Here at CSS Finish & Stairs We Take Pride in Providing the Best Interior Trim Service to the Covina CA Area. Our Specialties Include Interior Rails, Wall Paneling, Wainscoting, Interior Stairs, Stair Rails, Stair Contractor, Stair Cases. Some Other Services We Provide Are Complete Finish Carpentry, Railings and Iron Stair Cases. Please Give Us a Call Today for Your Estimate.