What one job saves
- One walkthrough and one written quote, instead of two of each a year apart.
- One setup: ladders, drop cloths and staging come once.
- Rain days spent inside instead of lost. In a Wisconsin summer that alone can save most of a week.
- Colors chosen together, so the trim outside and the rooms inside belong to the same house.
When it does not make sense
If the outside is sound and has years left in it, do not paint it just to do both at once. A coat that is chalking but still holding is a repaint conversation, not an emergency, and the same is true of a room you are happy with. Doing two jobs at once makes sense when both need doing; it is never a reason to paint something that does not.
The same goes for budget. If the money covers one side done properly or two sides done cheaply, do one side properly. Prep is the paint job, and it is the first thing a stretched budget cuts.
Which side goes first
In Wisconsin the outside sets the schedule, because it only has about 20 weeks a year. The rooms fit anywhere: on rainy days during the exterior, or in winter when the crew is indoors anyway. So the usual order is the outside in late spring or September and the inside before or after it, all on one quote.