About Us

About First Defense Insulation LLC

Learn more about DFW Metroplex's home comfort experts

First Defense Insulation LLC is a locally-owned and operated home comfort contractor serving Northeastern Texas. We focus on delivering quality services to improve both the comfort and energy efficiency of your home.

From attic insulation and air sealing to duct sealing and duct cleaning, First Defense Insulation LLC has you covered! We provide free estimates to homeowners throughout Frisco, Garland, Plano, and locally!

About Our Owners

John Blackwelder

John Blackwelder is a Co-Founder of First Defense Insulation and serves the company as CEO. While attending school, he worked for his father at the family's dry-cleaning business learning the values of working hard, serving others, ethical business practices, and building meaningful relationships.

The first 15 years of his professional career, John served as a Law Enforcement Officer, Firefighter, and Paramedic. John earned a B.S. degree in Criminal Justice from Sam Houston State University.

After public service, John was recruited to work for one of the largest Spray Foam Insulation companies in the south. In four short years, he worked at every level of the business from installer, seven figure a year salesman, operations of his local branch, director of operations, to management of the company and all departments. John co-owns a trucking company with his brother and is an investor in other businesses.

John married his beautiful wife Amy in 2008 and they both share a love for animals. Their "children" include five dogs, three horses, two goats, a cat, and chickens. John is an adopted son of two loving parents and a twin brother. He enjoys experiencing new life adventures with Amy, spending time with his family and four-legged children, riding motorcycles, and being active in the community.

Shadwick Wall

Shadrick Wall is the co-founder of First Defense Insulation and serves the company as COO. He has been working and teaching in the insulation industry since the mid 1990's. He is an incredibly passionate team player and carries that same philosophy in his desire to grow small businesses. He brings persistence, experience, and a strong voice to the table when tackling issues. He is a dedicated father, husband, and friend.

When he is not in the office or with his family you can usually find him on the golf course. His experience behind the "operational wheel" of a company is what gives people that peace of mind to know that they chose the right company for their project. He says what he does and does what he says.

Meet Our Team

View all team members

Amy Blackwelder Appointment Center Manager
Ana Wall Marketing Manager
John Blackwelder Co-Founder
Shadrick Wall Co-Founder

First Defense Insulation LLC is the local expert for all things home comfort. We proudly service Garland and all of DFW Metroplex. Schedule your free estimate today in Garland, Plano, Frisco, Allen, Richardson, Wylie, Rowlett, Addison, Dallas, Sachse, and the surrounding cities!

Looking for a price? Get a no cost, no obligation free estimate.

our service area

We serve the following areas

Our Locations:

First Defense Insulation LLC

Dallas, TX 75208