Search 22 U.S. and Canadian government cleaning services contracts for bid in Allegheny County (PA) that GovWin IQ is tracking. For inquiries about requests for bids and proposals for contractor and consultant services, call 412-350-5914. Resources.Proposers must complete the required services Unit Cost Spreadsheet. Construction contractors interested in performing construction contracts with the department must first complete the Vendor Registration process. Bid proposals are requested on behalf of the City of Pittsburgh. Cleaning and Janitorial Services.