Air Duct Cleaning in Alexandria - One Flat Price, Before-and-After Photos

Air Duct Cleaning in Alexandria, VA

HVAC cleaning in Alexandria typically costs $380-$620 for a full system, with air quality and sanitizing services ranging $220-$480 depending on contamination level and system accessibility. The city’s mix of historic rowhouses with retrofitted ductwork and mid-century homes with original fiberglass-lined systems creates contamination patterns we don’t see in newer Northern Virginia suburbs. Call (240) 318-7712 for a written estimate before any work begins.

Call (240) 318-7712

CleanRun crews coordinate dispatch from our Washington, DC office and serve Alexandria homeowners with documented photo records on every visit, starting with a written price under Haven Standard Clause 1.

Why Alexandria Homes Are Different

Alexandria sits directly on the Potomac River and tidal Hunting Creek, where ground-level relative humidity stays elevated even by DC metro standards. Summer spikes above 75-80% RH followed by forced-air heating in winter create ideal cycling conditions for mold inside duct lining, especially in the flex duct and fiberglass-lined systems common in Del Ray and the West End’s 1950s-1970s housing stock.

Old Town’s 18th- and 19th-century brick rowhouses present a separate challenge. HVAC was retrofitted into these structures decades after construction, routing ductwork through cramped plaster-and-lathe walls and shallow attic cavities never designed for mechanical systems. The Board of Architectural Review restricts exterior alterations to protected structures, which often prevents rerouting deteriorated runs. Professional cleaning and sanitizing becomes the only viable path for maintaining air quality in systems that cannot legally be reconfigured.

Our Main Alexandria Services

Homeowners in Alexandria most often call us about these three services:

Air Duct Cleaning in Alexandria

We clean the full duct network in Old Town rowhouses with retrofitted chases and in West End Cape Cods with original sheet-metal runs that have never been serviced. Every job includes a documented photo record of each duct run, before and after, delivered as part of the standard job record. Air Duct Cleaning in Alexandria covers the specific access challenges these housing types present.

Dryer Vent Cleaning in Alexandria

Dryer vents in Alexandria’s older homes often run through exterior masonry walls with limited cleanout access, while mid-century ramblers may have long horizontal runs under crawl spaces that trap lint. We photograph the full vent path and measure airflow before and after. Dryer Vent Cleaning in Alexandria addresses the fire risk specific to these configurations.

Duct Repair & Sealing in Alexandria

Historic district restrictions and aging fiberglass duct board in 1960s garden apartments make replacement impractical in many Alexandria properties. We seal deteriorated seams and repair accessible sections, with all work photographed and priced in writing before starting. Duct Repair & Sealing in Alexandria covers what’s possible when full replacement isn’t viable.

Before

After

HVAC Cleaning in Alexandria

Alexandria’s humid subtropical climate and two distinct housing eras create HVAC contamination patterns that require targeted cleaning. In Old Town, we regularly find evaporator coils coated with debris that entered through poorly sealed retrofitted plenums; in Del Ray and Arlandria, original blower assemblies from the 1970s harbor mold that circulates through fiberglass-lined ductwork every time the fan cycles. HVAC Cleaning from CleanRun addresses each component with equipment matched to the contamination type.

Evaporator Coil Cleaning

Signs you need it

Ice formation on refrigerant lines, weak airflow from registers, or musty odor when AC first cycles on in humid Alexandria summers.

What it costs in Alexandria

Evaporator coil cleaning in Alexandria typically runs $180-$320 depending on accessibility and whether the coil requires removal for cleaning.

How we do it

We access the coil through the plenum or remove the panel, apply foaming cleaner approved for indoor air handler use, rinse with low-pressure water capture, and photograph the coil surface before and after.

Blower Cleaning

Signs you need it

Vibration or noise from the air handler, uneven heating or cooling between rooms, or visible dust puffing from registers at startup.

