Second coats on similar colors are almost never recogicnized as being needed until the coat is applied and has dried. ONLY THEN WILL YOU SEE WHETHER IT NEEDS A SECOND COAT or not. Yes, painters can use a cheaper paint then what you paid for. That is solved by getting your own which, I would charge extra for because I will always have to go get more, or add second coat because home owner tried to skimp on paint, or they got the wrong color etc...
If your home was built before 1978, there is a good chance that lead paint was used in its construction. Scraping, sanding, or removing old paint can release toxic lead dust which can cause serious illness in children and pregnant women. Special handling is required when working with lead-based paints. If lead paint is present in your home, you will need to hire a lead-certified painting contractor or lead abatement contractor. Before getting started with your exterior painting project, consult your local building authority or visit www.epa.gov for more information.
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.
If you have ornamental or colorful trees, shrubbery or floral selections around your home you should figure their colors into the color scheme selection that is made. These landscaping attributes will have an effect on how appealing the property is as a whole throughout the year. Homes that have a great deal of trees can make the property darker and cast shadows onto the home. Individuals will want to avoid darker colors for these situations.
Some proposals simply say to paint the walls and ceiling and never specify the number of coats to be applied. If the colors are similar enough, it's possible to get away with one coat of paint and not discount your pricing. No matter how hard you try, tiny, pin-sized air holes will pop exposing the original walls. This may not bother you if you can't notice it, but principally speaking you should have paid your painter less for the work.