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Verified Reviews for Structural Engineering pros in Frederick, OK

*The Angi rating for Structural Engineering companies in Frederick, OK 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 Frederick, OK 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 November 18, 2025

Find Structural engineers in Frederick

Avatar for Evolution Drafting
Evolution Drafting
3.2(
81
)

Serving Frederick, OK and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"They were excellent. They quickly made a draft that only needed 3 minor adjustments. The final product was exactly what I needed. They referred me to a structural engineer for review. The whole process took half of the time that they initially estimated. I would definitely use them again."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
70 neighbors recently requested a quote
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Avatar for Roger Allen Restorations & Homes
Roger Allen Restorations & Homes
4.3(
19
)

Serving Frederick, OK and surrounding areas

In business since 1947

Free estimates

"It went just fine.  This was a pretty simple, straight-forward job.
I needed someone to focus on this fairly small ($3,040) and get it done, properly and promptly.
Roger stayed right on top of it until it was done, well done."
A small portion of a custom kitchen
Another kitchen with glass and enviroglass countertop
A million dollar foyer...
Installed Travertien after reinstalling a new concrete shower pan
The final finish

+2

Recommended by72%of homeowners
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Avatar for Evolution Drafting
Evolution Drafting
3.3(
38
)

Serving Frederick, OK and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"I was looking for someone to handle blueprints and engineering for a home in the Florida Keys. Having built homes before, I’m familiar with the process and already had some sketches with a few changes I wanted to make. I found Evolution Drafting online, and Kristine walked me through everything clearly. Lindsey was assigned to my project after a quick introduction and a follow up she was AMAZING to say the least! The initial drawings were excellent, and any changes I requested were completed within days. Compared to another project that took nearly a year, this was incredibly fast and detailed. My wife and I are very impressed. I highly recommend Evolution Drafting LLC—ask for Lindsey on your project. Truly top shelf!!"
Charcoal Residential
Response time6 hrs
Recommended by23%of homeowners
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Avatar for Skylights Unlimited LLC
Skylights Unlimited LLC
4.8(
6
)

Serving Frederick, OK and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Prompt return of telephone call to set up installation. Installers were prompt, cordial and professional. Cleaned spray debris from installation and helped an elderly neighbor clean her sun tunnels at no charge."
Recommended by100%of homeowners
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MLowe Services, LLC
New to Angi

Serving Frederick, OK and surrounding areas

In business since 2018

Free estimates

Credit card accepted

MLowe Services, LLC, is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Response time2 hrs
Response rate100%
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FAQs for structural engineering projects in Frederick, OK

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.

Yes, all states require structural engineers to carry the proper license, with specifics determined by each state. You can use Angi’s state licensing tool to confirm that the structural engineer you’re considering holds the required licensing to tackle your job. Hiring an unlicensed structural engineer will not only cause issues with permits but it could also lead to an unsafe building. The cost of a professional, licensed, and experienced engineer is well worth the investment.

The process of hiring a structural engineer starts by finding reliable professionals in your area and comparing quotes from at least three of them. From there, you can narrow down your selection by asking some leading questions:

  • Do you have experience working in my specific area?

  • Do you have professional indemnity insurance?

  • What will your structural report cover?

  • Do you charge a flat fee for a structural report or by the hour?

  • How long have you been in business?

  • Do you have a list of customer references?

Structural engineers typically charge between $100 and $250 per hour, but many jobs won’t be based on a per-hour fee. Instead, the structural engineer will offer a flat rate for the inspection and structural calculations. The flat rate for a structural engineer costs an average of around $550, but you could see prices ranging from $300 to $800, depending on the complexity of your project and how easy it is to access certain parts of your home for the inspection.

Whether you’re building a new home or building an extension on your existing property, you will likely need both a structural engineer and an architect. A structural engineer will determine what loads your foundation and framing can safely handle, and an architect will draw plans according to those structural calculations to simplify the building process. You can start by contacting a structural engineer near you, as many work alongside architects and can get all of the prep work done at once.

The Frederick, OK homeowners’ guide to structural engineering services

From average costs to expert advice, get all the answers you need to get your job done.

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