UNSPSC 30151802: Siding

UNSPSC 30151802 Siding, a Commodity code, covers exterior cladding materials and installation services that state and local governments procure for building envelope repair and replacement. Recent solicitations show the code captures work combining siding removal, new material installation (vinyl, Hardie Plank, asphalt shingles), and associated envelope work such as soffit, fascia, gutter, and downspout replacement, often bundled with exterior painting and surface preparation. Issuing bodies include municipal planning and public works departments, county boards of commissioners managing facility maintenance, and municipal development authorities overseeing housing assets. The work requires licensed or experienced general contractors and typically involves hazardous material handling protocols when existing siding contains asbestos or other regulated substances.

The code shows recent activity in Connecticut, Georgia, and Wisconsin. The Town of Groton, Connecticut posted ITB 2708 in July 2026 for Spicer Rowing Barn roof replacement and exterior painting (sealed bids due August 20, 2026), encompassing roof tearoff, new shingles, gutters, downspouts, and barn painting with compliance to state hazardous waste disposal rules. The White County Board of Commissioners in Georgia issued a proposal request in July 2026 for EMS Ambulance Garage repairs involving termite-damaged stud walls, interior paneling removal, and Hardie Plank Lap Siding installation with painting (proposals due July 31, 2026), requiring a mandatory pre-proposal meeting and performance/payment bonds at 100 percent of contract value. The City of Madison, Wisconsin's Community Development Authority solicited bids in June 2026 for Karabis Apartments painting and siding work under RFB 15051-0-2026-AH (bids due July 17, 2026), subject to Davis-Bacon prevailing-wage compliance and including gutter, downspout, soffit, fascia, and caulking work. All three opportunities specify lump-sum or fixed-price formats, insurance requirements ranging from $1 million to $1.5 million in general liability, and expedited completion windows of 30 to 60 days.