Apologies if I’ve swept over things here but estimation can be a mine-field and can result in either good profits or a path to insolvency if undertaken without full consideration of the components involved.
It is doubtful if a QS could complete the pricing of a £14m school building in two weeks (and get the correct price). Under pricing is a big problem because you then have to fight for every penny as they try to recover their costs, they go bust then you have to re-let the contract, or with smaller contractors they just stop turning up. Over pricing is also a problem as the client will not get the best price; If you only have two weeks do you add 10% to everything in case you miss something.A QS involved in a £14m build I was involved with at a school a few years back took less than two weeks to come back with the entire preparation, quantities, costs, etc.
Probably helps if the QS and the construction company are basically rolling out similar buildings across a sector... but a) doable and b) came in under the budget.... A chippy would be in the same place of knowing their sector and knowing basic outline prices alreadyIt is doubtful if a QS could complete the pricing of a £14m school building in two weeks (and get the correct price). Under pricing is a big problem because you then have to fight for every penny as they try to recover their costs, they go bust then you have to re-let the contract, or with smaller contractors they just stop turning up. Over pricing is also a problem as the client will not get the best price; If you only have two weeks do you add 10% to everything in case you miss something.
£14m of works in a school will involve many different trades and suppliers. If the QS works 12 hours a day for two weeks as you suggest that is only 120 hours work.
You have to look at the drawings and specification and figure out the scope of the works. Will you need specialist contractors for piling or suppliers for the nice glulam beams over the hall.
You will have to contact all the trade contractors, suppliers and specialists and ask them if they are interested in the job.
Copy the relevant drawings and of the other docs and get them to all the different subsidies and suppliers so that they can price their part.
It is a good idea to phone up all the people to see if they got the works package and that they are going to price it. Many times they decide they do not want it once they have looked at the drawings so you may have to find more people to price that part.
You will know that some of the bricklayers will just lay bricks and will require the main contractor to supply forklifts, etc. The QS has to price all these things for all the subcontractor. The QS will have to plan the time each element of the works so that they know how many weeks they will need the fork lift for so they can get a price for it. Also things like offices, toilets, cleaning the road outside and staff etc.
Then you get all, hopefully, packages back from the subcontractors and have to see what they have priced. The carpentry contractor has not allowed for cranage, Better get some prices for cranes of the correct size. Then you have to compare the prices which cover different things to see who you will go with.
A lot of work for a QS to do in 120 hours.
A rough estimate of materials costs plus a percentage mark up, e.g., material costs + 500%?There is a simple formula for pricing such a job, anyone want to have a guess at it?
There has to be a modicum of profit to be made from a job, otherwise as I have said you are just 'treading water'. Just adding a percentage for wear and tear, is not enough. you have to invest in new kit to keep profitable. Otherwise, where does the money for this investment come from? Your wages? Keeping things exactly as they are isn't a realistic option. Things do have to evolve.@niall Y - sure, if you are looking to grow a business (e.g. Pimlico Plumbers) then adding a profit margin above the wage makes sense - and companies such as Pimlico Plumbers demonstrate that there are people who will pay way over the norm. to have good and reliable service... but my point remains, it is about knowing your market - the vast majority of tradesmen are not setting out to build a bigger company, they are aiming to make a living - and while I thoroughly support making as much money as you can, it is also concerning if people price themselves out of a market and go bust, or build so much expense into their overheads that they are no longer competitive (do they really need the latest VW transporter kitted out with Festool? The chippy who turns up in the brand new leased VW transporter - lowered, larger wheels, etc. and kitted out in Festool, is not making themselves any more money, nor offering the customer better value - they are simply supporting VW and Festool
For example - Lard mentions working out costs including labour - then overheads, then adding profit margin - however, for most small traders their labour charge is their wage - there is no additional profit on top - if they have factored in the overhead costs of providing workshop / kit / etc. then their labour cost pays their living - they are not a national company with shareholders to whom they have to distribute profit margins - and yes, it is lovely to add profit on top, but that changes then the client base / market into which you can sell...
I would often use this for sitework, where you don't always know what you might uncover & have to deal with, including on jobs that might even take several months - and in the workshop for certain repairs for similar reasons. It needs a certain amount of trust from the client but if you explain your reasoning and what your hourly rate is, they tend to take that on board.The first is a fixed hourly rate where the customer agrees to an open price
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