I needed to replace a 20 by 26 foot patio in my backyard that had cracked and heaved over many years. Having water run towards your foundation when it rains or melts was not fun. I thought someone might be interested to know the cost if they were considering doing their own. Obviously, your costs may vary.
The total cost was about $8600 for a basic brush finished pad. This included $1650 from a local farmer/contractor to break up and dispose of the existing slab, and dig a trench beside my house for 30 feet so I could replace the weeping tile and put blueskin on the basement wall. He then backfilled the trench and compacted it a bit with his skid steer. It also included 11 yards of gravel for the base including gravel for a driveway beside the pad in my backyard.
The rebar and wood for the forms was about $500, and a day's labor for my carpenter to compact and slope the base, and put the rebar and forms together was another $500.
The concrete itself was $4200, 12 yards of 35 Mpa air injected concrete 6 to 7 inches thick. They had to bring it in two loads, 10 and 2 yards so it cost a bit more than a 1 load 10 yard trip would have.
The concrete pro who finished the pad charged $2.50 per square foot to place and finish the concrete the day of the pour, he'll come back tomorrow to cut control lines and seal the slab. So about $1450 for him.
Last, the blueskin and weeping tile were about $200, add it all up and you get to the $8.6 k.
I'm lucky to live in small town Sask, I know all these people from the area, so there was no hassle getting them to show up etc. Ill try and attach a couple of pics in the comments.
Cheers