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Top-Rated Structural engineers in San Marcos - Updated Nov 2026

Avatar for Level Engineering Austin, TX
Level Engineering Austin, TX
4.4(
311
)
Engineer - Structural

Serving San Marcos, TX and surrounding areas

Approved

In business since 2015

Small jobs welcome

Credit card accepted

"Zach worked with us and did a great job. He was timely, courteous and very professional. He had great recommendations & input and should I ever need any type of structural engineering advice or reporting I would request Zack again."
Renovations/Additions
Renovations/Additions
Structural Failures
Structural Failures
Structural Failures

+12

Recommended by91%of homeowners
Avatar for GreenWorks Inspections & Engineering
GreenWorks Inspections & Engineering
4.9(
272
)
Engineer - Structural

Serving San Marcos, TX and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Exceptional professionalism. In-depth measurements. Critically valuable information. Patient responses to my questions and valuable insight from the engineering department."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for Alaska Engineering, LLC
Alaska Engineering, LLC
5.0(
7
)
Engineer - Structural

Serving San Marcos, TX and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Kamal was extremely helpful in surveying the structural integrity of our dock. He went through immense detail to outline everything that needed to be repaired and was very efficient in getting it back to me for our broker in the sale of our home. I highly recommend Alaska engine engineering!"
New Residential Builds
New Residential Builds
New Residential Builds
New Residential Builds
New Residential Builds

+7

Response time11 hrs
Response rate95%
33 neighbors recently requested a quote
Avatar for Crosstown Engineering
Crosstown Engineering
4.6(
11
)
Engineer - Structural

Serving San Marcos, TX and surrounding areas

Approved

In business since 2012

Credit card accepted

Customers say: True professional

"The services performed by lead engineer Adam Green were excellent. Adam arrived on time, was dressed professionally, and brought a positive “just the facts, ma’am” demeanor, which I greatly appreciated. Adam was thorough and efficient. He answered all my questions honestly and directly. In addition, Melissa, who handled my original call to Crosstown, was extremely professional. When we spoke on the on the phone, I could tell she was actually listening to me and focusing on my expectations from Crosstown. She wasn’t just waiting to give me a speech or quote a price. She explained the difference between having the lead engineer ( Adam ) and having another engineer come out for the assessment. Overall I would HIGHLY recommend Crosstown to anyone who was having issues with their foundation or to anyone who was interested in an unbiased factual report based on science."
The map of where repairs were needed was included in the engineering report.
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for MARIO SANCHEZ & ASSOCIATES CORP.
MARIO SANCHEZ & ASSOCIATES CORP.
4.7(
12
)
Draftsperson/CADDArchitectArchitect - For Business

Serving San Marcos, TX and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Emergency services offered

MARIO SANCHEZ & ASSOCIATES CORP.\nis a one stop shop for Real Estate Development. Our strength is in our relationships with Architects, Engineers, and Contractors. By collaborating together we can provide a turn key development project in less time and on budget. Our services include but are not limited to:\n1. FINANCING\n2.LAND ACQUISITION \n3.SCHEMATIC DESIGN\n4.DESIGN DEVELOPMENT\n5.CONSTRUCTION DOCUMENTS\n6.PERMITS AND PROCESS\n7.CONSTRUCTION\n

Container Homes Renders
CHANTLI
Septic Design
Render View 1
Sandoval's Foundation Design

+46

Response time12 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Imagine Design Construction
Imagine Design Construction
4.4(
8
)
Draftsperson/CADD

Serving San Marcos, TX and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

We take pride in our company! We are reliable, we have great communication, integrity, and quality plans drawings. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

1st Floor Unit Layout
2nd Floor Unit Layout
3rd Floor Unit Layout
Door Lug Layout
1st Floor Stud & Channel Layout

+44

Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
Ruben Cantu Design & Drafting Services
5.0(
5
)
ArchitectDraftsperson/CADD

Serving San Marcos, TX and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

We specialize in all phases of home building and new construction. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today! ***If you need an architect, I cannot provide that service. I am a designer to create plans, but not blueprints.****

Response time2 days
Recommended by100%of homeowners
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Structural Engineering FAQs, answered by experts

The National Association of Home Builders requires repair of any foundation crack of more than one quarter of an inch, although local regulations may vary. In general, any visible crack that is growing in size, allowing water through, or that you have just noticed, is a good reason to call a structural engineer. Cracks can be a sign of a sinking foundation, so an inspection is a good idea for your peace of mind.

The easiest way to tell if a wall is load bearing is to check if it’s an exterior wall or if it runs perpendicular to the joists above and below it (or parallel to beams). Exterior walls are almost always load-bearing, and walls that run under beams or parallel to them are also usually load-bearing. There are exceptions to these rules, and walls that don’t fit into these categories can still be load-bearing. If you’re unsure, hire a structural engineer to look at your home to assess whether or not the wall is structural.

You should avoid drilling or cutting into load-bearing beams because removing material will weaken it and increase the risk of structural damage or even collapse. If you do need to drill into a load-bearing beam, speak with a structural engineer first to discuss where it’s safest to drill and the width and depth of the bit that’s safe to use.

If you’re building new construction or adding onto your existing home, hiring a structural engineer is not only worth it but it’s probably required by your local building department. Structural engineers will ensure you aren’t making your home unsafe in the building process, which is crucial from a safety perspective but also a legal one. It’s also worth hiring a structural engineer if you’re making changes to structural components, like removing a load-bearing wall.

Yes, you can build over a stump if the roots are no longer alive. Living roots will continue to grow and may damage your new construction over time. Similarly, you should also remove rotting stumps because they may continue to attract pests and even cause new structures (especially those made from wood) to decompose as well.

The San Marcos, TX homeowners’ guide to structural engineering services

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