average cost per gallon for painting
1 The average cost of paint will range anywhere from $20 to as much as $100 per gallon. 2  According to Home Depot, paint designed for concrete, basements and the garage floor are going to vary from $30 to $300. 3  For example, Sure Step 1 Gallon Clear Acrylic runs around $30 per gallon. A gallon of Insl-X Black paint is $40 a gallon. 2  Waterproofing paint is usually a little higher compared to most other paints. 3  This paint ranges from $20 to $115. 4  Thompsonâs WaterSeal paint is $60 a gallon.
Interior House Painting Cost Factors. Generally, it will take a minimum of two gallons of paint to cover a room. At the highest end, paint will cost anywhere between $30 and $60 per gallon and come in three different finishes: flat, semi-gloss or high-gloss.Flat finishes are the least shiny and are best suited for areas requiring frequent cleaning.ind out how much your project will cost. Provide a few details about your project and receive competitive quotes from local pros. The average national cost to paint a home interior is $1,671, with most homeowners spending between $966 and $2,426.