Serving Maine, New Hampshire, Massachusetts, Connecticut, Rhode Island, & Vermont

Welcome to R. W. Gillespie & Associates, Inc.

Our Mission

Since 1986, we’ve been committed to improving the quality of life in our communities through reliable, sustainable and resilient infrastructure. We help our clients complete projects of higher quality, better value and less risk with our services in geotechnical engineering, construction materials testing and inspections, and environmental consulting. We help our clients identify and manage their project’s uncertainties and reduce the potential for delays, defects and unanticipated costs.

Envision your construction

Envision your construction project with higher quality, better value, and less risk.

We can help reduce the potential for defects, delays, and unexpected costs whether you are an owner, contractor, or design professional.

Geotechnical Engineering Services

  • Foundation Investigations
  • Embankment & Preload Analyses
  • Slope Stability / Landslides Evaluations
  • Rock Anchor Design Criteria & Testing
  • Selection of Deep Foundations
  • Geothermal Wells
  • Well & Borehole Video Surveys
  • Site Selection Assistance
  • Gravel and Quarry Pits
  • Infiltration Testing

Environmental Consulting

  • Environmental Site Assessments
  • Remediation Action Plans
  • Transaction Screens
  • Subsurface Wastewater Disposal
  • Irrigation & Groundwater Supply
  • Groundwater Monitoring

Construction Materials Testing

  • Precast Inspection Level I & II
  • Construction Observation
  • Laboratory Testing Services
  • Soils, Concrete, Masonry & Asphalt Testing
  • Wind Energy Construction Services

Special Inspection Services

  • Nondestructive Testing
  • Floor Friction Testing
  • Steel & Masonry Inspection
  • Weld Inspections
  • Fireproofing & Insulation Inspection