Yes, but Orchard is unable to unlock the phone for you. Only the carrier that the phone is locked to can unlock their phones.
Most carriers do charge a fee to unlock your phone, though it is often less than what a grey-market supplier will charge. They do stipulate that you must have a contract in good standing and have been using the phone on their network for at least 3 months.
You should also consider buying a phone that is legitimately unlocked. Orchard stocks a selection of affordable high-quality used factory unlocked phones, guaranteed to never become re-locked or cause you issues on activation. Shop our unlocked phones here.