Mesh needs suitable tension without distorting the frame. Corners and long sides should be checked during fitting, following the material requirements. Over-tightening is not a way to strengthen an old frame, and loose mesh may reflect a retaining-channel problem.
Explain how the screen is accessed and whether removal is possible from a safe position. Upper-level or inaccessible screens may fall outside ordinary access. The quote should identify accepted screens rather than assume every window at the property can be reached.
Show hinges, rollers or catches as well as the mesh panel. A mesh replacement is different from correcting a damaged door frame or movement problem. Hardware work can be reviewed separately, while security-screen systems and specialist glazing remain excluded.
Fit suitable mesh and spline to an accepted sound frame, or install a compatible ordinary supplied screen and check its fit. Scope limits: Ordinary insect mesh and compatible screen frames only. No security screens, fall-protection claims, specialist glazing or inaccessible high-level work.