Glass and Glazing Contractors NAICS 238150

        Glass and Glazing Contractors

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Industry Summary

The 6,500 glass and glazing contractors in the US install glass panes in prepared openings and perform other types of glass work for buildings. Projects include new installations, additions, alterations, maintenance, and repairs. Smaller operators generally specialize in residential projects and emergency glass repair. Commercial projects include interior projects, such as the installation of decorative room dividers, and exterior projects, such as the replacement of storefront windows.

Dependence On The Construction Industry

Demand for glass and glazing services is highly dependent on the health of the construction industry, which is cyclical and influenced by economic conditions.

Specialized Labor Shortage

Glass and glazing contractors struggle to find qualified glaziers, who are workers that cut glass and perform the physical installation process.


Recent Developments

Jan 7, 2026 - Window and Door Spending to Rise
  • US construction spending on windows and doors is expected to post solid annual growth in 2026, according to FMI's most recent Building Products Market Overview report. In 2026, spending on residential doors and windows is forecast to increase by 2% over 2025 and nonresidential door and window spending is projected to grow by 2.9% over the same period. Demand for doors and windows used in new construction is being driven by updates to energy efficiency codes for both residential and nonresidential markets. The aging of the US housing supply is expected to boost demand in the residential market. Longer term, US door and window spending is forecast to have a compound annual growth rate (CAGR) of 6.2% between 2025 and 2029. However, like other subcontracting industries, window and door installers face a skilled labor gap as more experienced workers retire.
  • The total value of nonresidential building construction starts in November fell 13.4% compared to October, according to Dodge Construction Network. Commercial starts declined 25.8. Office and data center starts dropped 40.5% and hotels were down 33.2%. Nonresidential building segments that posted growth in November included parking garages (+32.1%), retail stores (+8.3%), and warehouses (+6.4%). Institutional starts grew 11.4% as gains in public and education building starts offset declines in amusement and dormitories. Manufacturing starts remained volatile in November, declining 50.7% from October levels.
  • Home builder confidence in the single-family market increased in December but remained solidly in negative territory as builders face ongoing headwinds, including high construction costs, tariffs, and economic uncertainty, according to the National Association of Home Builders (NAHB). Home builder sentiment, as measured by the NAHB/Wells Fargo Housing Market Index (HMI), rose one point to 39 in December 2025. Any HMI reading over 50 indicates that more builders see conditions as good than poor. Builder confidence readings remained below 50 for every month in 2025 and were in the high 30s in the fourth quarter. The HMI survey also showed that 40% of builders reduced home prices in December to lure potential buyers off the sidelines, and the average price reduction was 5%, down one percentage point from November.
  • Demand for building design services declined in November from the prior month, marking the thirteenth consecutive month of weak architectural billings, according to a December report by the American Institute of Architects (AIA). The AIA’s Architecture Billing Index (ABI) fell to 45.3 compared to October's reading of 47.6. Any reading of 50 or more indicates growth in architectural billings. The score for new project inquiries fell to 51.4 in November from 54.8 in October, and the new design contracts index dropped to 42.7 from 47.1. The AIA’s Chief Economist, Kermit Baker said, "Weakness in business conditions at architecture firms continues to be widespread, with declining billings across all major specializations and in every region except the Midwest. However, inquiries for new projects continued to increase, and design activity at firms in the Midwest – a region that traditionally has had a disproportionate share of manufacturing activity – appears to have hit its bottom for this cycle and is expected to continue to improve."

Industry Revenue

Glass and Glazing Contractors


Industry Structure

Industry size & Structure

The average glass and glazing contractor operates out of a single location, employs 11 workers, and generates about $2.8 million in annual revenue.

    • The glass and glazing contracting industry consists of about 6,500 firms that employ about 74,200 workers and generate $18.1 billion annually.
    • Small, independent companies operate within a limited geographical market.
    • Large firms that manufacture, design and install building exteriors, such as aluminum curtain walls, stone, and composite panels, often also work with glass products.
    • Large firms include Harmon, Karas and Karas Glass, and Giroux Glass.

                              Industry Forecast

                              Industry Forecast
                              Glass and Glazing Contractors Industry Growth
                              Source: Vertical IQ and Inforum

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