Andover's 1970s homes, remodeled with a plan

What a 1972 median house usually needs

Census figures put the median year built in Andover at about 1972, across roughly 13,900 homes. A house from that era is old enough that its original kitchen and baths have been replaced once already or are overdue, and young enough that the framing is dimensional lumber, the walls are drywall and the wiring runs to a breaker panel. That tends to make for a predictable demo. When we open a wall in a house like this, the surprise is more often an undersized panel, a bath fan dumping into the attic or a past owner's shortcut than anything structural.

Opening a kitchen to a family room is one of the most frequent asks in houses of this age, and it almost always involves a wall that carries something. We find out what it carries before anyone swings a hammer, and the written scope says how the load gets picked up: the beam, the posts, and the footing under them if one is needed.

About 15 percent of the homes are newer, built since 2000. Those owners tend to call about a basement that was never finished or a builder-grade kitchen, rather than decades of patches.

You deal with one person, and you hear about a change before it happens.

The older fifth of the housing stock

Roughly 22 percent of Andover's homes went up before 1940, and those are a different job. Plaster on wood lath, balloon framing that lets air travel from the basement to the attic, and wiring that may include knob and tube are things we plan for in a house that age rather than discover halfway through. Anything built before 1978 is also treated as possible lead paint, so the work follows lead-safe practices: containment, plastic on floors and doorways, HEPA cleanup, and a site you can walk through at the end of the day.

In an older colonial or farmhouse, matching what is already there matters as much as the new work. Trim profiles, casings and floorboards often get reproduced or salvaged so a new kitchen does not look like it came from a different house. Where a wall comes out, the plaster edges are cut back to sound material and patched so the line does not show through the paint a year later.

Older houses here have often been added onto, too. A 1930s core with a later family room and a newer kitchen bump-out is a common New England pattern, and each piece was built to the rules of its own day. Where those pieces meet, we check the framing, the roof tie-in and the floor heights before designing anything new across them.

Owners who stay, and plan accordingly

About 81 percent of Andover homes are owner-occupied and close to 70 percent are single-family detached. That is a town of people remodeling for themselves, and it changes the conversation. The questions are about how the kitchen will work in ten years, whether a first-floor bath makes sense for a parent moving in, and whether an addition is worth it compared with finishing space the house already has.

An addition starts below ground, with a footing that in Massachusetts goes below frost depth, commonly about four feet, and with a permit through the town building department under 780 CMR. Inspections follow the work: rough framing, the licensed electrician's and plumber's rough-ins, insulation, and a final. If the house is on septic and the plan adds a bedroom, the Title 5 design-flow review comes first, so we raise it at the first walkthrough.

Andover is about 50 miles north of our Raynham shop, and a job there is scheduled with that drive in mind. You deal with one person, and you hear about a change before it happens. That is the reason Steve started the company.