Product and opening

  • Which exact manufacturer, line, model, operation, frame, glass, finish, hardware, screen, and grid pattern is quoted?
  • Does the NFRC label match the ordered size and configuration?
  • Which existing frame, trim, sill, flashing, and wall materials have been evaluated?
  • Why is insert or full-frame replacement proposed at each opening?

Company and contract

  • Who signs the contract, orders the products, performs the work, supervises the crew, and handles service?
  • What current license, registration, insurance, or permit documentation applies to this location and scope?
  • What is included, excluded, allowed for, or billed through a change order?
  • What payment milestones, financing terms when used, schedule conditions, and cancellation terms appear in the written agreement?

Installation and closeout

  • How will the opening be protected, flashed, insulated, sealed, drained, trimmed, and finished?
  • How are pre-1978 painted surfaces handled when applicable?
  • What operation, lock, glass, sealant, finish, and cleanup checks happen before closeout?
  • Who administers product, glass, labor, and installation-service claims after the project?