The Mold Followed the Downspouts: A CMU Basement in Olney, MD

An Olney, MD block basement grew mold in three exact spots. Here's how we traced it to the downspouts and dried it out for good — interior French drain + dual sump.

Crawl space encapsulation DMV home protection

Apr 2026

By DMV Waterproofing Crawl Space Repair No Comments

Crawl Space Encapsulation: 7 Critical Components Every DMV Homeowner Should Know

Crawl Space Encapsulation: 7 Critical Components Every DMV Homeowner Should Know Crawl space encapsulation is a complete sealed envelope system. It is not just plastic on the dirt floor. In Washington DC, Maryland, and Northern Virginia, a real encapsulation system has to control ground vapor, humid outside air, condensation, insulation failure, drainage risk, and long-term […]

Apr 2026

By DMV Waterproofing DMV Soil No Comments

Underground Water in DMV Basements – When the Water Table Rises Beneath Your Home

From Our Field Notes · Entry Point 1 of 7 Underground Water DMV Basement – When the Water Table Rises Beneath Your Home The most common – and least visible – source of basement leaks in the DMV. Underground water DMV basement is the most common cause of leaks we see in the field – […]

how water gets into basement diagram showing hydrostatic pressure cove joint and wall seepage in a DMV home

Apr 2026

By DMV Waterproofing Basement Waterproofing No Comments

How Water Gets Into Your DMV Basement: 7 Critical Entry Points Every Smart Homeowner Should Know

From Our Field Notes How Water Gets Into Your DMV Basement 7 Critical Entry Points Every Smart Homeowner Should Know Every wet basement in the DMV comes down to a pathway. Homeowners often search how water gets into basement spaces after seeing water at the floor edge, damp block walls, a window well leak, or […]

DMV soil and water table — clay soil saturation and hydrostatic pressure against basement wall

Apr 2026

By DMV Waterproofing DMV Soil No Comments

DMV Soil & Water Table: Why Two Identical Homes Leak Differently

Post #2 in the DMV Waterproofing Field Notes series. Last week we talked about DMV foundation types. Today we go underneath – to the soil your foundation sits on, and the water table beneath it. DMV soil and water table conditions are the single biggest reason two identical homes on the same street leak completely […]

DMV foundation types — CMU, poured concrete, brick, and stone basement walls

Apr 2026

By DMV Waterproofing Foundation Repair No Comments

What’s Your DMV Foundation Made Of? The 4 Types We See Every Day

Post #1 in the DMV Waterproofing Field Notes series. If you haven’t read our open letter yet, start there. This post is about DMV foundation types – what your foundation is actually made of, and why that matters more than almost any other question you can ask about your basement. Because every foundation type fails […]

The Mold Followed the Downspouts: A CMU Basement in Olney, MD

Crawl Space Encapsulation: 7 Critical Components Every DMV Homeowner Should Know

Underground Water in DMV Basements – When the Water Table Rises Beneath Your Home

How Water Gets Into Your DMV Basement: 7 Critical Entry Points Every Smart Homeowner Should Know

DMV Soil & Water Table: Why Two Identical Homes Leak Differently

What’s Your DMV Foundation Made Of? The 4 Types We See Every Day

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