The color is the decision people agonize over, and it is the easiest one to change later. The three decisions made quickly at the counter, which sheen, whether to prime and how many coats, are the ones that decide whether a painted room looks sharp for years or starts showing every scuff, patch and roller mark within months.
None of them are complicated. Here is how each one works and how we decide them room by room.
Sheen: what it actually changes
Sheen is how much light the dried paint reflects. The usual names, from least reflective to most, are flat or matte, eggshell, satin, semi-gloss and gloss.
Two things change together as sheen goes up, and they pull in opposite directions. Higher sheen is harder and more washable, so marks wipe off without leaving a shiny patch. Higher sheen also shows everything underneath it, because a reflective surface makes every dent, patch and ridge visible when light rakes across the wall.
That trade-off is the whole decision. Low sheen hides the wall and marks more easily. High sheen cleans easily and shows the wall.
One caution: sheen names are not standardized between manufacturers, and one brand’s eggshell can be close to another’s satin. Choose from a sample of the actual product, not from the word on the can.
Which sheen in which room
- Ceilings: flat. A ceiling is seen at a low angle against the light, which is exactly the view that shows every flaw, and nobody washes a ceiling.
- Living rooms, dining rooms and bedrooms: matte or eggshell. Enough washability for normal life, and low enough reflection to keep the walls looking smooth.
- Kitchens, bathrooms, hallways, mudrooms and children’s rooms: satin. These walls get touched, splashed and scrubbed, and a higher sheen survives the cleaning.
- Trim, doors and window casings: semi-gloss. Hands, feet, vacuums and dogs hit trim constantly, and semi-gloss wipes clean and gives a crisp line against the wall.
The exception is an older house with walls that are not smooth. Plaster patched over a century, or drywall with visible seams, may look better one step lower than the room would normally get, accepting that it will need touching up more often.
Touching up is the other thing sheen affects. On flat and matte finishes a touch-up usually disappears. On satin and above, a spot of fresh paint often shows as a patch of different shine, called flashing, even in exactly the right color. On a higher-sheen wall the cleaner fix for a mark is often to repaint the wall corner to corner.
Primer: when it is needed and when it is not
Primer has two jobs. It seals a surface so the paint over it dries evenly, and it gives paint something to grip that it would not grip on its own. When a surface needs neither, primer is an unnecessary coat. When it needs either, skipping it is where paint jobs fail.
Primer genuinely earns its place on:
- New drywall and fresh patches. Bare joint compound absorbs paint differently from the painted wall around it, and without primer the patch shows through as a dull spot.
- Water, smoke and marker stains. These bleed through ordinary paint, sometimes after several coats, and need a stain-blocking primer. A water stain also needs the leak that caused it fixed first.
- Glossy existing finishes. Paint does not bond well to a hard, glossy surface, so it is scuff-sanded and primed with a bonding primer.
- Oil-based paint under latex. Many older homes have oil-based paint on the trim, and latex painted straight over it can peel off in sheets. A quick test is to rub the trim with a rag dampened with rubbing alcohol: latex paint softens and comes off on the rag, oil-based paint does not.
- Big color changes. Covering a deep red or navy, or going from dark to light, is faster and more even with a primer tinted toward the new color.
Primer is usually not needed on a sound, clean, previously painted wall in a similar color. Paint-and-primer-in-one products are thicker paints that hide well. They are useful, but they are not a stain-blocking primer or a bonding primer, and they do not replace either in the situations above.
How many coats
The number of coats is set by the color change and the surface, not by preference.
- Same or similar color over a sound wall: often one coat over any spot-primed patches.
- A real change of color: two coats. The first coat covers and the second makes the color and sheen even. One coat of a new color usually looks fine wet and patchy dry.
- Deep, saturated colors, some reds and yellows especially: a tinted primer and two coats, sometimes three, because these pigments hide poorly.
- Bare drywall: primer plus two coats.
A quote that prices a strong color change as one coat is either relying on a primer to do the hiding or is going to look uneven in the right light. It is worth asking which.
Preparation is most of the job
The paint itself is a small part of the cost of painting a room. The time goes into filling nail pops and dents, sanding patches flush, replacing cracked caulk at trim joints, dulling glossy surfaces, masking, and protecting the floor and furniture. None of it is visible in the finished room, which is exactly why it is the first thing cut from a low quote, and why two painters using the same paint on the same wall can produce visibly different results.
We write that preparation into the scope on our interior painting work, so you can see what is included rather than finding out afterwards what was not.
Dry is not cured
Paint is dry to the touch within hours. It is not fully hard for considerably longer, and the cure time the manufacturer states on the can runs to weeks rather than days.
That has two consequences. Walls should not be scrubbed until the paint has cured, because a wall washed too early burnishes and loses its even finish. And painted trim, doors and shelves stay slightly soft for a while, so a door closed tight against a freshly painted stop, or books pushed back onto a new shelf, can stick and pull the paint off. Leave a little space for the first few weeks.
It is the same distinction that catches people with a refinished wood floor, which we cover in refinishing your floors while you live there.
Painting through a Wisconsin winter and summer
Interior painting is a year-round job here, and the seasons change it in small ways.
In winter the house is closed up, so ventilation is harder and a low-odor, low-VOC paint makes the room far more comfortable to be in. Resist opening windows wide in January to clear the smell. Paint has a minimum application and drying temperature printed on the can, and an exterior wall next to an open window can drop below it.
In a humid August, latex paint dries more slowly and recoat times stretch. Running the air conditioning helps more than a fan pushing humid air across the wall.
Older homes and lead paint
Houses built before 1978 may have lead-based paint somewhere under the current layers, and a lot of the housing in La Crosse, Winona, Sparta and the older village cores around them predates that by decades. Intact lead paint that has been painted over is not the hazard. Sanding, scraping or cutting through it is, because that creates fine lead dust.
So in an older house, surfaces that will be sanded get tested first, and if lead is present the work has to follow lead-safe practices. Full lead abatement is a certified specialist’s job rather than ours, and we will tell you if a project needs one.
Keep the leftover paint
Label the leftover can with the room, the color and the sheen, and store it indoors where it will not freeze. Color mixed at different times can drift slightly between batches, and a touch-up from the original can is far more likely to disappear than one from a new can mixed to the same formula.
Painting with the rest of the room
If a new floor is part of the project, the order matters as much as the sheen: ceilings and walls before the floor, trim after. Paint before or after new floors sets out that sequence, and what happens to the baseboards explains why trim nearly always needs paint at the end. When one crew is doing the floor, the trim and the paint, the whole thing is scheduled once. Book a free in-home estimate, and color guidance comes as part of it.