CA License #1098841 | DIR Registered | Bonded & InsuredCall Amy: (530) 416-1583

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Full coverage map coming soon.

Owner-operated Class A General Engineering Contractor. Amy Stringham brings 30+ years of hands-on experience to excavation, grading, roads, drainage, and property improvements throughout El Dorado County and the Lake Tahoe region.

(530) 416-1583 [email protected]Coloma, California

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Services

Excavation & Grading
Site Development
Land Clearing & Tree Removal
Underground Utilities
Roads & Driveways
Demolition
Drainage Systems
Septic Excavation
Snow Removal
Emergency Storm Cleanup

Service Areas

El Dorado County
Placer County
Nevada County
Alpine County
Amador County
Lake Tahoe Region
Sierra Nevada Foothills

Credentials

CA License #1098841
DIR Registered
Bonded & Insured
Prevailing Wage Compliant
Owner-Operated
Est. 2022

© 2026 Proper General Engineering Inc. All rights reserved.

CA License #1098841 · Owner-Operated · El Dorado County, CA

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