The jobs are yours can you travel to the NE or anyone else want them
But just before you say yes, looking at it quicky and very simply.
Two guys for a saturday morning would be £70+NI ect x2 ( as they rightly expect to get 50 for a saturday mornings work after tax, which I think is a more than fair price)
Then there's the running costs for van, chemicals and TM depending on milage ( plus the milage +time for the original quote) so say a round £60 for all costs to build in a cushion.
So we are up to £210 job is £300 so thats 255.31 + vat so theres is £45.31 potential profit in the job for me.
It might seam frivolous and condescending, but you can have the job for that I'd rather just do one extra job on a weekday and have saturday free with the family.
Simon's price of £450 sounds good, there's a possible £195.31 profit in that which is a fair return on invesment. I'd do it and could understand anyone else as well
Take out the other two guys and do it yourself and it's even more, better still get the two guys to do it without you at all and pay them a bit more. Then your free if another job come along,
Personally I'd quote that job at £900 +vat and be prepared to negotiate maybe miss out on that job, but i only need to get 1 in 12 and still make more profit in the long run without breaking my back. and spending 12 saturday mornings working.
Which as you will be doing 12 jobs more may mean I'm free when your not?
I learned this the hard way at 16 when I started out valeting cars for a garage, who the got there own guys in to do the work after watching me do it, so I went to the dealer who gave th garage most of the work and said "i'll do it for £5 less" which was wht I was getting anyway so what had i to lose.
I got the work for a week till steve the owner of the garage got all the cars the next week he was doing them for £10 less , this was on £25 valet you could only do 3 a day and be knackered, but hey I was 17 so go for it, I did the obvious thing when in for less again.
It took four weeks to run out of everything, polish, tyre dressing, dash sheen and I didn't have the money to buy stock, I was out of business, plus the dealer had gone back to the garage as they did the job right, as they hadn't run out of chemicals
It's called the busy fool, or better words are "turnovers is vanity, profits sanity"
Roger is right there nothing you can do to stop new people undercutting you, but plenty you can do to get the job.