There are several reasons why builders, property managers, architects, engineers, designers might choose to research and obtain building materials directly from the manufacturer and then connect with the manufacturers recommended contractors, rather than going through a contractor first:

1. In-Depth Product Knowledge: Manufacturers have comprehensive knowledge about their products, including technical specifications, performance data, and suitability for specific applications. This level of detail can be crucial in making informed decisions, especially for specialized or high-end materials and projects.

2. Customization Options: Direct interaction with manufacturers often allows for customization options that might not be readily available through contractors. This is particularly relevant for tailored solutions.

3. Cost Savings: Purchasing directly from the manufacturer can result in cost savings, as it eliminates middleman or contractor markup.

4. Warranty and Support: Dealing directly with the manufacturer can ensure clearer communication regarding warranties, technical support, and after-sales service. This can be crucial for products that require long-term maintenance or have complex installation processes.

5. Product Availability and Lead Times: By contacting the manufacturer, buyers can get accurate information about product availability and lead times, which is vital for project planning and scheduling.

6. Comparative Shopping: Direct contact with multiple manufacturers allows buyers to compare products and prices more effectively, leading to more informed purchasing decisions.

7. Building Relationships: For buyers involved in large or ongoing projects, building a relationship directly with manufacturers can be beneficial for future projects or for obtaining professional advice.

8. Understanding Industry Trends: Manufacturers can provide insights into the latest trends, technologies, and innovations in the building materials industry, which can influence the buyers choices and project outcomes.