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.
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AfterFast, Reliable Air Duct Cleaning Across Greenwich
Air duct cleaning in Greenwich, CT typically runs $450 – $850 for a full residential system, with most jobs completed in a single visit. Our crews dispatch from our Hartford office and serve Greenwich directly, from the backcountry estates off North Street to the condos along Putnam Avenue downtown. We know the difference between a 1920s stone house with unlined ducts in damp plaster chases and a 2015 flex-duct system in a Byram teardown, and we adjust our methods accordingly. Call (361) 326-5060 for a written estimate before any work starts.
Why Hollis Air Duct Cleaning Is Greenwich’s Preferred Air Duct Cleaning Company
We’ve been part of the Garrison Partners family since 2004, and our Air Duct Cleaning team has built a reputation in Fairfield County by showing up when we said we would and pricing in writing before we touch anything. Greenwich homeowners aren’t looking for the lowest coupon; they’re looking for the crew that won’t turn a $299 special into an $1,800 invoice once the van is in the driveway. Our 365-Day Done Right Promise covers every job in writing: if the work fails within a year, we come back and make it right at no charge, including a free second visit.
Our technicians are background-checked and uniformed, and our phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops. No callback queues. We serve Greenwich with the same equipment commercial crews use: Rotobrush rotary brush systems, Nikro negative-air machines, and filtration from Aprilaire, Abatement Technologies, and Guardsman. The Garrison Standard means we arrive inside the quoted window, price in writing, complete the job by the book, and leave the site clean.
HVAC Duct Cleaning in Greenwich
HVAC Duct Cleaning in Greenwich means different work depending on whether we’re in a backcountry estate or a downtown condo. The job involves source removal of dust, debris, and microbial growth from your entire forced-air system: supply ducts, return ducts, blower compartment, and coils. In Greenwich’s coastal climate, we see heavy seasonal condensation in unconditioned attic runs, plus pollen and leaf debris from surrounding woodlands pulled into return vents. A typical residential HVAC duct cleaning in Greenwich runs $550 – $850 for a full system, with older estate properties sometimes requiring additional access work.
Supply and Return Duct Cleaning
Supply ducts push conditioned air into your rooms; return ducts pull it back. In Greenwich’s older homes, these runs often travel through unheated attics and stone-wall chases where condensation breeds mold. We use camera inspection first, then match the agitation method to the duct material: gentle rotary brushes for fragile galvanized steel, more aggressive contact cleaning for modern flex duct.
Full System Cleaning with Coil and Blower Service
The blower motor and evaporator coil collect the debris your ducts deliver. In backcountry Greenwich, we’ve found blower motors pulling fine dust from unpaved roads and pollen from dense woodland buffers. Cleaning the ducts without addressing the blower and coil recirculates the same contamination within days.
Vent Cleaning in Greenwich
Vent Cleaning in Greenwich addresses the visible registers and grilles plus the short duct runs behind them where dust first accumulates. This is often the entry point homeowners notice: dark staining on ceiling diffusers, reduced airflow from floor registers, or musty odors when the system cycles. In Greenwich’s newer condos with zoned systems, individual vent runs can clog with construction debris or pet dander in ways that affect only one room. A standard vent cleaning service in Greenwich runs $180 – $340 for register cleaning and short-run agitation, or $450 – $650 when bundled with full HVAC duct cleaning.
Register and Grille Deep Cleaning
We remove each register, clean the grille face and blade assembly, and agitate the first 3 – 5 feet of duct behind it. In Greenwich’s historic homes, original cast-iron or brass registers require careful handling to avoid finish damage. We document condition before we start.
Video Inspection of Vent Runs
Our camera inspection shows you what we see before we quote. In a 2019 Riverside condo, we found a vent run completely blocked by a leftover construction rag. In a 1930s Backcountry estate, we found rust scale from a failed galvanized section. Different problems, different fixes, both caught on camera first.
Trusted Brands We Service in Greenwich
We stock filters, replacement components, and sealing products from Aprilaire, Abatement Technologies, and Guardsman, with fast turnaround for Greenwich homeowners who need specific parts rather than generic substitutes. Our equipment roster includes Rotobrush rotary brush systems for contact cleaning and Nikro negative-air machines for source removal with HEPA containment. When we recommend a MERV 13 upgrade or Duct Sealing in Greenwich with mastic, we’re specifying products we’ve installed and warrantied under our 365-Day Done Right Promise.
