The most common cause of spoke breakage is uneven tension. You do NOT need new wheels. Why would you? Presumably the hubs and the rims are perfectly fine. Replace the broken spokes, or if it makes you feel better, all of the spokes and nipples. Make sure your wheelbuilder does a PROPER tensioning of the spokes. Make absolutely sure he's going to use a good tensiometer. A pro always will, but it's prudent to ask.