How to Bid Commercial Cleaning Jobs: Step-by-Step Formula

DEFINITION

ISSA 612 Standard

The cleaning time standard published by the Worldwide Cleaning Industry Association. It defines how many square feet a single cleaner can complete per hour for specific tasks — vacuuming, mopping, restroom cleaning, and others. Used to calculate labor hours in commercial cleaning bids.

DEFINITION

Production Rate

How much area a single cleaner can clean per hour for a given task. Expressed in square feet per hour (e.g., vacuuming open-plan carpet: 3,000-5,000 sq ft/hour). Dividing total area by production rate gives the labor hours required per visit.

DEFINITION

Scope of Work

The written document in a cleaning contract that lists every task, area, and frequency included in the agreement. Bids are built from the scope of work. Tasks outside the scope cannot be billed without a change order.

Why Most Cleaning Bids Go Wrong

The most common bidding mistake isn’t charging too little per square foot — it’s underestimating labor hours. A flat $0.12/sq ft on a 20,000 sq ft account looks reasonable until you realize the building has 15 restrooms, polished terrazzo floors, and a medical-grade disinfection requirement. The labor doesn’t match the flat rate.

The fix is calculating labor from task-level production rates, not working backward from a price-per-square-foot.

Step 1: Walk the Site and Measure Square Footage

A site walk takes 30-60 minutes for most commercial buildings. It’s not optional — every bid shortcut here costs you money.

What to document during the walk:

• Total square footage and breakdown by area type
• Floor types (carpet, VCT, polished concrete, hardwood)
• Number of restrooms and fixtures per restroom
• Kitchen or break room scope
• Frequency of high-touch cleaning (elevator buttons, door handles)
• Access restrictions or security requirements
• Current condition of floors (do they need stripping before regular service begins?)

Photograph problem areas. If a client disputes your scope later, your walk-through photos are your evidence.

Step 2: Build the Task List From the Contract Scope

The contract scope defines what’s included. If it’s not in the scope, it’s not in your bid — and if you perform work outside scope, you can’t bill for it without a change order.

For each area, list the tasks:

• Restrooms: scrub fixtures, disinfect surfaces, restock supplies, mop floor, empty trash
• Offices: vacuum carpet, dust surfaces, empty trash, wipe desks (or not, per scope)
• Common areas: vacuum or sweep, mop hard floors, clean glass entry doors
• Kitchen/break room: wipe surfaces, clean microwave interior, mop floor, empty trash

Task lists vary by building type. An industrial facility has different scope than a professional services office.

Step 3: Apply ISSA Production Rates

ISSA production rates are the industry standard for calculating how long cleaning tasks take. Common benchmarks:

• Vacuuming open-plan carpet: 3,000-5,000 sq ft/hour
• Damp mopping hard floors: 2,500-4,000 sq ft/hour
• Restroom cleaning: measured per fixture (toilet, sink, urinal)
• Trash removal: measured per stop

Your actual rates will vary based on building layout, obstruction density, and your crew’s experience. Use ISSA rates as a starting baseline, then adjust from your own job records over time.

Step 4: Calculate Total Labor Hours

Once you have task hours for each area, sum them and apply a buffer:

• 10% buffer for setup, pack-up, and supply restocking
• 15% buffer for first-month learning curve on a new account

Monthly labor hours = (hours per visit x visits per month) x (1 + buffer %)

Step 5: Use a Fully-Loaded Labor Rate

Your bid must cover:

• Cleaner hourly wage
• Payroll taxes (typically 7.65% for employer FICA)
• Workers compensation insurance
• Any benefits or PTO accrual

If a cleaner earns $18/hour, the fully-loaded cost is commonly $23-$28/hour. Using $18 in your bid calculation means you’re absorbing $5-$10/hour in hidden costs.

Step 6: Add Materials and Overhead

Materials: For standard commercial accounts, chemicals and consumables run 5-10% of labor cost. Higher for medical or food-service accounts.

Overhead allocation: Calculate your fixed monthly overhead (insurance, vehicles, equipment, software, management time) and express it as a percentage of revenue. This overhead percentage goes into every bid.

Step 7: Apply Margin and Present the Proposal

Add your target margin to the cost total. Present the monthly price — not a breakdown of your labor calculation. Clients don’t need to see your cost structure.

Your proposal should include:

• Monthly price (total)
• Scope of work (task list by area)
• Visit frequency
• Explicit exclusions (what’s not included)
• Contract term and notice requirements

A professional PDF with your logo, the client’s address, and a signature line is the minimum standard for commercial accounts.

Pricing Benchmarks

Per Housecall Pro’s pricing guide, most commercial cleaning jobs are priced at $0.07-$0.25 per square foot or $30-$90 per hour. These ranges are broad because task complexity drives the number. Use them as a sanity check, not a formula.

If your calculated price is significantly outside this range, check your production rates and overhead assumptions before assuming the market is wrong.