Surveyroof specialises in third party electronic leak detection and integrity testing for new and existing flat roofs and structural waterproofing membranes in London.

We are an independent and fully accredited UK flat roof electronic leak detection tester and provide non-destructive and cost-effective flat roof conditioning tests that are completely unbiased in London.

At Surveyroof, we ensure that we use the latest flat roof electronic leak detection methods and thermal imaging surveys which quickly find the point of entry and accurately locate the source of the leak for commercial properties in London.

Holiday Detector Test Roof Survey - HDT

Holiday Detector Test

Often referred to as the “dry test”. This method of flat roof electronic leak detection is ideal for use on any flat or low pitched roof to identify breaches in exposed membrane systems allowing for a quicker testing schedule identifying imperfections such as pinholes and punctures. This test can only be performed in dry conditions.


The detector delivers, via a phosphor-bronze brush, a stabilised D.C. output voltage across the non conductive waterproofing membrane under test. Detection of breaches is by an audible tone and a visual spark from the search electrode (brush).

Do you need an independent and accredited dry electronic leak detection test for your roof in London? Talk to one of our dedicated flat roof advisors for a complimentary consultation and quote.

Roof Survey Holiday Detector Test

Earth Leakage Leak Detection Roof Survey

Earth Leakage Leak Detection

Often referred to as the “wet test”. This method of flat roof electronic leak detection is ideal for use on any flat or low-pitched roof to identify imperfections in exposed membrane or ballasted systems. This test is performed in wet conditions (rainfall) or with a hosed down wetted test area. METHOD A pulse generator emits pulses with a voltage of 40V which are conducted onto the roof structure via a wire ring circuit. Since all roof membranes are more or less non-conducting, the electrical pulse chooses a path across the moisture to where the leak is located and then flows over the damp roof in all directions to reach the ring circuit. We can now determine the currents direction of flow and trace it back to its source. This source is exactly the spot where moisture is penetrating the roof membrane. Want to find out more about the flat roof electronic leak detection services we offer? Contact us to talk to our independent and accredited expert roof surveyors based in London.

Do you have a building in London with leaking flat roof areas?

We pride ourselves on our unrivalled customer service. We believe our relationship with you is just as crucial as the quality roof survey solutions that we deliver.

We Will Find The Leak

Our highly trained roof technicians will find the point of entry quickly and accurately using our non-evasive and non-destructive electronic leak detection methods.

All Weather Detection

Leak detection tests and surveys can be carried out in all weather conditions. Every test and roof survey is conducted by a fully qualified and highly skilled technician, safely, securely and comply with on-site health and safety regulations. Every roof survey we undertake undergoes a specific risk assessment and method statement for your peace of mind.

Independent Survey and Advice

Surveyroof are fully independent, providing you with honest, accurate details and ways of maintaining your and repairing your roof. Putting you in control of your budgets!

Flat Roof Electronic Leak Detection Manchester

Surveyroof can find the point of entry quickly and accurately. We care about independent and accurate roof conditioning surveys, operating Nationwide and throughout London.

Membrane Condition Surveys

Electronic leak detection and integrity testing on flat roof and waterproofing membranes for Industrial buildings.

Industrial Roof Surveys

We will identify the condition of your metal roof or pitched tiled roof areas using our Visual inspection methods.

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