Fiberglass That Fits Alexandria’s Housing Mix

From 19th-century brick rowhouses in Old Town to duplexes in Del Ray and newer buildings around Eisenhower Avenue, fiberglass remains a reliable way to boost comfort without major demolition. We match the format to the space—batts for open framing and blown-in fiberglass for wide, unobstructed areas—so cavities are fully filled and in firm contact with the air barrier. With correct density and detailing, rooms track the thermostat more closely through Potomac humidity and winter snaps off the river, while everyday noise between rooms softens.

Attic Upgrades for Rowhouses and Duplexes

Many Alexandria roofs have low slopes and generous cornice vents that create wind-wash at the perimeter. Before adding fiberglass, we set vent chutes, seal top-plate and chase leaks, and weatherstrip/insulate the scuttle or pull-down stair so the new R-value is not defeated at the access point. Blown-in fiberglass is then installed to an even depth across the field, with raised service platforms where storage is needed so coverage is not crushed. That uniform “blanket” calms the stack effect that pulls air through Old Town homes, helping top floors hold steady temps and reducing conditions that lead to winter ice at the eaves.

Clean Work, Local Compliance, Health-Conscious Options

Every project begins with a site walk and a clear scope that lists target R-values and assemblies. We protect floors and finishes, maintain safe clearances around recessed lights and flues, and orient facings correctly when a vapor retarder is part of the design. Low-VOC, formaldehyde-free fiberglass is available on request for sensitive households. Our documentation aligns with City of Alexandria expectations and HOA guidelines in historic areas: neat workmanship, proper ventilation paths, and a tidy handoff when we are done so you know exactly what was installed, where, and why.