Auto Warranty
Top Companies in 2026
CARCHEX vs Diamond Warranty
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- Five coverage levels
- Choice of licensed repair facilities
- 24/7 roadside assistance
- Rental and trip interruption benefits
- 30-day money-back guarantee
- 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 published plan pricing
- Claims handled by third-party administrators
- Contract terms vary by administrator
- Mixed customer feedback
- 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
Founded in 1999 and headquartered in Baltimore, Maryland, CARCHEX is a vehicle protection broker that connects customers with vehicle service contracts administered by third-party providers. Their current lineup includes five levels of coverage, ranging from basic Powertrain protection to the exclusionary Titanium plan, along with dedicated coverage for eligible electric vehicles. CARCHEX also offers access to licensed repair facilities and benefits such as towing, rental car reimbursement, and trip interruption coverage on eligible plans. The company has a long history in the extended warranty business and has received recognition, including multiple appearances on the Inc. 5000 list. Their Better Business Bureau profile currently carries an A+ rating, though CARCHEX is not BBB accredited. Customer feedback is mixed. Trustpilot currently lists a 3.2 out of 5 rating based on more than 1,500 customer reviews, while BBB customer ratings are considerably lower. This review looks deeper into CARCHEX’s plans, costs, contract terms, advantages, drawbacks, and customer experiences.
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+ (Unaccredited)
- Maximum Mileage : 250,000 miles
- Money-Back Guarantee : Yes
- Number of Plans Available : 5
- Waiting Period : Varies by contract
- 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
- Multiple contract administrators
- Dedicated electric vehicle coverage
- Partnerships with CARFAX, Kelley Blue Book & RepairPal
- Coverage options for vehicles over 100,000 miles
- Coverage terms available for up to 10 years
- 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
- Commercial/rideshare
- EV/hybrid components
- No waiting period
- 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
- Transferable
- 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
- 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
- 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
- Sample contracts online
- 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
- 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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