Labor and materials for HVAC system cleaning per attached specifications. All interested bidders must attend a mandatory pre-bid meeting, March 31st at 1:00 PM at the DPS Headquarters Bldg. A lobby located at 5805 N. Lamar; Austin, Texas 78752. Failure to attend the mandatory pre-bid meeting will result in the disqualification of bidders bid response. If directions are needed please contact the Building Program Bureau at (512) 424-2882.