Job Description. Job Description. A-1 Guarantee Roofing is a growing business in Springfield, MO. We have been in business for 32 years. We are a family owned and operated company focusing on residential Re-Roofing and Gutters. Our “GUTTER” division works on many different sizes of roofs—Residential and Commercial. Summary. Our Gutter Crew has an onsite gutter machine which they fabricate on the job site. We are currently seeking a Gutter Install...