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.
Fast, Reliable HVAC Cleaning Across Dunwoody
HVAC cleaning in Dunwoody typically runs $450 – $900 per system for a full clean that includes the air handler, evaporator coil, blower, and ductwork. Most Dunwoody homes have two systems, and we price each one as a flat rate before any work starts. We know Dunwoody’s housing stock, we know how the 1970s – 1990s ductwork behaves, and we answer the phone when you call (737) 727-2314.
Dunwoody homeowners call us because their systems are older, their ducts are original, and they want a straight answer on what cleaning actually costs and whether they even need it. Our crews work throughout Dunwoody, from the Wynterhall subdivision near Dunwoody Elementary to the neighborhoods off Mount Vernon Road and Chamblee Dunwoody Road. We’re part of the Relay Home Co. family, founded 2005, and we operate under The Relay Standard: a live arrival window you can track, before-and-after photos of your own ducts, and a written price handed to you before a single register is touched.
This page is our HVAC Cleaning guide written specifically for Dunwoody. If you want the deeper local detail on serving this area, see HVAC Cleaning in Dunwoody.
Why Cardinal Air Duct Cleaning Is Dunwoody’s Preferred HVAC Cleaning Company
Dunwoody homeowners have called us for years because we do one thing and we do it without the games this trade is known for. No per-vent pricing. No vague estimate that balloons once the technician is inside. No cleaning the ducts while ignoring the coil and blower where the debris actually accumulates. A written price for the whole system comes before any work begins, and it does not change at the door.
Our technicians are background-checked and uniformed, so you know the person’s name before you open the door. The equipment is professional-grade: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units when a home has significant debris or post-renovation dust. That gear matters in Dunwoody, where older rigid metal ducts often have deteriorating interior insulation that a shop-vac setup cannot handle properly.
Every job is backed by the 365-Day Done Right Promise. If the work isn’t right within 365 days, we return and correct it at no charge. That is the longest satisfaction window in the trade, and it applies to every booking without exception. Omar Haddad, who leads our team, insists on that standard because Dunwoody homeowners deserve an HVAC cleaning company that acts like it has to earn the call back.
AC Coil Cleaning in Dunwoody
AC coil cleaning in Dunwoody is the single most skipped step in HVAC maintenance, and it’s the one that most affects how your system cools a Georgia summer. The evaporator coil sits above your furnace or inside the air handler, and in Dunwoody’s humid climate it collects a film of dust, pollen, and biological growth that insulates the coil and forces the system to run longer. A coil left uncleaned for even two or three years can add 15 – 20% to your cooling bill. We clean coils in homes throughout Dunwoody, from the townhome clusters near Perimeter Center to the larger single-family homes off Tilly Mill Road.
What does coil cleaning cost in Dunwoody? A standalone evaporator coil cleaning runs $225 – $400 depending on access. When it’s part of a full HVAC cleaning, the coil is included in the per-system flat rate of $450 – $900. We’ll give you the exact figure in writing before we begin.
What the Coil Cleaning Job Involves
We shut the system down, remove the access panel, and apply a professional-grade coil cleaner that breaks down the buildup without corroding the aluminum fins. Then we flush and extract, so the runoff doesn’t pool in your drain pan or flood the air handler cabinet.
Dunwoody’s Humidity Makes This Worse
Dunwoody’s summer dew points regularly sit in the low 70s. That means your coil is wet for months at a time, and wet coils trap airborne debris faster than dry ones. Homes near wooded lots, like those off Womack Road and around Dunwoody Country Club, tend to see faster coil buildup because of the tree pollen and organic matter in the air.
AC Cleaning in Dunwoody
AC cleaning in Dunwoody goes beyond the coil. A full clean addresses the blower wheel, the air handler cabinet, the condensate drain, and the supply and return ductwork as one connected system. Most Dunwoody homes have two AC systems, one for each floor, and the upstairs unit works harder in summer. A full AC cleaning on a single system in Dunwoody runs $450 – $900, and we set that price before we start, not after we’ve opened panels and found “additional work.”
Blower and Air Handler Debris
The blower wheel is what pushes conditioned air through your ducts. In Dunwoody homes built in the 1970s – 1990s, the blower often pulls air through an old return that has collected decades of dust, lint, and carpet fibers. We remove the blower, clean each fin, and wipe down the cabinet interior so the airstream starts clean at the source.
Condensate Line and Drain Pan
Dunwoody’s humidity means your AC produces gallons of condensation every day. When the drain line clogs with sludge, water backs up into the pan and eventually into the ceiling below. We flush the line and treat the pan during every AC cleaning so you don’t find a wet ceiling in August.
