Hardware, Plumbing & HVAC Distributors NAICS 4237

        Hardware, Plumbing & HVAC Distributors

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Industry Summary

The 9,400 hardware, plumbing, and HVAC/R distributors in the US consolidate a variety of products from many different manufacturers to offer customers wide selection, reasonable prices, and a single point of contact. Distributors may sell a combination of product categories or specialize.

Construction Drives Demand

Hardware, plumbing, and HVAC distributors depend on construction projects as major sources of revenue.

Consolidation Continues

Distributors continue to expand into new industries and geographical markets or gain market share via acquisitions.


Recent Developments

Aug 22, 2025 - Single-Family Housing Starts, Permits Rise
  • The number of building permits issued for single-family, privately-owned housing units increased 0.5% month-over-month but fell 7.9% year-over-year in July 2025. Single-family housing starts grew by 2.8% month-over-month and increased 7.8% year-over-year in July. Homebuilding and planning activity improved in July despite continued high interest rates and economic uncertainty, according to Reuters. The Federal Reserve has held back on interest rate cuts amid concerns that the Trump administration’s tariff policies could reignite inflation. However, recent signals of emerging softness in the labor market have many investors anticipating that the Fed will announce a quarter percentage point cut to interest rates at its meeting in September, which helped ease mortgage rates in August.
  • Construction spending for nonresidential buildings is expected to remain sluggish in 2025 and 2026, according to the American Institute of Architects’ (AIA) Consensus Construction Forecast released in July. Total spending for nonresidential building construction is expected to rise 1.7% in 2025 and 2% in 2026 after increasing 2% in 2024. For the next two years, growth will be led by data centers. Spending on institutional projects should remain steady as they are less susceptible to cyclical factors. AIA Chief Economist Kermit Baker said, “A multitude of factors are preventing substantive growth in nonresidential construction. Stubbornly high long-term interest rates, falling consumer confidence scores, rising tariff rates for many inputs to construction and construction labor shortages exacerbated by restrictive immigration policies are limiting prospects for positive sustained growth.”
  • The Trump administration’s proposed $27 billion cut to federal rental assistance programs - amounting to a 43% reduction - has triggered concern across the affordable housing sector, stalling projects and shaking lender confidence, according to The Wall Street Journal. Some developers have halted construction due to postponed Section 8 subsidies, while lenders cite uncertainty over HUD funding as a significant deterrent. Although the House Appropriations Committee rejected the overhaul, HUD continues lobbying for the cuts, which would slash its budget by 44%. Critics warn that the move could destabilize the housing system, jeopardizing billions in multifamily loans and undermining gains from recent tax law changes that expanded the Low-Income Housing Tax Credit. Despite these incentives, developers argue that new affordable units may lack the operating revenue to remain viable without voucher programs.
  • The Dodge Momentum Index (DMI) increased 20.8% in July 2025 to 280.4 (2000=100), up from the revised June reading of 232.1. The Momentum Index is a monthly measure of the first (or initial) report for nonresidential building projects in planning, which has been shown to lead construction spending for nonresidential buildings by a full year. On a monthly basis, the commercial planning component improved by 14.2% and the institutional component increased by 35.1%. Dodge’s associate director of forecasting, Sarah Martin, said, “Planning data skyrocketed in the month of July on the back of several large projects entering the planning queue for data centers, research & development labs, hospitals and service stations. Combined with more organic momentum in planning for hotels, warehouses, and recreational projects, cumulative activity drove record highs in the DMI. After months of wait-and-see due to tariff uncertainty, owners and developers have begun to move forward with projects and assumed higher costs for them. As economic and fiscal uncertainty remains prevalent, volatility in planning activity will remain elevated.”

Industry Revenue

Hardware, Plumbing & HVAC Distributors


Industry Structure

Industry size & Structure

A typical hardware, plumbing, HVAC and refrigeration distributor operates out of a single location, employs about 33 workers, and generates $30.2 million annually.

    • The hardware, plumbing, and HVAC/R distributor industry consists of 9,400 companies, employs 315,000 workers, and generates about $284.4 billion annually.
    • Most distributors are small, independent operations - 52% operate out of a single location and 79% have fewer than 20 workers.
    • Customers include building contractors, residential and commercial builders, dealers, hardware retailers, government accounts, and industrial and institutional customers.
    • Large companies include Ace Hardware, Ferguson, MRC Global, Hajoca, Watsco, DNOW (formerly NOW Inc.), and HD Supply.

                              Industry Forecast

                              Industry Forecast
                              Hardware, Plumbing & HVAC Distributors Industry Growth
                              Source: Vertical IQ and Inforum

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