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

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Last update on October 18, 2025

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Land Surveying questions, answered by experts

This is fairly rare, but sometimes the local government or a group like a historical society will label a tree as a landmark, or historical item. These designations almost always come with a small, on-site plaque for identification, but you should also be able to look up protected trees in your area on a city website or similar list. If the tree in question is a landmark, call your local government and ask how to proceed before making any plans.

A professional land surveyor ensures accurate property boundaries and prevent legal disputes.

Land surveys don’t technically expire. They do serve as a point of reference and a snapshot of your property, though, so as soon as you make changes to your property (and even if your neighbor makes certain changes to theirs), your existing land survey becomes inaccurate, and a new one must be done. Even if you don’t make any changes to your property, many states only guarantee the accuracy of a land survey for five to ten years.

To prepare for a land survey, you must thoroughly check your land surveyor’s qualifications, reviews, and fees to align with your expectations. When it is time for the survey to be conducted, ensure that you have all your documents organized and available, know and mark your property lines, and inform your neighbors that the survey is happening.

Soil testers and licensed excavators are often the professionals you hire if you need a perc test. In some cases, structural engineers will also be able to conduct the test for you. In many municipalities, you’ll need your professional on-site to dig and fill the holes with water, as well as a representative from your local building department or health department. That representative is the individual who will determine whether your test passes or fails.

The Keene, NH 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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