HVAC installation costs are influenced by location, complexity of the installation, local labor rates, equipment specifications, and any additional work required.
To get an accurate estimate for your specific situation, it's best to contact local HVAC contractors or Trane dealers in Northern California. They can provide you with a detailed quote after assessing your home and its existing ducting, considering any specific requirements or modifications needed for your installation.
When obtaining quotes, make sure to get multiple bids from reputable contractors, as prices can vary between companies. Additionally, ensure that the contractor is licensed, bonded, and insured, and check their customer reviews and references to ensure you're working with a reliable and experienced professional.