

Project Overview
Indoor air quality is something most homeowners don't think about until symptoms appear — and by that point, the problem is usually well established. This Wellesley family's experience is unfortunately common: years of accumulated dust, pet dander, and microbial growth inside the ductwork were being circulated throughout the home every time the HVAC system ran.
Our approach goes beyond simply blowing air through the ducts. We use professional-grade equipment to physically remove contaminants, then install preventive measures to keep the air clean long-term. The combination of a media air cleaner and UV germicidal light creates a two-layer defense: the filter captures particulates, while the UV light kills biological contaminants like mold spores and bacteria.
The family noticed a dramatic improvement within the first 48 hours. The musty odor was completely gone, visible dust from vents stopped, and allergy symptoms began subsiding within a week. At their six-month follow-up, the homeowner reported that this was the single best home improvement they had ever made.
The Challenge
A Wellesley family had been experiencing worsening allergy symptoms — persistent sneezing, watery eyes, and sinus congestion — that seemed to intensify whenever the HVAC system was running. Visible dust was blowing from supply registers when the system kicked on, and a musty, stale odor permeated the house. The home's ductwork had not been cleaned since the house was built 12 years ago. A preliminary inspection revealed heavy dust accumulation, pet dander buildup (the family had two dogs), and suspected mold growth near the evaporator coil where condensation had been collecting.
Our Solution
We performed a full whole-home duct cleaning using our truck-mounted HEPA-filtered vacuum system, which generates powerful negative pressure to extract all debris from the duct network. Every supply and return duct run was individually cleaned using rotating brush tools and compressed air whips. We removed and hand-washed all register covers. The evaporator coil was chemically cleaned with an EPA-registered antimicrobial solution to eliminate the mold growth. After cleaning, we installed a Honeywell F100 whole-home media air cleaner (MERV 11) in the return air plenum and a UV-C germicidal light positioned above the evaporator coil to continuously prevent future mold and bacterial growth. A fresh set of high-quality pleated filters completed the system upgrade.
Results & Outcomes
- Allergy symptoms significantly reduced within one week
- Musty odor completely eliminated
- Visible dust from registers stopped entirely
- Air quality test showed 85% reduction in airborne particulates
Project Details
Service
Indoor Air Quality
Location
Wellesley, MA
Duration
1 Day
Equipment
Honeywell
Scope
Residential
Result
Completed Successfully
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