Internal gutter conversions

Improve how water moves away from your roof.

Assessment and conversion options for ageing internal gutter systems, planned around the existing roof and building.

Internal gutter conversion on an Auckland roof

Why internal gutters need careful attention

Internal gutters collect water within the roof area rather than at its outside edge. When an older system is undersized, deteriorated, obstructed or poorly detailed, water may overflow into parts of the building where damage is difficult to see.

A conversion is not simply a replacement length of gutter. The existing conditions first need to be reviewed so an appropriate solution can be developed for the property.

  • Ageing or corroded internal gutters
  • Recurring leaks around the gutter line
  • Overflow or slow drainage during heavy rain
  • Roofing work that affects the existing drainage layout
  • Gutter systems that are difficult to inspect or maintain

A solution shaped around the building

During the site review, we consider how water reaches the gutter, where it discharges and how the proposed work connects with the existing roof and wall construction.

The recommended scope will depend on what is accessible and found on site. Where other building work or specialist advice is required, that should be identified before the conversion is scheduled.

What we consider

More than the visible length of gutter.

A useful assessment considers the complete route water takes across the roof and away from the building.

Existing condition

The gutter, roof edges, outlets and visible signs of leakage or deterioration are reviewed on site.

Drainage path

We consider how water enters the gutter and moves through outlets and downpipes during rainfall.

Roof integration

Proposed changes are planned in relation to the existing roof, flashings and adjacent parts of the building.

Our process

From the first warning sign to a defined scope.

We begin with the symptoms and existing conditions, then outline the work needed for the property.

  1. 01

    Tell us what is happening

    Share any known leaks, overflow, previous repairs and when the issue is most noticeable.

  2. 02

    Review the system

    We inspect the accessible gutter, roofing and drainage connections to understand the existing arrangement.

  3. 03

    Prepare the scope

    The proposed conversion work, relevant inclusions and known project conditions are set out for review.

  4. 04

    Coordinate the work

    Once approved, the project is scheduled around access, weather and any related roofing requirements.

Concerned about an internal gutter?

Tell us what you have noticed.

Share the property details and any known leak or overflow symptoms so our Auckland team can discuss the next step.