The parts cost for a single ball joint replacement on your Accord is about $40. If you are taking it to a mechanic you can expect about $200 for Labor.
That really depends on what the shops in your area charge for labor as well as what must be replaced. Call around to get price quotes from various shops.
Ball join replacement cost comes around $500 -$1,100. This cost including the following categories such as replacement of upper and lower part of the wheel. This ball join replaced of both front and back wheel.