Discuss repairs and renewal of deck and balcony membranes with Altitude. The surface, drainage and connections to the building all need to be considered when water gets through.
A deck is more than its exposed surface. Door thresholds, edges, outlets and penetrations form part of the water-management detail. Altitude's membrane work includes decks and junctions, with the repair approach selected after the condition and construction are understood.
Describe visible splits, lifted areas, worn detailing or previous patches. Identify whether the membrane is exposed or covered. Do not remove tiles or other finishes to collect evidence for an initial enquiry; existing photographs and records are useful first.
Water appearing near a door or below a balcony does not prove the source is directly above the stain. Include the surrounding wall and door in your photographs. Investigation may need to consider more than one junction before a repair is scoped.
A small visible defect does not establish the full extent of the work. The membrane condition, substrate, drainage and compatibility of materials all influence whether a targeted repair or broader renewal makes sense. Ask for the reasons behind the proposed scope.
| What you see | What to record |
|---|---|
| Water collecting on the surface | Where it collects, when it clears and which outlets are nearby. |
| Damp below or beside the deck | The indoor location and the weather conditions when it appears. |
| A damaged edge or membrane joint | A safely taken photograph showing the surrounding detail. |
| Repeated patches | What was done, when, and whether the symptom returned. |
That cannot be decided from the visible finish alone. The existing system, condition and compatibility need assessment. Do not assume that another surface layer will address the water-entry path.
Decks and balconies have their own thresholds, edges and use requirements. If the source of the water is unknown, our leak investigation service can help define the problem before a repair is selected.
The proposed system and scope need to be established first. Ask for any applicable product and workmanship terms in the proposal; no blanket warranty is promised on this page.
Send the address, surface type and any history of leaks or repairs. We can discuss the investigation or waterproofing work needed next.
Service information: Altitude Maintenance services. Further reading: MBIE: decks, balconies and balustrades. Reviewed September 2026.