Interior Painting throughout Norton, MA.

Census figures split the town's 6,791 housing units into very different interior jobs. About 11% were built in 1939 or earlier, about 35% went up between 1980 and 1999, and about 19% date from 2000 on. The walls, trim and ceilings in each group fail in their own ways, so a fair estimate starts with what the rooms are made of and how many coats of paint they already carry.

Plaster and old trim in pre-1940 houses

A house from before 1940 may still have plaster on wood lath. Plaster is durable, but over decades it develops hairline cracks, bulges where the keys behind it have let go, and patches from past repairs that read differently under a fresh coat. Loose sections need to be reattached or cut out and filled before paint goes on, or the new finish will crack along the same lines.

Trim in those houses may have many layers of oil-based enamel. Latex will not bond to glossy oil without cleaning, deglossing and a bonding primer, which is why a quick latex coat on old window casings sometimes peels off in sheets a year later.

Lead dust indoors

Lead was banned from residential paint in 1978, and about 46% of the town's homes were built before 1980. Inside, the risk comes from friction and prep: windows rubbing in their jambs, doors scraping their stops, and sanding of old trim. Fine dust settles on floors and sills where children play.

For rooms with paint from before 1978, prep should follow lead-safe practices: plastic sheeting sealed to the floor, misting before scraping, HEPA vacuums and wet cleaning. Our lead-safe painting page explains what that involves.

1980s and 1990s drywall

The 1980s is the town's largest single building decade in the Census count. Drywall of that age can show nail pops along studs, cracked tape at ceiling corners, dents along stair walls, and flat builder-grade paint that marks when you wipe it.

If the house has an open stairwell or a two-story foyer, ceiling height and staging belong in the walk-through. Setting screws next to popped nails, re-taping failed seams and spot-priming patches keeps the repairs from flashing through the topcoat, and moving up to an eggshell or satin finish in hallways and kids' rooms makes walls washable.

Attached units, rentals and occupied rooms

About 12% of local housing units are single-family attached and another 12% sit in buildings of five or more units. In those homes, interior painting can mean working around neighbors, shared hallways and building rules about noise hours and parking. Renters occupy about 16% of occupied units, and a rental may need its walls done in the short gap between one tenant and the next.

In any occupied house, sequencing matters: one or two rooms at a time, furniture moved and covered, and low-odor paint where people sleep. See our tips on preparing your home for an interior paint job.