How to Bid & Win Commercial Duct Cleaning Contracts: Complete RFP Guide (2026)

The Money Isn't in Residential — It's in the Contracts Nobody Else Is Bidding On

A residential duct cleaning job pays $350-900. A commercial office building contract pays $4,000-25,000. A restaurant chain kitchen exhaust contract with 12 locations and quarterly service pays $24,000-72,000 per year. The revenue difference is an order of magnitude. But commercial contracts aren't won by the lowest bidder — they're won by the contractor who understands what the facility manager actually needs and can prove they'll deliver it before the contract is signed.

This guide covers how to find commercial duct cleaning opportunities, price them profitably, write bids that win, and avoid the mistakes that cause contractors to lose money on jobs they thought they won.

Where to Find Commercial Duct Cleaning Opportunities

Direct Outreach (Highest Margins)

• Property management companies: CBRE, JLL, Cushman & Wakefield, Colliers, and regional property managers are responsible for hundreds of buildings. Each building has HVAC systems that need periodic duct cleaning. A single property manager may control 5-20 buildings. Contact the facility or engineering manager for each property, not the leasing office.
• Hospitality groups: Hotel chains, restaurant groups, and casino operators with multiple properties in a region. Their kitchen exhaust cleaning is mandatory (NFPA 96), and their HVAC duct cleaning is increasingly specified by corporate IAQ standards. The pitch: "I can handle all your locations on a coordinated schedule with one point of contact and standardized documentation."
• Healthcare systems: Hospital networks and medical office building operators. Healthcare has the strictest IAQ and documentation requirements — which means the highest barriers to entry for your competitors and the highest margins for contractors who can meet the requirements.
• School districts and universities: Public K-12 school districts typically issue RFPs for HVAC maintenance services. Universities manage dozens to hundreds of buildings with varied HVAC systems. The summer and winter break windows for school cleaning create predictable seasonal demand.
• Industrial facility managers: Manufacturing plants, data centers, food processing facilities. Each has specific compliance requirements and operational constraints. Industrial duct cleaning typically commands the highest per-hour rates of any segment.

RFP Platforms (Wider Reach)

• Government procurement portals: FedBizOpps (federal), state procurement websites, city and county purchasing departments. Government RFPs are public record, have clear submission requirements, and award criteria are stated up front. The paperwork burden is higher, but the contracts are larger and more stable.
• Commercial RFP platforms: BidNet, DemandStar, PlanetBids. These aggregate RFPs from government agencies, school districts, and some private organizations. Subscription costs $100-300/month — worth it if you bid regularly.
• Prime contractor subcontracting: Large mechanical contractors, general contractors, and construction managers often need duct cleaning as a subcontractor scope on renovation and TI (tenant improvement) projects. Build relationships with 3-5 mechanical and GC project managers. When they win a job that includes duct cleaning, you get the call.

Insurance and Restoration Referrals

• Property insurance adjusters: After a fire, water damage, or mold claim, insurance adjusters specify the scope of restoration work — including duct cleaning. Build relationships with adjusters at the major carriers and independent adjusting firms. When they specify duct cleaning in a claim scope, your company name is already in their contact list.
• Restoration companies: Servpro, ServiceMaster, Belfor, and local restoration contractors handle fire, water, and mold damage restoration. They subcontract specialized duct cleaning. Being their go-to duct cleaning subcontractor means consistent referral work without marketing cost.

How to Price Commercial Duct Cleaning Jobs

The Wrong Way: Per Square Foot Alone

A blanket per-square-foot price assumes every building is the same — and they're not. A 50,000 sq ft hospital built in 1975 with 200+ VAV boxes, fire dampers, and limited access is not the same as a 50,000 sq ft warehouse built in 2015 with exposed spiral duct. If you use the same per-square-foot price for both, you'll lose money on one or price yourself out of the other.

The Right Way: Build Up from Labor, Equipment, and Access

1. Estimate cleaning hours per duct section: Walk the building. Count access points. Measure linear feet per duct section. Estimate cleaning time per section based on duct size, contamination level, and access difficulty.
2. Add access creation time: If access doors need to be cut, each door takes 30-60 minutes to cut, clean, and install a permanent access panel. Count the doors needed and add the time.
3. Add containment and setup/teardown time: Setting up HEPA negative air containment at each air handler, sealing supply and return openings, and post-job cleanup. Typically 1-2 hours per air handler.
4. Calculate labor cost: Cleaning hours × number of technicians × hourly labor cost (including burden). For a 2-person robotic crew, labor cost is $50-70/hr crew rate. A 200-hour job at $60/hr = $12,000 labor cost.
5. Add equipment cost: Robot amortization, consumables (brushes, filters, chemicals), vehicle cost, fuel. Figure $50-150/day in equipment cost for a robotic system.
6. Add overhead and profit: Overhead (insurance, office, software, management) typically runs 15-25% of direct costs. Profit target: 15-30% on commercial work, higher on specialized/healthcare.

