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*The Angi rating for Land Surveying companies in Alstead, NH 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 Alstead, NH 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 11, 2025

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Land Surveying questions, answered by experts

A few different types of land surveys can help determine certain features and boundaries of your property. These include:

  • Boundary surveys describe the actual borders of a property. These are generally required when trying to get construction permits issued. 

  • Location surveys provide much of the same information as a boundary survey but also include in-depth information about any improvements made to your property. 

  • Mortgage location surveys are usually required by lenders and title companies before financing or offering an insurance policy. 

  • Site-planning surveys are done before applying for building permits and can be issued before any major home improvements. 

  • Topographic surveys provide a formal map of land elevations. It can also describe the location and size of natural features and any land improvements.

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.

A land survey can take anywhere from a few hours to a month or more, depending on the size of the property, the type of survey, the property’s accessibility and topography, and the availability of historical property records. A simple boundary survey to determine a fence line can be completed in a day while surveying 50 acres of undeveloped woodlands may take weeks or longer.

If a buyer pays for a survey, the surveyor they hired will only provide results to them. It’s up to the buyer whether they share the survey results with the seller or not, even if they ultimately walk away from the deal. It’s considered good faith to share the results with the seller, though, especially if you back out of the deal, as the seller can then provide that survey to future interested parties.

You can’t build on undeveloped land without preparing it for construction, which involves running utilities to the site or accounting for private utilities like wells and septic systems and grading and compacting the soil for safe construction. Once you prepare the land, you can build on it as long as the project abides by local zoning regulations.

The Alstead, 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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