HVAC & Duct Cleaning Services

Shasta County Department of Support Services, Purchasing Division is requesting quotes for air duct cleaning services on an as-needed basis for various County buildings under an RFQ with a proposal deadline of September 30, 2026 at 2:00 p.m. Respondents must hold a current California Contractor's License with C-20 classification and be certified members of the National Air Duct Cleaners Association (NADCA) with at least one certified air systems cleaning specialist — mandatory qualifications that filter the competitive field.

The scope encompasses labor, equipment, and materials for air duct cleaning across multiple County facilities, performed at the County's written direction. No single project shall exceed $75,000; projects cannot be artificially split to circumvent this threshold. Pricing must incorporate all labor, materials, equipment, travel, and overhead costs based on prevailing wage rates for Shasta County, including daily overtime and weekend/holiday premium rates as specified.

The contract term is three years. Performance and labor bonds are required for all projects totaling $25,000 or more. Insurance requirements include Commercial General Liability coverage of $2 million per occurrence and $4 million aggregate, statutory workers' compensation, and builder's risk insurance.

Evaluation criteria are price (30%), experience (25%), staffing levels (20%), warranty on materials and workmanship (15%), and professional licenses and DIR registration (10%). The County reserves the right to reject all responses and is not obligated to award to the lowest bidder. Questions are due September 14, 2026. Responses must be submitted electronically through the County's e-Procurement Portal. No site visits or bidders' conferences are scheduled.