It really starts with what locks are on your doors now. If you are only adding or replacing one lock we would try and determine what locks you have now. If they are quality we would replace with the same manufacturer. If they are a knock off cheap set we would recommend Schlage, Kwikset for normal usage. For decorative hardware we would recommend Emtek or Baldwin.
Some of these products are available at the Home Center cheaper than we can supply them to you. We offer no warranty on these products and if you do not have the correct parts we will charge you for a return trip. If we supply them we honor the factory warranty, if we make a mistake on the ordering we eat the costs. We offer a labor warranty as well if we supply and install the parts. Attached is our warranty policy as well.
We support USA products, unfortunately a lot of our products are assembled in Mexico and shipped in to USA. Some higher end products are still assembled in USA. New designs and finishes are available now so you have a lot of options between all the lines. You need to find a style and finish you like then we can see if it will fit on your doors.