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

Fast, Reliable Air Duct Cleaning Across Washington

Air duct cleaning in Washington, DC typically runs between $450 and $900 for a full system on a standard rowhouse, with larger homes and converted buildings falling in the $800 to $1,400 range. The job takes 3 to 6 hours and includes a camera inspection before and after so you can see the difference. If you live in a pre-war rowhouse in Capitol Hill, a converted condo in Adams Morgan, or a mid-century home in Chevy Chase, your ductwork has likely never been properly cleaned, and we’ll show you exactly what’s inside before we touch it.

Call (737) 727-2314

We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005. Our crews work throughout Washington every week and we know the housing stock here better than any out-of-town franchisor ever could. Call (737) 727-2314 and a live person answers, not a phone tree.

Why Cardinal Air Duct Cleaning Is Washington’s Preferred Air Duct Cleaning Company

Washington homeowners don’t have time for vague pricing or four-hour arrival windows. Omar Haddad leads our Washington team with a simple standard: a written price before any work starts, a live trackable arrival window, and before-and-after photos from your own ducts. That’s The Relay Standard, and it applies to every booking without exception.

Our technicians are background-checked, uniformed, and show up with professional-grade equipment: Rotobrush rotary brush systems, Nikro HEPA vacuums, and Abatement Technologies containment units. You’ll know your tech’s name before they knock. And every job is covered by the 365-Day Done Right Promise. If the work isn’t right within a full year, we return and correct it at no charge. That’s the longest satisfaction window in the trade, and it applies to every job we do in Washington.

Vent Cleaning in Washington

Air duct and Dryer Vent Cleaning in Washington are the most common services we perform, and in this city it’s rarely as simple as running a brush through a few registers. Many DC homes, especially pre-1940s rowhouses and converted apartment buildings, have supply and return vents connected to duct runs that snake through party walls, under slab floors, and around structural beams. Debris collects in these hidden chases and a surface-level vent wipe does nothing for it. We clean the entire duct run connected to each vent, not just the visible metal you can see from the living room.

For a typical Washington rowhouse with 8 to 12 vents, vent cleaning as part of a full system cleaning runs $450 to $750. Rowhouse layouts with multiple floors and long vertical chases may land closer to $900 because the runs are longer and access is tighter. We give you that number in writing before we start, and it doesn’t change at the door.

Supply and Return Vent Runs

Supply vents push conditioned air into your rooms. Return vents pull air back to the handler. In Washington’s older homes, return ducts are often undersized and buried inside walls, which makes them the most likely place for a decade of dust, pet hair, and renovation debris to accumulate. We clean both, and we inspect both with a camera before and after.

Full System Cleaning for Multi-Floor Units

Converted condos and multi-floor rowhouses in neighborhoods like Columbia Heights and Georgetown have duct runs that travel vertically through multiple units. These systems need negative-pressure extraction, which means the loosened debris is pulled directly into a HEPA-filtered vacuum, not blown into your living space. We use Nikro HEPA vacuums on every job for this exact reason.

Air Duct Repair in Washington

Air duct repair in Washington usually means one of three things: disconnected or leaking duct joints in older metal systems, crushed or collapsed flex duct in retrofit jobs, or gaps in return chases hidden behind plaster walls. In a city where many homes date to the 1920s and 1930s, duct leaks are common, and they quietly cost you money every month as conditioned air escapes into wall cavities and attics.

Repair costs in Washington run $250 to $600 for typical joint sealing and minor flex duct replacement. More involved repairs, like rebuilding a section of return chase or replacing crushed duct in a finished ceiling, can run $800 to $1,500. We hand you a written price before any repair begins, and every repair carries a written guarantee. If the repair fails within 365 days, we come back and fix it free.

Sealing Leaks in Older Metal Ductwork

Decades of settling and renovation work loosen the joints in metal duct systems. We use mastic sealant and aluminum tape rated for HVAC use to close these gaps, then verify the fix with a pressure reading. A sealed system means your handler isn’t pulling dust from inside walls and your conditioned air stays in the rooms where it belongs.

Replacing Crushed or Disconnected Flex Runs

Many DC homes had flex duct retrofitted during renovations, and a lot of it was installed hastily. Crushed runs starve rooms of airflow. Disconnected runs dump conditioned air into attics or crawl spaces. We replace damaged flex with properly sized and supported runs, then photograph the work so you can see what was done.

Trusted Brands We Service in Washington

Washington homes run on a wide range of equipment. We service and clean systems using Honeywell filters, Aprilaire media cabinets, and Guardsman UV purification units alongside standard residential setups. Because we’re local to Washington, we keep common parts and filter sizes stocked for the systems we see most often in DC rowhouses and condos, which means less waiting on mail-order parts when a repair is needed. We also install and replace Guardsman and Aprilaire filtration products when a cleaning reveals the existing filter setup isn’t doing the job.

Common Air Duct Cleaning Problems We See in Washington Homes

• Renovation dust in hidden return chases. Washington rowhouses have been renovated again and again over the decades, and drywall dust, plaster chips, and construction debris end up inside return ducts hidden in party walls. A camera inspection is the only way to confirm it’s there.
• Undersized returns causing dust pull-in. Original gravity systems and early forced-air conversions often have return ducts that are too small for the airflow they carry. That negative pressure pulls dust through every gap in the chase and into your air.
• Flex duct crushed in attic conversions. Many DC homes gained finished attics or basement units during renovations, and the flex duct installed in those tight spaces is frequently kinked or crushed, choking off airflow to part of the house.
• Pest debris in abandoned gravity chases. Older Washington homes sometimes have abandoned gravity ducts that were sealed off incompletely. Rodents and insects find their way in, and when the system runs, that debris gets stirred into the air you breathe.

Pricing for Air Duct Cleaning in Washington, DC

We Also Serve Cities Near Washington

Our crews cover Washington and the surrounding area regularly. If you’re in Arlington, Alexandria, Bethesda, Silver Spring, or anywhere else inside or just outside the Beltway, we can schedule you the same week. Our full Air Duct Cleaning service area details what we do in each location, and Washington remains our busiest market by far.

FAQs About Air Duct Cleaning in Washington