Zero/Six Consulting, LLC is a multifaceted professional services company specializing in the commissioning of high-performance buildings.

icon_widget_image Monday-Friday: 8:00 AM to 5:00 PM icon_widget_image 1027 Tremont Street, Galveston, TX 77550. icon_widget_image (409) 740 0090 (Office) (409) 740 0554 (Fax) icon_widget_image
  /    /  Bill Coltzer Jr.

Bill Coltzer Jr. , AIA


Bill Coltzer Jr., AIA, is the managing partner of Zero/Six and WH Coltzer International. As the son of a General Contractor, Bill grew up participating in the family construction business, he then went on to study Environmental Design at Texas A&M University, and in 1993 became a licensed architect. Having worked on some of the largest medical buildings in Texas, Bill has established Zero/Six as a premier building envelope consulting firm in this industry. As an Architect with an extensive background in construction, Bill brings a unique perspective into the construction process, which allows him to lead his team of Architects, Engineers, and consultants in a revolution to maximize the performance, cost savings, and longevity of buildings.

Projects & expertise


Higher Education – New Construction

Higher Education – Renovation / Expansion / Forensic


Healthcare – New Construction

Healthcare – Renovation / Expansion / Forensic

Condo / Hotel / Office – New Construction

Facility Asset Management

Years of Experience

  • 44 years in Industry
  • 21 years with Zero/Six

Home Office

1027 23rd Street Rear,
Galveston, TEXAS,
United States
+1 409-740-0090


Bachelor Of Environmental design,
Texas a&m university

Years of Experience

  • 31 years in construction
  • 21 years as an Architect
  • 13 years with Zero/Six
  • Delivering Excellence 

Professional Registerations

  • Texas Architect No.14298
  • Registered

Professional Affiliations

  • American Institute of Architects
  • Texas Society of Architects
  • RCI
  • Building Commissioning Authority
  • Building Enclosure Council
  • ASTM
  • Committee member of ASTM E06
  • American Society for Healthcare Engineering


  • Registered roof observer with the roofing consultants institute
  • Certified 3rd party inspector for cetco manufacturing
  • osha 10 safety training
  • appropriate fall protection and elevated platform safety certifications