Failed or missing membrane at door thresholds, blocked or high drains, cracked upstands, and penetrations for railings, AC pads or planters. Water then travels through screed and appears as stains below — often far from the entry point.

They share wet-area logic under tiles, but terraces are often larger, more UV-exposed and more furniture-heavy. Scope still needs continuous membrane, falls and outlets. See our balcony waterproofing and terrace waterproofing service pages for the matching brief.

Not always. Local overlays can work when height and substrate allow and failure is limited. Active under-tile leaks usually need strip-out so the new membrane bonds to a prepared deck. Inspection decides — not a sales default.

If moisture mapping confirms your balcony as the source, a continuous tested membrane should stop that path. If a roof, planter or stack slab also leaks, balcony works alone will not clear every stain. Diagnosis first.

Critical. Many field coats still leak at the door track because membrane was not carried under the threshold. A correct scope draws and installs that detail explicitly.

Usually yes with interior protection, dust control and phased access. Multi-tower jobs need building management approval and neighbour notices. Method statements state reopen times for each balcony.

Liquid wet-area or polyurethane systems with fabric reinforcement at corners and outlets are common under tiles. Exposed terraces need UV-stable topcoats. Product follows substrate and finish — not a single brand slogan.

Properly detailed systems often last many years with clear drains and intact upstands. Thin coats over failed layers may fail within a few summers. Lifespan tracks prep and detailing more than brochure claims.

Where practical and building rules allow, hose or flood testing after membrane and before final finishes verifies the deck. Not every cantilever can hold deep water — we state the test method in the quote.

Strip-out assumptions, primer, membrane thickness, reinforcement, threshold and upstand detailing, drain works, testing, tile or finish reinstatement, protection and warranty terms. Field coat per sqm alone is not a complete scope.

They must be detailed. Pads and planters often pierce membranes. We either integrate sealed plinths or relocate units during works. Leaving penetrations undocumented is a common repeat-leak cause.

Bylaws vary. Private balcony membranes often sit with the unit owner; common podium edges may sit with the association. Inspection photos and marked drawings help resolve disputes with evidence.

Call or WhatsApp +971 52 126 9889, email waterproofinginuae@gmail.com, or use the request quote form. Share balcony photos and the stained area below so we can prioritise diagnosis.

Read our balcony and terrace waterproofing blog guide, then the balcony waterproofing and terrace waterproofing service pages, plus the main waterproofing FAQ for cost and contractor questions.