Lowered Monthly Premiums
If an insurance carrier is in the business of offering bundled insurance policies, they’ll commonly grant discounts for holding one. Even without bundling, many providers give discounts to people who hold more than one policy with a company. Since a bundled policy fulfills that prerequisite, they’ll commonly offer significant savings by combining two policies into one.
Deductible Savings
When a big accident happens that damages both your home and automobile (a garage fire, for instance), some insurance providers will only charge the policyholder with one deductible. In contrast, a policyholder with separate insurers for home and auto will be responsible for paying two separate deductibles.
Easier Management
Time is money, so having two insurance policies rolled into one allows the policyholder to only deal with one provider. This means less worry about lapses in coverage due to missed payments, because you’ll only be making a single payment for a multi line policy.