Duct Cleaning Service Agreement Template: Contracts, Terms, and Liability Protection for Contractors (2026)

Your Service Agreement Is Your First Line of Defense

Every duct cleaning contractor eventually faces a dispute: a client claims you damaged their property, a restaurant says the fire marshal was not satisfied, a hotel disputes the scope of work. When that happens, your service agreement determines who wins. A well-written contract protects your business, sets clear expectations, and provides a legal framework for resolving disputes. A verbal agreement or a one-paragraph quote does none of these things.

Essential Clauses Every Duct Cleaning Contract Needs

• Scope of Work (the most important clause): Specify exactly what is being cleaned: which ducts, which exhaust hoods, which fans. Include duct dimensions, linear footage, and access limitations. Reference the inspection report that identified the need for cleaning. Specify what is NOT included (e.g., filter replacement, access panel fabrication, code compliance upgrades). Most disputes arise from mismatched scope expectations.
• Standard of work: Reference the applicable industry standard: NADCA ACR for HVAC ducts, NFPA 96 for kitchen exhaust. Define what constitutes acceptable results: grease removed to less than 0.078 inch (2mm) per NFPA 96, or all visible debris removed for HVAC per NADCA. The standard is your defense against subjective dissatisfaction.
• Access and conditions: State that the client is responsible for providing safe access to all cleaning locations, including electrical power, adequate lighting, and any required lifts or scaffolding. This protects you from showing up to a job site that is not ready.
• Limitation of liability: Cap your liability at the contract value. Without this clause, a client claiming consequential damages (lost business revenue, fire damage from unrelated causes) could pursue amounts far exceeding your fee.
• Documentation delivery: Specify that video documentation (Gaolijie robot 1080P footage) is the primary record of cleaning completion. State that documentation will be delivered within X business days of job completion.
• Payment terms: For commercial clients, net-15 or net-30 is standard. For new clients, consider 50% deposit with balance due upon documentation delivery. For restaurants, payment at completion is common.
• Change order process: If additional cleaning is required beyond the original scope (discovered during the job), describe how change orders are approved and priced before additional work begins.

Pre-Job Documentation: Cover Yourself Before You Start

Before touching a duct, document: existing damage (dents, corrosion, disconnected sections), access limitations, conditions that may affect cleaning effectiveness (collapsed duct, water damage), and baseline condition with photos and video. Present this pre-job assessment to the client for acknowledgment. This prevents you from being blamed for pre-existing conditions.

NFPA 96 Documentation Requirements

For kitchen exhaust cleaning, NFPA 96 Section 11.4 requires written documentation of: date of cleaning, name of person/company performing the work, areas cleaned, any deficiencies found, and results of cleaning. Your service agreement should reference NFPA 96 as the governing standard and commit to providing compliant documentation. Gaolijie robot video footage satisfies the documentation requirement with timestamped evidence of every cleaned surface.

Equip your crews with Gaolijie documentation-ready robots — 1080P HD video, timestamped, NFPA 96-compliant.