About In Depth Excavation
In Depth Excavation is a basement waterproofing and crawl space company serving the Silver Firs area, Washington.
On its website (indepthex.com) it mentions foundation waterproofing. The quotes below link to the page where each one appears, so you can check them.
Opening hours on Google Maps: Monday to Sunday 7 am–7 pm.
Service-area company. Google Maps doesn't publish a street address for it; it appears in searches around Silver Firs. Ask where it's based and whether it covers your ZIP code.
Foundation services
What In Depth Excavation says on its website
- Foundation waterproofing
French Drain Installation & Repair Services
indepthex.com
Quoted from its website, read in October 2026.
Also typical: crawl space encapsulation, 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 Quote
indepthex.com
What its website says (October 2026). Ask for the warranty in writing and read what it covers before signing.
Opening hours
| Monday | 7 am–7 pm |
|---|---|
| Tuesday | 7 am–7 pm |
| Wednesday | 7 am–7 pm |
| Thursday | 7 am–7 pm |
| Friday | 7 am–7 pm |
| Saturday | 7 am–7 pm |
| Sunday | 7 am–7 pm |
As listed on Google Maps (July 2026). Call before visiting – hours change.
In Depth Excavation on the map
Loading map…
Dashed pin = service area, no street address. 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 In Depth Excavation?
By phone at (425) 367-1521. Through its website, indepthex.com.
When is In Depth Excavation open?
Opening hours on Google Maps: Monday to Sunday 7 am–7 pm.
What foundation services does In Depth Excavation offer?
On its website it mentions foundation waterproofing.
Does In Depth Excavation offer free inspections?
Its website mentions “Free Quote”. 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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