611 Bill Summers International Blvd, Weslaco, TX 78596, US

Sigler, Winston, Greenwood & Associates
Since 1945

About Us


SWG Engineering, LLC., has called the Rio Grande Valley home since 1945.  Offices in Hidalgo and Cameron Counties.

SWG Project 1950's


 Our experience, combined with our advanced technical support, provides us with the unique ability to expedite the planning and design phase before the actual construction.     

Sharyland WTP No. 3

Our Approach

At SWG, our focus is building long-term client relationships. Leadership for our corporation begins with it's principles. All of our engineers are Professional Engineers registered in the State of Texas. Each employee is an integral part of our team. Not only are we capable of providing engineering plans but also assist with permitting, grant writing and other construction support services.
We envision cost-effective engineering design concepts without compromising on quality.  SWG Engineering, LLC. is committed to our client's success.  

La Feria Nature Park

Contact Us

Drop us a line!

Better yet, see us in person!

We love our clients, so feel free to visit during normal business hours.

SWG Engineering, LLC.

611 Bill Summers International Blvd, Weslaco, TX 78596, US

(956) 968-2194


Monday - Friday: 8am - 5pm