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

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Last update on December 16, 2025

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Avatar for Keystone Associates Architects, Engineers and Surveyors, LLC
Keystone Associates Architects, Engineers and Surveyors, LLC
New to Angi

Serving Greene, NY and surrounding areas

Credit card accepted

Offers commercial services

Keystone Associates Architects, Engineers and Surveyors, LLC (Keystone) is a multi-disciplined design firm headquartered in Binghamton, New York, with branch offices in Cortland and Monticello, New York. Keystone was established in 1993 and has provided professional design services for a region encompassing all of Upstate New York, as well as Northeastern Pennsylvania.\n

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Structural Engineering questions, answered by experts

The costs depend on the type of wood, labor, roofing material, permits, and whether additional storage or enclosed walls are included.

It's safe to assume that all exterior walls are load-bearing, or at least have load-bearing characteristics. Some older homes feature porches or bump-outs that don't rest on the home's foundation. However, they still must carry the weight of the roof section they support. Walls containing floor-to-ceiling glass or other non-structural elements must use post and beam configurations to meet load-bearing criteria.

In many areas, advice from a structural engineer or an architect will be required by your building department before you can remove a wall, but even if it’s not necessary, it’s a good idea. Accidentally removing a load-bearing wall—even if a general contractor advises that it’s safe—can cause major structural damage, putting you and your family at risk and potentially costing thousands or tens of thousands of dollars in property damage.

First, most contractors will have a structural engineer create a report and plan for your project to ensure it’s safe to cut into the load-bearing wall. The contractor will then excavate around the wall, if necessary, measure the opening—allowing for additional space to fit and level the door, and then cut the doorway out. They will likely install a steel lintel as a header over the door for support. Once the doorway is cut out, they’ll demolish the concrete using sledge hammers and masonry chisels, clean up the surrounding concrete, and seal around the door with masonry mortar. 

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.

The Greene, NY homeowners’ guide to structural engineering services

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