How much does commercial cleaning cost in Denver?

You called three Denver cleaning companies for a quote and got three wildly different numbers for the same building. One came in at $600/mo, another at $1,800, a third at $3,400. Who's lying? Probably the first two. This post is the honest math on what commercial cleaning costs in Denver in 2026, why the cheap quotes don't survive 90 days, and how to write a scope that lets you actually compare bids.

The ranges by facility type

Every Denver commercial cleaning quote starts from three variables: facility type, square footage, and frequency. Everything else — restrooms, dock doors, carpet ratio — is a modifier. Here's what those three variables actually add up to on the invoice.

Office suites (3K–15K sqft)

• 1x/week, small office, minimal scope: $800–$1,200/mo
• 2x/week, mid-size (10K sqft), typical scope: $1,400–$2,000/mo
• 3x/week, 10K–15K sqft, typical scope: $1,800–$2,800/mo
• Nightly (5x/week), 10K–15K sqft: $2,500–$4,000/mo

Medical and dental offices (1.5K–8K sqft)

Medical runs 15–25% higher than a general office of the same size because the protocol is different — EPA List N disinfectants, color-coded microfiber to prevent cross-contamination, HIPAA-aware crew, and often after-hours scheduling. A 3,000 sqft dental practice at nightly frequency is usually $1,400–$2,000/mo in Denver. A 6,000 sqft multi-provider clinic at 3x/week lands $1,800–$2,500/mo.

Warehouses and distribution (10K–150K sqft)

• 15K sqft, 2x/week, typical office+dock scope: $1,600–$2,800/mo
• 25K sqft, 3x/week, 4 restrooms + break room: $2,400–$4,500/mo
• 50K sqft, 3x/week: $4,500–$9,000/mo
• 100K+ sqft, nightly, full scope: $10,000–$30,000/mo

Retail and light commercial (1K–5K sqft)

Small retail storefronts and service businesses at nightly frequency typically land $1,000–$2,000/mo. The $800/mo floor applies below that — under the floor, the admin burden of running the account (invoicing, insurance, QC spot-checks) eats the margin and the cleaner starts cutting corners. Which is how you end up with the $600 quote that falls apart.

The labor math behind the numbers

The reason those ranges exist is because commercial cleaning is a labor business with thin, fixed economics. Here is the actual math a legitimate Denver cleaner is running on every bid.

• Fully loaded labor cost per W-2 cleaner: $25.40/hr (base $22 + FICA 7.65% + workers comp 2.5% + unemployment 3% + supplies allocation)
• Supplies: 8–12% of labor cost
• Gross margin target: 55–65% (below that, the business can't cover insurance, office, vehicle, and owner pay)
• Typical weekly hours for 5,000 sqft office, 3x/week: 7–9 crew-hours/week
• Monthly labor cost: ~$900–$1,100
• Plus supplies (~$90–$110), that's a COGS of ~$1,000–$1,200
• At 60% gross margin, the bid lands $2,400–$3,000/mo

Run that math backwards on a $600/mo quote for a 5,000 sqft office and you can see why it can't be real. Either the cleaner is paying cash under the table (1099 misclassification — illegal in Colorado, you're liable as the client if CDLE audits), skipping supplies, skipping insurance, or all three. The bid exists to get the contract. The quality of the work is not the product.

What moves the price up or down

Same building, same frequency — here's what can move the bid by $500–$2,000/mo in either direction.

• Restroom count — each additional restroom adds ~15 min/visit of real time
• Floor type — carpet vacuums faster than tile-and-grout mops
• Dock doors — more dock doors = more edge-detail on the warehouse scope
• After-hours vs business-hours scheduling — after-hours commands a small premium in some markets (not in Denver, but some crews charge it)
• Photo-QC and written scope — not a price increase, but a signal that the cleaner is running a real business, which tends to land them in the upper-middle of the range
• Frequency multiplier — going from 2x to 3x/week is a 50% price increase, not 33%, because fixed costs (drive time, setup) amortize over more visits

How to write a scope that gets comparable bids

If you're getting three bids for the same building and they range from $800 to $3,200, it's because the cleaners are quoting three different scopes. Write a one-pager before you call anyone. Four things:

1. Facility size (breakdown by warehouse/office/restroom/breakroom sqft)
2. Frequency (1x/week, 2x/week, 3x/week, nightly)
3. Hours window (nightly after 6 PM? daytime 9–5? weekend only?)
4. Must-have tasks (restroom restock, trash pulls, carpet vacuum, hard-floor mop, touch points, dock sweep — whatever applies)

Send that one-pager to every cleaner you're quoting. The bids that come back will be comparable. The cleaners who refuse to bid off a written scope — who insist on quoting 'trust us, we'll figure it out' — are filtering themselves out.

What a fair Denver bid looks like on a 5,000 sqft office

Concrete worked example for the most common commercial scope we see — a 5,000 sqft professional-services office on a 3x/week nightly schedule, 2 restrooms, 1 breakroom, carpet in the open office, tile in the restrooms.

• Crew: 1 cleaner, ~2.5 hrs/visit × 3 visits/week × 4.33 weeks = ~32.5 hrs/month
• Loaded labor: 32.5 × $25.40 = $825/mo
• Supplies: ~$85/mo
• True COGS: ~$910/mo
• At 60% margin, list price: ~$2,275/mo
• At 12-month commitment (6% discount): ~$2,140/mo

If you're getting quotes north of $2,800/mo for this, the cleaner is padding. If you're getting quotes under $1,500/mo, the cleaner is either cutting labor corners or cutting scope. Somewhere in the $1,900–$2,400/mo range is where a real Denver commercial cleaning bid should land on this building.

Get an instant estimate, then a real bid

We built an instant estimator on our homepage that uses the same math above — plug in your sqft and frequency, see a live price band. No email required. If the range looks reasonable, request a walk-through and we'll put the written scope in your inbox inside 48 hours. If it doesn't look reasonable, at least you now know what questions to ask the next three cleaners you call.