Duct Annual Maintenance Contract (AMC)

This is a question we get often - and it is an important one.

An HVAC AMC covers your core HVAC equipment - chillers, AHUs, compressors, condensers, and control systems. A Duct AMC, on the other hand, focuses specifically on the duct network that carries conditioned air throughout your space.

Both are essential, but they address different parts of your system. Neglecting your ducts while maintaining your HVAC equipment is like servicing a car engine while ignoring clogged fuel lines, the equipment works, but performance suffers.

Our duct AMC services can be taken independently or bundled with our HVAC AMC for complete system coverage.

It is a year-long preventive maintenance agreement focused entirely on your duct system. Under this contract, our technicians perform scheduled inspections, professional cleaning, airflow testing, and performance optimization, keeping your duct network in peak condition throughout the year.

Instead of waiting for visible problems like reduced airflow, unusual odors, or dust buildup at vents, a duct AMC gives you a proactive maintenance framework that catches issues early and prevents costly disruptions.

Duct systems accumulate dust, debris, and biological contaminants over time. In marine environments, saltwater moisture adds corrosion risk. In industrial settings, airborne particles create rapid blockage. In commercial buildings, poor duct maintenance directly impacts occupant comfort and air quality.

Without a structured maintenance plan, you face:

• Reduced airflow causing uneven cooling or heating across spaces
• Increased HVAC load leading to higher energy bills and equipment strain
• Poor indoor air quality from dust, mold, and contaminants circulating through ducts
• Higher breakdown risk as blocked ducts put pressure on fans and motors
• Compliance risks in healthcare, marine, and industrial environments with air quality standards
• Shortened HVAC lifespan due to continuous overload from restricted airflow

Regular duct maintenance is not just about cleanliness, it directly protects your HVAC investment and operational efficiency.

• Visual and physical inspection of duct condition and structure
• Identification of dust accumulation, blockages, and leakages
• Check for corrosion, damage, or insulation failure
• Airflow measurement and pressure testing

• Removal of dust, debris, and biological contaminants
• Cleaning of supply ducts, return ducts, and vent covers
• Sanitization of duct interiors where required
• Post-cleaning airflow verification

• Airflow measurement across all supply and return points
• Damper adjustment and balancing for uniform distribution
• Reduction of HVAC system load through optimized airflow
• Performance benchmarking before and after servicing

Our team specializes in marine duct maintenance for:

• Cargo vessels and container ships
• Offshore platforms and drilling rigs
• Passenger ferries and cruise vessels
• Naval and coast guard vessels
• Tugboats and support vessels

Marine duct AMC from us includes corrosion assessment, moisture control checks, and compliance verification with maritime ventilation standards.

• Work performed and findings from inspection
• Before and after airflow measurements
• Issues identified and corrective actions taken
• Recommendations for the next maintenance cycle

• Improved Indoor Air Quality

  Clean ducts mean cleaner air, especially important in healthcare, marine, and commercial environments where air quality directly impacts health and compliance.

• 10–20% Lower Energy Costs

  Optimized airflow reduces the load on your HVAC system, directly translating to lower energy consumption and reduced monthly operating costs.

• Extended HVAC Equipment Life

  When ducts are clean and airflow is balanced, your HVAC equipment runs with less strain, reducing wear and extending operational life.

• Prevention of Costly Repairs

  Early detection of duct leakages, blockages, and damage prevents minor issues from becoming expensive repair or replacement projects.

• Predictable Maintenance Budget

  Fixed annual contract cost eliminates surprise repair expenses and makes budgeting straightforward.