Propane Tank Recertification Most propane cylinders can be recertified while you wait as it usually only takes about 15 – 20 minutes. If your cylinder has propane in it we will have to burn it off before we can recertify it and this will take a little longer or if you wish you can pick up your cylinder another day.
How Much Does it Cost to fill a Propane Tank ... CODES (2 days ago) How much does it cost to fill a propane tank? On average, refilling a 10-pound tank is going to cost anywhere from $9 to $22 per tank. A 20-pound tank can cost upwards of $15 to $30 per tank to refill.