Bid guide

How to bid on rail car pre-filter cleaning for Chicago Transit Authority

Chicago Transit Authority Chicago, ILCloses August 26, 2026

What the CTA is buying and why it matters

The Chicago Transit Authority (CTA) is seeking bids for cleaning and repair services for rail car pre-filters. This contract will cover a period of up to 36 months. This is a re-bid, indicating a renewed effort to secure these essential services. For vendors, this represents a stable, long-term opportunity to provide critical maintenance for public transportation infrastructure.

Key dates and what happens at the deadline

The deadline for submitting bids is August 26, 2026, at 6:00 PM ET. This is a firm deadline, and all responses must be submitted exactly as directed by the solicitation before this time. Late submissions will likely not be considered.

Who this opportunity suits

This opportunity is suitable for businesses specializing in industrial cleaning, filter maintenance, or repair services, particularly those with experience handling components for large-scale transportation equipment. Firms with expertise in facilities maintenance within the rail or transit sector would be well-suited for this Invitation for Bids (IFB). The category for this work is facilities.

How to respond to this solicitation

To access the full solicitation details and documents, you need to go to the City of Chicago Vendor & Contract Search portal. Once there, review the specification, contact information, and any addenda. For eProcurement bids, documents are linked to the city's iSupplier portal. You must submit your bid precisely as instructed in the solicitation before the response due date.

Tips for preparing a competitive response

Since this is an Invitation for Bids (IFB) and described as non-negotiable, it is crucial to ensure your bid is complete and accurate. Pay close attention to all specifications and requirements outlined in the solicitation documents. Double-check all pricing and service details to ensure they align perfectly with the CTA's needs. Any deviations or missing information could lead to your bid being disqualified. Focus on demonstrating your capability to provide reliable and high-quality cleaning and repair services for rail car pre-filters.

See the live bid — deadline, agency details, and how to respond

Dates and requirements can change via addenda; always verify on the bid page and at the original source before responding.

View this bid on BiddingSimple

This guide was prepared by BiddingSimple from the solicitation’s public posting. It is not official guidance from Chicago Transit Authority; the original posting controls.