any contractors here do minor renovations?

[MarkoD]

You have to make sure there isn't power/water/drains running through that wall.

Then when you cut it, you'll have to frame the opening.

Then drywall or put panels on the 3 sides and the counter on the bottom

[monocus]

i can come by and take a look for you and give you a rough estimate

[wickedfrags]

also, if the window wall is load bearing, it would be prudent to support the ceiling perpendicular to the joists