About 27 percent of Portland homes date from 1939 or earlier and 63 percent from before 1980. Here is how to clean old fir floors, plaster, original tile and painted trim without wearing them down.
Portland's housing stock skews old. Census estimates put roughly 27 percent of homes in buildings from 1939 or earlier, and the median home dates from 1966. Houses of that era commonly have deep front porches, built-in buffets, single pane wood windows and bathrooms tiled long before modern sealers existed.
Those homes are a pleasure to live in and a little particular to clean. This guide covers the materials you are likely to find, the products and habits that protect them, the cautions that come with pre-1978 paint, and how a professional visit adjusts for an older house.
Beyond the 27 percent built in 1939 or earlier, about 63 percent of all Portland housing units predate 1980. Only about 13 percent were built in 2010 or later. Single family detached houses are about 52 percent of the total, so a large share of the city's older stock is freestanding houses with their own porches, basements and attics, each one a separate place for dust and damp to collect.
The suburbs are generally younger. Lake Oswego's median home was built in 1982, King City's in 1976, and Tualatin's in 1992. Sherwood is newer still overall, with a median of 1997, though its Old Town holds commercial buildings from the early 1890s, and the city's early brickyard supplied building bricks for much of Portland's growth.
Original floors in older homes are often decades past their last refinish, with thin finish worn down in walking paths. Water is their enemy. Damp mop rather than wet mop, using a well wrung microfiber pad and a pH-neutral wood cleaner, and never let water stand in the seams between boards.
Grit is the second enemy, and Portland's wet season brings plenty of it. With rain on about 157 days a year, sand and fine gravel ride in on shoes and act like sandpaper on soft finish. Mats at every door, felt pads under furniture and frequent vacuuming with the beater bar turned off do more for an old floor than any polish.
Plaster walls clean well with a barely damp cloth and a drop of mild soap. Avoid magic erasers on painted plaster; they are a fine abrasive and can leave dull patches. Picture rails, plate rails and the tops of tall door casings hold years of dust and should be wiped by hand.
In homes built before 1978, assume painted surfaces may contain lead somewhere under the top coat. Cleaning is safe when it stays gentle: damp wiping, no sanding, no scraping, no dry dusting of chipped areas. If you see chipping or peeling paint, especially on window sills and sashes where friction wears it down, leave it for a qualified painter or lead professional rather than scrubbing it.
Prewar bathrooms often have small hex or square tile with wide cement grout, cast iron tubs and nickel or chrome fixtures that have been polished thin. Skip acid cleaners and bleach on old grout and marble, which can etch it. A neutral cleaner, a soft brush and a thorough rinse are enough most of the time.
Portland's soft water helps here. Bull Run water carries only about 7 to 11 parts per million of hardness, so old fixtures rarely build the mineral crust that tempts people to reach for harsh descalers. What builds up is soap film, which lifts with gentle products.
Single pane and early double pane windows get cold in the wettest months, and condensation runs down onto sills. November through January average five inches or more of rain each at the airport, so wipe sills and the bottoms of sashes often in that stretch, and keep the tracks clear so water can drain. Persistent dark spots on a sill or in a corner are a sign of a moisture problem worth having looked at; cleaning can remove surface grime but does not fix the cause.
When TotalCare Cleaning comes to Portland, a One-Time Deep Clean will suit older homes well as a first visit: baseboards washed by hand, window tracks cleared, light fixtures and vents wiped in place, cabinet fronts degreased, all with products suited to old finishes. The deep cleaning guide has the full list.
The questions Portland homeowners ask most often about this topic, answered plainly.
TotalCare Cleaning will service Portland and surrounding areas with background-checked cleaners and is insured up to $1 million. Re-clean guarantee: if we missed something, tell us by the end of the next day and we come back to fix it. Beyond Clean. TotalCare.
