Yes, a homeowner insurance company has the right to cancel your policy under certain circumstances. These circumstances can vary depending on the terms and conditions of your policy and the laws and regulations of your state. Some common reasons for cancellation include non-payment of premiums, misrepresentation of information on the application, failure to maintain the property in a safe condition, or an increase in risk that the company is not willing to cover. However, insurance companies are typically required to provide notice of cancellation and an explanation for the decision. It is important to review your policy and understand the terms and conditions to avoid any potential cancellations. If your policy is cancelled, you may need to find alternative coverage to protect your home.