Auto Warranty
Top Companies in 2026
Diamond Warranty vs Guardian Auto Shield
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- Contracts backed by AmTrust Financial Services
- Available through a nationwide network of dealerships
- Multiple coverage levels ranging from powertrain to exclusionary protection
- Additional benefits available, including roadside assistance and rental reimbursement
- Nearly two decades of experience in the vehicle service contract industry
- Strong customer service
- Low deductibles
- Coverage for luxury cars
- Detailed sample contracts are difficult to access before purchase
- Mixed customer reviews with recurring complaints about claims and communication
- Limited digital tools, with no mobile app or live chat support
- Limited added benefits
- No sample contracts
Diamond Warranty is a Pennsylvania-based vehicle service contract provider founded in 2006. Operating through a nationwide network of dealerships, they offer several levels of protection designed to help drivers manage repair expenses after factory warranties expire. Their plans range from basic powertrain coverage to broader exclusionary contracts, with options for used vehicles, certified pre-owned models, and drivers seeking long-term protection.
Many contracts are backed by AmTrust Financial Services and may include benefits such as roadside assistance, rental car reimbursement, and trip interruption coverage. The company focuses on dealer-distributed service contracts rather than direct online sales, which means pricing and contract details often vary by vehicle and dealership. Diamond Warranty maintains an A+ rating from the Better Business Bureau, though they are not BBB accredited.
Customer feedback across review platforms is mixed, with experiences ranging from praise for responsive representatives and straightforward claims to complaints involving coverage disputes and communication challenges. With nearly two decades in the industry and a diverse selection of plans, the provider offers several features worth examining more closely before making a decision.
Guardian Auto Shield, once a prominent figure in the auto warranty industry, shut down in 2023. During their operation, they positioned themselves as a reputable extended auto warranty provider. Founded in 2015 and headquartered in California, the company was dedicated to providing excellent vehicle protection through their extended auto warranty contracts. Noteworthy features that enhanced Guardian's offerings encompass extensive coverage for diverse vehicle makes, a customer-focused approach emphasizing robust customer service, low deductibles, and a plan that is optimal for luxury vehicles. The company's emphasis on affordability made it an appealing choice for budget-conscious consumers. While Guardian excelled in simple claims processes, certain drawbacks existed, such as an absence of sample contracts and fewer additional benefits than competitors. The lack of clear information about coverage and pricing on the company's website raised concerns about its transparency. It is important to note that Guardian Auto Shield is now out of business. Despite their closure, their vast experience and dedication to personalized coverage plans made them a compelling option for those seeking reliable vehicle protection in their operational days.
- BBB Rating : N/R (unaccredited)
- Maximum Mileage : Up to 100,000 miles
- Number of Plans Available : 6
- Operating Status : Active
- Deductible Range : Quote-based
- BBB Rating : N/R
- Maximum Mileage : Undisclosed
- Money-Back Guarantee : Yes
- Number of Plans Available : 3
- Waiting Period : 30 days
- Operating Status : Inactive
- Most plans begin on day one and mile one rather than requiring a standard waiting period
- Specialized coverage options for certified pre-owned vehicles and long-term 5-year/100,000-mile powertrain protection
- Dealer-focused distribution model that allows coverage to be bundled into vehicle financing
- Broad plan portfolio that includes both stated-component and exclusionary coverage levels
- 24/7 Roadside assistance
- 24/7 customer support
- 48-month-long contract
- Free Quotes
- High-mileage
- Exclusionary
- Powertrain
- $0 deductible option—Undisclosed
- Commercial/rideshare
- EV/hybrid components
- No waiting period—Undisclosed
- Option with free maintenance benefits
- Transferable
- High-mileage
- Exclusionary
- Powertrain
- $0 deductible option—Undisclosed
- Commercial/rideshare
- EV/hybrid components
- No waiting period—Undisclosed
- Option with free maintenance benefits—Undisclosed
- Transferable—Undisclosed
- 24/7 roadside assistance
- Any licensed repair shop
- Direct shop payment
- In-network repair network
- Mobile app for claims
- Online claims portal
- Trip interruption coverage
- 24/7 roadside assistance—Undisclosed
- Any licensed repair shop—Undisclosed
- Direct shop payment
- In-network repair network
- Mobile app for claims—Undisclosed
- Online claims portal—Undisclosed
- Trip interruption coverage
- Phone
- 24/7 customer support
- FAQs / Educational resources
- Live Chat
- Mobile Application
- Online quote without phone
- Sample contracts online
- Phone
- 24/7 customer support
- FAQs / Educational resources
- Live Chat
- Mobile Application
- Online quote without phone—Undisclosed
- Sample contracts online
- Contract (lump-sum) payments
- Pay-in-full discount
- Month-to-month payments
- Cancellation fee—Undisclosed
- Multi-vehicle discount
- Price lock guarantee
- *Not all payment methods are available in all states
- *Some payment methods may incur additional fees
- Contract (lump-sum) payments
- Pay-in-full discount
- Month-to-month payments
- Cancellation fee
- Multi-vehicle discount
- Price lock guarantee
- *Not all payment methods are available in all states
- *Some payment methods may incur additional fees
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