Expert Mold Inspection & Testing in Winona, MN
Winona is a community built on a sandy plain between the limestone bluffs and the mighty river, a geography that creates a stunning backdrop but also a high-moisture environment where mold can thrive if left unchecked.
At MD Mold, we provide professional, laboratory-backed mold inspection and testing services tailored to the specific environmental needs of Winona and the surrounding river valley.
Preserving Minnesota’s Largest Victorian Collection
Winona’s history is one of rapid growth and architectural ambition. Founded in 1851 and fueled by the lumber and wheat booms, the city became a central rail and river hub. Today, Winona boasts the state's largest collection of Victorian commercial architecture, much of which is preserved in the East Second Street and Third Street districts.
Our local history is expertly curated by the Winona County Historical Society, headquartered in the historic 1915 Armory. Notable landmarks we are proud to help protect include:
The Winona County Courthouse: A Richardsonian Romanesque masterpiece that has been a symbol of local resilience since 1889.
The Basilica of Saint Stanislaus Kostka: A stunning example of Beaux-Arts architecture that reflects the heritage of Winona's early Polish community.
The J.R. Watkins Medical Company Complex: A testament to Winona’s industrial legacy and a National Historic Landmark.
Just as the Heritage Preservation Commission works to save historic facades from decay, our mold inspection services work to protect the structural integrity and indoor air quality of these irreplaceable properties.
Winona’s Specific Mold & Moisture Risks
Living in a river town means managing "Island City" humidity. The environmental factors in Winona are distinct from inland communities:
River Valley Humidity: The Mississippi River and Lake Winona create a constant source of ambient moisture. During Minnesota’s humid summers, this can lead to condensation in attics and wall cavities, particularly in the "Dry Prairie" soils where many downtown buildings are located.
Floodplain Dynamics: Properties near Prairie Island or the low-lying river bottoms face higher water tables. This often manifests as "wicking" moisture in historic stone foundations or seepage in modern basements.
The "Lumberman" Era Materials: Many of Winona’s historic mansions, such as those in the Windom Park District, feature original wood and plaster. While beautiful, these organic materials are highly susceptible to mold colonization if they remain damp for more than 48 hours.
Our Professional Testing Protocol
MD Mold provides a scientific, non-invasive approach to identifying mold and its moisture sources. We focus on providing you with data, not a sales pitch for remediation.
ServiceWinona-Specific ApplicationAir Quality SamplingWe compare indoor spore counts to the "river valley baseline" to determine if your home is concentrating harmful molds.Infrared Moisture DetectionEssential for scanning the thick masonry and multiple layers of historic downtown commercial buildings.Surface & Tape SamplingLaboratory identification of visible growth to determine if it is a common mildew or a species requiring specialized handling.Wall Cavity Air ChecksNon-intrusive testing to see if mold is hidden behind the beautiful but thick lath-and-plaster walls of historic residences.
Local Insight: If you’ve noticed a "musty" smell after a period of heavy rain or high humidity near the lake, it’s likely an indicator of hidden moisture. In a town with as much history as Winona, "old house smell" is often actually a mold issue that can be corrected.
Secure Your Property’s Health
Whether you are managing a storefront in the historic Third Street district or raising a family in a modern home overlooking the bluffs, we are your partners in indoor wellness. We serve the entire Winona area, from Goodview to the Homer ridge.
Call MD Mold for a mold inspection today!