Having your home painted by professionals is often a great choice. It's nice to have someone else do the work, and the results you get from professional painters tend to be better than those you'd get with a DIY approach. The process of hiring painters is usually pretty simple. However, since every painter tends to have a somewhat different approach, there are a few things you'll want to confirm before your professional painters arrive.
Do they expect you to clear the room?
Some painters will move items away from the walls themselves. Others will want the rooms to be prepared when they arrive. If your painters did not give you specific prep instructions, contact them and ask what they prefer. If they want you to move the furniture, find a few friends to help you. Keep in mind that you do not usually need to move it out of the room to be painted. You can gather it all in the center of the room as long as you leave enough room for the painters to work against the walls.
Will they patch the drywall?
If there are nail holes, dents, or other imperfections in your walls, then you will want those to be filled before the room is painted. Some painters do this sort of work, too, but they need to do it a day or two before they start painting—which means they need to plan for it. Make sure your painters plan on patching the walls before painting. If they do not, you will either need to do this yourself or hire someone to do it before the painters arrive.
Will they apply primer to the walls?
You do not technically need to prime walls that are already painted unless you're applying a light color over a dark color. However, some painters will still prime the walls to get a better finish. This is more work, so they will charge you more if they have to prime your walls. Have a conversation with your roofer about the pros and cons of priming your walls. The painter can help you decide whether or not this step is worth the extra cost in your case.
Make sure you talk about these topics with your painter so you have a good idea of what to expect from them. If you have any additional questions, do not be afraid to ask. Contact a local painter to learn more.