I work at a smaller municipal airport and need your help. The concrete inside some of the plane hangars is crumbling at the straight lines where one giant slab of concrete touches up against another ...

Q: Our house has concrete slab floors, no basement or crawl. Our air conditioner and water softener used to drain to an opening in the floor in the utility closet, but the drain is stopped up. I was ...

Q: Our house has concrete slab floors, no basement or crawl. Our air conditioner and water softener used to drain to an opening in the floor in the utility closet, but the drain is stopped up. I was ...