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There shall be various classes of contractor licenses, and the holder thereof shall be authorized to perform the following:

(1) Commercial building contractor. To erect, add to, alter, demolish or repair any building or structure. Scope of allowable work also includes: fences over seven feet; roofing of all types and on all buildings; solar energy installations; hook, set and tie for construction and sales trailers on commercial and residential properties; racking and storage systems; other work as approved by the chief building official.

(2) Residential building contractor. To erect, add to, alter or repair any International Residential Code (IRC) defined group R-3 or any group U occupancy building. Scope of allowable work also includes: decks; patio covers; carports; roofing of R-3 and group U buildings only; sunrooms; fences; seasonal use rooms; sheds; residential garages (i.e., group U); residential solar energy installations; hook, set and tie for construction and sales trailers on residential properties; and other work as approved by the chief building official.

(3) Roofing contractor. Installation, repair, and removal of all types of roof coverings on all building types. Scope of allowable work includes: installation of all types of roofing materials; valleys; gutters and downspouts; residential siding; other work as approved by the chief building official.

(4) Swimming pool contractor. Installation of all types of swimming pools (commercial and residential), and hot tubs (except utilities).

(5) Fire alarm systems contractor. To install, add to, alter or repair fire alarm systems of all types.

(6) Fire extinguishing systems contractor. To install, add to, alter or repair all types of fire extinguishing systems, including commercial hood and duct systems; wet chemical systems; dry chemical systems; foam systems; carbon dioxide systems; halon systems; clean agent systems; automatic water mist systems; commercial cooking systems.

(7) Fire sprinkler systems contractor. To install, add to, alter or repair automatic fire sprinkler and standpipe systems of all types.

(8) Underground fire service line contractor. To install, add to, alter or repair approved underground fire service lines.

(9) Fuel tank contractor. To install, remove, alter or repair aboveground (AST) or underground (UST) fuel storage tanks.

(10) Emergency responder radio systems contractor. To install, remove, alter or repair approved emergency responder radio coverage systems.

(11) Mobile home installer. Installation of mobile homes, including leveling, blocking, skirting, electrical, gas, water and sewage connection and permitted accessory items.

(12) Remodeling contractor. Nonstructural work and repairs on single-family dwellings, including siding removal and installation; basement finish work; nonstructural metals for all types of buildings or structures such as guardrails, handrails, stair replacements; other work as approved by the chief building official.

Scope of excluded work from this license includes, but is not limited to: any load bearing or structural building elements such as columns, joists, beams, trusses, girders or similar structural components; fire rated walls or partitions; decks; balconies; patio covers; roofing; pergolas; ramps; sun shades or canopies; carports; sunrooms; fences; seasonal use rooms; sheds; residential (group U) garages; solar energy installations; hook, set and tie for construction and sales trailers on residential properties.

(13) Demolition contractor. To demolish any building, structure or utilities or portion thereof except fuel storage tanks. A commercial building contractor is allowed to demolish any building type allowed to be built under that license; a residential building contractor is allowed to demolish residential buildings allowed to be built under that license.

(14) Sign contractor. To fabricate, install, erect or maintain all types of signs except electrical wiring and connections which must be installed by a state of Colorado licensed electrical contractor.

(15) Mechanical systems contractor. In all building types, the installation, removal, alteration, or repair of all types of heating and cooling systems. Scope of allowable work includes: warm air heating, venting, evaporative and refrigeration cooling, exhaust systems and their appurtenances; steam and hot water systems; process piping and related accessories; fuel gas piping; refrigeration systems and related accessories; other mechanical work as approved by the chief building official.

(16) Residential elevator contractor. To install, add to, alter or repair elevators, escalators, moving walks and ramps and dumbwaiters located in single-family homes.

(17) Right-of-way contractor. The holder of a public right-of-way contractor license shall be licensed for all types of concrete construction; replacement or repair of all types of concrete work that is in or will be in the public right-of-way; for all types of asphalt construction, replacement or repair of all types of asphalt paving that is in or will be in the public right-of-way; for all types of excavation work, including but not limited to water mains, sanitary sewer mains, storm sewer mains, underground TV cable lines, water or sewer service lines, petroleum transmission lines and natural gas lines that will be placed in the public right-of-way; for all types of grading and earthwork, including fills, embankments, subgrade preparation and gravel base course construction, that are in or will be in the public right-of-way.

(18) Limited building commercial contractor. To install storage racks; art structures; fences; commercial solar systems; commercial prefabricated shade structures; bollards; construction trailers; other work as approved by the chief building official. (Ord. No. 2021-65, § 8, 12-6-2021; Ord. No. 2016-25, § 2, 7-11-2016; Ord. No. 2011-02, § 3, 2-28-2011; Ord. No. 2006-78, § 1(Exh. A), 1-8-2007)