About Advanced Waterproofing LLC
Advanced Waterproofing LLC is listed here as a basement waterproofing and crawl space company in Castle Rock, Washington.
Its website, advancedwaterproofingwa.com, names foundation inspection, foundation settlement repair, pier and beam foundation repair, crawl space foundation repair, foundation waterproofing and crawl space encapsulation. The quotes below link to the page where each one appears, so you can check them.
Service area on its website: Longview, WA Kelso, WA Castle Rock, WA Toledo, WA Centralia, WA.
Foundation services
- Foundation inspection
- Foundation settlement repair
- Pier and beam foundation repair
- Crawl space foundation repair
- Foundation waterproofing
- Crawl space encapsulation
- Foundation crack repair
What Advanced Waterproofing LLC says on its website
- Foundation inspection
Schedule your Free Structural Inspection
advancedwaterproofingwa.com - Foundation settlement repair
Minor floor shimming or localized post replacement may cost a few thousand dollars, while a full foundation stabilization or comprehensive house jacking can range from $10,000 to $30,000+
advancedwaterproofingwa.com - Pier and beam foundation repair
Post and Beam Replacement
advancedwaterproofingwa.com - Crawl space foundation repair · Crawl space encapsulation
Crawlspace Repair & Encapsulation
advancedwaterproofingwa.com - Foundation waterproofing
Expert Basement Waterproofing Vancouver, Longview & Castle Rock
advancedwaterproofingwa.com
Quoted from its website, read in October 2026.
Also typical: foundation crack repair. That's our assumption from the type of company, not a claim by the company – please confirm.
Inspections, warranty and payment
- Free estimate
Get a Free Estimate
advancedwaterproofingwa.com - Warranty
Lifetime Warranties Available
advancedwaterproofingwa.com
What its website says (October 2026). Ask for the warranty in writing and read what it covers before signing.
Advanced Waterproofing LLC on the map
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Other pins: companies within 30 miles. Map data © OpenStreetMap contributors.
Before you call, ask about
- Interior drain, exterior membrane or crack injection – and why
- Whether a battery backup sump pump is included
- What the warranty promises: a dry basement, or only the system
- How they'll handle structural cracks or bowing walls, if any
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Questions about this company
How do I contact Advanced Waterproofing LLC?
By phone at (360) 846-8519. Through its website, advancedwaterproofingwa.com.
What foundation services does Advanced Waterproofing LLC offer?
On its website it mentions foundation inspection, foundation settlement repair, pier and beam foundation repair, crawl space foundation repair, foundation waterproofing and crawl space encapsulation.
Does Advanced Waterproofing LLC offer free inspections?
Its website mentions “Free Estimate”. Ask what the visit includes and whether you'll get the findings in writing.
How much does foundation repair cost in Washington?
Estimated for Washington: sealing a crack about $263–$841; repairing a settling foundation about $4,730–$21,020, mostly depending on the number of piers. Try the cost calculator and compare written quotes.
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