3c. LDC will use best endeavours to work around limited access. However, heavily cluttered areas, or refusal of necessary access, may result in our engineer being unable to conclude their work and our standard fees will be payable.
3d. If at any time LDC receives Customer refusal to our proposed testing methods, and we are unable to continue, then our standard fees will be payable.
4. Leak Detection
4a. It is not possible to predict how long it will take to find any leak(s).
4b. LDC will attempt to find all leaks within the Customer brief given to us, but no guarantee is possible as to how long this will take, and how many return visits are necessary.
4c. If undetected leaks cause any damage, then LDC accept no responsibility for such damage.
4d. Leak detection is carried out as per the Customer brief. If the brief is inaccurate and this impacts the leak detection in any way, we accept no liability and our standard fees will be payable. We are not responsible for leaks in areas and/or on systems not included in the Customer brief.
4e. Our testing is designed to find leaks in water supply pipes. Pressure and other testing will therefore be made up to the point at which any appliance is isolated, e.g. washing machine and dishwasher isolation valves, and shower thermostatic mixers. This is to avoid causing damage to appliances which are designed to work at standard water pressure. Whilst we will try and use common sense visual tests to the appliances for any water leak during use, this is not a guaranteed service. To be sure an appliance is not leaking during use, an appliance specialist would be required to attend and inspect, and it is the Customer’s responsibility to arrange this.
4f. Using a range of specialist equipment, we will try to locate a leak to a specific area. Although our non-invasive methods are more accurate and preferable to the traditional destructive approach, there are limitations to these methods. Certain floor constructions which may include ducting, sheathing, and/or plastic membranes, can reduce the accuracy of testing. In the case of non-solid floors, e.g. timber suspended and concrete block and beam floors, tracer gas can fill the void space, and/or be moved from the leak source by underfloor ventilation. Tracer gas can escape into an area or areas where the leak is not located.
4g. In certain circumstances limited invasive works are required, e.g. removing bath panels, removing boxing in, and removing light fittings for using endoscopic cameras. Invasive procedures of this nature will only be carried out if we are given clear instruction by Customer. If return visits are required to carry out further leak detection, because instruction was not given on the day, then this will be payable.
4h. Our equipment can ‘set’ liquid leak sealer which has been injected to a plumbing system before we attend. If leak sealer has previously been added to any system, it may make locating the leak more difficult or even impossible.
4i. Leaks can be intermittent and only leak under certain circumstance. For example, some heating leaks only occur when the system is hot and running. Leaks of this nature can be much harder to locate, and it may not be possible to locate a leak of this type using non-invasive methods. If a leak is not actively leaking during our time on site it is unlikely to be located successfully.
4j. Leak detection is considered successful even when we find no leak is present. This is especially true when a property is damp. If we confirm there is no plumbing leak, then this allows investigation by others to move onto other areas such as construction defects. This would also be true where no leak is found because there is a boiler fault.