According to the EPA, professional painters must check for lead -- especially if a home was built before 1978. Many DIY painters forget to test for lead paint. Testing kits are available in home improvement stores for less than $40. You can also hire a lead testing and removal professional to do this work quickly and efficiently on your behalf. Lead paint can be dangerous; it's far better to find it before you put time and effort into painting your home than after the fact.
The best time of the year to paint your home is typically in late spring and early summer when it’s warm outside and moisture is low. This can change based on your geographic location. For example, fall can be a good time to paint in California when the difference between high and low temperatures is low. Your painter will select the optimal time to start your exterior painting project.