cost to install patio extension with pavers

Idk where you are located, but in the dfw area pavers are being installed for anywhere between $15 and $20 a foot. That includes all materials and labor

I wouldn't know what labor costs because I spent Saturday digging out mine with a shovel. I spent about three hours one Saturday measuring it out and tilling it up, and I spent about 6 hours this past Saturday digging it all out. Overall its a 202 sqft area that I dug 7in deep. Next I'm going to grade it about 1in every 4 feet to make sure it drains out of my yard. Then pour the gravel and sand, and finally, lay the pavers. I did everything myself, so I think you and two other people could do all the prep work for yours in one Saturday.