WIS engineers, managers, and field crews have extensive experience with structural upgrades and modifications. When tower owners are faced with modifying their asset, safety is paramount. WIS prepares complete rigging and safety plans for all tower modification efforts along with the utilization of temp bracing and templates for all tower member replacement. Our crews take great care working in and around live equipment and take all necessary precautions to ensure coax and antennas are not damaged during the modification. Having experience with microwave, two-way, broadcast, and many other industry disciplines, WIS is your single source for complicated modification projects involving equipment relocation.




Tower mod

Structural Modifications

WIS proudly offers expert design and installation services for the following modification types:


  • Foundation upgrades
  • Base plate strengthening
  • Tower leg reinforcement
  • Internal lacing additions
  • External bracing
  • Diagonal and horizontal member replacement
  • Rust abatement
  • Hardware replacement
  • Antenna system relocation (TEMP or PERM)
  • Monopole upgrades
  • Rooftop steel frame upgrades
  • Rooftop beam replacements/upgrades
  • Frame and screen replacement and upgrades
  • Tower extensions