One Other Consideration about Commercial Projects---Cash Flow
One Other Consideration about Commercial Projects---Cash Flow
After 30 years of contracting, I want to warn the OP about cash flow requirements for commercial projects. If you have been doing residential jobs for a while, it seems quite common to make a point to see the Owner every Friday and get a draw (on long lasting jobs), so you can "make payroll" etc. The first time you attempt that you will learn that it doesn't work that way outside of the resi world. If you work for a GC, you will add another layer of delay, because you are working for the GC, not the Customer. Often bank loans are involved, progress vouchers, etc. Remember that the longer the Bank/GC/Owner owes you money, the longer they get to use it, and you don't. Interest rates are very very low now, so it is mostly a question of how much working capital you have to carry the outstanding A/R billings, not so much how much interest it costs you (I started in 1981, when mortgage rates were in the high teens and prime rate was over 14%. I didn't use a bank loan/line of credit for the first 10 years).
Commerical/Industrial is a whole other world. If you work directly for corporate clients, you can state in your bid what you propose for a progress payment schedule, and you can expect to wait 30 days (minimum) for the payment for the progress billing. More typical is 45 days, or 60. That is after you get a couple of weeks into the job to make your first progress billing.
On special order, non-cancellable things, like switchgear, gensets, and maybe some lighting fixtures, you can propose to get a deposit when you sign the contract, to get the long lead tme items ordered--some customers will do it, others won't. And still expect 30-60 days to pass from the time you present the customer with the invoice for the deposit.
You can lose everything very quickly if you can't carry the A/R billings--your credit rep with the supply houses, the contract you are working on (if you can't perform due to lack of cash), and much much worse things (like delaying payment of W/H payroll taxes, etc. to hold on to cash).
I'd think long and hard about the BUSINESS END of this jump into commercial work. Then also consider that the blow and go TI work is full of resi guys right now, so they are working for peanuts, and the more complicated jobs (UPS's, Generators, Process Wiring, etc.) may be over your level of experience, which can result in total failure if you don't know what you are doing.
Good luck.