Cost Calculations

sparky692 · Feb 8, 2015

Morning to all.
I have been offered by a very good client of mine the chance to price for a big job.Now the work i have to say which is the refurbishment of two sets of luxury wcs/showers etc and the adjoining corridoors. 220 metres in lenght. Needs new tray , landlords lighting . Tray emergency lighting etc, is of no problem at all. I have done smaller type jobs and ones a lot bigger but have never had to price the big ones myself.Prior to this i have sub contractred at thier price them from.
question is in this type of installation is there a pricing schedule list which has generic pricing for say installing tray etc cost per metre etc. twin and earth etc. and second fixing etc. I have some ideas but am asking for help as obviously i want the job and dont want to be over but also dont want to lose out. Its in london btw.
Thanks guys in anticipation

Jools

Leesparkykent · Feb 8, 2015

Why not just work out how many days it will take + materials and whack a bit on top like 20%.
pricing per meter on tray etc vill vary due to how it's being installed etc IMO.

Spon's Estimating Costs Guide to Electrical Works: Unit Rates and ...
www.amazon.co.uk › ... › Architecture › Reference
All the cost data you need to keep your estimating accurate, competitive and profitable. Do you work on jobs between £50 and £50,000? Then this book is for ...

You could have a look at this also, I've been told the prices are a bit heavy but as a rough guide could be helpful.

Andy78 · Feb 8, 2015

There are standard time norms you can use to price with. I have an old luckin's book somewhere with them all in. It can be a good accurate way to price up larger jobs but can be time consuming to put the quote together.
You use the reference guide for install times per metre for cable and tray, first and second fix of accessories etc.
It's worth giving it a go for sure, then cross referencing the quote with a standard time/materials quote to see how they stack up against each other. Then compare those to the time it actually takes you on the job.

Anthony S · Feb 8, 2015

sparky692 said:
Morning to all.
I have done smaller type jobs and ones a lot bigger but have never had to price the big ones myself.Prior to this i have sub contractred at thier price them from.
Jools

There's your starting point, the prices you worked for when subbing if labour only will be doubled what you got imo

In other words if the contractor paid you £1,000 for a job, bet he allowed £2,000 labour.

When I used to do price on commercial, this was normally how it was worked if I was working for the main Electrical contractor. Same for domestic as well as long as I was working for the main Electrical contractor.

sparky692 · Feb 8, 2015

.Thanks guys . I have heard that these spons and luckins are pretty good. Trouble is the fella gave me it on Thursday evening and he wants it Monday Evening . Pretty sure he aint getting it . think it may be a an investment in a guide as i may well be offered the chance to quote quite a bit of work . Not got any problem pricing Industrial and domestic. Didnt know if anyone had a old guide somewhere even if it was a few years old that i can start myself off with.Hey Ho . ill get myself one on monday ..
Have a nice day fellas and anyother info would be appreciated

Guest666 · Feb 8, 2015

You could always refer to the NSR (National Schedule of Rates) which details everything across all trades. We do a lot of work to a schedule of rates but I would not recommend to follow these on a one off job. SOR can be great on one job and not so great on another. The point being that over the course of a financial year it evens out. Also SOR tend to be used by companies that do not specialise in a particular field. So being a specialist contractor you should have the expertise to calculate daywork plus materials (+ 10% to be competitive, +20% if no one else is tendering) This should give you the edge.

If you do really want a guide for SOR then PM your meterage and I will do a rough estimate for you.

sparky692 · Feb 8, 2015

Thanks To everyone who has replied . Special Thanks to Shotgun Steve for his help . Mank thanks Fella , Been a Diamond and i appreciate it :smile5:

atm84 · Feb 8, 2015

Do not and i repeat do not price a job from the spons guides and expect to win it. Spon's are known for being over the top and many contractors will use it to price variations as it provides a nice profit. Client's QS's will use spons to get a guide for the cost of a project.

ipf · Feb 8, 2015

Write it all out in sections and weigh up how long it's going to take. If you get the job you get it...always there for future reference. Only you know your capabilities.