License tenure
24 yrs
IL Landscaping avg: 16 yrs
Bond
Not published by the state
Not published by the state
Trust score
20
Based on license status, bond, and profile signals
About this business
DUANE A DIETZ is a licensed Landscaping contractor based in VASHON, Illinois, serving customers in VASHON, WASHINGTON County (98070) and nearby Illinois communities.
Read more
DUANE A DIETZ delivers grading, planting, irrigation, hardscape, and seasonal cleanup for residential yards in VASHON. Outdoor scopes include patio prep, retaining walls, drainage swales, and lawn renovation. State classification on file: LANDSCAPE ARCHITECT.
Illinois IDFPR licenses regulated construction and home improvement trades at the state level.
IL unknown license 157001087 with records dating to 2002 (24 years on file). Current expiration: 2007-08-31. Source agency: Illinois IDFPR.
Confirm the license classification covers every trade on your project.
Market insights
More established than typical Landscaping pros in IL.
How this pro compares
License tenure vs state average
DUANE A DIETZ's license is 7.7 years above average for Landscaping contractors in IL.
License journey
- License issuedSeptember 9, 2002
24 yrs of operating history on record
- License verifiedMay 31, 2026
License checked 22 days ago
- License expirationAugust 31, 2007
Expiration date has passed — confirm renewal with state board
License details
License #157001087
Statusunknown
IssuedSeptember 9, 2002
ExpiresAugust 31, 2007
BondNot published by the state
CountyWASHINGTON
StateIL
Last verifiedMay 31, 2026
License verified with Illinois IDFPR · last checked May 31, 2026. Confirm status with the state board before hiring.
Before you hire checklist
Work through these steps before signing — checking items helps you compare contractors with confidence.
Claim this profile
Are you DUANE A DIETZ? Add proprietary content so this page becomes authoritative — not just a public record stub.