As the names suggest Monocrystalline and Polycrystalline are both types of solar cells that are made from crystalline silicon. Almost all quotes you will get when considering buying solar panels for your home will use crystalline solar panels.
In my humble opinion the choice between monocrystalline and polycrystalline solar panels is not something that you should lose too much sleep over when looking to purchase solar panels for your home. It is more important that you choose a good brand of solar panels. A good brand of solar panels is from a company that invests heavily in the quality of their manufacturing process and invests heavily in their reputation. Click here to see reviews of different solar panels to find the best solar panels.