have ACTIVE status, general-contractor specialty, and an expiration date on or after 2026-10-02.

Reviewed 2026-10-02 · Review due 2026-10-16 · Version 1

Read sources, scope and review dates