Add a fine abrasive to the sealer. Experts in the field, like Tim McPherson, Excalibur Designs In Concrete Inc., adds silica flower or 120 grit sand to the sealer. He applies the sealer with a roller.

If your concrete patio has seen better days, now is the perfect time to give it a makeover. Sealers past their prime can show up as chalky, cloudy or blistered.

Also, one of the sections has dropped a small amount, and we are having it raised. The mason also poured a 15-by-20-foot patio, and the very next day dark spots started showing up. His answer ...

This project will proceed much faster and easier if you stain your whole patio a single color. All you have to do is wet the concrete, apply the stain and back roll with a 3/8-in. nap roller to ...