Property Insurance – Costs/companies?

Hey all – just closed on a house near Houston, currently the state I live, with a house value of $400,000 my property insurance is $600 a year. For a house valued at even 3/4 of that in a non flood zone, the lowest I've been quoted is over 5 times that amount at $3400 a year. Not only that the year my current home was built was 1963 and the new home 2007.

Is anyone getting a better number with a reputable company?

Thank you!