About Us
Founded in Texas by Cullen Quinn, External Technical Services is a full-service landscape construction firm that designs and builds outdoor spaces suited to your home or work space.
We agree with our clients that we are fast, on budget, and deliver a great product.
When he's not delivering authentic designs and providing leading construction services, Cullen is a religious gym goer and a decent hunter.
.png){kind=small}
OUR WORK
Contact
310 N Henderson Ave #1237, Dallas, TX 75206
929-302-9595
9am-5pm M-F; 11am-5pm Sat & Sun
What People Say
We love our customers, so feel free to call us during normal business hours to discus landscape design on your next project.
ALWIN,CFO OF PRIVATE UNIVERSITY
Did what they promised, when they promised, at the price promised.
JODY,CHURCH OF CHRIST BRANCH REP.
They put in a sidewalk and pad for a bench in our Prayer Garden at Monterey Church of Christ. In the sidewalk he put brick paver inlays. It looks amazing. He performed the job to our complete satisfaction! He kept me informed of his schedule and showed up when he said he would! We will use him again!
NANCY,
HOMEOWNER
Cullen is a young man of absolute integrity. Beyond always honoring his word and backing the work of his crew, Cullen honors all of his commitments
Check Out More Reviews:
