Commercial Leak Investigation, Repair & Reinstatement
Find the Cause. Fix the Defect. Restore the Damage.
Rather than appointing separate consultants, access contractors, repair specialists and decorators, Building Transformation can manage the complete process through one coordinated service.
Water ingress in commercial buildings is rarely as straightforward as it first appears. The point where water becomes visible internally can be some distance from the original defect, making repeated patch repairs costly and ineffective.
Building Transformation provides a complete solution for commercial leak investigation, building envelope repairs and internal reinstatement—helping property owners, facilities managers, property managers and building surveyors identify the true source of water ingress and resolve it properly.
Our guide explains how we combine specialist diagnostic techniques, building envelope expertise and practical repair capability to take a water ingress problem from commercial leak investigation through to permanent repair and final redecoration.
Complete the form to download your copy and discover a one-stop solution to finding the cause, fixing the defect and restoring the damage.
Stop Treating the Symptom. Find the Source.
Recurring leaks can quickly consume maintenance budgets when the underlying failure has not been correctly diagnosed.
Our approach starts by understanding why water is entering the building before recommending repairs. Investigations are tailored to the building construction and suspected failure mechanism, using both non-destructive and intrusive techniques where required.
This evidence-led approach helps you:
- Identify the true root cause of water ingress
- Reduce unnecessary or speculative repairs
- Target remedial works more accurately
- Minimise disruption to occupied buildings
- Reduce the risk of recurring failures
- Protect the long-term condition of the building envelope
Download the brochure to explore our complete approach to commercial leak investigation and remediation.
One Problem. Three Specialist Stages. One Contractor.
Rather than appointing separate consultants, access contractors, repair specialists and decorators, Building Transformation can manage the complete process through one coordinated service.
Stage 1: Test. Diagnose. Verify.
We investigate the source and pathway of water ingress using specialist building envelope diagnostic techniques.
Our capabilities include:
- Electronic Leak Detection (ELD)
- Moisture mapping
- Thermal imaging
- Flood and dye testing
- Core sampling
- Membrane integrity assessments
- CWCT spray bar testing
- Masonry water penetration testing
- Curtain wall diagnostics
- Sealant and gasket assessments
- Leak path tracing
- Rope access inspections
These methods allow us to investigate defects affecting commercial roofs, façades, glazing systems and curtain walling before remedial works begin.
Stage 2: Repair. Waterproof. Protect.
Once the defect has been confirmed, our teams deliver targeted permanent repairs based on the investigation findings rather than relying on temporary patching.
Repairs can include:
- Roof waterproofing and membrane repairs
- Flashing and penetration repairs
- Rooflight repairs
- Rainwater drainage repairs
- Structural sealant replacement
- Movement joint renewal
- Masonry and stone repairs
- Cladding remedial works
- Façade waterproofing
- Curtain wall repairs
- Gasket renewal
- Silicone resealing
- Glazing repairs and replacement
Repairs are undertaken using manufacturer-approved systems and recognised industry standards wherever applicable.
STAGE 3: Reinstate. Redecorate.
Specialist Investigation for Roof, Façade and Glazing Leaks
Water can enter a commercial building through numerous elements of the building envelope, and the visible symptoms do not always indicate the true source.
Our investigation and repair capability covers:
Commercial Roof Leaks
Investigation of flat roofs, membranes, rooflights, penetrations, flashings and drainage systems using techniques including ELD, moisture mapping, thermal imaging and intrusive investigation.
Façade Water Ingress
Testing and investigation of masonry, cladding, joints, sealants and façade interfaces to identify water pathways and defective components.
Curtain Walling & Glazing Leaks
Specialist investigation of glazing systems, gaskets, pressure plates, sealants and curtain wall interfaces using targeted testing and inspection techniques.
Difficult-to-Access Areas
Where defects occur at height or in complex locations, rope access, MEWPs and cradle systems allow our teams to inspect and repair areas that may otherwise require extensive scaffolding.
Why Choose Building Transformation?
Water ingress requires more than somebody who can repair a roof or reseal a façade.
It requires the ability to investigate the building envelope, understand the failure mechanism and then deliver the appropriate remedial work.
Building Transformation combines these capabilities within one specialist team.
One Contractor
Investigation, external repairs and internal reinstatement can be managed under one contract.
Building Envelope Specialists
Technical expertise across commercial roofs, façades, glazing, curtain walling and waterproofing systems.
Evidence-Led Diagnosis
Detailed investigation helps identify the root cause before repair work begins, reducing guesswork and unnecessary expenditure.
Specialist Access
Rope access, MEWPs and cradle systems allow difficult-to-reach areas to be investigated and repaired efficiently.
Detailed Technical Reporting
Clear photographic reporting provides evidence of findings alongside practical repair recommendations.
Permanent Solutions
Our objective is not simply to stop the visible leak temporarily, but to diagnose the cause, repair the defect and reinstate the affected area.
Dealing With a Persistent or Recurring Leak?
Repeated patch repairs can waste budget while the underlying defect continues to deteriorate.
If you are dealing with an active leak, recurring water ingress or an unresolved building envelope defect, our guide explains how an evidence-led investigation can help establish the cause and determine the appropriate permanent repair strategy.
Download the brochure to explore our complete leak investigation, repair and reinstatement service.
Frequently Asked Questions
What causes water ingress in commercial buildings?
Water ingress can originate from many areas of the building envelope, including roofing membranes, flashings, penetrations, façades, masonry, cladding joints, curtain walling, glazing seals, gaskets and drainage systems. The point where water appears internally may not be directly beneath or beside the original defect, which is why systematic investigation is often required.
How do you investigate a commercial roof leak?
The appropriate investigation depends on the roof construction and suspected defect. Techniques can include Electronic Leak Detection (ELD), moisture mapping, thermal imaging, flood testing, dye testing, core sampling, membrane integrity assessments and detailed inspection of rooflights and penetrations.
How do you find the source of façade water ingress?
Façade leak investigation can involve CWCT spray bar testing, masonry water penetration testing, curtain wall diagnostics, sealant and gasket assessments, pressure plate inspections and physical leak-path tracing. Rope access can also be used to closely inspect difficult-to-reach façade areas.
Can you investigate curtain wall and glazing leaks?
Yes. We investigate water ingress affecting curtain walling and glazing systems, including seals, gaskets, pressure plates, joints and interfaces. Where defects are identified, our teams can also undertake the associated remedial works.
Can you repair the leak after completing the investigation?
Yes. The service is designed to progress from diagnosis into permanent remedial works. Depending on the defect, this can include roofing, waterproofing, façade, masonry, sealant, glazing and curtain wall repairs.
Can you also repair internal water damage?
Yes. Once the external cause of water ingress has been permanently resolved, we can complete internal repairs including plastering, ceiling repairs, decoration, damp treatment and final making good.
Do you provide leak investigation using rope access?
Yes. Rope access can be used to inspect and test high-level façades, roofs, glazing and other difficult-to-access areas. Depending on the building and scope, we can also use MEWPs and cradle access.
Do you work on occupied commercial buildings?
Our specialist access and targeted investigation approach is designed to minimise disruption, particularly where buildings remain occupied or operational. Investigation methods and access arrangements are selected according to the building, defect and operational requirements.
Does Building Transformation provide commercial leak investigation across the UK?
Yes. Building Transformation provides leak investigation, building envelope repair and reinstatement services for commercial buildings nationwide.