How to Bid on Commercial Cleaning Contracts
Commercial contracts are won or lost in the bid, and a lot of cleaning businesses either underbid out of eagerness or overbid out of guesswork. Here's how to actually build a competitive, profitable commercial bid.
Why Commercial Bidding Is Different From Residential Pricing
Residential pricing is usually a quick quote based on size and scope. Commercial bidding is a more formal process — often competitive, sometimes with multiple vendors bidding on the same contract — where the details of your proposal matter as much as the number itself.
Before You Bid: Walk the Space
Never bid a commercial space sight-unseen if you can avoid it. A walkthrough reveals real scope — square footage that doesn't match what you were told, specialized flooring, high-traffic zones, restroom count, and anything else that affects actual time and cost. Bidding off a verbal description alone is one of the most common sources of an underpriced, unprofitable commercial contract.
Build the Bid From Real Numbers, Not a Guess
- Calculate actual labor time based on the walkthrough — square footage alone isn't enough; restroom count, floor type, and traffic level all meaningfully change the time required
- Price in supplies and equipment specific to the space, not a generic estimate
- Include travel time and frequency in your cost basis, especially for multi-visit-per-week contracts
- Build in a reasonable margin — commercial contracts are often won on price, which makes it tempting to shave margin too thin just to win the bid, a mistake that shows up as an unprofitable contract for the length of the agreement
What to Include in a Commercial Proposal
- A clear, specific scope of service — exactly what's cleaned, how often, and what's explicitly excluded
- Your insurance and bonding information upfront, since commercial clients expect and often require this
- References or case studies from similar commercial accounts, if you have them
- Clear pricing structure (monthly flat rate is common for commercial) and payment terms
- A point of contact and communication process for issues or requests
Common Bidding Mistakes
- Underbidding to win the contract, assuming you'll "figure out" profitability later — this rarely works and often means quietly cutting corners to survive on the margin, which eventually shows up in service quality and risks the contract anyway
- Vague scope language that leads to disputes later about what was actually included
- Ignoring contract length and exit terms — a long-term contract at a bad rate is a bigger mistake than a short-term one, since you're locked into the margin for longer
Should You Always Bid the Lowest Price?
No — commercial clients, especially larger or more established ones, often weigh reliability, insurance, and professionalism alongside price, not price alone. A well-documented, professional bid at a fair (not rock-bottom) price frequently beats a cheaper, thinner proposal from a less established competitor.
After You Win
Deliver exactly what the bid promised from the first visit — commercial accounts are a meaningful, often recurring revenue source, and the fastest way to lose one is a gap between what was promised in the bid and what actually shows up.
Bottom Line
A strong commercial bid comes from an actual walkthrough, real cost math, and a clear written scope — not a quick number pulled from square footage alone.
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