Below are ventilation duct price list for supply air duct and exhaust air duct including spiral duct, flexible duct and rectangular duct. Ventilation air duct price is in Philippine Peso (Php) VAT inclusive.
Ventilation ducts are essential components of any HVAC (Heating, Ventilation, and Air Conditioning) system. They provide a pathway for air to circulate efficiently throughout residential, commercial, or industrial buildings. Whether you’re working on new construction or retrofitting an existing space, understanding the current prices of ventilation ducts in the Philippines helps you manage both cost and design effectively.
What Are Ventilation Ducts?
Ventilation ducts, often made from galvanized steel, aluminum, or PVC, distribute conditioned or fresh air across a space. These ducts play a crucial role in ensuring air quality, temperature control, and indoor comfort.
In addition, engineers use different shapes and materials depending on the application—rectangular, round, or spiral ducts all offer specific advantages in terms of airflow and installation.
Common Applications in Building Projects
Contractors and HVAC technicians regularly install ventilation ducts in:
- 🏢 Commercial buildings – offices, malls, and hotels
- 🏠 Residential homes – kitchens, bathrooms, and living areas
- 🏭 Industrial facilities – warehouses, factories, clean rooms
- 🏫 Public spaces – schools, hospitals, and government offices
Furthermore, these systems often work in tandem with fans, grilles, filters, and air-handling units to maintain efficient air circulation and filtration.
Available Duct Sizes and Materials
Duct sizes vary depending on the air volume and system layout. Common materials include:
- Galvanized Iron (GI) sheets – strong and corrosion-resistant
- Aluminum ducts – lightweight and easy to handle
- PVC flexible ducts – ideal for tight or curving spaces
- Insulated ducts – used for temperature-sensitive systems
Moreover, the duct’s thickness (often measured in gauge) also affects both performance and price. Thicker gauges provide better durability but cost more.
Factors That Influence Duct Prices
Several factors directly impact the cost of ventilation ducts:
- Material type and thickness
- Duct shape and size (round vs. rectangular)
- Insulation requirements
- Fabrication and labor costs
- Transportation and supplier location
- Volume of purchase (bulk orders may lower unit cost)
As a result, prices can vary greatly between small residential projects and large commercial builds.
For louvers, diffusers, dampers and air grill, please click the link DAMPERS, DIFFUSER, GRILLE AND LOUVER PRICE LIST
For straight duct and fittings installation man hours, please click the link DUCT INSTALLATION MAN HOURS
VENTILATION DUCT PRICE
Below is the updated price list for fabricated ventilation ducts, typically used in HVAC installations across various project types. These prices serve as a reference and may differ slightly depending on the supplier or site conditions.
FLEXIBLE DUCT
| ITEM NO. | TYPE | DESCRIPTION | UNIT | MATERIAL | PHP / METER | |
|---|---|---|---|---|---|---|
| 1 | Flexible Duct | 150 mm diameter | 1 meter | Aluminum | 277.19 | |
| 2 | Flexible Duct | 200 mm diameter | 1 meter | Aluminum | 478.24 | |
| 3 | Flexible Duct | 250 mm diameter | 1 meter | Aluminum | 572.60 | |
| 4 | Flexible Duct | 300 mm diameter | 1 meter | Aluminum | 929.57 |
SPIRAL DUCT
| ITEM NO. | TYPE | DESCRIPTION | UNIT | MATERIAL | PHP / METER | |
|---|---|---|---|---|---|---|
| 1 | Spiral Duct | 100 mm diameter | 1 meter | GI | 302.09 | |
| 2 | Spiral Duct | 150 mm diameter | 1 meter | GI | 407.58 | |
| 3 | Spiral Duct | 200 mm diameter | 1 meter | GI | 542.54 | |
| 4 | Spiral Duct | 250 mm diameter | 1 meter | GI | 681.46 | |
| 5 | Spiral Duct | 300 mm diameter | 1 meter | GI | 868.61 | |
| 6 | Spiral Duct | 350 mm diameter | 1 meter | GI | 1,033.53 | |
| 7 | Spiral Duct | 400 mm diameter | 1 meter | GI | 1,183.73 |
RECTANGULAR DUCT
150MM TO 450MM WIDTH
| ITEM NO. | TYPE | DESCRIPTION | UNIT | MATERIAL | PHP / METER | |
|---|---|---|---|---|---|---|