Common Air Duct Cleaning Problems We See in Greenwich Homes
- Black mold in unheated attic runs. In backcountry Greenwich’s stone-and-shingle estates, ducts pass through spaces that stay damp all winter. We regularly find mold colonies that standard vacuuming misses without proper agitation and negative pressure containment.
- Rusted galvanized duct sections. Original metal ductwork in pre-1950s Greenwich homes corrodes from decades of condensation. Aggressive cleaning without inspection can dislodge rust and create leaks in plaster-wall chases.
- Construction debris in newer flex-duct systems. Downtown and Byram condos built in the 2000s – 2020s often have flex duct clogged with drywall dust, wood chips, or leftover insulation from rough-in. These systems need gentler rotary brush cleaning to avoid tearing the flex liner.
- Pollen and road-dust loading in rural properties. Homes on unpaved roads near woodland buffers see heavy seasonal debris. We recommend more frequent filter changes and shorter cleaning intervals for these properties, typically every 2 – 3 years versus the standard 3 – 5.
Pricing for Air Duct Cleaning in Greenwich, CT
Honest pricing means no teaser coupons that balloon at the door. Here’s what air duct cleaning actually costs in Greenwich:
| Service | Typical Range |
|---|---|
| Vent cleaning (registers + short runs) | $180 – $340 |
| Residential HVAC duct cleaning (full system) | $450 – $850 |
| Commercial duct cleaning per system | $800 – $1,400 |
| Video inspection (standalone or bundled) | $150 – $250 |
| Duct sealing with mastic (per system) | $400 – $700 |
What moves the price: system size, duct accessibility (crawlspace vs. basement), contamination level, and whether we need additional HEPA containment for mold remediation. We inspect first, write the price down, and do not move it once work begins. Estimates are free. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Greenwich
Our crews work throughout lower Fairfield County, including Greenwich neighbors: Cos Cob, Riverside, Old Greenwich, and Stamford. Each community shares the coastal climate but brings its own housing stock and duct configurations. We adjust our approach accordingly.
Serving Greenwich, CT - Our Local Coverage Area
We’re based in the Greenwich 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 in Greenwich
Every 2 – 3 years for backcountry properties with wood heat and unpaved road access, versus 3 – 5 years for newer downtown condos. Wood heat produces fine ash that circulates through ductwork, and unpaved roads add mineral dust that loads filters faster. Call (361) 326-5060 and we’ll assess your specific conditions.
Yes, our source-removal methods follow NADCA guidelines: negative pressure containment, mechanical agitation, and HEPA filtration on all exhaust. We document compliance with before-and-after photos of your own ducts, not stock images.
Yes, but it requires different methods than modern flex duct. In 1920s stone-and-shingle estates, we use gentler rotary brush contact and camera-guided inspection to avoid dislodging rust or debris in unlined galvanized runs hidden in plaster walls. We assess duct condition before quoting and will recommend access repair if a section is too deteriorated to clean safely.
Construction debris, pet dander, and inadequate original filtration load ductwork faster than age alone. We’ve found flex duct in 2015-built condos clogged with drywall dust and wood chips from rough-in. Newer tight construction also traps humidity, accelerating microbial growth in ceiling runs.
Musty odors when the system cycles, visible black staining on registers, or persistent respiratory irritation that improves when you leave the house. In Greenwich’s coastal climate, mold thrives in unconditioned attic ducts and damp stone-wall chases. We confirm with camera inspection and treat with source removal plus EPA-registered sanitizer, not masking agents. Call (361) 326-5060 if you suspect mold.
Schedule Your Air Duct Cleaning in Greenwich
We’re Hollis Air Duct Cleaning, part of the Garrison Partners family since 2004. Every job gets a written price before work starts and is covered by our 365-Day Done Right Promise. Our technicians are background-checked and uniformed, our phones are answered by a live person 24/7, and we serve Greenwich from our Hartford office with the same discipline we bring to every Fairfield County home. Call (361) 326-5060 for a free estimate.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Greenwich and lower Fairfield County.