What's causing my carpet to squeak?
What may be happening is the padding under the carpet is not attached to the floor. Since the installer could not hammer staple the padding to the tile (ceramic?) floor it should have been glued with an adhesive made specifically for carpet padding. Glue is applied to the floor so that a continuous bead of glue will contact the edging of the pad. Also, a less likely cause maybe the carpet itself is loose. To check, at the center of the room that is producing the noise, pinch the carpet nap and pull upwards. The amount of carpet that is pulled away from the floor should be minute. If not it will need to be re-stretched and the tackles checked.