ASP (Previously Summit Mechanical Service) was founded in 2000 to provide plumbing, heating, ventilation and air conditioning services primarily to residential customers in Duluth and surrounding areas. In 2001 the business increased its scope to include light commercial and multiple unit projects. ASP has expanded to become one of the leaders in providing prompt, professional plumbing and heating services to both new and remodeling residential, and commercial projects, specializing in custom radiant/in-floor heating systems and also forced air, ventilation, and air conditioning. In 2019 ASP and Summit Mechanical merged to form: ASP -All Service Providers.