Just got a quote for single storey extension thats 3.5m by 8.3 m, seems a bit outrageous at 36k would like people comments
Estimate Extension
To remove the decking 190
To remove the conservatory 590
To dig the foundation’s excavation -1m deep £2,590
To put the foundation concrete £890
To build the foundation wall £960
To put the DPC £190
To build the cavity walls £3,250
To install 2 lintels £190
Roof
To install metal beam £550
To install the roof joists £1,490
To put the celotex t insulation £430
To install 1 sky light window £360
To put the plywood £490
To put the roofing fibreglass mat £290
To apply the roof resin £450
To apply the resin top coat £280
Put the roof flashing £580
To install the fascia £310
Install the gutter £280
Floor
To remove the soil £550
To put base concrete floor £750
To put the Damp Proof Membrane £240
To put the Kingspan insulation £290
To put the top concrete floor £590
To install the external doors £190
To install 2 window £180
To install outside water tap £60
To put the ceiling plasterboards £340
To put the walls plasterboards £570
Ceilings plaster £590
Walls plaster £790
To install 2 doors £240
To paint 2 doors £200
To install 1 radiator £180
To paint the ceiling £260
To paint the walls £340
Laminate floor £390
ELECTRICS WORKS
Install 10 spotlights 300
To install 2 lights £120
3 switches £140
4 sockets £200
To install new outside lig £60
Total £21,930
Discount -£1,400
Total labour £20,530
Material and skip to supply
Material - about £12,000 - 14,000