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 HVAC Cleaning Across Greenwich
HVAC cleaning in Greenwich typically costs between $450 and $900 for a whole-home system cleaning, and the job is completed in a single scheduled visit, not a rushed hour. If you’re noticing musty air when the AC cycles on, more dust settling on furniture in Old Greenwich than in years past, or uneven airflow between the first floor and the second, the coil and ductwork are usually the source. Our crews know Greenwich’s housing stock block by block, from 1920s Riverside colonials to the newer variable-speed systems in Glenville, and we scope every job to the system in front of us, not a town-wide average. Call (737) 727-2314 and you’ll talk to a live person who can walk you through the process, what it costs, and when we can be there.
We’re Cardinal Air Duct Cleaning, part of the Relay Home Co. family founded in 2005, and we hold every Greenwich booking to The Relay Visibility Guarantee: a written price before any work starts, a trackable arrival window, before-and-after photos of your own system, and a digital invoice you can pay from your phone. One flat price per system, agreed before a single duct is touched.
Why Cardinal Air Duct Cleaning Is Greenwich’s Preferred HVAC Cleaning Company
Greenwich homeowners tend to ask sharper questions than most, and we’re ready for them. What’s actually in the ducts? How do I know the coil got cleaned and not just the return? Why does one quote come in at $299 and another at $900? Those are the right questions, and the answers are why people in Cos Cob, Riverside, and central Greenwich call us back for dryer vent work and repeat system cleanings.
We don’t quote by the vent. A Greenwich house with one air handler and long trunk runs can look modest on paper while holding more debris than a larger home with two short systems. We quote by the system, we inspect before we quote, and the price you’re handed is the price on the invoice. Our technicians are background-checked and arrive in uniform, running professional-grade equipment: Rotobrush rotary agitation systems, Nikro HEPA vacuums, and Abatement Technologies containment units. You know the tech’s name before they open the door.
Every job carries the 365-Day Done Right Promise. If the work isn’t right within a full year, we return and correct it at no charge. No fine print, no exclusions. That’s every booking, every time.
AC Coil Cleaning in Greenwich
AC coil cleaning in Greenwich is the service most likely to fix a persistent “dirty sock” smell or weak cooling from an otherwise healthy condenser. The evaporator coil sits inside the air handler and is the coldest surface in the system, so it condenses moisture constantly. In Greenwich’s older homes in Riverside and central Greenwich, that moisture traps dust, pollen, and whatever else slips past the filter, and the resulting mat is invisible to any duct vacuuming. Your ducts can be spotless and the air still smells like a damp basement because the coil is the problem.
We clean the coil with commercial coil cleaners and fin-safe brushes, then treat it with an antimicrobial coil treatment to slow regrowth. A typical AC coil cleaning in Greenwich runs $200 to $400 depending on access and coil condition. If the condenser coil outside is also clogged with pollen and cottonwood from Greenwich’s tree canopy, that’s a separate cleaning we can do the same visit.
When the coil is the real problem
You can’t see the evaporator coil without opening the air handler, which is why so many Greenwich homeowners find themselves chasing a smell that duct cleaning alone doesn’t fix. Slimy film on the coil, reduced airflow, and a system that runs longer to hit the same temperature are all signs. We inspect with a camera before recommending anything, and we’ll show you the photos.
Coil inspection before anything else
In newer Glenville builds with sealed, MERV-rated systems and clean returns, we often find the coil doesn’t need a full cleaning at all. A camera check and a quick coil rinse is enough. You shouldn’t pay for work your system doesn’t need, and we won’t sell it to you.
AC Cleaning in Greenwich
AC cleaning in Greenwich means the full service: supply and return ducts, the blower wheel, the evaporator coil, and the air handler interior. It’s the right call when airflow is weak in certain rooms, when dust reappears on furniture within days of cleaning, or when the system makes more noise than it did last summer. A split-level near Cos Cob with a shared air handler serving both floors responds especially well to full AC cleaning, because the long trunk runs hold dust that short, frequent cycles never push to the filter.
We run a Rotobrush rotary brush through the supply and return lines, then extract under negative pressure with a Nikro HEPA-filtered vacuum, so loosened debris goes straight into the vacuum and never back into your living room. The blower wheel is pulled and cleaned by hand when accessible. A complete AC cleaning for a typical Greenwich home runs $450 to $750 depending on the number of zones and the condition of the system.
Signs your system needs it
If you can write your name in the dust on a return grille a week after wiping it, the ducts are releasing what they’ve accumulated. If one bedroom is always five degrees warmer than the rest of the house, airflow is restricted somewhere between the trunk and the register.
What you’ll see when we’re done
We photograph the inside of your ducts before and after, and we send you the images. You’ll see the difference with your own eyes, which is how it should be.
