Who we are

We are committed to using our 70 years of combined experience to surpass our clients' expectations.

All while keeping quality of work, commitment, professionalism and safety at the highest priority.

Straight Line Industrial Services, Inc. originally began as Straight Line Insulation, I. LP. This minority owned business is a result of hard work, dedication, teamwork and family. The original three owners are brothers that have a combined 70 years of experience in the Insulation industry.

Our goal is to be the leading provider of insulation, steam Tracing, Sewn Blankets and Scaffolding in the Houston and surrounding areas. We take pride in our facilities and dedicate time to making our offices comfortable and professional. We welcome anyone that would like to visit, take a tour and get to know us up closed.


The safety of our people and the environment is a top priority.

Our Safety Program goals reflect our philosophy and commitment to exhibit the highest level of compliance in the industry.

Our achievement is Safety and Customer Satisfaction. We have worked over 400,000 safe man hours for 2019, SLI has a complete safety program that includes: Pre-Employment Drug Testing and random - Employee Orientations-Daily JSA or Job Safety Analysis-Right to Know-Hazard Communication, MSDS Manuals-LOTO Training-Sexual Harassment Policy-Scaffolding and Incident reporting- Hearing Conservation. Our Current EMR is 0.60.

In addition, we have established a positive culture that encourages and involves all employees in the continuous improvement of safety practices. We also invest in the best equipment available and ensure that it is always maintained appropriately.


First, safety is our slogan at Straight Line Industrial Services, Inc. and we demonstrate it every day with an unmatched commitment to protecting our employees & customers at all times.


Another goal at Straight Line Industrial Services, Inc. is to accomplish zero incidents or injuries every day. In order to help accomplish this; we give emphasis to teamwork, teach safe behavior practices on the job and constantly work to identify risks.


Our extensive safety program also includes regular seminars & meetings, site visits, presentations, bulletins and discussions - all designed to audit, monitor and constantly improve our safety performance.


At Straight Line Industrial Services, Inc. we believe that people are our most valuable assets and that their health and safety is our highest priority and greatest responsibility.

Safety Resources Program & Testing

  • EMR & Insurance Documentation
  • Organization Chart
  • OSHA General Requirements
  • OSHA Logs
  • Workers Rights
  • Close Call Policy
  • Sexual Harassment Policy
  • Safety, Health & Environmental (ES&H) Policy
  • In House Safety Training SLIS
  • Regulatory Agency Inspection Guideline
  • DISA Random Drug Testing
  • Drug and Alcohol Policy
  • Disciplinary Action Policy
  • General Safety Rules
  • Scaffold User Safety Program
  • Medical Services and First Aid
  • Asbestos Safety Awareness
  • Hazard Identification and Risk Assessment
  • Fall Protection Program
  • Personal Protective Equipment Program
  • Safety Record Keeping Program

our mission & Core Values

Mission Statement

At Straight Line Industrial Services, Inc., we believe being a responsible service company is not only the right thing to do, but the right thing to do for our business & for the safety of our employees.

Our mission is to be the national insulation service & fabricator company focused on meeting those with insulation needs in their industry. We seek to produce the best service & product to our customers as we provide opportunities for growth and enrichment to our employees.

Core Values
  • Honesty - Commitment to the truth
  • Excellence - Continuous improvement, in everything that we do
  • Integrity - Strength of character, and taking responsibility
  • Respect - Treating each other with respect, and maintaining trust
  • Safety - Putting safety first in all activities
Motivation & Determination

Core Values

Proud Members

Avetta Scaffold & Access Industry Association
Ilta ABC members
Houston Area Safety Council
Houston Minority Supplier Development Council Industrial Safety Training Council
Coating Society of the Houston Area Safety Council Texas City
Members of Isnetworld DISA Drug Testing


Equal Opportunity Employer (EOE)

Straight Line Industrial Services, Inc. (SLIS) welcomes all candidates with experience and qualifications. We are an Equal Opportunity Employer.

Open Positions

We are currently filling the following positions:
Industrial Insulators - Download Application

E-Verify Program

Straight Line Industrial Services, Inc. (SLIS) is a proud user of the E-Verify system. Per the E-Verify website; E-Verify is an Internet-based system that compares information from an employee's Form I-9, Employment Eligibility Verification, to data from U.S. Department of Homeland Security and Social Security Administration records to confirm employment eligibility.