Gradient Licenses

Gradient Construction has the following licenses:


  • Maryland Home Improvement Contractor’s License (MHIC) #121392
  • Maryland State Home Improvement Contractor Salesman License
  • Maryland State Board of Plumbing – Journey Plumber/Gas Fitter
  • Sand Mound Septic Systems
  • At Grade Sand Mound Septic Systems
  • BAT Septic Systems
  • Maryland State Master Plumber
  • WSSC Master Plumber

Anne Arundel County

  • Disposal Systems Contractor’s License
  • Utility Contractor’s License Calvert County
  • Sewage Disposable System Installer’s License

Prince George’s County

  • Percolation, Testing and Construction or Remodeling of Sewage Disposal Systems License
  • Utility Contractor’s License, Washington Suburban Sanitary Commission