What it costs in Alexandria

Blower assembly cleaning in Alexandria ranges $160-$280 for standard residential units, with older systems requiring additional disassembly time.

How we do it

We remove the blower housing, clean the squirrel cage and motor housing with compressed air and contact cleaning, balance the assembly, and document RPM and amp draw before reassembly.

What HVAC Cleaning Costs in Alexandria

How often should HVAC cleaning be done in Alexandria?

Every 3-5 years for standard residential systems, but every 2-3 years in waterfront zones like Old Town and the Potomac Yard area where humidity accelerates coil contamination. Call (240) 318-7712 to schedule an inspection with a written scope.

Does HVAC cleaning improve energy bills in humid climates?

Yes, a clean evaporator coil transfers heat efficiently and a balanced blower moves design airflow, both of which reduce runtime in Alexandria’s extended cooling season. We measure static pressure before and after to document improvement.

Air Quality & Sanitizing in Alexandria

Alexandria’s persistently high humidity and aging duct infrastructure create conditions where biological contamination outpaces what filter changes alone can manage. In Old Town rowhouses with 40-60-year-old retrofitted systems, we find mold colonization at duct elbows where condensation pools; in West End garden apartments, fiberglass liner degradation releases particulate into occupied spaces. Air Quality & Sanitizing targets these biological and particulate sources with application equipment from Abatement Technologies and Guardsman.

Mold Treatment

Signs you need it

Visible growth on register faces or duct lining, musty odor that intensifies when HVAC cycles on, or recent water intrusion in crawl spaces common to Del Ray ramblers.

What it costs in Alexandria

Whole-system mold treatment in Alexandria runs $320-$580 depending on contamination extent and whether physical removal of degraded liner is required.

How we do it

We apply EPA-registered antimicrobial through the full duct network using negative-pressure containment, treat the evaporator coil and plenum, and collect post-treatment samples for the documented photo record.

UV Light Installation

Signs you need it

Recurring mold despite previous cleaning, chronic allergy symptoms in household members, or systems in chronically damp crawl spaces or basements.

What it costs in Alexandria

UV-C lamp installation in Alexandria residential air handlers ranges $280-$450 including lamp, ballast, and mounting hardware rated for the application.

How we do it

We mount the lamp downstream of the coil with sight-glass access for annual inspection, wire to the blower interlock, and include replacement schedule in the written job record.

What Air Quality & Sanitizing Costs in Alexandria

Is mold in ducts common in Alexandria’s historic homes?

Yes, the combination of uninsulated plaster chases, high humidity, and retrofitted flex duct creates condensation points we treat regularly in Old Town and the Carlyle district. We photograph each finding and include it in the written scope.

Will sanitizing eliminate odors from old ductwork?

Odor removal addresses biological sources effectively; odors from deteriorating duct material itself may require repair or sealing instead, which we identify during inspection and note in the written price.

Brands We Service in Alexandria

We stock parts and service equipment from Aprilaire, Honeywell, and Rotobrush, with Abatement Technologies HEPA filtration and Guardsman application systems on every truck. Most repairs and installations complete in one visit; what we don’t carry coordinates from our DC office for next-day delivery. See our brands for full equipment specifications.

Pricing for Air Duct Cleaning in Alexandria, VA

Neighborhoods We Serve in Alexandria

CleanRun crews work across Alexandria’s full housing spectrum, from Old Town’s historic rowhouses to the mid-century stock of the West End. Scheduling runs from our DC office with routes grouped by area to minimize transit time.

• Old Town
• Del Ray
• Arlandria
• West End
• Carlyle

Service Area - Cities Near Alexandria

We serve homeowners throughout Northern Virginia’s inner suburbs, with crews regularly working in Arlington, VA, Springfield, VA, Falls Church, VA, and Vienna, VA. All appointments are scheduled and dispatched from our Washington, DC coordination office.

FAQs About Air Duct Cleaning in Alexandria