Cost to put new roof on a !3 year old Central Texas house?

We have approximately 2300-3000sq ft of roof... The next door neighbor had his roof put on two years ago for $1700 ...He has about the same size roof as ours.. We recently started getting roof estimates...The first company without insurance or bonding told us the cost would be $3800.. Then we... show more We have approximately 2300-3000sq ft of roof...

The next door neighbor had his roof put on two years ago for $1700 ...He has about the same size roof as ours..

We recently started getting roof estimates...The first company without insurance or bonding told us the cost would be $3800.. Then we learned it's NEVER wise to go with the contractors...

Yesterday the second company who has bonding and licensing told us they could replace our roof for $4800...

We have three more roof bids to get...We always get at least five bids on any project....We also know to make sure the company has insurance and workers comp on their employees...

Anyone know how they estimate the price of a roof and what the ball park figure to put a roof on would be???

Thanks All....
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