Independently Rated A Diamond Certified company rated Highest in Quality and Helpful Expertise®

Keith Roofing Is
Diamond Certified

Diamond Certified isn't a badge you buy or a review page you curate. An independent research firm called our past customers — chosen at random from our own files, not hand-picked by us — and asked them what the work was actually like. Here is what they said, published in full and unedited.

91Verified Phone Surveys
90+Required Quality Score
2951Certificate Number
1952Roofing the South Bay Since
What It Actually Takes

Why This Rating Is
Hard to Fake

Diamond Certified is awarded by American Ratings Corporation, which has been rating local companies since 2001. A company cannot pay its way in, cannot choose which customers get surveyed, and cannot remove a bad response once it's published.

STEP 01

A Random Sample

Roughly 400 past customers are pulled at random from our complete customer files — every job, not a shortlist we submitted. We have no say in who gets called.

STEP 02

Real People, By Phone

Each one is interviewed confidentially over the phone. No anonymous accounts, no duplicate profiles, no incentivized reviews — only verified customers who actually hired us.

STEP 03

A 90 or Better

To qualify at all, a company has to score 90 or above on a 100-point scale for Quality and Helpful Expertise. Most companies that apply never clear that bar.

STEP 04

Credentials Verified

Workers' compensation, liability insurance, state licensing and the complaint file are all independently checked — not simply taken at our word.

STEP 05

Rated Continuously

The surveying doesn't stop at the award. Customers keep being called, and a company that stops delivering loses the certification.

STEP 06

Backed by Mediation

We've agreed to participate in Diamond Certified mediation, and the award carries their Performance Guarantee — real recourse if something ever goes wrong.

Read It Yourself

Our Live
Company Report

This is fed directly from Diamond Certified — the ratings dashboard, our verified credentials, and every one of the 91 survey responses, word for word. We don't control what appears here.

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A Diamond Certified company rated Highest in Quality and Helpful Expertise® Checked, Not Claimed

Every Credential
Independently Verified

Plenty of roofing companies say they're licensed and insured. As part of the Diamond Certified process, each of these was confirmed by a third party before the award was issued — and is re-checked to keep it.

The Diamond Certified Performance Guarantee

If a dispute can't be settled between us directly, Diamond Certified will mediate. Should mediation fail because we didn't honor our contract or industry standards, they'll refund your purchase price up to $1,000. Mediation must be started within six months of purchase.

Workers' Compensation
Liability Insurance
License Verification
Business Practices
Current Complaint File
Legal & Finance
CA CSLB License #1118418
BBB A+ Accredited
Put Us to the Test

Hire the Roofer
Your Neighbors Rated

Ninety-one San Jose homeowners and property managers were called and asked about us. Get a free, no-obligation estimate and find out why they answered the way they did.