Get matched with top structural engineers in Longmont, CO

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4.6

(456 reviews)

Top-rated structural engineers.

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Innovative Structural Services
4.6(
50
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2007

Credit card accepted

Customers say: Quick response

"They came out to assess any recent changes to the structural integrity of our home. They were timely, knowledgeable and thorough. They were also very helpful in communicating their initial thoughts throughout the inspection. (written report is still pending)"
New Floor Plan Level 1
New Floor Plan Level 2
Org. Floor Plan Level 1
Org. Floor Plan Level 2
Garage Addition Plan

+1

Response time1 day
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for ISTA Engineers
ISTA Engineers
4.7(
31
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

"Pedram provided us with great service at an exceptional value. He completed the necessary drawings for our structural wall removal, and we were able to get a permit with no comments from the city. I would recommend to anyone looking for a structural engineer."
Remodeling Project
Dumfries Project
Removing Bar Walls
Response time9 hrs
Response rate88%
Recommended by96%of homeowners
Avatar for Straight Edge Construction Services LLC
Straight Edge Construction Services LLC
5.0(
4
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"From the start I knew Ryan was the right person, because he called me, the only one of the engineers that actually called me. He communicated regularly, let me know straight up the results and explained it all to me. Is also willing to answer questions from my contractor."
Response time1 day
9 neighbors recently requested a quote
Avatar for Vital Architecture, LLC
Vital Architecture, LLC
4.3(
7
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"We had a great experience working with Vital Architecture and highly recommend her. For Little Village Childcare, she helped us save money by confirming certain landlord requests were not required by code and securing a waiver that saved space and costs. She also reduced civil engineering expenses by preparing the playground drainage plan herself. During construction, she provided extra support at no cost and helped us handle contractor changes wisely. For another church childcare project, she identified zoning issues early so everyone understood the risks. In Colorado Springs, she warned a tenant about higher plumbing costs required by childcare regulations, helping them avoid a bad lease. For an adult care project, she reviewed the food area and explained new kitchen and ventilation requirements. Carmen is knowledgeable, thorough, and truly looks out for her clients’ best interests."
Star light Subdivision
Fairview Littleton Co.
Hazel ADU
New Beach SFH
New Mixed use Mason Square

+22

Response time4 hrs
Response rate97%
6 neighbors recently requested a quote
Avatar for Evolution Drafting
Evolution Drafting
3.3(
85
)

Serving Longmont, CO 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."
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
Medeiros Architectural Group, Inc.
4.9(
17
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2004

Free estimates

Customers say: True professional

"We got what we paid for but it was going to cost too much to proceed to get actual cost estimates and proceed with design and blueprints and construction.  We were disappointed that we could not get actual cost estimates and design for a reasonable price so we could decide whether to pursue the addition.
"
Response time1 day
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Willoughby Design, LLC
Willoughby Design, LLC
5.0(
14
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2013

Free estimates

Offers commercial services

"We have been working with Todd Willoughby since early in 2018. We had purchased a piece of land along the Chesapeake Bay and wanted to build a small but thoughtfully designed contemporary garden cottage for our retirement. After speaking with a number of architects we chose Todd and we have been very happy with that decision. Over several months, we worked have closely with him through the several design phases, culminating in a very complete set of construction documents, that we are now using for bidding. Throughout the process, we have found Todd to be personable, smart, perceptive and creative. He has been able to translate our ideas into working drawings that one of the contractors noted was called the most detailed he has ever seen. Todd has captured our vision for an environmentally friendly house with solar and rainwater harvesting. We have met with him many times talk through the many details, choices, and constraints you inevitably face. He has done all the coordination needed with the other specialties the engineers, surveyor, and solar energy firm. Having enjoyed this first part of the collaboration, we are hiring Todd to help us through the bid evaluations and construction admin phases. The best recommendation would be our actual house, but until we get there we can say Todd has done an excellent and professional job getting us this far, and we look forward to working with him through to a completed project."
Eagle's Nest
Eagle's Nest
Eagle's Nest
Eagle's Nest
Eagle's Nest

+12

Response time2 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
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Structural Engineering questions, answered by experts

A construction manager is particularly useful in the case of a large-scale build with custom design elements, so it’s usually worth it to hire one. They can help manage your budget, maintain quality control, oversee timelines, and navigate unexpected hurdles. While construction managers are pricey, they can actually save money in the long run by identifying cost-saving opportunities and ensuring the project stays within budget.

Absolutely, as it ensures designs are viable and won’t compromise structural integrity.

Through proper drainage solutions and compacting the foundation soil.

Yes, unresolved damage can decrease property integrity and market value.

Yes. Foundation walls are always load-bearing.

The Longmont, CO homeowners’ guide to structural engineering services

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