Basement Waterproofing cost per linear foot in Portland
Basement Waterproofing cost per linear foot in Portland, Oregon in 2026.
Low
$3,550
Average
$7,650
High
$14,200
Portland crews quote about $47 – $295 per linear foot.
Multiply local unit rates by your real measurements.
What drives basement waterproofing prices in Portland
Local labor, permitting and climate move Portland prices away from the national average.
Labor market
Portland labor prices well above the national average with tight scheduling in summer.
Permits
City permits and design review can add weeks to exterior projects.
Climate
Long wet season limits the exterior build window and demands rot-resistant materials.
Portland unit pricing by material
Ways to lower your Portland price
- Do the cheap exterior fixes first — gutters, downspout extensions and grading solve many wet basements for under $1,000.
- Choose interior drain tile over exterior excavation unless the wall itself is failing.
- Get bids from waterproofing specialists and a general contractor; approaches and prices differ enormously.
- Ask about a transferable lifetime warranty — it holds value at resale.
- Install the sump and drainage before finishing the basement, never after.
Portland questions
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