After you have done the multiplication, subtract about 40 sq feet per window, and about 60 sq feet per door. Divide by 400 (interior paint covers 400 sq feet per gallon). The number that remains, is how many gallons you will need. If doing multiple wall colors, then you should do this process for each room (or sets of rooms) with a particular color. 
Begin prepping your walls by removing any outlet covers or lighting fixtures (if possible). Next, inspect your walls for any defects. If you encounter cracks, dents, or holes in your walls, simply fill them in with caulk or spackling compound. There are also a number of DIY tips to fill nail holes. Once your repairs dry, smooth them down with sandpaper and wipe the walls down with a damp sponge.
The BEHR PREMIUM PLUS 2 gal. Flat Interior The BEHR PREMIUM PLUS 2 gal. Flat Interior Ceiling Paint is designed for use on textured popcorn and acoustic-style ceilings. This splatter-resistant paint offers great hiding performance for coverage of up to 800 sq. ft. Its mildew-resistant finish helps ensure that the matte sheen lasts over time.  More + Product Details Close
The BEHR PREMIUM PLUS 2 gal. Flat Interior The BEHR PREMIUM PLUS 2 gal. Flat Interior Ceiling Paint is designed for use on textured popcorn and acoustic-style ceilings. This splatter-resistant paint offers great hiding performance for coverage of up to 800 sq. ft. Its mildew-resistant finish helps ensure that the matte sheen lasts over time.  More + Product Details Close
Some paints are two-in-one paint and primer products, or so-called "self-priming paints." These paints are designed to seal and cover surfaces in one coat. But, here's the secret: though it's called a paint-and-primer-in-one product, there's actually no primer in the mix—what you're really working with is just a thicker paint that often doesn't perform as well as using separate primer and paint.
The following guidelines will set you up for success. First, start at the top and work down. Second, paint out of the sun’s glare, since the sun will cause the paint to dry too quickly and flake or blister. To avoid marks, try to brush from one wet surface onto another. If you do have to paint onto a dry surface, overlap the wet paint onto the dry surface by several inches.

If you are seeking a few gallons of interior house paint for your home, office, or apartment, read our helpful shopping guide. We have compared dozens of brands of interior house paints currently on the market and have compiled a short list of our favorites. Topping that list is Benjamin Moore Ultra Spec 500 Interior Paint, a low-odor, VOC-free formula from one of the most trusted brands in paint.


Some paints are two-in-one paint and primer products, or so-called "self-priming paints." These paints are designed to seal and cover surfaces in one coat. But, here's the secret: though it's called a paint-and-primer-in-one product, there's actually no primer in the mix—what you're really working with is just a thicker paint that often doesn't perform as well as using separate primer and paint.

While many professionals use paint sprayers, they can leave drips and uneven coatings in the hands of an inexperienced user. If you’re set on DIY house painting but don’t have much practice, you may want to stick to rollers and brushes. Brushes are great for edges and smaller areas, while rollers can be used to paint large and long surfaces like siding and trim.
House painting is no easy feat. While you may be tempted to purchase the cheapest kind of paint you can find, remember that you want the paint to look good and last a long time. If you haven’t chosen a color palette, there are a number of apartment design apps out there to spark inspiration. Once you’ve decided upon your color scheme, you’ll have to choose what kind of paint you want.
Similar to exterior mold, mold is more likely to emerge in warm and humid areas. That being said, rooms like bathrooms and basements are more prone to mold. To preemptively prevent mold, use paints that are mold resistant. Should you find mold on a wall in your home, you can clean it with a simple solution of one part bleach to four parts water. If the area is large, you may want to leave the cleaning to a professional.
My husband and I hired Rome and his crew to paint the exterior of our home and we couldn't be happier with the finished product! We purchased a Contemporary style home that was built in 1985 and what was once a gloomy, sad shade of a blue/grey, in desperate need of a facelift. Now, this house really feels like a "new" home (complete with an updated deck...read on for more)!
Some basic interior paints are sold in bulk, often in neutral colors such as white or beige. These can be very economical if the home’s color scheme is not a major consideration. However, many homeowners prefer to apply customized colors to match the furnishings or create a specific ambience for each room. Because of advancements in the industry, many manufacturers now offer a dizzying array of colors, from cool pastels to bold metallics.
The Coordinator. This person will care for the needs of the rest of the workforce, fetch drinks, make sandwiches, make runs to the store for last-minute needs, cook (or arrange) lunch and dinner, make phone calls, get directions, wash brushes, etc. Don't underestimate the need for this key person! When not gainfully employed, he or she can do some rolling.
Interview past clients. Talking to former customers is always a good idea. But, to ensure you're getting honest feedback — not just feedback from people who have been handpicked by the painter to sing their praises — ask to speak to the painter's three most recent clients. When you speak to them, ask about specifics. Find out whether the painters showed up on time, protected furniture from paint spills, kept the house clean, completed the project on schedule, and of course, what it cost to paint their house.
One of the first considerations when it comes to interior house paint is the base. There are two schools of thought, each with their pros and cons. Some brands commonly sold to contractors for commercial projects are oil-based, meaning the chosen pigment is mixed with an oil derivative called alkyd. Oil-based paint provides thorough coverage, and the finished coat resists moisture well. However, oil-based paint releases a high level of volatile organic compounds (VOCs) as it dries, and it can only be removed from floors, brushes, and clothing with strong chemical paint thinners. In fact, many states have actually banned the use of oil-based paints because of their VOC levels and hazardous ingredients.
Paint supplies cost anywhere from $10 to $100 or more depending on what you need. Painters will typically provide most of the supplies for a project, but sometimes they will allow you to pay for solely labor if you provide all the materials yourself. You might decide to do a DIY paint job down the road. In which case having these supplies on-hand will save you time and money.
Two aesthetic things to consider when selecting a finish are how shiny you'd like the surface to be and whether or not you want to hide any imperfections on the surface to be painted. Generally, higher-gloss paint finishes reflect light better than lower-gloss finishes, like eggshell and matte. That makes them shiny, and also causes them to highlight flaws in walls and ceilings.

Some basic interior paints are sold in bulk, often in neutral colors such as white or beige. These can be very economical if the home’s color scheme is not a major consideration. However, many homeowners prefer to apply customized colors to match the furnishings or create a specific ambience for each room. Because of advancements in the industry, many manufacturers now offer a dizzying array of colors, from cool pastels to bold metallics.
Summer is the busiest time of the year for painters, with some booked up to six months ahead of time, so book well in advance. Homebuyers getting VA loans have run into difficulties with this, so if you’re getting a VA renovation/rehabilitation loan, get all your painting and inspection estimates and work dates booked before you fill out any paperwork with a closing date, or the house will not be move-in ready in time.
Many new homeowners want to change the color scheme of their rooms, either as a way to personalize the space or match the walls with existing furnishings and artwork. Interior house paint is relatively inexpensive, and it doesn’t require complicated machinery or professional-level skills to apply. There are also thousands of customizable colors available, as well as a choice of finishes, such as matte, semigloss, or gloss.
Painting a brand new house with smooth surfaces dramatically reduces prep work. On the other hand, if you’re painting an old home with peeling walls or siding, it’s going to take a lot longer. When deciding whether to hire house painting professionals or do it yourself, take the current state of the paint into consideration. If you’re not up for the challenge of scraping and sanding for hours, you should hire help to get the best results.
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