Ask the mover for references, and be sure to check those references. Get an estimate. Your mover must provide you with a written estimate. Some movers provide binding estimates, some do not. If you receive a binding estimate you cannot be required to pay more than the amount shown in that estimate.
Most movers however prefer nonbinding estimates.
While rates for in-state moves are set by the state, your mover is allowed to price his services as low as 35 percent below the state rate or 15 percent above. And remember, the estimate is not your final bill unless you negotiate a binding estimate. If you request the mover to provide more or different services than those included on the original estimate, the mover must supply you with a supplemental estimate. You can ensure your estimate is as accurate as possible by being realistic about what items, if any, you plan to pack yourself. Accurately describe any problems the mover may encounter at the pickup point, i.e. large pieces of furniture that need to be moved with a hoist or disassembled before moving.