Diamond Certified® garage door companies have received high ratings for quality in customer satisfaction. Selecting such a company to install or repair your garage door guarantees problem-free service.
It is a rigorous 12-step certification by the American Ratings Corporation. A survey is conducted (by telephone) of a random sample of at least 400 past customers from a garage door company's database. They must score 90+ on a 100 scale in customer satisfaction and pass all credential-based ratings to become Diamond Certified®.
What are some important criteria a garage door company must fulfill to acquire the Diamond Certification®?
Madden Door & Sons is one of the few Diamond Certified® garage door companies in the Bay Area.
Contact Madden Door online or call us at 925-357-9781 for guaranteed quality service from a Diamond Certified® garage door company in the Bay Area.
Absolute customer satisfaction has always been our top priority. Whether it's unique door styles, ongoing repair or selecting the right garage door opener, you'll always get highly personalized, first-class service. For the past 35 years we've built a reputation for cost-effective garage door solutions tailored to your needs.
Being Diamond Certified® is no small achievement. Honesty and exceptional service are the hallmarks of our family-run business.
Contact us for quality service from a Diamond Certified® garage door company in the San Francisco Bay Area.