License tenure
34 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
DOUGLAS M JOHNSTON PHD specializes in Landscaping work in AMES, IOWA County (50014) and nearby Illinois communities under a IL contractor license.
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Landscape work in AMES may require coordination with utility locates and HOA guidelines. State classification on file: LANDSCAPE ARCHITECT.
Chicago and collar-county permit rules can differ from downstate — confirm local requirements in AMES.
IL unknown license 157000554 with records dating to 1992 (34 years on file). Current expiration: 2009-08-31. 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
DOUGLAS M JOHNSTON PHD's license is 17.4 years above average for Landscaping contractors in IL.
License journey
- License issuedDecember 15, 1992
34 yrs of operating history on record
- License verifiedMay 31, 2026
License checked 21 days ago
- License expirationAugust 31, 2009
Expiration date has passed — confirm renewal with state board
License details
License #157000554
Statusunknown
IssuedDecember 15, 1992
ExpiresAugust 31, 2009
BondNot published by the state
CountyIOWA
StateIL
Last verifiedMay 31, 2026
License verified with Illinois IDFPR · last checked May 31, 2026. Confirm status with the state board before hiring.
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