My experience in residential house construction and renos, even indoor finishing work...only a handful of sub contractors in all my years have been women. And there mainly painters. Never roofers, hvac, framers, plumbers, masons, electricians, insulators, kitchen finishers, drywallers, etc. Semi often i encounter women on thr sales and rep side of firms but either in the store or office rarely even site inspection and quotes. Heck even the port-o-let guys are all men.