Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Before
After
Before
After
Before
AfterAir Duct Cleaning Company in Washington, DC
Air duct cleaning in Washington, DC typically costs $350 – $650 for a whole-home system and requires technicians who understand historic rowhouse construction, not standard suburban flex duct. We’re Hollis Air Duct Cleaning, and we’ve built our Washington operation around the realities of this market: original galvanized steel ductwork, tight chases between party walls, and the humid subtropical climate that drives mold and pollen buildup from May through September. Call us at (361) 326-5060 for a written estimate before any work begins.
Why Washington Homes Are Different
Washington’s housing stock is among the oldest in the nation. Thousands of 19th-century rowhouses stand in Capitol Hill, Georgetown, and Shaw, alongside mid-century apartments and brutalist federal buildings. The ductwork in these homes is often original galvanized steel or asbestos-wrapped, and retrofits are complicated by masonry walls and historic district rules that limit what can be altered.
Our humid subtropical climate means hot, sticky summers with average July highs of 89°F and heavy AC use from May to September. That humidity, combined with pollen from the region’s cherry, oak, and elm trees, causes rapid buildup of mold, mildew, and allergens inside ductwork. During cherry blossom season, pollen infiltration spikes so dramatically that duct cleaning calls surge 30% in April.
In historic rowhouses, ductwork is frequently wedged between party walls and original plaster with no access panels. Technicians often must cut through finished walls or use specialized cameras to navigate duct runs that were never designed for modern HVAC. Many of our clients are federal employees or diplomats who expect discreet, punctual service with minimal disruption to their schedules.
Our Main Washington Services
We offer three core services for Washington homeowners, each handled with The Garrison Standard: written pricing, background-checked uniformed technicians, and our 365-Day Done Right Promise.
Air Duct Cleaning in Washington
Our Air Duct Cleaning in Washington uses Rotobrush rotary brush systems and Nikro negative-air machines to remove buildup from original galvanized steel and retrofitted ductwork. We navigate tight chases, shared walls, and historic preservation restrictions that suburban crews rarely encounter. Every job starts with a written price and ends with before-and-after photos of your own ducts.
Dryer Vent Cleaning in Washington
Our Dryer Vent Cleaning in Washington addresses the lint accumulation that poses fire risks in rowhouses with long vent runs through multiple floors. We clear blockages, inspect for proper airflow, and verify vent termination meets code. In shared-wall buildings, we coordinate access respectfully with neighbors when needed.
Duct Sealing in Washington
Our Duct Sealing in Washington stops conditioned air from leaking into unconditioned spaces between rowhouse party walls. We apply duct sealing mastic and mechanical fasteners to joints in original metal ductwork, improving efficiency without altering historic fabric. This is often the most cost-effective upgrade for homes where full replacement isn’t feasible.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Washington
We stock parts and filtration products from Honeywell, Aprilaire, Abatement Technologies, and Guardsman, with Rotobrush and Nikro equipment maintained locally for fast turnaround. Most replacement components are available within 24 hours. See our brands for the full roster.
Pricing for Air Duct Cleaning Company in Washington, DC
| Service | Typical range in Washington |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard reach) | $120 – $200 |
| Dryer vent cleaning (long run / multi-floor) | $180 – $280 |
| Duct sealing (partial system) | $400 – $700 |
| Duct sealing (whole-home) | $800 – $1,400 |
| HVAC inspection with camera scope | $150 – $250 |
| Sanitizing / antimicrobial treatment | $75 – $150 |
| Asbestos-wrapped duct assessment | $200 – $350 |
| Access panel installation (historic homes) | $100 – $250 per panel |
Prices in Washington run higher than national averages due to historic construction challenges, limited access, and the need for specialized equipment. We give one flat price per system, agreed in writing before any work starts. No per-vent pricing, no surprises at the door.
Neighborhoods We Serve in Washington
Our crews work across the District, from the oldest rowhouses to newer developments. Scheduling and dispatch are coordinated from our Washington, DC office, with most appointments available within one week.
- Capitol Hill
- Georgetown
- Shaw
- Dupont Circle
- Adams Morgan
Service Area – Cities Near Washington
We serve Washington, DC and surrounding communities throughout the metro area. Our technicians are dispatched locally from the District, not routed from distant hubs.
Serving Washington, DC - Our Local Coverage Area
We’re based in the Washington area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning Company in Washington
No permit is required for interior duct cleaning, but access panel cuts in historic districts may need approval from the Historic Preservation Review Board. We assess this during your free estimate and coordinate documentation when necessary. Call (361) 326-5060 to schedule.
Most Washington appointments are available within 5 – 7 business days, with flexibility for federal employees who need weekend or early-morning slots. We confirm your window in writing and arrive inside it. Call (361) 326-5060 to check current availability.
Yes. We regularly service rowhouses with party walls and coordinate with building management or HOA contacts when exterior access is needed. Our technicians carry identification and background-check verification for secure buildings and diplomatic residences. Call (361) 326-5060 to discuss your building’s requirements.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Washington Customers Say
"No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O.