Basement & Foundation Answers

Straight answers to the questions Chicago homeowners actually ask, written by the people who do the work. Real prices included, sales pitch not.

A downspout emptying onto soaked ground beside a brick foundation during rain, the likely roof water source behind a wet basement.

Will Fixing My Gutters Fix My Wet Basement?

Sometimes gutters and grading fix a wet basement outright, and no interior system is needed. Here is how to tell whether roof water is… August 18, 2026 · Read the answer

Standing water sitting in a low spot of a Midwestern back yard the morning after heavy rain, with matted grass and a downspout discharging nearby.

Why Is There Standing Water in My Yard?

Water pools in Chicago-area yards because glacial clay will not take it, the lot is flat, or the roof empties in one place. Here… August 18, 2026 · Read the answer

A flashlight beam across the damp dirt floor of a vented crawl space, showing darkened joists and torn plastic sheeting, the usual source of a crawl space smell.

Why Does My Crawl Space Smell?

A crawl space smell is almost always moisture doing something to wood, soil or a pipe. Here is how to read the odor, and… August 18, 2026 · Read the answer

Chalky white powder blooming along the mortar joints of a concrete block basement wall, the efflorescence left behind when water passes through masonry.

Basement & Foundation Problems

What Is the White Powder on My Basement Walls?

That chalky white crust is efflorescence, mineral salt left behind by water passing through the wall. It is harmless by itself and it is… August 18, 2026 · Read the answer

An unfinished Chicago-area basement that is wet with no visible leak, showing a darkened damp patch and faint mineral staining on a bare concrete wall.

Basement Waterproofing

Why Is My Basement Wet With No Visible Leak?

Concrete is porous, so a basement can be wet with no drip to point at. How to trace hidden moisture to its source with… August 18, 2026 · Read the answer

An interior drain tile system being installed from inside a Chicago-area basement, with a narrow trench opened along the foundation wall and washed stone bedding a perforated pipe.

Basement Waterproofing

Can You Waterproof a Basement From the Inside Only?

Most Chicago basements are waterproofed entirely from the inside, no excavation required. How interior systems work, what they cost, and the few jobs that… August 18, 2026 · Read the answer

Shallow standing water and a dark tide line across the dirt floor of a Chicago-area crawl space after heavy rain, with damp block walls and floor joists overhead.

Why Is There Water in My Crawl Space After Rain?

Water shows up in a crawl space after rain because saturated clay has nowhere to send it and the crawl is the lowest opening.… August 18, 2026 · Read the answer

Dark water welling up around a cast iron basement floor drain grate on a bare concrete floor, the signature of a sewer backup rather than seepage.

Basement & Foundation Problems

Why Is Water Coming Up Through My Floor Drain?

Water rising out of a floor drain is a sewer problem, not a foundation problem. Here is how to tell it from seepage, what… August 18, 2026 · Read the answer

A newly set steel basement support column under a center carrying beam, with two temporary shoring posts still holding the load during a support column replacement.

Leveling & Structural Support

How Much Does It Cost to Replace a Basement Support Column?

Support column replacement runs $1,500 to $3,200 per column in the Chicago area. Here is what sits inside that range, what pushes it up,… August 18, 2026 · Read the answer

A gloved hand reaching for the reset button on a basement GFCI outlet above a sump pit after the sump pump stopped working, with water standing high in the crock.

Sump Pumps & Drain Tile

Why Did My Sump Pump Stop Working?

Most dead sump pumps trace back to power, a stuck float, a clogged impeller or a blocked discharge line. Work through them in order… August 18, 2026 · Read the answer

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