Average Hourly Cost: The average hourly cost of a ventilation system installation in a conservatory construction contractor is approximately $100 per hour.

Cost Breakdown: The cost of the ventilation system installation will depend on the type and quality of the components, the complexity of the job, and the location and service provider. This cost breakdown includes the cost of the ventilation system, the installation, and any additional labor and materials that may be required.

Factors Affecting Cost: The cost of the ventilation system installation will be affected by the type and quality of the components, the complexity of the job, and the location and service provider. The type and quality of the components will affect the cost of the installation, as higher quality components will be more expensive. The complexity of the job will also affect the cost, as more complex installations will require additional labor and materials. The location and service provider will also affect the cost, as some contractors may charge more depending on the area they are servicing.