Commercial Glazing Leak Investigation

Systematic leak diagnostics trace ingress pathways and define probable root cause through controlled testing, opening-up and evidence-led reporting, supporting accurate remedial specification and reducing repeat visits.

  • Review Of Drawings, Reports & Leak History
  • Internal & External Visual Inspections
  • Controlled Water Testing Where Appropriate
  • Targeted Opening-Up Of Seals, Cappings & Interface Details
  • Photographic Findings & Prioritised Remedial Proposals
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Commercial Glazing and Façade Leak Investigation

Water appearing inside a commercial building may have entered some distance from the visible symptom. Wind-driven rain can move through curtain wall drainage paths, failed or displaced gaskets, sealant joints, pressure components, glazing pockets, roof junctions or perimeter interfaces before it reaches the internal finish. Repeating a seal at the wet area without understanding that route can conceal the symptom temporarily while leaving the entry point unchanged.

Alu-Glaze begins commercial glazing leak investigation by mapping internal staining or damage and correlating it with the external elevation, levels, joints and adjoining systems. Rain and wind history, drawings, previous reports and repair records can help narrow the possibilities before glass, frames, seals, gaskets, caps, drainage and interfaces are inspected. Focused glazing evidence can be recorded through glazing surveys and inspections, with confirmed system defects directed to curtain wall repair or glass façade remedial works.

The investigation follows a systematic diagnostic sequence intended to trace ingress pathways and define the probable root cause. Photographs, test observations, weather history and location references establish traceability between the visible symptom, each test area and the likely route, supporting an accurate remedial specification and reducing repeat visits caused by untargeted sealing.

Planning a proportionate glazing leak investigation
Full-height glazed curtain wall above a revolving entrance door

Targeted Opening-Up and Controlled Water Testing

An investigation can progress from non-intrusive review to targeted opening-up or controlled water testing when the initial evidence does not define the route. Opening-up should be limited to agreed locations and planned around protection and reinstatement. A water test should use a defined area and sequence so observations can be linked to particular joints, glazing zones or interfaces instead of wetting a large elevation without diagnostic control.

Controlled façade or curtain wall water testing provides one source of evidence; it does not automatically reproduce every combination of wind, rainfall, pressure, temperature and building movement. Findings and limitations should be recorded before a remedial recommendation is prepared, with post-repair checking used where appropriate to the detail and agreed scope. Glass roof and atrium water ingress can be coordinated through commercial overhead glazing repairs, while access-led investigations can link to high-level glazing. No single test is presented as a guaranteed diagnosis or performance certification.

See the wider Surveys & Technical Reports service family.

FROM INSTRUCTION TO REPORT

How Our Technical Survey Process Works

01

Survey Instruction

We agree the scope of the survey with you — whether that is a full building envelope condition report, a targeted leak investigation or a remedial strategy to support capital planning. We confirm access requirements, key contacts and any specific output format (e.g. for insurers or warranty providers) so that the deliverable matches your needs.

Where you already have drawings, previous reports or test data, we incorporate these into our baseline so that our survey adds value rather than duplicating existing information.

02

Site Inspection & Analysis

Our surveyors attend site with the agreed scope, carrying out visual inspection, controlled testing where appropriate (e.g. water testing for leak investigation) and detailed record-taking. We document condition, defects and causes with photographs and location references so that the final report is unambiguous.

For complex or high-level areas we can coordinate with our high-level works & rope access capability so that every part of the envelope can be assessed safely.

03

Report & Remedial Strategy

We produce the report in the agreed format, setting out findings, priorities and, where requested, cost ranges or remedial options. The report is issued to you for review and can be shared with consultants, contractors or third parties as needed. Where the next step is remedial delivery, we can hand over to our façade remedial team or the Glazing Services team so that the same technical understanding flows through to delivery.

Leak Investigation FAQs

Common Questions