Business Details
Expert Land Surveying Services in Gig Harbor, WA
Thornton Land Surveying has built a reputation for excellence in land surveying services since its founding. With over four decades of experience, our team of licensed professionals combines advanced technology like 3D laser scanning with traditional expertise to deliver precise, client-focused solutions. We specialize in boundary surveys, topographic mapping, aquatic land assessments, and construction layout services, serving government agencies, private developers, and homeowners across Washington State. Our commitment to accuracy, efficiency, and client collaboration ensures projects are completed on schedule and within budget. Led by Gary and David Proctor, both Professional Land Surveyors with extensive industry experience, we prioritize transparency, technical innovation, and adherence to the highest professional standards. Our investment in state-of-the-art equipment, including robotic total stations and GPS systems, enables us to tackle complex projects while maintaining cost-effectiveness for our clients. By fostering long-term relationships with clients and regulatory agencies, we streamline processes for boundary adjustments, land subdivisions, and compliance documentation. Our dedication to quality is reflected in thousands of successfully completed projects, ranging from small residential surveys to large-scale infrastructure developments. We maintain offices in Gig Harbor and Port Orchard, ensuring localized service with statewide capabilities. At Thornton Land Surveying, we believe that technical excellence must be paired with clear communication and proactive problem-solving to truly serve our clients' needs.
Services
Land Surveying
Boundary Surveys
Topographic Mapping
3D Laser Scanning
Aquatic Services
FEMA Certificates
Construction Layout
Boundary Adjustments
Land Subdivisions
Elevation Surveys
Highlights and features
- We offer 40+ years of combined experience in land surveying across Washington State
- Our team includes licensed PLS and CFedS professionals with specialized federal surveying credentials
- We utilize state-of-the-art 3D laser scanning and GPS technology for superior accuracy
- We provide tailored solutions for both complex commercial projects and residential needs
- Our principals have direct family legacy in the surveying profession spanning multiple generations
Associations and certifications
- Professional Land Surveyor (PLS)
- Certified Federal Surveyor (CFedS)
Services
Construction Services
Our construction layout services combine technical precision with practical understanding of site development challenges. We provide accurate surveying for building grids, storm basins, and infrastructure projects while balancing efficiency with measurement accuracy. Our team uses robotic total stations and GPS systems to establish control points that minimize errors and reduce rework. Clients benefit from our experience in coordinating with contractors to maintain project timelines and budgets.
Boundary Line Adjustment
We specialize in adjusting property boundaries between adjacent landowners while complying with local jurisdiction requirements. Our process includes title research, physical evidence analysis, and preparation of legal documentation to formalize boundary changes. We guide clients through municipal approval processes and recommend legal consultation when property transfers or lender involvement exists, ensuring all adjustments meet regulatory standards.
Aquatic Services
Our aquatic land surveying covers tidelands, shorelines, and navigable waterbeds requiring specialized expertise. We conduct bathymetric soundings, buoy location surveys, and tideland lease assessments that meet Washington State Department of Natural Resources requirements. Our services support aquaculture leases, shoreline development permits, and boundary determinations for waterfront properties.
3D Laser Scanning
We employ high-definition 3D laser scanning to capture precise spatial data for complex environments. This technology enables creation of detailed point cloud models for as-built documentation, structural analysis, and construction planning. With scanning accuracy to the millimeter level, we support projects requiring precise measurements of buildings, infrastructure, and terrain where traditional methods would be impractical or unsafe.
FEMA Elevation Certificate
We prepare FEMA Elevation Certificates for flood insurance requirements and building permits. Our licensed surveyors establish benchmarks and measure critical elevation points on structures to determine flood risk. This documentation helps property owners qualify for accurate insurance rates and can support applications for Letter of Map Amendment to potentially remove properties from flood zones.
People
Gary A. Proctor
Owner & President
Gary Proctor, a retired Marine Corps Lieutenant Colonel and Professional Land Surveyor, brings over 20 years of boundary resolution expertise. He learned surveying fundamentals from his father and has expanded the company's capabilities in federal land projects and 3D scanning technology.
David S. Proctor
Owner & Vice President
David Proctor, a Marine Corps veteran and Certified Federal Surveyor, specializes in aquatic land surveys and tribal trust documentation. With 20+ years of experience, he applies advanced GPS techniques to complex boundary disputes and federal land transfers while maintaining state licensing standards.
Don Wilson
Crew Chief
Don Wilson, a U.S. Army veteran with surveying training from military service, serves as our lead field technician. With over a decade of experience, he oversees daily survey operations and ensures field data collection meets the company's precision requirements for construction and boundary projects.
Questions
What types of land surveying services do you offer?
We provide boundary surveys, topographic mapping, 3D laser scanning, aquatic land assessments, FEMA elevation certificates, construction layout, and land subdivision services across Washington State.
How does 3D laser scanning benefit survey projects?
3D laser scanning captures 50,000 data points per second with millimeter accuracy, creating detailed models of complex environments. This technology improves measurement precision while reducing field time and safety risks compared to traditional methods.
Do you handle both residential and commercial projects?
Yes, we serve homeowners needing boundary clarification and developers working on large-scale infrastructure projects, with experience in both private and public sector requirements.
What information is needed for a boundary line adjustment?
We require property deeds, existing surveys, and jurisdiction-specific forms. Our team guides clients through local approval processes and recommends legal consultation when property transfers are involved.
How quickly can I get a free quote?
Submit our online form and receive a detailed quote within 1-2 business days, with project timelines and cost estimates tailored to your specific surveying needs.
Reviews (3)
Mitchell Gasser
Mar 14, 2022
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Thornton Land Surveying is a great company, with a knowledgeable and hard working staff. They are always responsive and pleasant to work with. I would highly recommend them to anyone looking to perform laser scanning, standard boundary surveys, aquatic services, boundary line adjustments, FEMA elevations certificates, forensic boundary surveys, Indian trust and Tribal land surveys, BIM and 3d scanning and modeling, land segregation and subdivision, construction services, and topographic mapping.
Robert Hunden
Jan 13, 2021
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Thorton Land Surveying (specifically Gary and Vicky) have done a bunch of work for us over the years on various parcels. A difficult boundary line on our old home, wetland and easements on our new home. They have been quick to respond, very helpful, and their work was top notch. I'll use this company again for future surveying needs for sure.
Robert Hunden
Jul 25, 2020
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Thorton Land Surveying (specifically Gary and Vicky) have done a bunch of work for us over the years on various parcels. A difficult boundary line on our old home, wetland and easements on our new home. They have been quick to respond, very helpful, and their work was top notch. I'll use this company again for future surveying needs for sure.