Mason & Associates
(208) 454-0256
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Contact Us

Mason & Associates is proud to be a respected and reliable civil engineer services and land surveying company in Idaho. Based in Nampa, ID, we’re pleased to serve the Treasure Valley area of southwest Idaho and southeast Oregon, as well as clients throughout both states. As a licensed firm in both Idaho and Oregon, we are committed to working collaboratively with our clients to ensure all projects are mutually successful, completed on time and achieved within an agreed-upon budget. Call Mason & Associates today at 208-454-0256 or fill out the form below to learn more about our land planning and civil engineering services.

William Mason - Civil Engineer
Darin Holzhey - Professional Land Surveyor






    Location

    Mason & Associates
    924 3rd St S Ste B
    Nampa, ID 83651
    Phone: (208) 454-0256

    Business Hours

    Monday:8 AM – 5 PM
    Tuesday:8 AM – 5 PM
    Wednesday:8 AM – 5 PM
    Thursday:8 AM – 5 PM
    Friday:Closed
    Saturday:Closed
    Sunday:Closed

    Service Areas

    Canyon County, ID
    Ada County, ID
    Owyhee County, ID
    Gem County, ID
    Payette County, ID
    Boise County, ID
    Twin Falls County, ID
    Boise, ID
    Meridian, ID
    Nampa, ID
    Kuna, ID
    Caldwell, ID
    Ontario, OR
    Twin Falls, ID
    Mountain Home, ID
    Baker City, OR
    Middleton, ID
    Star, ID
    Eagle, ID
    Marsing, ID
    Homedale, ID
    Fruitland, ID
    Weiser, ID
    Payette, ID
    McCall, ID

    Map of Nampa

    map

    Our Services Include:
    • Civil Engineering
    • Land Surveying
    • Land Planning
    • Municipal Agency Reviews
    • Residential Land Surveying
    • Commercial Land Surveying
    © 2025 Mason & Associates | Terms and Conditions