I have found in my flocks, that when I do something major to their coop(s) they take a while to get used to the change and adapt. It bothered me at first and I wondered as you what was up. But time has taught me to just wait it out, as long as they are getting enough to eat and calcium to make shells, eggs will follow. Chickens like change, about as much as my old worn bones do, the birds like routine and consistency in feeds, housing, and interaction from the care giver(s). Given these things, they should be little egg factories. Make sure all the basics are covered, a big enough roost, no drafts, no wet in the coop, enough ventilation and reasonable sanitation. I am assuming you are feeding a complete lay ration in quantities to meet their needs.
Best to you and your birds,
RJ
Edit: I just saw your post, are there a lot of feathers around? You could be in your first molt, which will put a damper on egg production.