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Holt Gilmour Survey Associates

Holt Gilmour Survey Associates

Your survey needs: met.

  • For Landowners
    • Boundary Surveys
    • Subdivision Surveys
    • Boundary Line Adjustment Surveys
    • Flood Elevation Surveys
    • Topographic Surveys & Site Plans
    • Condominium Surveys
    • Easement Surveys
  • For Professionals
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Derek Demas

Professional Land Surveyor

Derek has A.A.S degrees in Surveying Technology and Forestry from Paul Smith’s College and a B.S. degree in Surveying Technology from Michigan Technological University. Coupled with 18 years of surveying field and office experience working in Michigan, New Jersey, and Vermont, he has built a strong foundation as a Project Surveyor to meet the needs of clients. In addition to residential boundary and topographic surveying, he has had extensive exposure to commercial, industrial, transportation, and environmental projects, working with clients at the federal, state, and local levels. Past projects include Superfund site environmental mapping, industrial site compliance mapping for state and federal agencies, containment basin volume calculations, aerial control surveys, deformation monitoring, pre and post construction mapping, and construction layout QA/QC. He is certified OSHA: 40 Hour (HAZWOPER), 8 hr refresher, and Supervisor 29 CFR 1910.120(e)(4); T.W.I.C. U.S. Government card holder; NCEES L.S.I.T.; and holds various oil and chemical facility site-specific training as well as various utility/highway/railway contractor safety training.

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photo Derek DeMas
Holt Gilmour Survey Associates

Serving Vermont, New Hampshire, New York & the Northeast

Holt Gilmour Survey Associates
(802) 457-4649

Locations

Woodstock
PO Box 544
51 Pleasant Street
Woodstock, VT 05091
(802) 457-4649

Williston
PO Box 1261
Williston, VT 05495
(802) 457-4649 

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Copyright © 2025 Holt Gilmour Survey Associates – Website by Stride Creative Group