Cement Door Sill Repair

We have a metal threshold over a concrete sill and our front porch is a concrete slab about 4 x6.

Cement door sill repair.

Cut it with a hacksaw. Cut the new door sill to size and bevel the outer edge. Slide the threshold underneath the doorstops and position the notches you cut around the door jambs. If there s carpeting trim the carpet where frayed material hangs loosely.

The aluminum door threshold should sit level on the sill and join to it with a waterproof flexible and adhesive sealant polyurethane. Drive a new 3 16 by 1 inch concrete anchor into each of the holes with a hammer. Then test the threshold for fit. Fit the new door sill in place under the door frame.

If i raise the concrete pour mounting the sill i might be able to cantilever and extend the lip of the sill about 75 1 into the air over the exterior brick landing. Install a cover alone or purchase a cover and sill combination. Hold the new door sill in place with construction adhesive and fasteners. Paint or stain the new door sill.

If it prevents the door from closing comfortably you can plane down the door or lower the threshold. Remove all debris from the concrete slab. We ve been having some issues with water leaking into our basement under our front door. Lay a bead of caulk along what will be the back edge of the threshold.

Lift the threshold out and drill 1 1 2 inch deep holes at each drill tip mark on the concrete. Caulk around the outside of the door sill. 2 mix a moderate amount of liquid detergent with 1 quart of water in a. Tap it snugly into position using a rubber mallet.

Position the old door sill on the new sill and trace around it. There are a number of weatherproofing issues we need to address but the most urgent is the concrete sill under the door which has been crumbling for a while and presumably is the source of our leak. When the saddle is in place restore the door jamb adding calk so that it fits nicely. Remove the old door sill from beneath the door frame.