Basement Water Extraction & Crawl Space Water Removal — Bay Area, CA

Water in your basement or crawl space? Cardona Construction pumps it out fast — then fixes the drainage that let it in. Family-owned and Bay Area-based for 40+ years, rated 5.0★ on Google.

40+ Years in the Bay Area   |  Licensed — Lic #1100158   |   Family-Owned & Operated   |   5.0★ Google (40 Reviews)

Water Under Your Home Doesn't Leave on Its Own

Whether it's a hillside basement in Oakland or a crawl space in Walnut Creek, the problem is the same: once rain gets under your home, it has nowhere to go. Our clay soils hold water against the foundation from October through April, so a flooded basement or crawl space can keep refilling for days after the storm ends.


Every day it sits, the bill grows — soaked framing starts to rot, insulation fails, mold gets a foothold, and pests move in. Fast basement water extraction limits the damage. Fixing the drainage that let the water in keeps you from paying for it twice.

Water in your basement right now? Before we arrive:

  • If water is near outlets, appliances, or your electrical panel, stay out and call PG&E.
  • Move what you can to higher ground — boxes, rugs, electronics.
  • Take photos and video of the water and damage before anything is moved, for your insurance claim.
  • Call us at (925) 642-6349 and tell us how much water you're seeing and where it's coming in.

Why Choose Us

Why Bay Area Homeowners Call Cardona Construction

Most water removal companies pump out the water and leave. We're a drainage and foundation contractor — 40+ years of it — so after we get the water out, we find where it came in and tell you exactly what it takes to stop it. That's the difference between a cleanup and a fix.

What you get:

Water out fast

Pumps sized for basement floods and tight crawl spaces, so standing water is gone before it does more damage.

Crawl spaces, not just basements

Most Bay Area homes sit on crawl spaces. Our crews work in low, dirt-floored spaces every day.

We find the source

A failed drain, bad grading, a foundation crack, a dead sump pump — we diagnose why the water got in.

One team for the permanent fix

French drains, sump systems, drainage, and foundation repair — all in-house, no handoff to another contractor.

Our Services

Basement & Crawl Space Water Removal Services

Every flood is different — how much water, where it's coming from, and how hard the space is to get into. Here's how we handle it:

Emergency Basement Water Extraction

Standing water pumped out of basements, lower levels, and below-grade rooms, then checked for structural damage.

Crawl Space Water Removal

Standing water cleared from crawl spaces — including tight, low-clearance spaces most crews won't enter.

Basement & Crawl Space Drying

Dehumidifiers and airflow to dry out framing and subfloor after extraction.

Permanent Fix So It Doesn't Flood Again

Sump pump installation and foundation drainage that keep the next storm outside.

Keep the Water Out

Which Drainage Solution Fits Your Basement or Crawl Space?

Getting the water out is step one. Keeping it out depends on where it's coming from — and the right fix for a hillside basement in Oakland isn't always the right fix for a crawl space in Walnut Creek. Here's how the most common scenarios match up:

  • Water pooling at the low point of your crawl space after every storm

    Best fit Crawl Space Sump Pump
    Why it works

    Collects water that's already inside and pumps it out automatically, in a basin sized for low clearance.

  • Water rising up through a basement floor or collecting in one corner

    Best fit Sump Pump Installation
    Why it works

    A pit at the basement's lowest point catches groundwater and discharges it before it spreads.

  • Water seeping in along the foundation walls, or your yard slopes toward the house

    Best fit French Drain
    Why it works

    A gravel-and-pipe trench intercepts groundwater and redirects it before it reaches the foundation.

  • Wet walls or footings in an older home with no working perimeter drain

    Best fit Foundation Drainage
    Why it works

    Perimeter drainage at footing level relieves the water pressure pushing through your foundation.

  • A soggy yard, water around footings, or a hillside lot that funnels runoff to the house

    Best fit Subsurface Drains
    Why it works

    A buried drain network carries water across the lot and away from the house, not just around it.

  • Visible cracks in foundation walls or slab where water gets in

    Best fit Foundation Repair
    Why it works

    Seals and stabilizes the entry point. Usually paired with drainage, so the cracks don't come back.

  • Water from more than one direction, or you're not sure where it's coming from

    Best fit Drainage Solutions
    Why it works

    A whole-property plan that combines the right systems for your lot, instead of patching one spot.

Many Bay Area homes need two of these working together — often a sump system inside plus a French drain outside. We'll tell you which ones your home actually needs during a free inspection, not upsell you on all of them.

Our Reviews

What Bay Area Homeowners Say

Every flood is different — how much water, where it's coming from, and how hard the space is to get into. Here's how we handle it:

Our Process

Our Process: From Flooded to Fixed

Call & Fast Response

Tell us what you're seeing. Call us for the current response window.

Basement or Crawl Space Water Extraction

We pump out the standing water and check framing, subfloor, and foundation for damage.

Find the Source

We trace how the water got in and give you a clear, written quote for the fix — no pressure.

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Permanent Fix

Drainage, sump, or foundation work so the next storm stays outside.

Common Questions

Frequently Asked Questions

  • How much does basement water extraction cost?

    It depends on how much water there is, how easy the space is to get into, and whether it needs drying or a drainage fix afterward. We give you a clear price on site before any work starts — never a guess over the phone.

  • How fast can you get to my home?

    Call (925) 642-6349 and we'll give you an honest arrival time, not a vague promise.

  • Can I remove water from my basement myself?

    A little clean water can be handled with a wet/dry vac or a rental pump. Call a pro if the water is near anything electrical, keeps coming back, or is in a crawl space you can barely get into. And pumping it out doesn't fix why it got in — that's usually the bigger job.

  • Will homeowners insurance cover water in my basement?

    It depends on the cause and your policy. A sudden burst pipe is often covered; groundwater seeping in during a storm often isn't without separate flood coverage. Photograph everything before cleanup and call your insurer early.

  • Why does my basement or crawl space flood every winter?

    Almost always it's our clay soil holding rainwater against the foundation with nowhere to drain. Removing the water treats the symptom. The fix is usually a crawl space sump pump, a French drain, or subsurface drains that carry water away from the house.

Related Services

Related Drainage & Foundation Services

Crawl Space Sump Pump Installation

Stop crawl space flooding before the next storm.

Learn more →

Sump Pump Installation

Keep water pumped out automatically, storm after storm.

Learn more →

French Drain Installation

Redirect groundwater before it reaches your foundation.

Learn more →

Foundation Drainage

Perimeter drainage that protects the foundation itself.

Learn more →

Drainage Solutions

Complete water management for flood-prone lots.

Learn more →

Foundation Repair

Stabilize cracks caused by long-term moisture damage.

Learn more →

Service Areas

Basement Water Extraction Across the Bay Area

LET'S CONNECT

Water Where It Shouldn't Be? Call Now.

Every hour standing water sits under your home, it does more damage. Call a Bay Area team that's handled drainage and foundation work for over four decades — we'll get the water out and make sure it stays out.