A commercial HVAC cleaning proposal should do more than name a price per air handling unit or square foot. It should tell a building manager exactly what will be assessed and cleaned, how the contractor will control dust and access the system, when work will occur, and how completion will be verified. Those details make bids comparable and help prevent scope disputes after the project starts.
An Assessment That Explains the Need for Work
The proposal should be grounded in an inspection or a clearly described preliminary assessment. Look for identified systems, observed conditions, available drawings, and the reason each area is included. If some ductwork could not be inspected before bidding, the contractor should say so and explain how it will be evaluated after access is available. NADCA’s commercial checklist calls for an assessment before work and review of project drawings and specifications.
A Component Level Scope with Clear Exclusions
The work plan should name the air handling units, supply and return ducts, plenums, coils, fans, dampers, terminal units, and other components that are included where applicable. It should also state what is excluded. A bid for “duct cleaning” can mean very different things if one contractor includes the air handler and another does not. Identify the number of systems, zones, and access points so quantities can be compared on the same basis.
Methods and Controls Suited to the Building
Ask how debris will be loosened and collected, where vacuum equipment will exhaust, and what containment will protect occupied areas. The proposal should address negative pressure, protective coverings, access opening closure, and any special conditions such as fragile duct liner or restricted spaces. If chemical products are proposed, request their purpose and Safety Data Sheets. NADCA’s checklist includes these controls and methods as pre-project discussion items.
A Realistic Schedule and Owner Coordination
A useful schedule identifies work windows, anticipated shutdowns, phasing, access requirements, and the facility contact who can authorize equipment isolation and restoration. It should list needs such as power, water, lifts, ceiling access, or other trades. Buildings with tenants, healthcare services, laboratories, or continuous operations require a site-specific plan, including communication with the teams responsible for affected spaces.
Qualifications and the Standard to be Followed
The proposal should identify the contractor’s relevant experience, insurance, applicable licenses, and the person responsible for technical oversight. Ask which edition of ACR, the NADCA Standard for Assessment, Cleaning and Restoration of HVAC Systems, will guide the work. NADCA offers a general commercial specification, but it says the document must be adapted to each building’s systems and coordinated with a qualified contractor.
A Defined Method for Verification and Closeout
Agree in advance on how cleanliness will be checked and what evidence the owner will receive. Depending on the project, the closeout package may include pre- and post-cleaning images, component lists, inspection results, access locations, deficiencies, and recommended repairs. The proposal should also say who will verify that equipment is restored and how exceptions will be documented. NADCA recommends identifying post-project documentation before hiring.
Pricing that Can be Compared Fairly
Separate the base scope from optional services, repairs, and allowances for unknown conditions. Ask how a change in scope will be priced and approved, what work hours are assumed, and whether mobilization, lifts, access restoration, waste handling, and documentation are included. A lower total may reflect fewer components or less verification. Compare what each bid will actually deliver before selecting one.
Use the Proposal as the Project Plan
A clear proposal becomes a working reference for the facility team and contractor. It sets expectations for access, containment, cleaning, verification, and handoff. Advanced Air Duct Cleaning can assess your commercial HVAC systems and develop a scope and work plan suited to your building. Contact our team to discuss the systems, operating constraints, and documentation you need in the proposal.