Consider credentials. Before you hire someone, consider his credentials. Membership in a trade or local business group, for example, isn’t a guarantee of quality work, but it shows a level of commitment and reliability on his part. Also verify whether the pro has the appropriate license(s). (You’ll find the licensing information in your state at the Contractor’s License Reference Site. Also check with the Better Business Bureau, the attorney general’s office in your state, or a local consumer-affairs agency to learn whether the contractor has a history of unresolved complaints.
You’ll spend between $500 and $3,000 or $1 to $3.50 per square foot to paint concrete. However, expect to pay $2 to $7 per square foot since concrete almost always needs a coat of primer first. Double that price if the concrete requires stripping. Concrete is porous. Sealing it not only helps blend foundations and walls with your home’s aesthetic, but also seals it against water. Repairing or resurfacing concrete costs $300 to $500 for every 100 square feet. House Painting