Home Owner policies come in 3 basic varieties HO-A, HO-B, and Ho-W. A is a fire and lighting policy - as in that's all it covers, just the box of the house for certain named perils like fire and lightning. B is more comprehensive, covers more perils and may have replacement cost on contents.
Ho-W is the most comprehensive and covers water damage. So 1st question, is it and HO-A, B, or W and what endoresements can be added?
Do I have full replacement cost on building and contents (this one is so important) it's the differance in getting enough money to buy a new couch and getting what your couch is actually worth.
How is water covered is also crucial. There is sudden loss - tub overflows, washing machine leak. That's almost alwats covered. Slow and repeated seepage - that's a slow leak that you dont find right away, like behind the shower wall or dishwasher. That has to be added by endorsement. And backup of sewers and drains.
Don't take a deductible higher than 1% of dwelling replacement cost. Or you will be out several thousand dollars the nest time you replace your roof.
No homeowner policy will cover flood or earth movement (earthquake) They have to be purchased seperatley. Flood through FEMA. FLood is any rising water, so if you live in a low lying area consider it. It's no more than $315 a yr unless you live ina 100 yr flood plain.
Go to your states department of insurance website. They should have a place where you can pick a few companies you are looking at and compare coverages side by side. They will also have a place where you can see consumer complaints and rankings of companies based on number of complaints. You can look at number of claims filed and $$$ paid out. That will give you an idea of who has best customer service and pays claims without hassle.
One warning I can give you....do not go with Allstate. They just changed thier policy to exclude replacement cost on your roof. SO, if you have a 10 yr old roof and get hit by a hailstorm, they will deduct 10 yrs of wear and tear off your roof. So, after deductible and depreciation, you will be left holding the bag to replace your roof. $8- $10,000