COMBS TESTING SERVICE

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

Washington State Labor & Industries’ contractor license dataset lists COMBS TESTING SERVICE as a construction contractor with the general-contractor specialty. As observed on 2026-10-02, the dataset listed COMBSTS832JD (ACTIVE, expires 04/04/2027). Its listed mailing address is 23711 Dorre Don Wy SE, MAPLE VALLEY, WA 98038, and its listed business phone is 4257364936. L&I describes these as contractor-reported records; the mailing address and phone have not been independently confirmed.

Directory information score for COMBS TESTING SERVICE

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
MAPLE VALLEY, WA
Address
23711 Dorre Don Wy SE
Phone
4257364936
Budget tier
Contact firm
Licensed in
WA

Frequently asked questions

What services does COMBS TESTING SERVICE offer?
COMBS TESTING SERVICE's specific services are not yet catalogued in our directory. Contact the firm directly for their current service offerings.
What is COMBS TESTING SERVICE's typical project cost?
Cost information for COMBS TESTING SERVICE is not published in our directory. Contact the firm directly at 4257364936 for a project-specific quote.
Where is COMBS TESTING SERVICE located and what areas do they serve?
COMBS TESTING SERVICE is based in MAPLE VALLEY, WA and lists licensing in WA. Confirm current standing with the relevant regulator.
How do I hire COMBS TESTING SERVICE?
To hire COMBS TESTING SERVICE: call 4257364936. Most contractors ask about scope, timeline, and budget range before scheduling an estimate.

Related contractors in MAPLE VALLEY

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 23711 Dorre Don Wy SE, MAPLE VALLEY, WA 98038, and the business phone as 4257364936 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 COMBS TESTING SERVICE with the GENERAL general-contractor specialty registration(s): COMBSTS832JD (ACTIVE, expires 04/04/2027).

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