In this episode of Building Loved Businesses, host Nathan Schock interviews Spencer Sierra, the owner of Mainstream Home Improvement. Spencer shares his journey from working in the restaurant industry to becoming a successful entrepreneur in home improvement. He discusses the challenges of partnerships, the importance of understanding numbers and systems, and how to create a customer-centric culture. Spencer emphasizes the significance of customer experience, the power of reviews, and the need for continuous improvement in business operations. He also shares his vision for the future of his company and the importance of self-leadership in entrepreneurship.