>Doubling the cost of materials seems cheap to me.
Like I said, it's a guess. When we do big jobs, our computer program assigns hours for each piece of material and industry standard labor rates. Well those rates are good on commercial jobs, where you have to hike in, carry your tools, lock your stuff up or carry it all out, etc. For smaller jobs, the labor is too high.
When we review bids, the first thing I do is total the materials (there are rarely costly errors in materials if you read the specs and prints correctly), add the markup, double that number (to account for labor) and that should be close. If we are more than about 10% off, then we need to dig a bit and see where we are off.
I like to quote by the drop, it is fast, can be conpetitive, and allows the customer an easy budget. I don't use the same number all the time. Simple new commercial construction where we already have a crew in doing the electrical I may quote $100 per dual Cat5e drop. Remodel where it will be in stages and working around existing stuff may be $180. Just depends on the particulars of the job, and how much business that customer does with me regularly. On larger accounts that only use us for their cabling work, I routinely cut them a pretty good deal and just make a little less profit per job, but then I'm there for every job.
It's an art, not a science.
Good Luck!
It is only my opinion, based on my experience and education...I am always willing to learn, educate me!
Daron J. Wilson, RCDD
daron.wilson@lhmorris.com