Interior Painting serving Blackstone and Metro West MA.

The Census Bureau puts the median construction year of housing in this town at 1967, with a margin of about three years. That single number hides a wide spread. Roughly 22% of units date to 1939 or earlier, while the 1960s and the 1980s each account for about 17%. Only around 11% were built in 2000 or later. An interior repaint in one of those eras looks very different from a repaint in another, because the walls, the trim and the old coatings underneath are different.

Below: wall materials by era, the lead question, ceilings and trim, and buildings with two to four units.

Plaster, drywall and what each needs before paint

Houses from the mill era, including the clapboard worker housing the Blackstone Manufacturing Company put up near its 1809 cotton mill, were built long before drywall. A house of that age was built with plaster walls, which may since have been patched, skimmed or covered. Old plaster develops hairline cracks, loose keys behind the surface, and bulges where it has pulled away from the lath. Painting over a bulge only hides it for a while, so loose areas get reattached or cut out and patched before any primer goes on.

Homes from the 1960s and 1980s are more likely to be drywall. Common problems there are popped screws or nails, taped seams that show through the paint, and dents from decades of furniture. Those get reset, re-taped or filled and sanded smooth. Glossy older finishes, especially oil-based enamel in kitchens and baths, need a light sanding and a bonding primer so latex paint does not peel off them.

Lead paint and the 1978 line

About 62% of local housing units were built in 1979 or earlier. The Census groups years by decade, so that figure does not isolate homes built before the 1978 federal ban on lead in residential paint, but it does show that a large share of houses here are old enough that lead could be in some layer of paint on the walls, windows or trim.

Interior lead hazards come mostly from dust. Sanding, scraping or opening up old window sashes and door jambs can release it, and that dust settles on floors and sills where children pick it up. In a pre-1978 home, prep is done with containment, misting and HEPA cleanup rather than dry sanding. Our lead-safe painting page explains the federal RRP rule and what it means inside a home.

Ceilings, trim and doors

Water stains from an old leak bleed through latex paint unless they are sealed with a stain-blocking primer first. Textured ceilings from the 1960s through the 1980s need a different approach: they can soak up paint unevenly, and some older acoustic textures contained asbestos, so they are not scraped or sanded without testing.

Early homes can have wide, layered casings and baseboards that may carry many coats of paint, sometimes with oil under latex. Later houses usually have simpler profiles. Either way, trim and doors take a harder finish than walls, typically semi-gloss or satin, so they can be wiped clean. Our interior paint finish comparison covers how sheen choices differ by room.

Two-family and multi-unit buildings

Single-family detached houses are about 62% of the town's housing. Another 21% of units sit in buildings with two to four units, and roughly 27% of occupied homes are rented. In a two-family or small multi-unit building, a vacant unit can be painted on its own, and stairwells and shared hallways can be planned as a separate phase. When a rental building dates from before 1978, lead-safe prep belongs in the plan from the first walkthrough, not as an afterthought once sanding begins.