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*The Angi rating for Structural Engineering companies in Marshall, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.

*The HomeAdvisor rating for Structural Engineering companies in Marshall, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Structural Engineering needs.

Last update on April 24, 2026

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Avatar for Copperhead Contracting
Copperhead Contracting
3.7(
9
)

Serving Marshall, WI and surrounding areas

In business since 2012

"We hired Copperhead Contracting to help us remodel our kitchen and bathroom along with replacing our roof. The whole team was very knowledgeable and helpful from start to finish. They provided us with a wide variety of samples and gave us all the available options to make our bathroom and kitchen work for us! They made sure to show up on time everyday there and stayed in contact with us throughout the process. We will be using Copperhead Contracting for all our future restoration needs and reccomend them to all our friends and family!"
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Structural Engineering questions, answered by experts

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

The easiest way to tell if a wall is load bearing is to check if it’s an exterior wall or if it runs perpendicular to the joists above and below it (or parallel to beams). Exterior walls are almost always load-bearing, and walls that run under beams or parallel to them are also usually load-bearing. There are exceptions to these rules, and walls that don’t fit into these categories can still be load-bearing. If you’re unsure, hire a structural engineer to look at your home to assess whether or not the wall is structural.

Yes, walls on the top floor can be load-bearing if stacked on the floor’s foundation.

No, it’s not legal for unlicensed individuals to conduct structural calculations for buildings or building repairs. Not only do licensing requirements prevent DIYers from tackling this project, but mistakes can also be extremely dangerous and put your property and anyone inside or near it at risk of severe injury or even death. You should always hire a licensed and certified local structural engineer to make structural calculations.

Most structural engineers offer free quotes, regardless of the size of the job. For simple inspections when buying or selling a home, engineers typically charge a flat fee that may be based solely on your home’s foundation type and square footage. For larger projects, like new construction and major home renovations, an engineer will either perform an analysis of your project and site and provide you with a formal estimate, or they will do a more in-depth assessment and in-person site inspection before coming up with a per-hour or per-project cost estimate. In most cases, the estimate is free.

The Marshall, WI homeowners’ guide to structural engineering services

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