Letterbox Replacement uPVC Door Service

The outer flap closes the opening on the weather side. The inner flap, brush arrangement or cowl helps manage the opening on the room side. A broken flap or badly fitting surround can allow draughts through even when the door's perimeter seals are doing their job.

A replacement needs to suit the door and allow post to pass without leaving the flap permanently held open. Draught-proofing features are considered as part of that choice, rather than as a promise that the entire entrance will become draught-free. If air is also coming around the leaf, our draughty uPVC door guide explains how to separate those gaps.

The size of the faceplate is not the same as the cut-out behind it. Door thickness, fixing positions and clearance for the internal part also affect compatibility. Two letterboxes that look similar from the street can need different fitting arrangements once those details are considered.

Send photographs of both sides of the letterbox and the whole door, with any existing measurements you can obtain safely. Do not enlarge the opening or remove the fitting simply to guess a size. The aim is to find a suitable replacement for the existing arrangement while keeping sound surrounding material intact.

In a uPVC entrance the letterbox may sit within an infill panel. In a composite door it is part of the leaf's existing construction. The condition of that surrounding material matters: replacing the flap alone will not restore a cracked panel or a fixing area that can no longer hold the fitting securely.

Where a uPVC panel is damaged, uPVC door panel replacement is a separate option to discuss. That is not the starting assumption for a worn letterbox. We distinguish the condition of the fitting from the condition of the door so that the proposed repair is proportionate to what has actually failed.

Tell us whether the problem is an open flap, draught, loose fixing or difficulty receiving post. Mention if the internal cowl catches the mail or if a part has broken off. These details help identify which element is at fault instead of treating every complaint as a problem with the door seals.

A free in-person quotation checks the dimensions and suitable fitting before work is agreed. There is no fixed letterbox price on this page because the required size and arrangement vary. We retain the sound door where replacement of the fitting is appropriate. If the leaf also catches or the lock has become stiff, describe that separately so it can be assessed as its own repair.