All correspondence must be made through the Vendor Portal. Specifications include, but are not limited to: This is a fixed price per quarter (4 times per year) bid to provide all required preventative maintenance services on Dept. of Labor 500 & 550 buildings’ HVAC fluid coolers, boiler & heating equipment. In addition, fixed hourly rates are identified for any repair services needed. All costs are to be all inclusive (including time, travel, and materials). Bidders shall provide their proposed costs below. Prices submitted on the cost proposal form, once accepted by the State, shall remain fixed. Hourly rate cost for repairs that may be needed on HVAC equipment. There is no guarantee regarding the number of hours that will be used. These rates are fixed for the term of the contract. Contractor must obtain NDOL’s written approval prior to completion of repair services.