Commercial kitchen extractor fan installations cost £500 to £3,000+ depending on kitchen size, extraction rate, and whether ductwork is involved. Smaller catering setups might manage on £500-£1,000 while larger restaurant kitchens run to £2,000-£5,000 or more.
These costs cover robust commercial kitchen extractor fans that handle grease, heat, steam, and comply with Food Safety and Fire Regulations.
How Much Does a Commercial Kitchen Extractor Fan Cost?
Commercial kitchen extractor fans range from £150 for compact centrifugal units to £1,500+ for high-capacity inline or axial models. Larger restaurants and catering operations specify bigger fans with higher airflow rates, pushing costs higher. Prices depend on airflow capacity (m³/h), motor power, construction materials (galvanised steel or stainless), and whether grease filters are included.
eFans stocks commercial kitchen extractor fans including units from the reliable Systemair brand, designed for demanding catering environments where continuous operation and grease resistance are essential.
What Installation Costs Should You Budget For?
Installation labour and materials add £300 to £2,000+ to the total cost of installing an extractor fan in a kitchen. Simple wall-mounted units require minimal work, while ducted systems serving larger hoods demand extensive duct runs, fire dampers, and commissioning.
Retrofit projects in existing premises cost more due to access challenges and structural modifications.
Wall-Mounted and Centrifugal Fan Installations
Wall-mounted centrifugal extractor fans suit smaller commercial kitchens or takeaways. Installation typically costs £200-£500 including a core-drilled hole, power connection, and basic commissioning. These units extract directly to the atmosphere without ductwork, keeping the overall project straightforward and budget-friendly for contractors.
Inline and Ducted Kitchen Extractor Installations
Inline ducted fans mounted in ceiling voids or loft spaces serve multiple hoods or larger cooking areas. Installation costs range from £500 to £1,500+ depending on duct length, bends, insulation, and termination point. Fire-rated ductwork and backdraught dampers are mandatory for compliance, adding to the materials budget.
Expect additional costs for grease filters (£50-£200), access panels, and electrical upgrades if the kitchen's existing supply cannot support the fan's power draw.
What Drives Up Commercial Kitchen Extractor Fan Costs?
Several factors push installation costs above baseline estimates, particularly in busy commercial environments.
High extraction rates (500-5,000 m³/h or more) are needed to handle steam, grease, and cooking odours from multiple appliances, requiring larger, more powerful fans. Compliance with DW/172 kitchen ventilation standards demands specific construction, fire safety features, and commissioning, all of which carry a cost.
Larger kitchens also require multiple units or a central system, multiplying both unit and labour expenses.
For contractors specifying ventilation that meets these standards while keeping costs controlled, eFans commercial kitchen extractor fans offer reliable performance across a range of capacities and formats.
What Ongoing Costs Come With Kitchen Extractor Fans?
Running costs for commercial kitchen extractor fans remain low. A typical 500-1,000 m³/h unit draws 100-300W continuously, costing £100-£400 annually at current electricity rates. Intermittent boost operation during peak cooking periods adds to this, but energy-efficient EC motors on newer models help keep bills down.
Maintenance is the bigger ongoing expense. Grease filters need cleaning or replacing monthly (£50-£200/year), while full annual servicing including motor checks and duct cleaning runs £150-£500 depending on system size. Facilities managers should budget for this as part of food hygiene compliance.
How Do Regulations Affect Kitchen Extractor Fan Costs?
Approved Document F and DW/172 set mandatory ventilation standards for commercial kitchens. Systems must achieve 20-30 air changes per hour, capture cooking effluents at source, and include fire suppression compatibility.
This requires specified airflow rates, grease separation, and access for cleaning, all pushing up both unit specification and installation costs.
Fire dampers, pressure relief systems, and commissioning certificates add £200-£800 to the project. Non-compliance risks closure by Environmental Health Officers, making investment in properly specified equipment essential for catering businesses.
When Do Commercial Kitchens Need Extractor Fans?
Every commercial kitchen producing steam, grease, or odours requires extraction to meet health, safety, and fire regulations. Small cafes might manage with a basic wall fan, but restaurants, takeaways, and catering operations need ducted systems under canopy hoods.
The cost of installing an extractor fan in a kitchen scales with the volume of cooking activity and seating capacity.
Our guide to the benefits of commercial extractor fans explains how effective ventilation supports compliance, staff wellbeing, and business continuity.
Frequently Asked Questions
How much does it cost to install a ducted kitchen extractor fan?
Ducted commercial kitchen extractor fan installation costs £500 to £2,000+, including labour, fire-rated ductwork, dampers, and commissioning. Longer duct runs, multiple bends, and external terminations increase costs. Simple inline installations in accessible voids sit at the lower end of the range.
Do commercial kitchens need planning permission for extractor fans?
Planning permission is usually not required for extractor fans in commercial kitchens, as they fall under permitted development. However, listed buildings, conservation areas, or installations affecting neighbouring properties may need approval. Always check with the local planning authority before starting work.
How often should commercial kitchen extractor fans be serviced?
Commercial kitchen extractor fans require monthly grease filter cleaning and annual full servicing including duct cleaning, motor inspection, and belt checks if applicable. Quarterly inspections are recommended in heavy-use environments. Servicing costs £150-£500 per visit depending on system complexity.
What size extractor fan do I need for a commercial kitchen?
Extractor fan size depends on kitchen volume and cooking load. Commercial kitchens require 20-30 air changes per hour per DW/172, typically 500-5,000 m³/h total capacity. A 20m² kitchen might need 1,000-2,000 m³/h split across multiple units under hoods. Ventilation engineers calculate exact requirements based on menu and occupancy.
Can I install a commercial kitchen extractor fan myself?
No. Commercial kitchen extractor installations must be carried out by qualified contractors to meet DW/172, electrical regulations (BS 7671), and fire safety standards. Electrical work requires a Part P qualified electrician, while ductwork and commissioning demand specialist ventilation knowledge. Self-installation risks non-compliance and insurance invalidation.