Trusted Brands We Service in Greenwich
We service and clean every major system you’ll find in Greenwich homes: Carrier, Trane, Rheem, Lennox, Bryant, Goodman, and the high-end variable-speed units in newer Glenville construction. We also stock and install Aprilaire filtration, Guardsman UV systems, and Honeywell media filters for homeowners who want better air quality after the cleaning is done. If your system takes a less common filter size, we can usually bring it on the truck. If not, we can have it in hand before your next scheduled visit. For HVAC Cleaning of any brand or configuration, our technicians service the full range found across Greenwich’s housing stock.
Common HVAC Cleaning Problems We See in Greenwich Homes
- Quoting by the vent instead of the system. A five-bedroom colonial in Riverside might have fewer vents than a three-bedroom split-level in Cos Cob, but far more linear feet of duct. Vent-count pricing gets this wrong every time.
- Skipping the coil. The evaporator coil in a 1920s colonial with an original galvanized trunk collects dust no duct vacuum can touch. If the tech doesn’t clean it, the smell lingers and someone has to come back. We clean it as part of the job.
- Assuming new construction doesn’t need inspection. We’ve seen sealed, MERV-rated systems in Glenville builds with clean returns that genuinely only need a camera check and coil rinse. We’ll tell you when that’s the case and charge accordingly.
- Filter mismatching. A system designed for a MERV 8 filter run with a cheap fiberglass filter lets dust reach the coil. We’ll recommend the right filter for your system and keep it simple.
Pricing for HVAC Cleaning in Greenwich, CT
Here’s what you can expect to pay for HVAC cleaning in Greenwich, and exactly what drives the number. A camera inspection with a written quote is free. AC coil cleaning alone runs $200 to $400. Full AC cleaning with duct agitation, HEPA extraction, blower wheel cleaning, and coil cleaning for a typical Greenwich home runs $450 to $900. Larger homes with multiple air handlers, long trunk runs, or heavy debris go higher, and we’ll explain why before you commit. Every quote is one flat price per system, agreed before any work starts. Call (737) 727-2314 and we’ll schedule a time that works for you.
We Also Serve Cities Near Greenwich
Our HVAC cleaning crews serve Greenwich and the surrounding communities: Cos Cob, Riverside, Old Greenwich, and Stamford. If you’re located in any of these areas, the same written pricing, background-checked techs, and 365-Day Done Right Promise apply. If you are searching for HVAC Cleaning in Greenwich or nearby, we can likely schedule you the same week.
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 HVAC Cleaning in Greenwich
No. We quote one flat price per system. A Greenwich house with one air handler and long trunk runs can look small on paper while holding more debris than a bigger home with two short systems. Per-vent pricing is how disreputable cleaners bait you with a low per-vent price and then inflate the count. You’ll know the total before we start, and it will not change at the door. Call (737) 727-2314 for a free written quote.
Every four to six years for most Greenwich homes, and more often if you have pets, recent renovations, or a system without a proper media filter. Homes in Riverside and central Greenwich with older galvanized trunks tend to accumulate debris faster than newer Glenville builds with sealed systems. If your return is clean and your coil is clear on inspection, we’ll tell you to wait. If a tech is pushing a cleaning on a system you just had done, get a second opinion. We’re happy to be that second opinion.
Yes, and you should expect them. Every Cardinal job includes before-and-after photo documentation of the inside of your ducts and the coil. You’ll see the before-and-after images of your own system, not a stock photo. That’s part of The Relay Visibility Guarantee, and it’s the best proof the work was actually done. If a cleaner won’t show you photos of your own ducts, ask why.
We open the air handler, inspect the coil with a camera, then clean it with commercial coil cleaner and fin-safe brushes. After cleaning, we apply an antimicrobial coil treatment to slow future buildup. The process takes about an hour, and on a Greenwich system with a dirty coil, it’s usually the difference between a smell that lingers for years and one that clears on the first cooling cycle. Call (737) 727-2314 for a quote on coil cleaning for your specific system.
We schedule every job in advance so we can send the right crew and the right tools for your system. That’s how we protect the written price and the 365-Day Done Right Promise. When you call, we’ll give you our next available window, and in most cases, that’s within a few days, not weeks. For homeowners who need us sooner, we’ll do everything we can to fit you in, but we won’t rush the job to meet a same-day promise. Quality work takes the time it takes, and that’s the standard we hold.
Call Cardinal Air Duct Cleaning for HVAC Cleaning in Greenwich
If your system smells stale, your rooms are uneven in temperature, or you want a straight answer on whether your ducts actually need cleaning, call us at (737) 727-2314. You’ll get a live person, a written price before any work starts, and a clean system photographed before and after. We serve all of Greenwich including Cos Cob, Riverside, Old Greenwich, and the surrounding areas. The estimate is free, the price is flat, and the work is guaranteed for a full year.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Greenwich with professional HVAC and air duct cleaning.