Basement Waterproofing in Clackamas County
Before you finish a basement, keep it dry. Gencon provides basement waterproofing and moisture control across Clackamas County, built for our wet climate.
Talk to our team: 503-825-0123In a region that sees 40+ inches of rain a year, waterproofing is the step that decides whether a finished basement stays finished. Here's how we keep Clackamas County basements dry: before, not after, the walls go up.
Interior vs. exterior waterproofing
Exterior waterproofing addresses water before it reaches the foundation: grading, footing drains, and membranes on the outside of the wall. Interior systems manage water that's already getting in: perimeter drains, a sump pump, and vapor barriers. Which you need depends on how and where water is coming in, which is why we diagnose before we quote.
What a dry basement actually requires
- Proper exterior grading and downspout extensions to move water away from the house
- Footing or perimeter drains routed to daylight or a sump
- A sump pump where drainage can't move water passively
- Vapor barriers and, where needed, waterproof membranes on the walls
- Sealed penetrations and a plan for humidity control
Why we insist on it before finishing
It is dramatically cheaper to control moisture before framing than to tear out finished walls, insulation, and flooring after mold appears. We won't finish a basement we haven't made dry, not because it pads the job, but because we don't want to be back in a year fixing a problem we could have prevented.
Frequently asked questions
- How do I know if my basement needs waterproofing?
- Musty smells, efflorescence (white mineral streaks) on the walls, damp spots after heavy rain, or any past seepage are all signs. In our climate, most unfinished basements benefit from at least moisture control before finishing.
- Will a sump pump alone keep my basement dry?
- Sometimes, but a sump is one tool. Lasting dryness usually combines exterior grading, drainage, vapor barriers, and the sump working together. We match the system to how water is actually entering.
- Can you waterproof a basement that's already finished?
- Yes, though it's more involved. We may need to open sections of wall or work from the exterior. It's a strong argument for doing waterproofing right the first time, before finishing.
Basement Waterproofing is part of Gencon's basement finishing work across Clackamas County. Explore related services:
Thinking about basement waterproofing?
Weigh your options with a team that installs this every week. No pressure to book.