When something goes wrong underground, or with the land around your home, it usually doesn’t wait for a convenient time. A slope starts moving after a hard rain. A sewage line backs up and saturates your yard. A drainage system fails and water is pushing toward your foundation. These aren’t situations you can schedule around.
DW Excavation provides emergency excavation services throughout Sonoma County and Monterey County, including Santa Rosa, Windsor, Petaluma, Salinas, and Monterey. If you’re dealing with an active problem on your property, we can mobilize quickly — same-day in most cases — with the equipment and crew to assess and address it properly.
What Counts as an Excavation Emergency
Not every excavation job is urgent. But some situations get significantly worse with every hour of delay. Here’s what we’d consider a genuine emergency:
Slope movement or erosion — Cracking soil, leaning fences or trees, and slumping at the base of a slope are warning signs that ground stability is already compromised. In both Sonoma County’s clay-heavy hillsides and Monterey’s coastal terrain, slope failures can accelerate quickly after rainfall. If you’re seeing signs of movement, don’t wait to see what happens next.
Flooding or drainage failure — When water is pooling against your foundation, running toward your home, or your yard is saturated and won’t drain, the damage compounds daily. Poor grading and failed drainage systems are leading causes of foundation problems — and both are fixable if you catch them early.
Sewage or utility line failure — A broken sewer line isn’t just a plumbing problem. It’s a contamination risk, a structural risk (saturated soil undermines foundations), and often a code violation if left unaddressed. Sewage backup into a yard or a suspected utility strike during excavation both require immediate professional response.
Foundation exposure or undermining — If you can see your foundation, or if soil around it is washing away, the clock is ticking. Foundation issues that start with drainage or erosion problems can escalate into structural repairs that cost many times more than the original fix would have.
Retaining wall failure — A leaning or crumbling retaining wall isn’t just cosmetic. When saturated soil builds up behind a wall that can no longer hold it, you can lose the wall, the slope above it, and anything on that slope.
What We Handle in an Emergency
DW Excavation is a full-service excavation contractor, which matters in an emergency because real problems rarely fit into a single category. When we arrive on site, we assess the full situation — not just the visible symptom.
Common emergency scenarios we handle across Sonoma and Monterey County:
Slope stabilization and erosion control — We use targeted excavation, retaining wall preparation, drainage correction, and proper backfill and compaction to stop an active slope problem and prevent it from recurring. This is especially common in the rolling hills around Santa Rosa and Petaluma, and along Monterey’s coastal slopes where soil conditions and rainfall combine in particularly problematic ways.
Drainage trenching and stormwater redirection — French drains, stormwater trenches, and swale systems can redirect water away from structures before it causes serious damage. We engineer these to your specific slope and runoff patterns, not as one-size-fits-all solutions.
Grading correction — Improper grading is behind a lot of the flooding calls we get, particularly in low-lying Santa Rosa neighborhoods and areas near Salinas and Monterey prone to seasonal runoff. Re-grading an established property is something we do regularly — it doesn’t require starting from scratch.
Sewage and flood cleanup — After a line failure or major storm, we remove contaminated material, restore grading, and address the drainage conditions that caused the problem in the first place. Our sewage cleanup work follows all local environmental and safety guidelines. We’re not just digging — we’re restoring your site to a safe, functional state.
Retaining wall excavation and site prep — If a wall has failed, proper repair starts with expert excavation: correct drainage behind the wall, soil compaction, and slope alignment. Without that foundation work, a new wall will face the same fate as the old one.
Emergency trench work — Whether your storm drain system is overwhelmed, your septic is backed up, or you need immediate utility trench work, we can dig and redirect quickly. We assess the natural water paths on your property and install custom solutions that relieve pressure on your infrastructure.
What to Expect When You Call
We don’t send an estimator to look at photos and schedule something for next week. When you call us about an emergency, here’s what happens:
We ask you enough questions to understand what you’re dealing with. We tell you honestly whether it requires same-day response or whether it can wait 24 hours without getting significantly worse. We give you a clear picture of what we’ll do when we arrive and what it will take to fix the problem — not a vague assessment designed to upsell you.
We bring the right equipment for the job. Slope work, drainage trenching, and sewage cleanup each require different tools and approaches. Coming prepared means the work gets done right on the first visit, not after two trips back for different gear.
Why Licensing Matters in an Emergency
When something goes wrong on your property, you may be tempted to call whoever can show up fastest. That’s understandable — but it’s worth pausing for a moment.
Emergency excavation work in California involves disturbing soil, working near utilities, handling contaminated material, and sometimes working on slopes or near foundations. Done incorrectly, it can make the original problem worse and create liability issues for the property owner. It can also result in work that doesn’t pass inspection or doesn’t hold up through the next rainy season.
DW Excavation is a licensed and insured California contractor (CA LIC #1060838). That means we’re accountable to state standards, we carry proper insurance coverage, and our work is done to code. In an emergency, that matters.
Serving Sonoma County and Monterey County
We operate throughout both service areas, including Santa Rosa, Windsor, Petaluma, Rohnert Park, Cotati, and surrounding Sonoma County communities, as well as Salinas, Monterey, Pacific Grove, Seaside, and the broader Monterey County area.
We understand the local conditions in both regions — the clay soils and wildfire-impacted hillsides of Sonoma, the coastal terrain and seasonal flooding patterns of Monterey. That local knowledge shapes how we diagnose problems and what we recommend. A drainage solution that works in Petaluma may need to be engineered differently for a Monterey hillside.
If You’re Dealing with an Emergency Right Now
Don’t wait to see whether the situation stabilizes. Erosion, flooding, and slope movement rarely stabilize on their own. The longer the problem goes unaddressed, the more it costs to fix — and the more risk you’re carrying in the meantime.
Call DW Excavation at 707-601-9091 for emergency excavation services in Sonoma County and Monterey County. We’ll tell you what we’re seeing, what we recommend, and what it will take to make it right.
You can also request service online at dw-excavation.com.
Frequently Asked Questions
How quickly can you respond to an excavation emergency? In most cases, we can mobilize same-day for active emergencies in Sonoma and Monterey County, depending on location and the nature of the situation. When you call, we’ll give you an honest timeline based on current availability.
What should I do while I wait for help to arrive? Stay away from eroding slopes, saturated soil near foundations, and any area where ground stability is in question. If you have sewage backup, restrict access to the affected area and avoid contact with contaminated material. Document visible damage with photos — it helps us and can be useful for insurance purposes.
Can you fix grading or drainage on a property that’s already built? Yes. Grading correction on finished properties is something we do regularly. It doesn’t require demolishing structures or starting over — it requires knowing how to work around what’s already there.
Do you handle sewage cleanup, or just the excavation? Both. We isolate the affected area, remove contaminated material, disinfect surfaces, and restore proper drainage or septic systems as needed. All sewage cleanup work follows local safety and environmental guidelines.
What drainage systems work best for hillside properties? It depends on the slope, soil type, and runoff volume. French drains, swales, and stormwater trenches are all commonly used — sometimes in combination. We assess your specific conditions before recommending anything.
Does the work require permits? It depends on the scope. Some emergency repairs can proceed without permits; others — particularly grading or work that exceeds certain soil volumes — require permits in both Sonoma and Monterey County. We handle permit questions as part of the initial assessment so you’re not left guessing.