NAICS 238170 Quarterly Industry Report
Siding Contractors
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 238170Sector: Construction (23)Updated: Q1 2026
About This Report
This industry profile for Siding Contractors (NAICS 238170) draws on data from the U.S. Census Bureau[4], Bureau of Labor Statistics[7], and SBA size standards database[5]. Published by Fair Market Value and updated quarterly, it provides valuation professionals, exterior cladding trade analysts, and specialty construction investors with current market data. All quantitative claims are sourced to publicly verifiable databases.
Industry Definition & Overview
Siding Contractors (NAICS 238170) encompasses establishments primarily engaged in installing siding of wood, aluminum, vinyl, or other exterior finish material (except brick, stone, stucco, or curtain wall) per the U.S. Census Bureau[3]. Work performed includes new construction, additions, alterations, maintenance, and repairs. Gutter and downspout installation is also included when performed in connection with siding work. This classification excludes masonry siding (NAICS 238140), stucco application (NAICS 238140), and curtain wall installation (NAICS 238190).
Roughly 2,310 firms employ 35,249 workers generating $6.7 billion in revenue with $1.5 billion in annual payroll per Census Bureau[4] economic survey data. Vinyl siding remains the most widely installed material for residential applications, though fiber cement, engineered wood, and insulated siding products have gained market share in recent years. Residential re-siding and new home construction drive the majority of work volume. Many siding contractors also perform window and door trim installation, soffit and fascia work, and exterior insulation finishing as part of the building envelope scope. The Polymeric Exterior Products Association (PEPA, formerly the Vinyl Siding Institute) promotes standards and installer certification for polymeric cladding products.
Per the SBA Table of Size Standards[5], the size standard is $19 million in average annual receipts. International Residential Code (IRC) and International Building Code (IBC) establish exterior wall covering requirements for weather resistance and fire performance. OSHA[6] construction safety standards under 29 CFR 1926 apply to siding installation, with fall protection and ladder safety representing the most common safety requirements for exterior cladding work at elevation. ASTM International publishes material testing standards for vinyl siding (ASTM D3679), aluminum siding, and fiber cement products that govern product quality and installation specifications.
What's Included in This Industry
- Vinyl siding installation and replacement
- Fiber cement siding installation
- Wood and engineered wood siding installation
- Aluminum and metal siding installation
- Insulated siding systems
- Soffit, fascia, and trim installation
- Gutter and downspout installation
- Exterior insulation and finish systems (EIFS) related to siding
- House wrap and weather barrier installation
- Siding repair and re-siding services
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Sector | Construction | 23 |
| Subsector | Specialty Trade Contractors | 238 |
| Industry Group | Building Foundation And Exterior Contractors | 2381 |
| NAICS Industry | Siding Contractors | 23817 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 236115 | New Single-Family Housing Construction (except For-Sale Builders) | New Single-Family Housing Construction represents a primary customer base for siding contractors, with homebuilders subcontracting siding installation as part of the exterior finish trade scope on every new residential construction project requiring manufactured exterior cladding |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | Washington | 6.7% | 614 |
| 2 | Florida | 6.7% | 614 |
| 3 | New York | 5.5% | 504 |
| 4 | Illinois | 5.4% | 493 |
| 5 | Minnesota | 4.5% | 417 |
| 6 | North Carolina | 4.3% | 399 |
| 7 | Wisconsin | 3.6% | 328 |
| 8 | California | 3.5% | 326 |
| 9 | Pennsylvania | 3.4% | 310 |
| 10 | Virginia | 3.3% | 299 |
% Of Establishments
0%
7%
Source: County Business Patterns, U.S. Census Bureau[1]
SBA Lending Summary
464
Total SBA Loans
$170.8M
Total Loan Volume
$368K
Average Loan Size
10 yrs
Average Loan Term
10.94%
Average Interest Rate
2,632
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[2]
Key Insight: Per the SBA Table of Size Standards[5], Siding Contractors (NAICS 238170) has a size standard of $19 million in average annual receipts for federal contracting purposes. SBA lending programs[8] support equipment purchases, vehicle fleets, and working capital for qualifying siding installation firms. Eligible businesses can access SBA 7(a) loans[9] for working capital, equipment, and acquisition financing, while 504 loans[10] support major fixed-asset purchases including real estate and heavy machinery.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Manufacturers and Traders Trust Company | 64 | $41.7M | $652K |
| 2 | Bank of America, National Association | 8 | $39.6M | $5.0M |
| 3 | First Bank of the Lake | 48 | $20.5M | $427K |
| 4 | Northwest Bank | 16 | $17.1M | $1.1M |
| 5 | Magnifi Financial CU | 24 | $5.9M | $246K |
Frequently Asked Questions
Common questions about this industry.
What is the NAICS code for siding contractors?
NAICS 238170 covers siding contractors installing vinyl, wood, fiber cement, aluminum, and other manufactured exterior cladding materials per the U.S. Census Bureau[3], excluding brick, stone, and stucco.
What is the SBA size standard for siding contractors?
The SBA size standard[5] is $19 million in average annual receipts, determining eligibility for federal small business contracting programs and SBA lending products.
How large is the siding contracting industry?
Roughly 2,310 firms employ 35,249 workers generating $6.7 billion in revenue per Census Bureau[4] economic survey data, with residential re-siding and new home construction driving the majority of installation volume.
What is the most popular siding material?
Vinyl siding remains the most widely installed residential siding material per industry installation data, though fiber cement products have gained considerable market share due to their durability, fire resistance, and ability to replicate wood grain textures and profiles.
What building codes govern siding installation?
International Residential Code (IRC) and International Building Code (IBC) establish exterior wall covering requirements for weather resistance and fire performance, with ASTM D3679 governing vinyl siding product quality and ASTM standards for fiber cement and metal siding products.
What safety requirements apply to siding work?
OSHA[6] fall protection and ladder safety standards under 29 CFR 1926 apply to siding installation at elevation, with proper scaffold setup, ladder positioning, and personal fall arrest equipment required when working above regulated heights on exterior walls.
What is fiber cement siding?
Fiber cement siding is a manufactured cladding product made from portland cement, sand, and cellulose fiber that provides fire resistance, rot resistance, and dimensional stability per ASTM standards, with James Hardie and similar brands offering lap siding, panel, and shake profiles for residential and commercial applications.
Do siding contractors install gutters?
Gutter and downspout installation is included within this classification when performed in connection with siding work per Census Bureau[3] guidelines, with many siding firms offering continuous gutter fabrication and installation as a complementary exterior finish service.
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Census Bureau, County Business Patterns census.gov
- [2]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [3]U.S. Census Bureau census.gov
- [4]Census Bureau data.census.gov
- [5]SBA Table of Size Standards sba.gov
- [6]OSHA osha.gov
- [7]Bureau of Labor Statistics bls.gov
- [8]SBA lending programs sba.gov
- [9]SBA 7(a) loans sba.gov
- [10]504 loans sba.gov
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