Trusted Brands We Service in Dunwoody
We service and clean all major HVAC brands found in Dunwoody homes, including Trane, Carrier, Lennox, Rheem, American Standard, Goodman, and York. Because Dunwoody has so many systems from the 1990s and early 2000s, we keep common filtration products on our trucks so we don’t have to make a second trip. That includes Aprilaire media filters, Guardsman treatments for coil protection, and Honeywell filtration upgrades. If your system needs a part we don’t have on the truck, we get it quickly and schedule the return before we leave.
Common HVAC Cleaning Problems We See in Dunwoody Homes
- Deteriorating interior duct insulation. The original rigid metal ducts in many Dunwoody homes have fiberglass insulation lining the interior. Over 30 – 40 years, that lining breaks down and sheds fibers into the airstream. We camera-inspect before we agitate so we know if this is present and can plan the cleaning accordingly.
- Collapsed flex runs. Homes that had partial retrofit work done in the 1990s often used flexible duct in short runs between the trunk and registers. In Dunwoody attics, which reach 130°F in summer, that flex can collapse at the elbows. Our crew saw exactly this in a Wynterhall subdivision home, where two 1980s flex runs had folded at the elbows and the upstairs blower was pulling visible lint through the return.
- Return duct pulling from the attic. Older returns in Dunwoody sometimes draw air from the attic space through gaps in the duct joints. That means hot, dusty attic air enters the system before it ever reaches the coil. We check return integrity during every cleaning and flag it clearly if we find it.
- Biological growth on the coil. Dunwoody’s long, humid cooling season feeds microbial growth on evaporator coils. Homeowners often mistake this for a system that “just runs a lot.” The real fix is coil cleaning and, where needed, a Guardsman coil treatment to slow regrowth.
Pricing for HVAC Cleaning in Dunwoody, GA
A full HVAC cleaning for one system in Dunwoody runs $450 – $900. A two-system home, which describes most Dunwoody houses, typically falls between $800 and $1,700 total. Standalone jobs are priced separately: evaporator coil cleaning runs $225 – $400, blower cleaning runs $150 – $250, and a condenser cleaning runs $100 – $200. We never charge per vent. You get one flat price per system, in writing, before any work starts. Estimates are free, and you can reach us at (737) 727-2314.
We Also Serve Cities Near Dunwoody
While this page focuses on Dunwoody, our crews also serve Dunwoody neighbors in Atlanta, South Fulton, Sandy Springs, and Roswell. If you’re just outside the Dunwoody line, give us a call and we’ll confirm coverage and timing for your area.
Serving Dunwoody, GA - Our Local Coverage Area
We’re based in the Dunwoody 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 Dunwoody
Every 3 to 5 years for most Dunwoody homes, and sooner if you’ve renovated, have pets that shed heavily, or live near a wooded lot with heavy pollen. Homes with the original 1970s – 1990s ductwork may need cleaning more frequently because deteriorating insulation sheds particles continuously. If your ducts were cleaned recently and there’s no visible debris, moisture, or post-renovation dust, the honest answer is to wait. Call (737) 727-2314 and we’ll tell you straight whether a cleaning is worth doing.
Look for a fine gray or white dust collecting on register grilles and furniture near vents. That’s often shed interior duct insulation, not ordinary household dust. Also check whether some rooms stay warmer than others in summer, which can indicate collapsed flex runs or loose joints. We camera-inspect the ducts before we agitate anything, so you’ll know the condition of your ductwork before we clean it.
One flat price per system, always. We set the price in writing before any work starts, and it covers the air handler, coil, blower, and the full duct run for that system. We do not charge per vent or register, and the price does not change once the technician is on site. Most Dunwoody homes pay $450 – $900 per system. Call (737) 727-2314 for an exact quote.
We seal off the system and set up negative-pressure extraction with HEPA filtration at the main trunk, so the loosened debris goes straight into the vacuum, not back into your living room. Then we run rotary agitation tools through the supply and return ducts, clean the air handler, blower, and evaporator coil, and photograph every register before and after. You get the photos as part of The Relay Standard, so you can see exactly what changed.
We schedule by appointment and work hard to get Dunwoody homeowners on the calendar quickly, but we don’t promise same-day service. HVAC cleaning is a scheduled job that takes 3 – 5 hours per system, and doing it right means not rushing it. Call (737) 727-2314 and we’ll give you the soonest available window, plus a live trackable arrival time on the day of your visit.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving Dunwoody through the Relay Home Co. family.




Before
After
Before
After
Before
After