The 2021 Diamond Certified Directory is Now Being Delivered!

Only Top Rated Companies Earn Diamond Certified. Company Performance is Guaranteed.

The 2021 Diamond Certified Directory is now being mailed to more than 800,000 homes throughout the Greater Bay Area. Your South Bay/Peninsula edition presents full-page profiles of each company that has scored Highest in Quality and Helpful Expertise® in the most accurate ratings program in Northern California. If you would like a free Diamond Certified Directory mailed to you, please visit diamondcertified.org/membership.

NEW INSIDE: Diamond Certified Expert Contributor Tips

You’ll gain knowledge and become a savvier consumer by reading the tips in the back of your directory. You also get free access to hundreds of Expert Contributions at diamondcertified.org—just choose “Expert Advice” on the top menu.

The Most Accurate Ratings

When you choose a Diamond Certified company, you can rest assured knowing you’re working with dependable people who care about customer satisfaction. You’ll never be fooled by fake reviews because all research is conducted via live telephone surveys with real customers, and Diamond Certified companies must score 90+ on a 100 scale in customer satisfaction and Helpful Expertise and pass a credential-based rating to earn and maintain the prestigious award.

The Diamond Certified Performance Guarantee

If you’re dissatisfied with the performance of a Diamond Certified company and try unsuccessfully to resolve the issue, contact us within six months of your purchase and we’ll provide full mediation. If the mediation fails to produce a mutually agreeable solution, we’ll refund your purchase price up to $1,000—it’s that simple.

To order your free 2021 Diamond Certified Directory and become a Diamond Certified Preferred Consumer (always free), go to diamondcertified.org/membership or call (877) 581-8133.