About Us > Our Credentials > Manufacturer Certifications

At American Custom Contractors we know that high quality products are only a part of the story.  We know that homeowners also care about working with a company that has the training and skill level to be able to install these products according to the specifications of the manufacturer.  That is why we have taken the steps to become certified by:

• James Hardie: We are the second company in Maryland to become a certified installer of James Hardie fiber cement products.  This required an extensive application process and check of our credentials, including inspection of completed projects, confirmation of our insurance coverage, submittal of detailed business plan and a list of references and testimonials from past customers.
• GAF: We are proud to be a Master Elite Contractor, a certification earned by fewer than 2% of all roofing contractors in the nation.  We are eligible to offer the GAF Golden Pledge Warranty as a result. 
• Certainteed: We are a Select Shingle Roofer which allows us to offer Certainteed's Sure Start Plus Extended Warranty

Our staff also participates in on-going product & installation training sessions with a variety of manufacturers, including:

• Andersen Windows
• Soft Lite Windows
• Peachtree Windows & Doors
• Eliminator Siding
• Enviroshake Synthetic Cedar Roofing
• Sherwin Williams Paint

Our promise to homeowners is simple: We will treat your home with the respect it deserves, we will minimize any disruption to your life and we will deliver exactly what we promise.  Contact us today to discover how you can have a new roofing, siding or window system installed in your home!