Business Details
32 Years
experience
Professional Land Surveying Services in Upper Marlboro, MD
Since 1994, Duley & Associates has been a trusted leader in professional land surveying. With over 30 years of experience, we have completed more than 230,000 surveys, serving residential and commercial clients across Maryland and Washington D.C. Our team of licensed, registered professionals combines decades of expertise with cutting-edge technology to deliver accurate, legally sound results. We prioritize quality without compromising speed, offering rapid turnaround times for urgent real estate needs while maintaining rigorous industry standards. Our commitment to client satisfaction is evident in our customer-focused approach, transparent communication, and proven track record of resolving complex boundary issues. As a locally owned business with deep roots in the community, we understand the unique challenges of the regional real estate market and provide tailored solutions that meet both individual and institutional needs.Our seasoned professionals bring specialized knowledge to every project, whether it involves boundary disputes, ALTA/ACSM surveys, or flood elevation certification. By maintaining consistent, high-quality output and ethical business practices, we have built lasting relationships with clients who repeatedly rely on our expertise. Our office manager and technical staff contribute over 75 combined years of institutional knowledge, ensuring continuity and reliability in every service we provide. This dedication to excellence has made us a preferred choice for real estate professionals, attorneys, and homeowners seeking accurate, legally defensible surveying services.
Services
Boundary Surveys
FEMA Elevation Certificates
ALTA Surveys
Site Plan Surveys
Location Drawings
Details
- Year established: 1994
Highlights and features
- Licensed and registered professionals with Maryland and D.C. certifications
- 30+ years of combined experience resolving complex boundary issues
- Proven track record with 230,000+ completed surveys
- Rapid turnaround times without compromising accuracy
- Owner-led operations maintaining quality control since 1994
What people say
Prompt and professional
Very thorough results
Accurate boundary identification
Timely completion
Clear explanations
Services
Boundary Surveys
Our boundary surveys precisely establish property lines through comprehensive research and fieldwork. This service includes locating existing markers, resolving encroachment issues, and preparing legal documentation. Ideal for property owners facing disputes or preparing for development.
ALTA Surveys
These comprehensive surveys meet the strict standards of the American Land Title Association. They include boundary verification, easement identification, and topographical features. Required for most commercial real estate transactions and title insurance.
FEMA Elevation Certificates
We provide official documentation verifying building elevations relative to flood risk zones. This survey component determines flood insurance requirements and supports floodplain management compliance for residential and commercial properties.
Site Plan Surveys
Our detailed site plans meet permitting requirements for additions, decks, and other structures. Surveys include existing features, setbacks, and proposed improvements to satisfy local jurisdictional requirements for construction approvals.
Location Drawings
These basic surveys identify home placement relative to property boundaries. Often required by title companies and lenders during real estate transactions to identify potential encumbrances affecting property value.
People
Andy Duley
Owner / Founder
With 37+ years of experience, Andy established Duley & Associates in 1994. He oversees all operations, ensuring quality control and maintaining the company's commitment to accurate, timely surveying services.
Jerry Mamauag
Licensed Surveyor
Licensed in Maryland and Washington D.C., Jerry has 22 years of surveying expertise. He has been with Duley & Associates for 12 years, specializing in boundary resolution and commercial property surveys.
Chris Wyvill
Licensed Surveyor
With 34 years of experience, Chris provides expert surveying services in Maryland. He joined Duley & Associates 8 years ago, bringing extensive knowledge of residential boundary disputes and title surveys.
Chevas Huffman
Office Manager
Chevas has managed office operations for over 23 years, handling client communications and coordinating field services. Her institutional knowledge ensures smooth project execution from request to delivery.
Chris Parsons
Head Draftsman
As lead draftsman and field coordinator, Chris has produced survey documentation for 18 years. He ensures technical drawings meet both client needs and regulatory requirements across all project types.
Questions
Why should I choose a licensed surveyor?
Licensed surveyors ensure legal compliance and accuracy. They follow strict standards, carry required insurance, and provide legally defensible documents that protect your property investment.
Do I need a survey for a simple property transaction?
While not always mandatory, a survey reveals boundary issues that title insurance may not cover. Our location drawings help identify potential encroachments affecting property value.
What areas do you survey?
We serve all Maryland counties and Washington D.C. Our experience includes urban properties, rural land, and complex commercial developments across our service area.
How quickly can you complete a survey?
We typically complete surveys in 1-2 days when permitted by workload. Urgent requests receive special attention while maintaining our quality standards.
What causes survey cost differences?
Licensed professionals follow strict procedures that ensure accuracy. Lower prices often mean unlicensed work, skipped research, or inexperienced crews that risk costly errors in boundary determination.
Can mobile apps replace professional surveys?
Apps provide approximate locations but can be hundreds of feet inaccurate. Only licensed surveyors provide legally recognized boundary determinations meeting state and local requirements.
Videos
Reviews (5)
N. Barr
Jun 14, 2022
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Chris and his team were excellent! We placed a call, asked for a survey, paid a reasonable price, the team conducted the survey shortly thereafter and had the electronic survey to us the next day. Really seamless and easy to work with. Grateful!
Brad Gregory
Jun 13, 2022
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Everything from the initial phone call through the delivered product was excellent. The people were all very pleasant to deal with. The finished product was beautiful. I requested that they put an additional number on the survey plot and they were happy to do that. I was very happy that they delivered a PDF file, in addition to the paper copies. Without hesitation, I would recommend this company wholeheartedly to anyone that needed a survey done.
Robin Fitzhugh
May 16, 2022
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I was referred to Duley and Associates by a realtor friend, Rebecca Mohammed of Keller Williams Integrity. I spoke to Andy Duley to get a survey done. He provided me with all information and cost then proceeded to tell me to check the documents that I got when I bought my home. Normally there is a survey that comes with the documents. Sure enough, there it was. He could have kept that info to himself and just made money off of me that I did not need to spend. That is integrity and is TOPS in my book. These days that is rare! Thank you! I am already advertising for you!
Angela Bubblez Hilliard
Apr 27, 2022
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**Property Plat** Exceptional customer service.answered all questions regarding the product I needed to perform work on my property; Quick turnaround.received the drawing within 24 hours and was able to email it to the contractor. Would definitely use them again in the future!
Name Unlisted
Apr 07, 2022
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I highly recommend Duley & Associates! They were very professional and and prompt, not only in executing the survey but providing the drawing the next day as promised. Thank you so much for your help!
