About Us 

Approach and Methodology 

Surveying and Mapping Capabilities 

Staff Qualifications 

Project References 

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2018 Best of Woodinville Award

Duane Hartman & Associates, Inc., Surveyors  Land, Woodinville, WA


Now Hiring!Duane Hartman and Associates, Inc.

Duane Hartman & Associates, Inc., (DHA) , a Woman-Owned Small Business, delivers Land Surveying and Mapping services to private and public clientele throughout Washington State and the Pacific Northwest.  Founded (since 1993) by Duane Hartman, the firm provides:

  • Land Surveying       
  • Topographic Mapping
  • Right of Way Acquisition Support               
  • Environmental Surveying
  • Waterway (Bathymetric) Surveying
  • Geodetic Control Densification
  • Wetlands Delineation Mapping
  • Alignment Condition and Settlement Surveys
  • Construction Staking and Surveillance
  • Database Management Services

Directed by Doug Hartman, a registered professional land surveyor, the firm's staff practices pride in excellence and cost efficient services for clients throughout the greater King, Pierce and Snohomish County regions.  DHA has an excellent reputation for being a team player with government and private clientele in need of surveying and mapping services. 

DHA’s field staff maintains continuing education and certification for traffic control.  Safety is a first priority for the field operations. All of DHA’s employees carry certification cards for traffic flagger, railroad (E-Rail certified), safety and WSDOT’s requirements for work within the State’s right of ways.  The firm has an excellent reputation for product quality, schedule compliance and budget limitations.

DHA’s survey crews are equipped with current GPS systems, electronic bar code precise levels, robotic total stations with reflectorless capabilities and full compliment of WSDOT’s traffic control devices in DHA’s fleet of four (4) well-maintained survey vans.  Survey crew members carry roadway and railroad flagger safety certifications.  All DHA technicians have undergone criminal background screening and are continually trained and updated on modern surveying techniques.  Our field techs operate and travel in company vehicles with DHA Surveying logos and phone numbers prominently displayed for public awareness.

DHA provides our clients with advanced 3D laser scanning services with an emphasis on the highest standard in quality of project data and deliverables.  3D scanning provides fast, accurate measurement of the as-built condition of your physical part, and can be used for any object or environment.  With 3D scanning, DHA is able to access information previously locked in an inaccessible physical form and inject it into your existing CAD based process.

A DHA crew is always available within 24 hours or less to meet client needs.


Professionally Licensed and Registered in Washington

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Providing surveying and mapping services to private and public clientele throughout Washington State and the Pacific Northwest