Founded in 2007, Miersch Seals has been providing its services to Denton, NC and the surrounding area. Before Owning Miersch Seals, John Miersch has had 25 years of experience in the industry providing quality work across North Carolina. Miersch Seals is a Family Owned and Operated business. We offer excellent work at some of the most competitive prices. A fully insured business, we also offer full, free estimates.