To estimate the cost one would need to measure the size of the repair to determine the amount of concrete necesary. Concrete is basically cheap $5.00 for 60 lbs.Then determine the number of hours at about $15 per hour.
You would begin by determining whether the wholw porch or just a portion of the porch is in need of repair. once determined, you would need to find the square footage of the area as well as the thickness of the porch itself.
To begin with you have to figure out everything you will need as well as the labor costs then you have to figure out how much of everything you will ned then sit down and ass al thos things up and that will give you your final caost of the repair.
The best way to estimate the cost of Concrete Porch Repair is to call a Hydrocrete Pumping company and have them come out and give you an estimate. Otherwise you'll have to use the old fashioned method of Time and Material. Take the cost of your material, plus the cost of the time to perform the labor.
You would have to measure the porch and come up with the height, width, and length. Then multiply all three of them, and that will get you the area of the porch. From there you multiply that by the cost of the concrete and labor.