<p>Further to your recent enquiry we have pleasure in offering our estimate for the work requested as follows:</p><p>Our price for the fabrication &amp; fixing of 4No walkways to the existing chiller unit framework on site.</p><p>All from 203x133x30Kgs beams 4No that will span across the width of the opening from the top of the coping stone level to the other side 150mm deep inside the other retaining wall as this is lower than the other side.</p><p>Coping stones covering to parapet wall to be removed to accommodate beams and made good using lead and adhesive flashing.</p><p>On the other side (plant room), to break out wall on both sides of chiller to accommodate an opening of 400x600mm where the beams will be laid on pre-cast pad stones. Wall to be made good upon completion.</p><p>The beams will be in 3No Sections &ndash; spliced and plated top and bottom and the webs to allow for them to be carried through the building.</p><p>Chequer plate will host 500mm wide landings and supported by 8No 80x80x6mm box section posts that will be plated each end for taking the load evenly across the existing roof area which has paving slabs all around. Posts to be laid in concrete</p><p>The connections will have M16 8.8 galvanised bolts to be joined together on site.</p><p>The chiller &ndash;unit is 2.800x1.800mm wide o/a. Which will have a new handrail all around the outer edges once the walkway has been constructed.</p><p>This will be from 42.4mm o/d galvanised tube with top rails, intermediate rails and standards at 1200mm centers. These will be bolted to the top of the new landing level with 1No swing gate for access to the platform for servicing the chiller units.</p><p>Material delivery to be arranged for a Saturday since access cannot be in office hours, given the size of the above specified</p><p>All material galvanised after completion &nbsp;</p><p>Delivery by agreement&nbsp;TBC</p><p>&nbsp;</p><p>Our total cost to carry out the above works in normal working hours shall be: &pound;24,428.00 + VAT</p><p>Please see cost breakdown below:</p><p>Metal fabricating works: &pound;20,068.00</p><p>Building works: &pound;4,360.00</p><p>Please note:</p><p>Client to arrange for the removal and re-instatement of the satellite dish and antenna.</p><p>Client to ensure all trailing cables for the above are contained for the duration of works.</p><p>Client to ensure on external wall of plant room to isolate and remove conduit and lamps.</p><p>Client to isolate and remove the isolator switches, conduit, trunking, fire alarm sounder, lamps and all other associated electrics on the internal partition of the plant room wall. This is to allow for breaking the wall to accommodate pad stones and beams.</p><p>During isolations client to arrange for temporary supplies.</p><p>No allowance is made to re-instate electrical elements.</p><p>No allowance is made in this quotation to verify the structural loading capacity of the existing structures.</p><p>We hope that you find our quotation competitive and look forward to receiving your advices</p><p>in due course.</p><p>&nbsp;</p><p>&nbsp;</p>