There is no way we can give you a real answer to this question. Labor costs vary greatly from place to place and there is no way to tell what problems may be encountered. What might be a fair price in one place, might be very low in another and very high somewhere else. Your best course of action is to get at least 3 estimates, making sure each estimate is for the same amount of work and materials. Be very suspect if one estimate is either very much lower or very much higher. Too low may indicate the contractor isn't very experienced, too high might mean the guy really doesn't want the job but will do it for premium money. Experienced contractors should be fairly close.