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.
Air Duct Cleaning Company in Old Greenwich, CT
Air duct cleaning in Old Greenwich typically runs $450 – $850 for a whole-home system, with most jobs completed in a single visit. The work here is shaped by pre-1950 housing stock, coastal humidity from Long Island Sound, and the frequent presence of asbestos-wrapped ducts that require careful handling under Connecticut DPH rules. If you’re ready to schedule, call Hollis Air Duct Cleaning at (361) 326-5060 for a written estimate.
Why Old Greenwich Homes Are Different
Old Greenwich sits on Long Island Sound, and that waterfront location changes what we find inside the ductwork. The humid summers and cold, damp winters create conditions where mold and mildew colonize unlined metal ducts, while salt air and heavy tree pollen add layers of particulate that inland crews rarely encounter.
Most homes here were built before 1950, Colonials and capes with original plaster walls and hardwood floors. The HVAC systems were retrofitted decades later, often using unlined metal ducts that trap debris and radiate noise. Renovations and additions have left many homes with a patchwork of old and new ductwork, each section requiring a different approach. We regularly encounter asbestos-wrapped ducts in basements and crawl spaces, which means testing and sealing before any cleaning begins, per Connecticut Department of Public Health regulations. That step adds time and cost, but skipping it isn’t an option for a crew working by The Garrison Standard.
Our Main Old Greenwich Services
Old Greenwich homeowners call us for three jobs, each with its own page and details.
Air Duct Cleaning in Old Greenwich
We clean the full supply and return system using a Rotobrush rotary brush system or Nikro negative-air machine, depending on duct age and condition. In Old Greenwich, we often start with asbestos testing in pre-1950 homes, then seal and clean without disturbing fragile plaster or original materials. The goal is removing construction dust, pollen, and mold buildup that coastal humidity has baked into the system. Air Duct Cleaning in Old Greenwich covers the full process and what to expect.

Dryer Vent Cleaning in Old Greenwich
Dryer vent cleaning here means dealing with long runs through multiple stories of older homes, sometimes with original venting that doesn’t meet current code. We clear lint buildup with rotary tools and inspect the full line for proper airflow. In waterfront homes, we also check for corrosion from salt air that can damage vent caps and dampers. Dryer Vent Cleaning in Old Greenwich has the specifics.

Duct Sealing in Old Greenwich
Duct sealing with mastic and metal-backed tape closes the leaks that waste heated and cooled air in unlined metal systems. In Old Greenwich, we often seal joints between original ducts and newer additions, where the connections were never properly finished. The work is especially valuable in homes with patchwork ductwork from multiple renovations. Duct Sealing in Old Greenwich explains the process and pricing.

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 Old Greenwich
We stock parts and filters from Honeywell, Aprilaire, Guardsman, and Abatement Technologies, with most replacements available same-day. If we don’t have it on the van, we pull from our Hartford office and return within 24 hours. our brands
Pricing for Air Duct Cleaning Company in Old Greenwich, CT
| Service | Typical range in Old Greenwich |
|---|---|
| Whole-home air duct cleaning (single system) | $450 – $850 |
| Whole-home air duct cleaning (two systems) | $750 – $1,400 |
| Dryer vent cleaning (standard run) | $120 – $220 |
| Dryer vent cleaning (long run or rooftop vent) | $200 – $350 |
| Duct sealing (whole system) | $1,200 – $2,500 |
| Asbestos testing and containment (required pre-clean) | $150 – $400 |
| HVAC inspection with photo documentation | $75 – $150 |
| Sanitizing treatment (mold/mildew) | $150 – $300 |
Prices in Old Greenwich run toward the higher end when asbestos wrapping requires testing and containment, or when homes have multiple HVAC zones from additions. We write the full price before any work starts, and that number does not move at the door.
Neighborhoods We Serve in Old Greenwich
We work across Old Greenwich and the surrounding shoreline, with crews dispatched from our Hartford office and routed for morning or afternoon arrival windows.
- Tod’s Point
- Binnecke Street area
- Sound Beach Avenue corridor
- Old Greenwich Village center
- Edgewater Drive waterfront
Most Old Greenwich appointments are scheduled within three to five business days, with asbestos testing adding one day if needed.
Service Area – Cities Near Old Greenwich
We serve homeowners throughout the Connecticut shoreline and into neighboring markets. Crews regularly work in Greenwich, CT, Stamford, CT, and Cos Cob, CT, with scheduling coordinated from our Hartford office. We also handle jobs across the line in Riverside, MD for seasonal residents with multiple properties.
Serving Old Greenwich, CT - Our Local Coverage Area
We’re based in the Old 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 Company in Old Greenwich
No permit is required for standard duct cleaning, but asbestos-wrapped ducts must be tested and handled per Connecticut DPH regulations before work begins. We coordinate testing and include containment in our written price. Call (361) 326-5060 to schedule.
Most appointments are available within three to five business days. Asbestos testing adds one business day if your home was built before 1950. We arrive inside the quoted window and confirm the day before. Call (361) 326-5060 to check current availability.
Yes, with building management approval and access to common mechanical areas. We coordinate with supers and property managers, and we provide certificates of insurance when required. 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 Old Greenwich 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.




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