3 Different Types of Roofing Companies

When shopping for a commercial roofing contractor, understanding the three types of companies helps you find the right fit for your project.

Type 1: General Commercial Roofing Contractors

These contractors install and replace standard commercial roofing systems — TPO, EPDM, modified bitumen, metal. They typically focus on new construction and full replacements. They may or may not offer coating restoration systems. If replacement is genuinely necessary, a qualified general commercial contractor is appropriate. Be cautious of contractors in this category who recommend replacement without thoroughly exploring restoration alternatives.

Type 2: Spray Foam Roofing Specialists

These contractors specialize in spray polyurethane foam application. They have the specialized equipment, training, and manufacturer approvals required for quality foam work. They typically also apply silicone coating systems. For restoration projects involving foam, this category of contractor is the most qualified. West Roofing Systems is a specialized spray foam and coating contractor with over 45 years in the field.

Type 3: Coating-Only Contractors

Some contractors specialize exclusively in liquid-applied coating systems (silicone, acrylic) without offering spray foam. For roofs that qualify for coating restoration only, these contractors can be appropriate. Verify manufacturer approval and experience with your specific substrate type.

Who to Choose

For restoration projects: seek a Type 2 or Type 3 specialist who is manufacturer-approved. For replacement: a qualified Type 1 contractor. Get at least two quotes from different contractor types and compare both the proposed solution and the cost — not just the number.