<p>Tas?k 1 - To remove existing sump pump system and relocate for safe disposal.</p><p>Task 2 - To install a new 150mm x 1000mm x 1000mm x 800mm deep reinforced concrete sump.</p><p>Task 3 - To install a new V4 pre formed sump / pump chamber complete with high level alarm.</p><p>Task 4 - To backfill surround with concrete and once cured install new manhole cover.</p><p>Task 5 - To level existing hardcore and compress sufficiently to apply a 200mm slab.</p><p>Task 6 - To pour new reinforced concrete slab, bringing it flush with sump manhole cover and tied into existing walls / plinths.</p><p>Task 7 - To form 75mm deep &nbsp;x 100mm wide channels to the perimeter areas as indicated on attached drawing and install additional channels leading back to sump with protective grills installed. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br />Task 8 - To install water extraction pipework via underside of the slab to nearest suitable drainage (lightwell area) COL to confirm location of most suitable drainage available.</p><p>Task 9 - To supply and install 3 number non switched fused spurs suplied by separate circuits from nearest available distribution board. COL to confrim location of nearest distribution board and supply electrical isolations as required.</p><p>Task 10 - To feed cables from sump pump and alarm to spurs and terminate / test for conformity. &nbsp;Certification to be issued.</p><p>Task 11 - To commission newly installed system. Once commissioned witness testing can be undertaken by COL /Engie and sign off undertaken.</p><p>Note: A partial pavement closure will be required to situate the concrete pump within Finsbury square. Concrete pour will require a glazed unit to be removed within room 41 to allow access for hoses. glazing to be reinstated upon completion. &nbsp; &nbsp; &nbsp;We cannot be held responsible for any damage to the underside of the flooring caused by works previously carried out by Crossrail. &nbsp;under no circumstance must the new installation be removed or altered without prior agreement with GDC, failure to comply may negate the benefit of any issued guarantees. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;</p><p><strong>Breakdown</strong></p><p>Labour: &pound;6,630.53</p><p>Materials: &pound;30,801.71 &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p><p>Our total cost to carry out the above works in normal working hours shall be</p>