
Serving Knoxville, IA and surrounding areas
Approved
In business since 2016
Free estimates
Small jobs welcome
"Created structural drawings for submission to the City of Ames in a very timely manner with great success for our project."





+4

*The Angi rating for Structural Engineering companies in Knoxville, IA 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 Knoxville, IA 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 August 07, 2026

Serving Knoxville, IA and surrounding areas
Approved
In business since 2016
Free estimates
Small jobs welcome
"Created structural drawings for submission to the City of Ames in a very timely manner with great success for our project."





+4

Serving Knoxville, IA and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Evolution Drafting did a great job modifying my existing plans and updating for Arizona codes and took care of the structural engineering as well."





+23

Serving Knoxville, 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."





+2
Serving Knoxville, IA and surrounding areas
Approved (Corporate)
In business since 2023
Offers commercial services
Were a family owned and operated company that values honesty and integrity, and stands behind our work. We offer over 40 years of industry experience. We specialize in Asphalt Shingle Roofing installation, replacement, and repairs. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

Serving Knoxville, 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.
Serving Knoxville, IA and surrounding areas
Approved
If you dream it I can design it and bring it to fruition

Serving Knoxville, IA and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"Great. Neil's crew did a fantastic job. They worked quickly and you could tell they were confident in their work. We had used DeWit Construction several years ago at another home (this was before the roofing section became it's own entity) to put on a new roof after damaged during high wind/hail storm and also to rebuild the underside of an upper deck which had not been correctly supported. We are already considering them for another project."





+8

Serving Knoxville, IA and surrounding areas
In business since 2008
Free estimates
Emergency services offered
"Des Moines Area Roofing was professional, trustworthy, and demonstrated excellent attention to detail from initial contact to job completion. Cleanup was so thorough that the next day you wouldn't even know that such a major project had taken place. It has been 2 weeks since the new roofs and we haven't seen even one stray nail left behind (and they did a complete tear down to both buildings, right down to the wood). An excellent company with which to do business. I offer my highest possible recommendation."




Serving Knoxville, 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!"



Serving Knoxville, IA and surrounding areas
In business since 2008
Free estimates
Offers commercial services
"Our relationship with Tim was an exceptional one. We live in a house he designed, can not find any problems with it, he did a great job. The plans exceeded our expectations."
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