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*The Angi rating for Land Surveying companies in Oblong, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Land Surveying needs.

*The HomeAdvisor rating for Land Surveying companies in Oblong, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Land Surveying needs.

Last update on November 16, 2025

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Land Surveying questions, answered by experts

Surveys completed by licensed surveyors can be recorded with a local surveying records office, and in most cases, they will be. Filing survey reports categorize them as legal documents, and they can be used whenever legal documentation of your property’s boundaries is needed. While you’re not required to file survey documents, it’s a good idea to do so. 

Professionals who complete perc tests can usually do them in a single day. Including excavating to expose the test site, filling the hole with water, and monitoring it while it drains, you can expect the test to take between four and eight hours total. It’s possible that you’ll get the results the same day, but some companies may take a few days to get official results.

Costs vary, but you can expect to spend between $1,000 and $4,000 to prepare land for a mobile home or before you build a house. You’ll need to clear enough land for the foundation, which may require leveling or grading, as well as removing trees, stumps, and plants. Don’t forget to plan for permits and fees and the installation of a gas line, water line, and sewer main.

If you’re planning to dig on your property, you’ll need to check for underground utility lines. Call the national call-before-you-dig 811 number. Once connected to an operator, you can schedule a site visit to mark underground lines. This way, you won’t accidentally dig into pipes and can cause major (read: costly) issues.

Professional well contractors may use electromagnetic mapping to look for places with a high likelihood of water. Water access can vary significantly, even on the same property, so it can be difficult to know where to drill if you don’t have specialized tools to look for water.

The Oblong, IL homeowners’ guide to land surveying services

From average costs to expert advice, get all the answers you need to get your job done.

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