Chimney Sweeping & Repair in Portland, OR

The Portland Intl Ap station averages 32 nights a year at or below 32°F - a short freeze season.^1,2 Water that enters a crown or a mortar joint expands on freezing nights, so a Level 1 inspection looks hard at the crown, cap and flashing. The median home in the city of Portland was built in 1966, older than the U.S. median of 1980 and older than the Oregon median of 1981.³ Older masonry chimneys may be unlined or have cracked clay tile liners; a Level 2 camera inspection is the standard way to confirm the liner before the first fire of the season.

Somewhat more of Portland's housing predates 1980 than the national share: 63% against 50%, with 13% built since 2010.³ Pre-1940 chimneys were often built without a liner at all; relining with stainless is the usual remedy when the scan shows bare brick. Annual precipitation is about 37 inches, with 4 days a year bringing an inch or more.^1,2 Snowfall averages about 4 inches a year.^1,2

Heating dominates the year: about 4,104 heating degree days against 508 cooling degree days (base 65°F).^1,2 In a heating-led climate, insulation and air sealing carry most of the energy-code weight for any work that opens the envelope. Building permits in Portland are normally issued by the city building department.^4,5 Where a liner or rebuild needs a permit, the contractor files it with the city before work starts.