Basement Waterproofing Services in Seattle, WA
Most basement questions from homeowners in Seattle, WA fall under five headings, set out here in plain terms. Whichever one matches, a request is handed to a single independent local contractor, who reaches out and puts any price in writing. This free referral site does no work itself.
Every Service in One Place
Full basement waterproofing covers whole-basement systems: most often a drain along the inside of the footing that carries water to a sump, or a membrane applied outside once the soil is dug back. Poured walls, block and older concrete each suit different methods, and the till and clay under many Seattle lots can shape the choice.
Basement leak repair targets a single entry point, such as a window well, a pipe opening or the joint where wall meets slab. It also explains how seepage differs from a backup in a combined-sewer area.
Foundation crack repair deals with poured and block walls, explains injection, and notes which cracks are worth having looked at soon, including on sloped lots.
Sump pump installation explains how a pit, pump, check valve, battery backup and alarm work, and where discharge water should go. Hooking a sump into drain lines falls to a licensed plumbing contractor, under a permit.
Basement drainage is about moving water away before it reaches the foundation: downspouts, grading, footing drains and French drains, with background on side sewers and backwater valves.
Not Sure Where to Start?
You don't have to work out the cause yourself. Find the description below that sounds most like your basement; the contractor sorts out the details on site.
- Damp along several walls all winter. Begin with the full waterproofing and drainage pages.
- One wet patch that keeps coming back. Leak repair is usually the right first read.
- A crack that seeps during long rains. See the crack repair page, and note whether the wall is poured or block.
- A pump that runs constantly or has stopped. The sump pump page covers what a replacement involves.
- Puddles against the house after rain. Downspouts, gutters and grading on the drainage page may be enough.
- Water coming up a floor drain. That likely means a sewer backup. In Seattle, report it to Seattle Public Utilities at (206) 386-1800; in another city, contact its public works department or sewer district.
Ask About Your Basement
Use the short form below when you have a moment. One independent contractor will reach out about a visit and leave you with a written estimate to consider. Any advertising money comes from contractors; homeowners never pay and never receive anything for asking.