My female lovebird age 3, lays new eggs almost every month. She sits on them for a while and then abandons them just to lay eggs again a week after. Is this normal? This happened with our previous lovebird female aswell which has sadly passed. Might the male be the cause of this?

We got a notice that our apartment hardwood floors are to be varnished/ refinished on October 22. How long do birds have to be away from the apartment post work done ? This is stressing me out and lot as I just took a 2 week vacation end of September into October during which I boarded my birds $ as the tub was going to be reglazed and bathroom painted which was done the next day we left so there was plenty of time for the apartment to air out( I had my friend go and make sure windows were open for cross ventilation and fans on) . It is a busy season for me at work now to do the whole boarding prep thing with transfer of cage and supplies and drive to and back the sitters. I am not sure what to do , thinking should I refuse the work ( floors are in bad shape though) .

Anyone know the time frame to keep them away and any other advice ?