Depending on the type of system, roof area and complexity of installation, the total cost can increase by 10-20%. This is a great additional investment that will effectively cope with heavy snowfalls and protect your roof from damage during the winter. The snow guard system will provide additional security to your home and maintain the condition of the roof. The snow guard system is an additional cost of $2000 – $5000 for your project, which extends the life of the roof and protects your home.