I think it is, was the quote arranged through managing agent? I now tend to find I get much better quotes by ringing around myself.
Have a basic idea of what materials are needed and cost, just ask basic questions, " roughly how long do you think it I'll take?" "what's your hourly rate, call out fee etc".
Recently my agent was quoted $700 to repair a panel and post of color bond fence, remove another panel and concrete edging to widen the drive way, plus remove some other bits and pieces. I rang and spoke with another handy man and got it all done for $260 including materials.
Cheers,
Ben