Gutter Helmet of Northern Minnesota installs Gutters, Gutter Helmet and Helmet Heat. Gutter Helmet has a performance warranty which separates us from the “no clog” filter products. A “no clog” guarantee only covers the gutter and the downspout! A performance guarantee covers the product that keeps the debris out. With filter products the homeowner needs to get on the ladder to keep the filter clean. At Gutter Helmet we don’t want our customers on a ladder, you simply call us and we will clean it at no cost to you. We have installed over 1800 jobs in northern Minnesota and Wisconsin with 0 complaints about the performance of our product. The first job Chuck did in 1985 still has a 100% guarantee. This is why Gutter Helmet is the best product.