Auto Warranty
Top Companies in 2026
CNA National Warranty vs Diamond Warranty
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- Multiple deductible options
- Tire and wheel coverage
- Affordable payment plans
- Wide range of coverage options
- Nationwide coverage
- Travel and lodging reimbursement
- Transferable contracts
- 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
- No quote engine
- No sample contract
- Some contracts might not be renewable
- Out-of-pocket expenses
- Not an administrator for all of its products
- Limitations to extra benefits
- Not all contracts qualify for transfer or cancelation
- 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
CNA National is a provider of extended auto warranties with over 30 years of experience in the industry. They offer a wide range of coverage options to fit your needs, including bumper-to-bumper coverage, powertrain coverage, and roadside assistance. You can purchase their extended auto warranty from your local dealership. CNA National is also a 26-time Dealers' Choice Award winner, which is a testament to their high level of customer service. Numerous levels of coverage are available for CNA National Warranty Services to meet individual needs. Roadside assistance, rental car reimbursement, travel and hotel reimbursement, Limp-along support, and wheel protection are all included in certain plans of their policies. Furthermore, they offer coverage for several types of automobiles, ensuring that their services are accessible to various clients.
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.
- BBB Rating : A+
- Maximum Mileage : Undisclosed
- Money-Back Guarantee : No
- Number of Plans Available : 4 with 2 upgrade options
- Waiting Period : Undisclosed
- Operating Status : Active
- BBB Rating : N/R (unaccredited)
- Maximum Mileage : Up to 100,000 miles
- Number of Plans Available : 6
- Operating Status : Active
- Deductible Range : Quote-based
- Electric vehicle coverage
- Limp-along assistance
- Less exclusions than other warranties (like wear and tear and pre-existing conditions)
- 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
- High-mileage
- Exclusionary
- Powertrain
- $0 deductible option—Undisclosed
- Commercial/rideshare—Undisclosed
- EV/hybrid components—Undisclosed
- No waiting period—Undisclosed
- Option with free maintenance benefits—Undisclosed
- Transferable—Undisclosed
- High-mileage
- Exclusionary
- Powertrain
- $0 deductible option—Undisclosed
- Commercial/rideshare
- EV/hybrid components
- No waiting period—Undisclosed
- Option with free maintenance benefits
- Transferable
- 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
- 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
- Phone
- 24/7 customer support—Undisclosed
- FAQs / Educational resources
- Live Chat
- Mobile Application—Undisclosed
- Online quote without phone—Undisclosed
- Sample contracts online
- Phone
- 24/7 customer support
- FAQs / Educational resources
- Live Chat
- Mobile Application
- Online quote without phone
- Sample contracts online
- Contract (lump-sum) payments
- Pay-in-full discount
- Month-to-month payments—Undisclosed
- Cancellation fee—Undisclosed
- Multi-vehicle discount—Undisclosed
- Price lock guarantee—Undisclosed
- *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—Undisclosed
- 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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