Pricing Benchmarks by Building Type

• Class A office, good access, clean system: $0.08-0.15/sq ft
• Class B/C office, moderate access, typical contamination: $0.12-0.20/sq ft
• Healthcare (hospital, medical office): $0.15-0.40/sq ft (ICRA containment required)
• Kitchen exhaust only (restaurant, per location): $500-2,500 (quarterly to annually)
• Industrial/manufacturing: Bid per linear foot, not per sq ft. Typically $8-25/linear foot depending on duct diameter and contamination.
• Post-construction cleanup (new building before occupancy): $0.06-0.12/sq ft (lighter contamination, good access)
• Fire/smoke damage restoration: $0.20-0.50/sq ft (heavy contamination,urgent timeline, insurance documentation)

Writing Bids That Win

What Facility Managers Actually Care About

Facility managers evaluate duct cleaning bids on these criteria, in roughly this order:

1. Proof that you can do the work without disrupting operations: The #1 fear of a facility manager hiring a duct cleaning contractor is that the contractor will disrupt tenants, create dust complaints, damage finishes, or shut down HVAC during occupied hours. Your bid should address containment, scheduling, and disruption mitigation in detail — before talking about price.
2. Documentation quality: The facility manager needs to prove to their boss, the building owner, the insurance company, and possibly the fire marshal that the ducts were properly cleaned. Your bid should describe exactly what documentation the client will receive: before/after photos of every section, floor plan marked with cleaned sections, dated certificate, digital delivery. Show sample documentation in the bid.
3. Evidence that you've done this before: Include project descriptions and references from similar buildings. "We cleaned the ducts at 123 Main Street, a 75,000 sq ft Class A office building, in Q3 2025 with zero tenant complaints" is worth 10 pages of generic marketing language.
4. Price: Yes, price matters — but it's #4 on the list. A facility manager who picks the cheapest bid will be asked to explain that choice when something goes wrong. Make it easy for them to justify choosing you by being better on criteria #1-3; then your price doesn't need to be the lowest.

The Bid Document Structure That Wins

1. Executive summary (1 page): What you'll do, when you'll do it, what it will cost, and why you're the right contractor for this specific building. Write this last, but put it first.
2. Scope of work (2-4 pages): Exactly what you'll clean (which ducts, which AHUs, which coils), how you'll access each section, what equipment and methods you'll use, how you'll contain debris, how you'll verify cleaning completion. Be specific — "clean supply ducts per NADCA standards" is not specific enough. "Clean all supply duct sections serving floors 2-8, approximately 2,850 linear feet, using a robotic brushing system with HEPA-filtered negative air containment at each of the 12 VAV zones" is specific.
3. Schedule and phasing (1 page): Which areas on which days, which areas will be temporarily inaccessible, what hours you'll work, how you'll coordinate with building operations. For occupied buildings, after-hours and weekend work should be explicitly stated.
4. Documentation deliverables (1/2 page): List every document the client will receive. Include that these are delivered digitally within 48 hours of completion.
5. Qualifications and references (1 page): Certifications held, insurance coverage, relevant project experience, references with contact information.
6. Pricing (1 page): Fixed price with clear inclusions and exclusions. List any assumptions (e.g., "all duct sections accessible via existing access doors; additional access doors, if required, at $150 each"). This protects you from scope creep and demonstrates that you understand the project.

Red Flags That Kill Bids

• Vague scope: "Clean ducts per industry standards" tells the evaluator nothing
• No mention of containment: The evaluator assumes you'll make a mess
• No references from similar buildings: The evaluator assumes this is your first commercial job
• Typos and formatting errors: If you can't proofread your bid, the evaluator assumes you won't be careful with their building
• Price alone as the differentiator: "We're the lowest price" tells the evaluator you have nothing else to offer
• Missing insurance information: The evaluator can't consider your bid if they can't verify your coverage

Commercial Kitchen Exhaust Contract Bidding

Kitchen exhaust cleaning contracts differ from HVAC duct cleaning in important ways:

• The buyer is often the restaurant operator, not the building owner: Per most commercial leases, kitchen exhaust cleaning is the tenant's responsibility. You're selling to restaurant managers and owners, not facility managers. Their concerns: price, speed (they want the kitchen back online fast), and fire marshal compliance.
• The work is recurring by regulation: NFPA 96 mandates cleaning on a schedule. A restaurant that needs quarterly cleaning is 4 guaranteed jobs per year. A chain with 12 locations is 48 jobs per year. The lifetime value of a restaurant chain contract is significantly higher than a one-time HVAC duct cleaning.
• Multi-location pricing is different: A restaurant chain with 12 locations in one metro area can be serviced efficiently with route density. Offer a per-location discount for multi-unit contracts because your mobilization cost per location drops when you can service 2-3 locations per day.
• Documentation is for the fire marshal: Kitchen exhaust bids should emphasize the documentation package — fire marshals and insurance companies require before/after photos and cleaning certificates. A contractor who provides superior documentation reduces the restaurant owner's compliance risk.

After You Win: Delivering on Your Bid

Winning the contract is half the battle. Delivering what you promised — on schedule, on budget, with the documentation you committed to — is what gets you the next contract from the same client without having to bid competitively. The most profitable commercial duct cleaning work isn't won by bidding. It's won by doing the previous job so well that the client calls you directly for the next one and doesn't solicit competitive bids.