Permit-ready, PE-stamped structural plans for renovations that change how your home is built and honest guidance on when you don’t need one.
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Structural design for remodeling is needed when a renovation changes how loads move through your home removing a load-bearing wall, adding an opening, or reconfiguring floor framing. Cosmetic updates like paint, flooring, or cabinetry don’t require an engineer. ISTA Engineers provides PE-stamped structural plans for Colorado remodels that do.
Not every remodel needs a structural engineer but plenty do, and it’s not always obvious which ones. Structural design for remodeling covers the engineering behind renovations that change how loads move through your home: removing a wall, opening up a floor plan, or reconfiguring rooms in a way that touches the structure.
ISTA Engineers prepares stamped structural plans for remodeling projects across Colorado, working with homeowners, contractors, and architects to keep renovations safe, code-compliant, and moving through permit review.
When Your Remodel Needs Structural Engineering
A remodel typically needs structural engineering when it involves:
- Load-bearing wall removal especially when opening up a kitchen, living room, or floor plan.
- New openings windows, doors, or pass-throughs cut into load-bearing walls.
- Floor plan reconfiguration moving rooms in ways that shift loads or require new framing.
- Cutting into structural members plumbing or electrical work that requires notching or drilling joists, beams, or headers.
- Structural upgrades for new fixtures reinforcing framing for a kitchen island, heavy appliance, or new equipment load.
When You Probably Don’t Need an Engineer
We’d rather tell you honestly when you don’t need us. These renovations typically don’t require structural engineering:
- Cosmetic updates paint, flooring, countertops, cabinetry, tile, and fixtures don’t touch the structure.
- Like-for-like replacements replacing a window or door with the same size opening.
- Confirmed non-structural partition walls interior walls that don’t carry loads above them, though it’s worth having this confirmed rather than assumed.
- Electrical and plumbing work unless it involves moving structural walls or cutting into joists, beams, or headers.
If you’re not sure which category your project falls into, a quick assessment is the fastest way to find out and often cheaper than assuming either way.
What’s Included in a Remodel Structural Package
- Site assessment evaluating the existing framing and confirming what’s actually load-bearing.
- Load calculations sizing beams and headers for the loads your changes will redirect.
- Framing plans beam and header sizing, post locations, and connection details.
- PE-stamped drawings a permit-ready set for your building department.
How This Differs From New Construction or an Addition
Structural design for remodeling works within your existing building modifying what’s already there rather than adding new foundation or square footage. If you’re adding new space, see New Addition Design; if you’re building an entirely new structure, see New Construction Design. For a deeper look at load-bearing wall removal specifically, see removing a load-bearing wall.
What Remodel Structural Design Costs
A structural assessment and engineered plan for a typical wall removal or opening commonly runs in the range of $500 to $2,000, with more complex reconfigurations larger spans, multiple walls, or second-story work trending toward $2,000 to $5,000 or more. This is separate from permit fees, which in most Colorado jurisdictions run a few hundred to about $1,000 depending on project scope.
Our Process
We start with an assessment of your existing structure often a site visit then design the specific changes your remodel requires: beam sizing for a removed wall, header design for a new opening, or reinforcement for a reconfigured space. We coordinate with your contractor throughout, and respond to plan-review comments to keep the permit moving.
Why Choose ISTA for Your Remodel
- Colorado-licensed Professional Engineers experienced in existing-structure evaluation.
- Certified WBENC, WOSB, MWBE, and DBE a women-owned, minority-owned firm.
- Honest scoping we’ll tell you when you don’t need us, not just when you do.
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Remodeling Structural Design FAQ
Does every remodel need a structural engineer?
No. Cosmetic updates, like-for-like replacements, and confirmed non-structural walls typically don’t. Anything that removes a load-bearing wall, adds an opening, or cuts into structural framing usually does.
Can you tell me if my wall is load-bearing before I start?
Yes. A site assessment can identify which walls are load-bearing and what engineering, if any, your remodel needs.
What does a remodel structural package include?
A site assessment, load calculations for the changed structure, beam and header sizing, and a PE-stamped drawing set for permit submittal.
How much does structural design for a remodel cost?
A typical wall removal or single opening runs about $500 to $2,000; larger reconfigurations trend toward $2,000 to $5,000, separate from permit fees.
How long does structural design for a remodel take?
It depends on scope, but most remodel structural packages are completed in one to three weeks once the site assessment is done.
Do you work directly with my contractor?
Yes. We coordinate structural plans with your contractor or architect throughout the renovation.
Start Your Remodeling Project
Tell us what you’re planning to change and we’ll let you know exactly what engineering it needs and if it doesn’t need any. Request a consultation or call (720) 740-4060.