24-Hour Emergency Service Available 314.209.1782 (MO) - 618.877.5933 (IL)




HAAG Certified

In the roofing and insurance industries, HAAG Certification is one of the highest qualifications a professional can carry. ONEWAY carries HAAG Certification in both residential and commercial sectors. HAAG Commercial Inspectors are specially trained to diagnose damage on all building types. They are also well versed in code requirements, safety measures, and industry standards.


CertainTeed Select Shingle Master

This credential is the highest level of qualification what a company in our industry can earn. Simply, by having this certification, we are the best of the best. What this means for our clients:

  • Highest required amount of tested installers and supervisors in the roofing industry
  • Quality workmanship, guaranteed through testing, training, and warranty packages
  • ONEWAY submits valid proof of workers’ compensation insurance and liability insurance regularly
  • ONEWAY team members sign and agree to abide by a Code of Ethics set by CertainTeed
  • A certified Shingle Quality Specialist is required to be on-staff.
  • ONEWAY has submitted to and passed the Business Fiscal Responsibility exa, which means we are a financially-stable company.


A leading manufacturer of building materails in the U.S. CertainTeed has been in business since 1904 and offers extensive training course, certifications, and quality products for its cients. ONEWAY has the highest quality possible certification through CertainTeed as a Select Shingle Master.


Better Business Bureau

As a BBB Accredited business, ONEWAY strives to ensure customer satisfaction on every job. No one is perfect, and we don’t pretend to be. However, our guarantee is that we will work with you in any way possible to guide your project in a professional and timely manner.


Roofing & Siding Contractors Alliance, Inc.

A St. Louis-based organization comprised of locally owned and operated roofing and siding professionals. ONEWAY joined this local organization to support those working in our industry in St. Louis and surrounding areas. Visit the RSCA website for more information.



JM Peak Advantage Contractors are specially trained and educated in all aspects of JM products and services. Having this certification signifies that ONEWAY’s commercial projects are completed in alignment with JM quality specifications and high standards of workmanship.


GAF Master Elite

Asking the Right Questions is the Key to Selecting the Right Roofing Contractor.

To become factory-certified as a GAF Master Elite™ contractor, a roofing contractor needs to show that they are:

  • Properly Licensed
    Licensed by their state (or province) to perform roofing work*
  • Adequately Insured
    for your protection
  • Have a Proven Reputation
    for providing quality roofing services throughout the community
  • Committed to Ongoing Professional Training
    to ensure quality installation



GAF Certified Green Roofer

The GAF Certified Green Roofer designation recognizes steep slope roofing contractors who are environmental leaders. Developed in consultation with the USGBC (developers of the LEED® standard, and acknowledged leaders of the green building movement), this desirable credential enhances positioning as an environmentally responsible contractor.



5494 Brown Road, Suite 130
Hazelwood, MO 63042
Phone: 314.209.1782 Fax: 314.209.1770 info@onewayconstruction.net


(LIC# 104015716)
440 W. Pontoon Rd
Granite City, IL 62040
Phone: 618.877.5933
Fax: 618.877.5973

Click for the BBB Business Review of this Contractors - General in Earth City MO

ONEWAY Inspection