Indoor Air Quality in Old Town, NC

Why Old Town Homes Need Quality Indoor Air Quality

Old Town's historic homes present unique HVAC challenges — limited space for ductwork, older electrical systems, and preservation requirements. Ductless mini-splits and carefully planned installations are often the best solution.

Your indoor air can be 2-5x more polluted than outdoor air. We install advanced air quality solutions including REME HALO systems, air scrubbers, UV germicidal lights, and high-efficiency filtration to protect your family's health.

Old Town Wilmington's historic district presents indoor air quality challenges unlike anywhere else in our service area. Homes built in the 1800s and early 1900s were constructed with materials and techniques that modern building science has identified as problematic for air quality — lead paint on original trim and windows, plaster walls that harbor moisture and biological growth, and construction voids that allow unconditioned air, insects, and rodents to move through the building envelope. The Cape Fear River, just blocks from most Old Town addresses, contributes waterborne humidity and mold spores to the local air, and the district's dense urban layout traps pollutants between closely spaced buildings rather than allowing wind to disperse them. Many Old Town homes have been retrofitted with HVAC systems over the decades, with ductwork threaded through closets, chases, and wall cavities in configurations that were dictated by the existing architecture rather than optimal airflow design. These retrofit duct installations are often difficult to access for cleaning and inspection, and they can develop biological contamination in hidden sections that is difficult to detect without specialized equipment. Indoor air quality solutions for Old Town homes require a nuanced approach that respects the historic character while delivering modern protection — UV germicidal lights that fit in compact air handler spaces, filters that work with non-standard duct configurations, and duct cleaning methods that do not damage historic construction.

Old Town homeowners face air quality challenges at both the macro and micro level. At the macro level, these homes were never designed for mechanical conditioning, and the HVAC systems that have been added over the years may introduce as many air quality problems as they solve — ductwork in damp crawl spaces or uninsulated wall cavities develops mold, undersized return air pathways cause pressure imbalances that draw unconditioned air through cracks in the building envelope, and original chimney flues and transom openings create pathways for outdoor contaminants to bypass the HVAC system entirely. At the micro level, the materials in historic homes can contribute their own contaminants — plaster dust from walls that shift with seasonal humidity changes, old insulation materials including potentially vermiculite or asbestos wraps, and the biological material that accumulates in wall voids, under stairways, and in other hidden spaces that are unique to 150-year-old construction. We approach Old Town air quality with the sensitivity these homes require. Our duct cleaning uses camera inspection to assess inaccessible sections before proceeding, and our cleaning methods are tailored to avoid disturbing historic materials. UV germicidal light installations are sized to fit the compact air handlers common in Old Town retrofits, and our filter recommendations account for the airflow limitations of retrofit ductwork that may not support the pressure drop of standard high-MERV filters.

Old Town Wilmington's irreplaceable historic homes require air quality solutions designed for the unique challenges of 19th-century construction. Air Support combines preservation sensitivity with modern air quality technology to protect these landmark properties.