To start an exterior home improvement business, you need to have a clear vision for your business growth and target market. Specializing in a specific aspect of home improvement can help you stand out. You also need to review your resources, including scaling up your operations, hiring employees, and investing in technology. Building a strong team and trusting them to do their job is crucial. Additionally, investing in word-of-mouth marketing, seeking out new opportunities, using technology to accelerate growth, and taking calculated risks are important steps for success.