<p><strong>Scope of works option A</strong></p><p>A) Use a Cat and Genny to trace for live service in the proposed excavation, carry out an external hand excavation on the outside wall of the WC located at ground level, at the rear of the building, to locate the incoming water main and the possible bursts pipe in the area we believe that the leak is coming from after a site visual inspection only. Continue to use a Cat and Genny every 300 mm in depth while excavating.</p><p>If the leak is located whilst caring out the exploration dig then we may be able to clamp and freeze the burst pipe. After repairing the damaged pipe backfill the excavation using spoil from the excavation, compacting the spoil at 300 mm intervals using a hand tamper. Lay hazard tape and sharp sand above any service in the excavation while reinstating the spoil. ( Thames water will need to isolate the water supply and show us the isolation position)</p><p>Should no leak be found in the area of the first excavation, outside of the WC, then it may be wiser to lay a new water supply, depending on the location of the water supply entering the building and the actual property of National Grid. Before considering installing a new water main a survey will need to be carried out as below in option B Where a pressure test can be performed as long as thames water can isolate the supply.</p><p>Our total cost to carry out the above works in normal working hours shall be &pound;3,115.00+VAT</p><p>Breakdown Option A</p><p>Labour - &pound;2,240.00+VAT ( 2 NO. Operatives&nbsp;@ &pound;280.00 each per shift for 4 no. shifts in normal working hours)</p><p>Materials - &pound;350.00+VAT ( freeze kits and potential pipe replacements materials)</p><p>Plant and Machinery- &pound;475.00+VAT ( CAT&nbsp; and GENNY, Generator and minitaure breaker)</p><p>Waste - &pound;50.00+VAT ( faulty pipe works and left over spoil)</p><p><strong>Scope of works option B</strong></p><p>B)&nbsp; To Use a Cat 4 and Genny to trace the pipe back to its point of origin and to trace the water supply and all draw off points so they are identified, once identified a pressure test can be carried out to all sections of pipe work ( Thames&nbsp;water will need to isolate water supply) this will pin point the leg of pipe work with the leak. on completion of finding the leg a further quotation can be produced to replace the section of main.</p><p>Our total cost to carry out the above works in normal working hours shall be &pound;1,925.00+VAT</p><p>Breakdown Option B</p><p>Labour&nbsp;- &pound;1,680.00+VAT ( 2 NO. Operatives&nbsp;@ &pound;280.00 each per shift for 3&nbsp;no. shifts in normal working hours)</p><p>Plant and Machinery- &pound;95.00+VAT ( CAT&nbsp; and&nbsp;GENNY)</p><p>Report of findings - &pound;150.00+VAT</p>