Chicago Window Expert

Chicago Window Expert

Nobody Knows More About Windows
  • Facebook
  • Twitter
  • Linkedin
  • Youtube
  • 847-878-8922
  • mark@chicagowindowexpert.com
  • Home
  • About
  • Construction Expert Services
    • Consulting Services
      • Construction Consultant
      • Construction Forensic Investigation
      • Glass Consultant
      • Window and Curtainwall Consultant
    • Testing Services
      • Air Infiltration Testing
      • Condensation Testing
      • Insulating Glass Dewpoint Testing
      • Water Testing for Masonry
      • Water Testing for Windows and Curtainwalls
    • Expert Witness Services
      • Window Falls
      • Glass Injury
      • Insurance Claims
      • Construction Defect and Legal Claims
      • Glass Evidence in Crimes and Accidents
  • Standards
  • Projects
  • Factories
  • Photos
  • Articles
    • Windows and Curtainwalls
    • Glass
    • Masonry and Sealant
    • People
    • News
    • About
    • Recent Articles
  • Videos
  • Clients
  • Contact Us

Consultant to Architects, Engineers and Contractors

Chicago Window Expert provides consultant services to Architects, Engineers and Contractors Glazing industry experience about windows, glass and building facade

Read More❭

Testing and Failure Investigation

Water and air leaks, condensation, glass failure

Read More❭

Credible, Authoritative Expert Witness

Contract dispute, construction failures, injuries, window falls

Read More❭
❬ ❭

Photo search results

Click to schedule a free consultation

ABOUT

MARK MESHULAM LLC

MMLLC grew from Builders Architectural Products, a Deerfield, IL based contractor specializing in windows, curtainwalls and other engineered architectural glazed products. Mark Meshulam's 30 years as a subcontractor took place here. His positions included Sales Engineer, VP Operations, Executive VP, Director of Engineering and Owner.


For the past decade, Meshulam has provided the benefits of his building facade expertise to his clients as a consultant and expert witness.


Builders Architectural Projects

Download Mark Meshulam's CV

Services

Consulting Services

  • Construction Consultant
  • Construction Forensic Investigation
  • Glass Consultant
  • Window and Curtainwall Consultant

Testing Services

  • Condensation Testing
  • Water Testing for Windows and Curtainwalls
  • Water Testing for Masonry
  • Air Infiltration Testing
  • Insulating Glass Dewpoint Testing

Expert Witness Services

  • Window Falls
  • Glass Injury
  • Insurance Claims
  • Construction Defect
  • Crime Scene Evidence

Locations

US Locations

Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Illinois, Indiana, Iowa, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, New Jersey, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, Tennessee, Texas, Utah, Virginia, Washington, Washington DC, Wisconsin


Canada Locations

Alberta, British Columbia, Nova Scotia, Ontario


Overseas

Japan, Russia, Singapore

Contact Us

  • Northbrook, IL 60062
  • 847-878-8922
  • 312-462-4424 (FAX)
  • mark@chicagowindowexpert.com
  • Facebook
  • Twitter
  • Linkedin
  • Youtube
© 2026 Chicago Window Expert

ABOUT US - LATEST NEWS

1. Mark Meshulam LLC owns two websites:

www.chicagowindowexpert.com is geared toward smaller and residential properties, and also targets the Chicago market for our facade repair/general contracting division. Mark Meshulam LLC is a licensed General Contractor in Chicago, Licence Number TGC146041.

www.facadeconsultants.com speaks to larger projects including high-rise, large multi-family, institutional and military projects in the United States and internationally.

2. Mark Meshulam LLC has experienced extroardinary success on cases where Expert Witness services were provided. Favorable settlements and judgements have recently occurred in Chicago IL, Cleveland OH, Ledyard CT, San Antonio TX, Hollywood FL, San Francisco CA, Williston ND, Seaside OR and Houston TX.

3. Mark Meshulam recently presented a talk to the Chicago Committee on High Rise Buildings. The topic: Facade Testing. The presentation was well received. It included rare footage of the original pioneer of facade testing A.A. "Sak" Sakhnovsky. Meshulam is available for speaking engagements on a variety of topics related to building facades and construction.

Contact Us

Never see this message again.

Discuss Your Project

[contact-form-7 id="6659" title="Contact Us"]

Request A Free Consultation

[contact-form-7 id="6888" title="Free Phone Consultation" rest_api=false]