Ductwork System Maintenance Checklist
Keep ductwork clean, sealed, and compliant — cleanliness and hygiene inspection to TR/19, leakage and support checks, damper verification, and insulation review.
What is a ductwork maintenance checklist?
A ductwork system maintenance checklist is a structured list of the 10 preventive maintenance tasks — covering visual, functional, cleaning, safety and record-keeping checks — that keep a ductwork system running safely and reliably. It groups routine checks by frequency, from daily inspections to annual servicing, so FM teams and building engineers can plan and evidence preventive maintenance.
Core ductwork checks
- Inspect internal duct cleanliness and measure deposit levels (TR/19)
- Check for air leakage at joints, especially on the supply side
- Clean ductwork where contamination exceeds the standard
- Verify fire-stopping where ducts pass through compartments
- Record cleanliness verification, cleaning, and inspections in the log
What is a ductwork system?
Ductwork distributes supply, return, and extract air throughout a building, and its condition directly affects air quality, energy use, and fire safety. Over time ducts accumulate dust and contaminants that degrade indoor air quality, leak air and waste fan energy, and — in kitchen extract or dirty environments — create a fire risk. The BESA TR/19 specification sets the standard for ventilation hygiene and cleanliness. Maintenance covers internal cleanliness (with verification), leakage, the condition of dampers and supports, access provision, and insulation — keeping the system hygienic, efficient, and safe.
This checklist is one of 34 in our HVAC maintenance checklists, covering air handling units, fan coils, chillers, VRF, ductwork and extract systems — filters, coils, refrigerant and damper checks.
Typical Ductwork maintenance checklist
A practical starting point for planned preventive maintenance. Always refer to the manufacturer's O&M manual and site-specific requirements.
Visual Checks
- Inspect internal duct cleanliness and measure deposit levels (TR/19)
- Inspect duct supports, hangers, and brackets for security
- Confirm access doors are present, sealed, and adequate for cleaning
- Check thermal and acoustic insulation for damage and condensation
- Inspect flexible connections and any grilles/diffusers for blockage
Functional Checks
- Check for air leakage at joints, especially on the supply side
- Verify fire and volume control dampers are accessible and operate
Cleaning & Housekeeping
- Clean ductwork where contamination exceeds the standard
Safety Checks
- Verify fire-stopping where ducts pass through compartments
Record Keeping
- Record cleanliness verification, cleaning, and inspections in the log
Download the free Ductwork maintenance checklist PDF
Get all 10 tasks as a printable PDF — free, no signup needed. Keep a copy in the plant room, attach it to work orders, or share it with your maintenance contractor.
Typical maintenance frequency
Suggested intervals for ductwork system maintenance. Actual frequencies should follow manufacturer guidance and site-specific risk assessments.
Annually
- •Ventilation hygiene inspection (TR/19)
- •Damper and support check
- •Insulation and leakage inspection
- •Post-clean verification where cleaned
Common faults and issues
Issues to be aware of when maintaining ductwork system equipment.
Safety and compliance notes
Key safety considerations for ductwork system maintenance. This is general guidance only — always follow OEM instructions, statutory requirements, and your organisation's safe systems of work.
Reference standards and frameworks
- United Kingdom
- SFG20, CIBSE Guide M, and BESA TR19 / BS EN 15780 for ductwork hygiene
- North America
- ASHRAE/ACCA Standard 180 and NADCA ACR for duct cleanliness
Frameworks commonly referenced when planning ductwork maintenance programmes. Always confirm the requirements that apply to your site and jurisdiction.
Managing Ductwork documentation with PM Assist
PM Assist helps FM and building operations teams search their O&M manuals and building drawings in seconds. Upload your ductwork system documentation and ask questions like “When was the ductwork last hygiene-inspected?” or “Where are the access doors located?” — and get source-cited answers instantly.
See PM Assist answer questions about a real ductwork manual — try the live demo, no signup needed.
Take this checklist with you
Download the branded PDF, generate a custom version for your asset, or run AI search across all your building documentation.
Related free tools
Related maintenance checklists
Air Handling Unit (AHU) maintenance checklist
HVAC · 18 tasks
Supply Fan maintenance checklist
Ventilation · 12 tasks
Extract Fan maintenance checklist
Ventilation · 12 tasks
Fire Damper maintenance checklist
Fire Safety · 12 tasks
Commercial Kitchen Extract System maintenance checklist
Ventilation · 10 tasks
Further reading on ductwork maintenance
Compliance topics for ductwork maintenance
Frequently asked questions
How often should ductwork be cleaned?
What is TR/19?
Why does duct leakage matter?
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