Answer:
For business and landlords, every 5 years. For residential homeowners, every 10 years.
✦ Only pay a deposit upfront and spread the remaining cost of your solar project for 24 months with 0% APR and 10 years free solar maintenance ✦ Claim Now: 4 easy steps to significantly lowering your energy bills through renewable technologies✦ Only pay a deposit upfront and spread the remaining cost of your solar project for 24 months with 0% APR and 10 years free solar maintenance ✦ Claim Now: 4 easy steps to significantly lowering your energy bills through renewable technologies