Air Duct Cleaning in Alexandria - One Price Per System, Agreed Before We Start

Air Duct Cleaning in Alexandria, VA

Whole-system HVAC cleaning in Alexandria typically runs $450-$850 for a standard single-family home, with jobs in Old Town row houses and homes with unconditioned crawl spaces landing toward the higher end due to access constraints. We’re CleanRun Duct Repair & Cleaning, and our crews handle the specific challenges that come with Alexandria’s mix of 18th-century masonry, mid-century Cape Cods, and river-humidity duct conditions that accelerate mold growth. Call (240) 363-3380 for a written estimate before any work begins.

Call (240) 363-3380

Why Alexandria Homes Are Different

Alexandria’s position along the Potomac River traps summer humidity at 80-90% relative levels, and ductwork in the many homes with unconditioned crawl spaces or damp brick basements accumulates mold and mildew far faster than in drier inland markets. The Old Town neighborhood contains one of the densest concentrations of pre-Civil War and 18th-century brick row houses in the DC metro area, homes built entirely around fireplaces and radiators, with central ductwork retrofit decades later into spaces never designed for it. Those retrofit duct runs snake through masonry chases, shallow crawl spaces under raised heart-pine floors, and behind historic plaster walls, creating non-standard layouts and severely limited access points that demand different equipment and techniques than any purpose-built duct system in neighboring Fairfax or Arlington.

Properties inside the Old and Historic Alexandria District face review before any structural modification, which effectively prohibits cutting new sheet-metal access panels in many row houses. Local technicians learn to work entirely through existing registers using small-diameter brush systems, a constraint almost never encountered on jobs just across the line in Arlington County. The mid-century Cape Cods and bungalows in Del Ray and Rosemont, plus the 1970s-80s garden apartments and townhome clusters in the West End near the Beltway, frequently still contain original galvanized or early flex duct that has never been professionally serviced.

Our Main Alexandria Services

These are the three services Alexandria homeowners call about most, each with its own dedicated page for full pricing and scope details.

Air Duct Cleaning in Alexandria

We clean every duct run from register to plenum, photographing the interior before and after so you can see what was actually removed. In Alexandria’s older homes, we often find retrofit ductwork squeezed through masonry chases with no cleanout ports, requiring Rotobrush systems operated through existing registers only. Air Duct Cleaning in Alexandria covers full scope, pricing, and what to expect for your home’s era.

Dryer Vent Cleaning in Alexandria

Dryer vents in Alexandria’s row houses and townhomes frequently run longer than code minimums through interior walls or shared chases, creating lint accumulation points that standard brushes miss. We use Nikro equipment with camera verification to confirm the full path is clear. Dryer Vent Cleaning in Alexandria has full details on scope and written pricing.

Duct Repair & Sealing in Alexandria

Retrofit ductwork in Old Town and Del Ray separates at seams and leaks at connections never properly sealed during original installation. We repair and seal using methods that don’t require cutting new access panels in historic fabric. Duct Repair & Sealing in Alexandria covers repair scope and the 365-Day Done Right Promise.

Before

After

HVAC Cleaning in Alexandria

Alexandria’s river-humidity climate and housing stock spanning three centuries create conditions we don’t see on jobs in drier Fairfax or newer Arlington builds. Evaporator coils in homes near the Potomac develop biofilm in 18-24 months, not the 3-4 year intervals common inland, and blower assemblies in unconditioned crawl spaces accumulate actual mud during humid summer weeks. HVAC Cleaning is the core service that addresses these components directly.

Evaporator Coil Cleaning

Signs you need it

Ice buildup on refrigerant lines, weak airflow from registers, or musty odors when the AC first cycles on.

What it costs in Alexandria

Evaporator coil cleaning in Alexandria typically runs $280-$420, with coils in tight attic or crawl-space installations toward the higher end.

How we do it

We remove the access panel, apply foaming cleaner rated for aluminum fins, rinse with low-pressure water capture, and photograph the coil before and after.

Blower Cleaning

Signs you need it

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

What it costs in Alexandria

Blower assembly cleaning in Alexandria typically runs $220-$350, depending on whether the motor requires removal for full access.

How we do it

We remove the blower wheel and housing, clean each blade and the squirrel cage with compressed air and solvent, balance the assembly, and document with before-and-after photos.

What HVAC Cleaning Costs in Alexandria

How often should HVAC cleaning happen in Alexandria?

Every 18-24 months for homes within a mile of the Potomac, where summer humidity drives faster biofilm growth; every 3 years for drier, newer construction in the West End. Call (240) 363-3380 and we’ll assess your home’s specific conditions.

Can you clean HVAC components without cutting access panels in historic homes?

Yes, we work through existing service panels and register openings using flexible shafts and mini-camera guidance, preserving plaster and trim per Old and Historic Alexandria District guidelines. Call (240) 363-3380 for a written scope.

Air Quality & Sanitizing in Alexandria

Alexandria’s 80-90% summer humidity and prevalence of unconditioned crawl spaces create conditions where duct mold becomes a genuine health issue, not a sales pitch. We treat what we document, and we document what we find. Air Quality & Sanitizing covers the full range of treatments available.

Mold Treatment

Signs you need it

Visible black or green growth on register surfaces, musty odors that persist after cleaning, or allergy symptoms that worsen when the system runs.

What it costs in Alexandria

Whole-system mold treatment in Alexandria typically runs $380-$650, with severe cases requiring multiple applications.

How we do it

We apply EPA-registered fungistat to all interior duct surfaces using negative-pressure extraction, then verify with post-treatment photography.

UV Light Installation

Signs you need it

Recurring mold after professional cleaning, chronic musty odors, or family members with mold-sensitive respiratory conditions.

What it costs in Alexandria

UV-C light installation in Alexandria typically runs $320-$480 per unit, plus electrical connection.

How we do it

We mount a 254-nanometer UV-C lamp in the supply plenum, wire to the blower circuit for automatic operation, and include bulb replacement scheduling.

What Air Quality & Sanitizing Costs in Alexandria

Is mold in Alexandria ducts actually dangerous, or just unpleasant?

For most healthy adults it’s a nuisance allergen, but for children, elderly residents, or anyone with asthma or immune compromise, documented duct mold is a genuine respiratory trigger worth treating. Call (240) 363-3380 for a written assessment.

Does UV light actually prevent mold, or just slow it?

Properly installed UV-C at 254 nanometers kills airborne mold spores passing through the plenum, but it does not remove existing growth; we treat first, then install to prevent recurrence. Call (240) 363-3380 for scope and written price.

Brands We Service in Alexandria

We stock parts and service equipment from Honeywell, Aprilaire, and Guardsman, with most common filters, UV bulbs, and sanitizer cartridges available same-day through our Washington, DC dispatch office. Our brands page lists full compatibility.

Pricing for Air Duct Cleaning in Alexandria, VA

Neighborhoods We Serve in Alexandria

We schedule Alexandria jobs with route density in mind, typically offering next-day or two-day availability across the city. Crews carry equipment sized for everything from tight Old Town row house crawl spaces to West End townhome attics.

• Old Town
• Del Ray
• Rosemont
• West End
• Seminary Hill

Service Area - Cities Near Alexandria

Our crews work daily across the inner Northern Virginia corridor. We also serve Arlington, VA, Springfield, VA, Falls Church, VA, and Fairfax, VA, with scheduling coordinated from our Washington, DC office to keep response times consistent across the metro area.

FAQs About Air Duct Cleaning in Alexandria