A 40,000 sf medical office building in suburban Phoenix generates cleaning bids that cluster $0.55–$0.80 per square foot per year above comparable general office space in the same submarket. That premium is not discretionary. It reflects the exam-room terminal-clean protocol, the OSHA bloodborne pathogen compliance obligation on every crew member, the sharps disposal coordination, and the restroom-to-square-foot ratio that runs 40–60 percent higher in an MOB than in a corporate office. A BSC who prices an MOB like a Class B office building will lose money by month four.
Typical Price Bands by Facility Size and Frequency
Ranges below reflect 2024–2025 market data calibrated against IFMA Operations and Maintenance Benchmarks and AHE healthcare productivity guidance for non-acute clinical environments. They assume 5-night cleaning with nightly exam-room detail and no day porter.
| Facility Size | 5 Nights/Week | 6–7 Nights/Week | Day Porter Add |
|---|---|---|---|
| Under 15,000 sf | $1.95–$2.60/sf/yr | $2.30–$3.10/sf/yr | $0.35–$0.55/sf/yr |
| 15,000–40,000 sf | $1.65–$2.20/sf/yr | $1.95–$2.60/sf/yr | $0.28–$0.42/sf/yr |
| 40,000–100,000 sf | $1.45–$1.90/sf/yr | $1.70–$2.25/sf/yr | $0.22–$0.35/sf/yr |
Multi-tenant MOBs where the BSC services both common areas and individual suite interiors under separate line items will see these ranges split, with common-area cleaning priced closer to general office rates and suite-interior cleaning carrying the clinical premium.
Labor Productivity: Clinical vs Non-Clinical Zones
MOB cleaning distinguishes between clinical zones (exam rooms, procedure rooms, labs) and non-clinical zones (corridors, lobbies, private offices, break rooms). Production rates differ substantially. The rates below are benchmarked against ISSA 447 Cleaning Times and AHE clinical zone productivity targets.
| Zone / Task | Production Rate | Clinical Premium |
|---|---|---|
| Exam room, nightly detail | 14–20 min/room | High (vs 4–6 min office) |
| Restroom, clinical grade | 18–25 min/restroom | Medium-high |
| Common corridor, dust mop | 3,800–4,800 sf/hr | None |
| Waiting room, vacuum/wipe | 900–1,400 sf/hr | Low-medium (high-touch surfaces) |
| Lab pass-through, disinfect | 20–30 min/room | Very high |
The exam-room protocol drives the most significant labor deviation from office norms. Each exam room requires surface-level disinfection of the table, counter, sink, and all high-touch points using an EPA-registered hospital-grade disinfectant with documented contact time, not a wipe-and-move approach. At 16 minutes per exam room and 20 exam rooms in a 30-provider MOB, that single task line consumes 5.3 hours of labor nightly before restrooms, corridors, or labs are touched.
Line-Item Cost Build: 30,000 sf MOB, 5 Nights/Week
The following build uses the BLS OEWS 2024 SOC 37-2011 wage base with a 35 percent load for FICA, workers' comp (healthcare-setting premium), and benefits. OSHA bloodborne pathogen training and PPE are itemized separately as they are often overlooked in first-pass MOB bids.
| Cost Line | Calculation | Monthly Total |
|---|---|---|
| Direct labor, nightly cleaners | 2.8 FTE × $27.50/hr loaded × 173 hrs/mo | $13,321 |
| Working supervisor allocation | 0.5 FTE × $32.00/hr loaded × 173 hrs/mo | $2,768 |
| Hospital-grade disinfectants | $0.022–$0.028/sf/mo × 30K sf | $660–$840 |
| Microfiber program (color-coded) | Replacement + laundry | $180–$260 |
| OSHA BBP training, PPE | Annual amortized + monthly PPE | $140–$200 |
| Equipment depreciation | Autoscrubber, vacuums, carts | $310–$480 |
| Overhead + management (20–24%) | Applied to labor + supplies | $3,400–$4,100 |
| Total before margin | $20,779–$21,969 | |
| Target margin (9–13%) | $2,020–$3,070 | |
| Bid price | ÷ 30,000 sf ÷ 12 months | $1.80–$2.11/sf/yr |
Variables That Move MOB Pricing
- Specialty suites: Infusion centers, oncology suites, and wound-care clinics require enhanced protocols that add $0.15–$0.35/sf/yr above standard MOB pricing.
- Sharps and regulated waste: If the BSC is responsible for sharps container monitoring and staged pickup, that obligation adds $80–$180/month per building depending on volume.
- OSHA 1910.1030 compliance level: Full BBP program documentation, annual training records, and exposure control plan maintenance are non-trivial administrative costs.
- After-hours vs occupied cleaning: MOBs cleaned with patients still in late appointments require additional supervision and coordination time not needed in empty-building nightly work.
Tradeoffs: Compliance Overhead vs Cleaning Quality
The compliance layer on MOB cleaning (BBP training, color-coded microfiber protocols, contact-time documentation for disinfectants) adds cost that has no direct analog in general office work. Some smaller BSCs price MOBs by simply adding a flat 20 percent premium to their office rate, which may cover the supply cost difference but underfunds the training and supervision requirements. The building's infection-control officer — if one exists — will find the gaps. A proper MOB program requires a supervisor who has read OSHA 29 CFR 1910.1030 and can speak to the building's specific exposure control plan. That requirement eliminates a meaningful subset of low-bidding competitors and should be used as a differentiator in the proposal.
Red Flags in MOB Bids
A bid below $1.40/sf/yr for 5-night MOB service on any building under 50,000 sf, without a day porter, cannot fund the labor hours the clinical protocol requires at current wage rates. Ask specifically whether the bidder has included exam-room disinfection as a separate line item or has bundled it into a general cleaning production rate. If bundled, ask for the production rate they used: anything above 2,500 sf/hr for a mixed clinical/non-clinical building is unrealistic. The IREM Operations and Maintenance Benchmarks for healthcare-anchored office properties provide an independent reference for evaluating total cleaning OpEx claims.
For related facility cost comparisons, see the guides on dental office cleaning cost and ambulatory surgery center pricing. The Opora Pricing by Facility hub covers all 25 facility types. The healthcare cleaning resource hub indexes compliance guides and SOPs. Run your own MOB labor model with the Opora Restroom Time Calculator to calibrate exam-room and restroom time allocations before committing to a bid price. The BLS OEWS SOC 37-2011 wage data is the correct anchor for all labor modeling in this sector.
By the Opora Editorial Team · Last updated: 2026