Top-rated structural engineers.

Best structural engineers near Marshalltown, IA

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Top-Rated Structural engineers in Marshalltown - Updated Nov 2026

Avatar for Evolution Drafting
Evolution Drafting
3.7(
127
)
Draftsperson/CADDArchitectArchitect - For Business

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I am having a full master bath and kitchen remodel done with new layouts in both rooms and knocking out a wall. Evolution worked with me to quickly get a drawing done of the new layouts so that the contractor could get started on the project. They made sure to include me in the process so that the design would be done exactly as my wife and I envisioned. They communicated effectively throughout the process and were always courteous and professional. I recommend them to anyone with drafting needs."
Zeal Floor Plan
Charcoal
Palm Floor Plan
Charcoal Floor 2
Charcoal Floor 1

+23

Response time1 day
Response rate100%
69 neighbors recently requested a quote
Avatar for APEX Drafting LLC
APEX Drafting LLC
3.9(
7
)
Draftsperson/CADDArchitect

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. \nYou will find us to be competitively priced with close attention to the details. \nOur reputation is based on service, safety, and quality, regardless of how large or small the job. \nWe look forward to building a lasting relationship and guarantee your satisfaction! \n

Plan set 1
257 neighbors recently requested a quote
Avatar for Periphery Design, LLC
Periphery Design, LLC
5.0(
1
)
ArchitectArchitect - For Business

Serving Marshalltown, IA and surrounding areas

Approved

In business since 2004

Small jobs welcome

Offers commercial services

"Dave designed an addition for our home. The design is very cohesive and in harmony with the existing homeâ s architecture. His ideas, professionalism, and attention to detail are excellent, we look forward to the finished product."
Row House Apartments
Kitchen View
Historic Rehabilitation
Historic Rehabilitation
Addition-Bedroom Suite and Garage

+2

Response time11 hrs
Response rate92%
Recommended by100%of homeowners
Avatar for Terraform Development & Design LLC
Terraform Development & Design LLC
4.0(
1
)
ArchitectDraftsperson/CADD

Serving Marshalltown, IA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Offers commercial services

Terraform Development & Design LLC, delivers expert permit-ready architectural plans and drafting services nationwide. With 8+ years of experience and hundreds of clients across all 50 states, we create code-compliant residential and commercial construction documents that get approved fast and built right. \nFrom site plans, floor plans, elevations, structural & foundation drawings to MEP coordination, full construction sets, 3D renderings, interior design, solar PV layouts, and precise material takeoffs - we handle it all. Fast 4-6 week turnaround, 3 design revisions included, free revisions for city redline changes, transparent pricing (starts at $2,000), and direct partnerships with licensed engineers for stamps in every state.

908 neighbors recently requested a quote
Avatar for Konak Engineering
Konak Engineering
4.9(
8
)
Engineer - Structural

Serving Marshalltown, IA and surrounding areas

In business since 2004

Free estimates

"Aaron was very knowledgeable and turned around drawings in only a few days time to meet my tight project schedule. I will recommend him to anyone needing a structural engineer in the future."
Response time1 day
Recommended by100%of homeowners
Avatar for Martinez All Construction
Martinez All Construction
4.8(
5
)
ArchitectArchitect - For BusinessDraftsperson/CADD

Serving Marshalltown, IA and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Andres Martinez and his crew with Cesar and Adan did a phenomenal series of jobs at our home. They put in a beautiful and functional driveway, designed and constructed a very nice fire pit, and made a nice pad for our bbq grill. We were very pleased and impressed with their timeliness, professionalism, skills/talents, courtesy, and attention to detail. The pricing that Andres provided was very good and competitive with others. We will hire he and his team in the future for additional projects. We give them a 9.5 out of 10. You will not go wrong hiring this team for your next project!"
Concrete - Pouring & Repair Project
Concrete - Pouring & Repair Project
Additional Photos
Recommended by100%of homeowners
Avatar for Evolution Drafting
Evolution Drafting
3.3(
38
)
Draftsperson/CADD

Serving Marshalltown, IA and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"I was really under the gun due to a prior Architectural firm not performing their duties per building plan codes. Not only were the plans incomplete but the City Plan Reviewer states(The Worst plans he’s ever seen) they will not make adjustments unless there is an additional charge for Thousands. Evaluation’s saved my clients and drew our project per code, along with Engineering in less time then they quoted. I highly recommended them, Especially Kirsten. You went above and beyond trying to coordinate this project. The staff was very professional and I will use them on all my projects. Sincerely, Frank B BCM Builders"
Charcoal Residential
Response time6 hrs
Recommended by23%of homeowners
Avatar for Rooftek of Iowa
Rooftek of Iowa
5.0(
1
)
Engineer - Structural

Serving Marshalltown, IA and surrounding areas

In business since 2023

Free estimates

Warranties offered

Over the past several years, the RoofTek® team has completed thousands of rooftop installations. Whether they are affordable re-roofs or more complex solar panel installations on steep pitch custom homes, we take care of it all. Fall is typically the best season for roof repairs or to replace an existing roof, and each year we install hundreds of residential roofs. We keep thousands of homeowners dry, secure, and worry-free. More important than the number of roofs we work on is our total commitment to quality. We never stop training our installers, project managers, and team to ensure RoofTek® consistently delivers the most value in our industry. \n \n

All done!
Home Before Installation
3D Measuring!
Shingles Before
Crew Hard at work, Keep the workspace clean!

+12

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Structural Engineering FAQs, answered by experts

It is not recommended to cut or drill into LVL (laminated veneer lumber) beams. As major structural components of a home, their composite structure can be compromised by alterations, which can weaken them and lead to cracking over time. If you must make modifications to an LVL beam, it is crucial to consult a structural engineer or general contractor first. A professional can advise on whether it's safe and provide specifics on the appropriate bit size, depth, and directionality for any necessary drilling.

Yes, they offer plans for repairs or reinforcements to address issues.

Any issue that affects the structural integrity or soundness of a home is considered a structural issue. In addition to foundation cracks, other signs of structural issues include roof leaks, bowing walls, sloping floors, gaps around windows and doors, and more.

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.

On average, 6 inches of concrete can hold around 150 pounds per square foot, but the exact weight that 6 inches of concrete can hold depends on factors such as the type of concrete, the reinforcement method, soil conditions below, and structural design. If you’re concerned about the longevity of your concrete patio, walkway, or driveway, hire a professional to help you choose an appropriate concrete thickness and reinforcement method for your needs.

The Marshalltown, IA homeowners’ guide to structural engineering services

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