benchmarking

I'm about to set out on this little, task for a number of services.

Some i'm looking at, I'll try to bundle together, like cctv, fire alarm (red care), intruder alarm and access control system.
L8 is pretty much self explanatory,  as is anything to do with plumbing and electrical.

if my bench marking is all about getting best price, then that's all i'm looking at in my benchmarking process along with the way the quote is presented and reputation.