| 1 | Rectangular Duct | W=150mm, H=100mm | 1 meter | GI | 615.98 | |
| 2 | Rectangular Duct | W=150mm, H=150mm | 1 meter | GI | 643.81 | |
| 3 | Rectangular Duct | W=200mm, H=150mm | 1 meter | GI | 672.60 | |
| 4 | Rectangular Duct | W=200mm, H=200mm | 1 meter | GI | 701.37 | |
| 5 | Rectangular Duct | W=250mm, H=200mm | 1 meter | GI | 729.79 | |
| 6 | Rectangular Duct | W=250mm, H=250mm | 1 meter | GI | 758.29 | |
| 7 | Rectangular Duct | W=250mm, H=300mm | 1 meter | GI | 838.83 | |
| 8 | Rectangular Duct | W=300mm, H=200mm | 1 meter | GI | 781.98 | |
| 9 | Rectangular Duct | W=300mm, H=250mm | 1 meter | GI | 838.86 | |
| 10 | Rectangular Duct | W=300mm, H=350mm | 1 meter | GI | 902.17 | |
| 11 | Rectangular Duct | W=350mm, H=200mm | 1 meter | GI | 957.19 | |
| 12 | Rectangular Duct | W=350mm, H=250mm | 1 meter | GI | 1,023.84 | |
| 13 | Rectangular Duct | W=350mm, H=300mm | 1 meter | GI | 1,089.79 | |
| 14 | Rectangular Duct | W=350mm, H=350mm | 1 meter | GI | 1,155.53 | |
| 15 | Rectangular Duct | W=350mm, H=450mm | 1 meter | GI | 1,286.63 | |
| 16 | Rectangular Duct | W=400mm, H=300mm | 1 meter | GI | 1,155.97 | |
| 17 | Rectangular Duct | W=400mm, H=350mm | 1 meter | GI | 1,219.36 | |
| 18 | Rectangular Duct | W=450mm, H=150mm | 1 meter | GI | 1,023.85 | |
| 19 | Rectangular Duct | W=450mm, H=300mm | 1 meter | GI | 1,219.74 | |
| 20 | Rectangular Duct | W=450mm, H=350mm | 1 meter | GI | 1,286.70 | |
| 21 | Rectangular Duct | W=450mm, H=400mm | 1 meter | GI | 1,353.11 |
RECTANGULAR DUCT, WIDTH=500MM TO 1800MM
| ITEM NO. | TYPE | DESCRIPTION | UNIT | MATERIAL | PHP / METER | |
|---|---|---|---|---|---|---|
| 22 | Rectangular Duct | W=500mm, H=300mm | 1 meter | GI | 1,311.02 | |
| 23 | Rectangular Duct | W=500mm, H=350mm | 1 meter | GI | 1,378.86 | |
| 24 | Rectangular Duct | W=500mm, H=400mm | 1 meter | GI | 1,443.18 | |
| 25 | Rectangular Duct | W=500mm, H=450mm | 1 meter | GI | 1,508.40 | |
| 26 | Rectangular Duct | W=550mm, H=550mm | 1 meter | GI | 1,731.07 | |
| 27 | Rectangular Duct | W=600mm, H=400mm | 1 meter | GI | 1,575.46 | |
| 28 | Rectangular Duct | W=600mm, H=450mm | 1 meter | GI | 1,640.54 | |
| 29 | Rectangular Duct | W=600mm, H=600mm | 1 meter | GI | 1,863.17 | |
| 30 | Rectangular Duct | W=600mm, H=850mm | 1 meter | GI | 2,805.70 | |
| 31 | Rectangular Duct | W=650mm, H=500mm | 1 meter | GI | 1,819.43 | |
| 32 | Rectangular Duct | W=650mm, H=550mm | 1 meter | GI | 1,887.11 | |
| 33 | Rectangular Duct | W=650mm, H=600mm | 1 meter | GI | 1,951.00 | |
| 34 | Rectangular Duct | W=700mm, H=700mm | 1 meter | GI | 2,175.17 | |
| 35 | Rectangular Duct | W=750mm, H=250mm | 1 meter | GI | 1,600.25 | |
| 36 | Rectangular Duct | W=800mm, H=700mm | 1 meter | GI | 2,917.68 | |
| 37 | Rectangular Duct | W=950mm, H=800mm | 1 meter | GI | 3,348.34 | |
| 38 | Rectangular Duct | W=1000mm, H=600mm | 1 meter | GI | 3,066.12 | |
| 39 | Rectangular Duct | W=1050mm, H=900mm | 1 meter | GI | 3,689.29 | |
| 40 | Rectangular Duct | W=1800mm, H=600mm | 1 meter | GI | 5,469.04 |
In addition, many contractors prefer to coordinate directly with fabricators for custom-sized ducts to match specific design plans or site limitations.
Installation Considerations and Best Practices
To ensure proper airflow and efficiency, follow these important guidelines during duct installation:
- Design the duct layout to minimize bends and resistance
- Seal joints using tape or mastic to prevent air leakage
- Use hangers or brackets to support longer duct runs
- Insulate ducts exposed to heat or humidity
- Verify compatibility with fans, vents, and HVAC equipment
Moreover, always follow local building codes and ventilation standards to ensure safety and system performance.
Conclusion
In summary, ventilation ducts form the backbone of any effective HVAC system. Choosing the right material, size, and installation method can significantly improve air distribution and indoor comfort.
Therefore, staying updated with the latest duct prices and available options helps you plan your project efficiently—avoiding budget overruns and delays.
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