Answers

Tree removal is not normally a part of what we do at Blackdog Builders, but I thought I would look up some information for you and offer some advise. First of all, if the tree is too close to your house where the branches are reaching over your roof, you may need to replace your roof more often due to debris or branches. This is a bigger problem of course with pine and it's sap, but an oak tree will produce acorns and will also shed leaves every fall. This may damage your roof, and if you have a gutter system, it will need to be regularly cleaned. 

After some research, it seems that oak is one of the more expensive species of trees to remove because it is a hardwood and usually grows very tall. The following is provided by treeremoval.com:

"Oak is one of the strongest, toughest woods out there. For that reason, tree removal services often charge a premium to tackle them. Oak trees are also very tall. The average height of a healthy oak tree is 60 feet. You can refer to the price guide above to see that you will pay between $200 and $1,000 to have an oak tree removed. Due to the fact that oak is such a solid, thick wood, your total price will probably fall on the higher end of the scale. Make sure you have a really good reason to have it removed before spending that kind of money!"