Survey in progress

Testimonial ........................

" The team at TDH Surveying & Design are the BEST in the business. Choosing TDH Surveying & Design to assist me with my land subdivision was the key ingredient to the success of my project. This company provides a knowledgeable, and very professional service at an affordable price. I will not hesitate to use TDH Service & Design in the future and I will highly recommend this team of professionals to anyone."

Larry LaRocque




TDH Surveying & Design, LLC

TDH has over 40 years combined experience in the fields of land surveying & water/wastewater system designs. All three partners also have a strong background& knowledge of civil engineering practices. TDH proudly serves clients throughout Vermont and New Hampshire.

Our goal is to provide a high quality of professional service at an affordable price.  The method employed to reach this goal is HARD WORK, LOW OVERHEAD, and SKILLED WORKERS without the layers of management within a larger firm.

What we deliver to our clients

Land Surveying

  • Residential & Commercial Boundary Surveys
  • Right of Way Surveys
  • Topographical Surveys
  • Construction Layout
  • ALTA/ALSM Surveys
  • As Built Surveys
  • FEMA Floorplan Surveys
    • Elevation Certificates
    • LOMA (Letter of Map Amendment)
    • LOM-R (Letter of Map Revision)
  • Expert Witness Testimony

Water/Wastewater System Designs

  • Test Pits / Percolation Tests
  • Sanitary System Designs for new construction or
    the replacement of a failed septic system.
  • State Permitting

Wetland Delineation & Permitting

  • Field Deliniation of Wetland Boundries
  • Conditional Wetlands or Wetland Buffers


  • Land Use Planning
  • Site Analysis
    • Residential Development
    • Subdivisions
    • Multi-Family
    • Condominiums
    • Planned Unit Developments (PUD,PRD)
  • Commercial Developments
    State & Local Permits & Applications


To contact us:
Phone: 802-524-4460
Fax: 802-370-3101
PO Box 8
St. Albans, VT 05478