Our Passion

At the end of the day it’s not about what you have or even what you’ve accomplished…
It’s about who you’ve lifted up, who you’ve made better, and what you’ve given back.
- Denzel Washington

We are deeply appreciative of the success we have had so far and attribute much of it to the people who have helped make us who we are. It is a Promise Priority to treat our clients, employees, and surrounding communities with the utmost care and generosity.

Check out our 4 Giving Back Initiatives


Giving Back

August 15th, 2020

Genesis Women’s Shelter and Support

Genesis Women’s Shelter was created to give women in abusive situations a way out. Their mission is to provide safety, shelter and support for women who have experienced domestic violence, and to raise awareness regarding its cause, prevalence, and impact. Genesis’s mission deeply resonated with Promise and moved us to do what we could to help keep the women and children of Genesis safe, especially during this pandemic. We executed our Level 3 disinfecting preventative measure against COVID-19, which includes a special electrostatic chemical spray that is clinically proven to kill viruses and bacteria and leave a lasting shield of protection. While we disinfected the outdoor playgrounds and their two buildings consisting of kids rooms, common areas, kitchens, laundry rooms, restrooms, offices, individual apartments, we mingled with the Genesis staff and occupants. We also distributed snacks, beverages, and arts and crafts, exchanged warm words, and donated boxes of hand sanitizer and masks. We very much believe in Genesis’s motto: “There is help and there is hope.”

Please consider joining the cause at www.genesisshelter.org.

Please contact [email protected] for more information.

Helen Yoo


Helen Yoo serves as the founder and CEO of Promise Total Services, Inc. She has a history of long lasting business partnerships and attributes her success to her years of experience in the janitorial service industry, her core values of being Proactive, Responsive, Observant, Meticulous, Innovative, Sensible, and Ethical, and her devotion to follow through with her commitments. As the name suggests, the company’s focus on reliability and customer satisfaction is the backbone of Promise TSI, resulting in solid communication, quick turn-arounds, and exceptional quality.

Since its founding in 2003, Promise TSI has grown from its humble beginnings to hundreds of properties and loyal employees in Dallas, Fort Worth, and Houston Texas. Because of Helen’s heavy involvement in all facets of the company, Promise TSI has the unique quality of functioning at the caliber of a global company while having the distinct personal touch of a family business.

Helen was born and raised in Seoul, South Korea with three siblings in a home full of music. She went on to major in piano, earning a Bachelor of Music at Yonsei University, then came to America to continue her studies at the master’s level with a harnessed focus on musicology. Helen is a proud mother of two and always aims to live an exemplary life of faith and gratitude.


M.M. Coursework in Musicology, Stephen F. Austin State University
B.M. in Piano, Yonsei University


Cell: 214-317-0387
[email protected]