Whole-home duct cleaning
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Sanitizing & deodorizingWhole-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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AfterHow Much Does Air Quality & Sanitizing Cost in Sandy Springs?
Air quality and sanitizing services in Sandy Springs typically run between $250 and $1,200 depending on home size, treatment method, and the scope of work. A standard whole-home air duct sanitizing with antimicrobial fogging on a 2,000-square-foot house usually lands in the $350 to $700 range. Most homes in Sandy Springs can be treated the same day, and at Hollis Air Duct Sandy Springs, the price is written down before any work starts.
That written-price discipline matters here. Sandy Springs has a mix of 1970s ranches, 1990s suburbans, and newer builds east of GA-400, and each one presents a different duct layout and contamination level. We price the job based on what we see, quote it in writing, and then do exactly that work. The number on the estimate is the number on the invoice, period. If you want a straight answer for your specific house, call (229) 489-7780 and we’ll walk through it.
Key Takeaways
- Whole-home air duct sanitizing in Sandy Springs: $250 to $700 for most single-family homes
- UV light installation (whole-home, installed): $600 to $1,800 depending on unit and wiring access
- Dryer vent sanitizing add-on: $75 to $150 when bundled with duct cleaning
- Crawl space or attic microbial fogging: $400 to $1,200 based on square footage and access
- Hollis Air Duct Sandy Springs writes the price before work starts and backs it with a one-year guarantee
If you’re looking for the broader service overview, here’s our Air Quality & Sanitizing in Sandy Springs page. For now, let’s break down the numbers so you know exactly what you’re paying for.
Air Quality & Sanitizing Cost Breakdown (2026)
Here’s what we’re seeing across Sandy Springs in 2026. These ranges reflect actual job pricing from our service area, including neighborhoods like Riverside, Heards Ferry, Spalding Drive corridor, and the Riverwood area. Not every home needs every service. The table below gives you a realistic budget, not a teaser price.
| Service | Average Cost Range | What It Includes |
|---|---|---|
| Whole-home duct sanitizing (fogging) | $350 – $700 | Antimicrobial fog applied through supply and return ductwork after cleaning |
| UV-C light installation | $600 – $1,800 | UV lamp installed at the evaporator coil or main return; includes wiring and mounting |
| Dryer vent sanitizing | $75 – $150 | Antimicrobial treatment inside the dryer exhaust run; usually bundled with a vent cleaning |
| Crawl space fogging | $400 – $850 | Mold-inhibiting fog across the crawl space floor, joists, and subfloor |
| Attic air treatment | $350 – $900 | Fog or aerosol treatment for microbial growth in attic insulation and sheathing |
| Coil sanitizing and cleaning | $150 – $300 | Evaporator coil cleaning with antimicrobial rinse (requires access panel) |
| Whole-home HEPA air scrubber rental | $75 – $150 per day | Commercial HEPA scrubber placed in the home to pull particulates from the air |
What drives the cost up or down? The short answer is square footage and access. A 1,200-square-foot ranch on a slab in the Riverside area is faster to fog than a 4,000-square-foot two-story with multiple supply plenums, a finished attic, and three return drops. Sandy Springs homes in the Mount Vernon corridor tend to have older flex-duct runs that take longer to treat evenly, which adds labor time. But the price is still written in advance. If we quote you $525, that’s what you pay. No door bump, no surprise “mold surcharge” once the tech is inside.
One thing to understand about air quality services: the sanitizing step only makes sense on clean surfaces. If your ducts have 15 years of dust, pet hair, and construction debris in them, fogging over that layer is like spraying disinfectant on a dirty counter. That’s why most of our Sandy Springs jobs include a full duct cleaning before the sanitizing fog goes in. The bundled price usually runs $450 to $1,000 for the combination on a typical 2,000- to 2,800-square-foot home. The home page has more on our broader duct cleaning work.
What Affects Air Quality & Sanitizing Pricing in Sandy Springs
Here’s what actually moves the price in this market. These are the things we explain to every homeowner before we quote a job, because you should know the why behind the number.
- Home size and duct layout. More square footage means more square feet of duct surface to treat. A single-story 1,500-square-foot home near Heards Ferry might take 90 minutes to fog. A 3,500-square-foot two-story off Mount Paran might take half a day. That’s just math.
- Access to the system. Some Sandy Springs homes have HVAC equipment in tight attic spaces, narrow crawl entries, or utility closets that require partial disassembly to reach the coil. If we have to remove access panels, duct tape, or framing to reach the blower, it adds labor.
- Existing contamination level. If there’s visible mold on the coil or microbial growth in the return, the job is heavier. Sandy Springs summers run humid from June through September, and we regularly see coil mold in homes where the AC runs constantly but the humidity is never managed. That requires more than a light fog.
- Type of sanitizing method. Fogging is the baseline. UV-C light installation is a different price tier because it involves electrical work and a permanent fixture. HEPA air scrubber placement is a rental model. Each method has a different cost profile.
- Age of the ductwork. Older flex-duct systems in 1970s and 1980s Sandy Springs builds may have small tears, sagging runs, or degraded inner liners. Sanitizing doesn’t fix those. If we flag a tear, the repair is a separate line item, and you’ll know before we do it, not after.
- Add-on treatments. Treating the crawl space or the attic is separate from treating the ducts. Most homeowners don’t realize that until they ask. We quote each zone separately so you can decide what to include.
If you call (229) 489-7780, we’ll ask a few questions about your home’s age, square footage, and what you’re seeing or smelling. That gets us to a real price range fast, and the written estimate locks it in before we send a truck.
What Does Air Quality & Sanitizing Actually Do?
Before you spend a dollar on this, you should know what it does and what it doesn’t. Here’s the straight version, no marketing language.
Air quality sanitizing is the application of an antimicrobial treatment to surfaces inside your HVAC system: the supply ducts, return ducts, the evaporator coil, the blower housing, and occasionally the crawl space or attic. The treatment is designed to kill or inhibit microbial growth (mold, mildew, bacteria) on those surfaces. We use a fogging method that pushes the antimicrobial mist through the duct system under negative pressure, which is the same principle used in commercial HVAC sanitizing jobs. The equipment we run comes from Nikro and other commercial-grade suppliers, not the hardware store aisle.
What it does not do is scrub the air in your home forever. A UV-C light installed at the coil, for example, treats the air passing over the coil when the blower runs. It’s a continuous treatment, but it only works where the light reaches. And sanitizing is not a mold remediation service. If you have active mold growth inside the duct lining itself, the correct move is remediation, not fogging. We’ll tell you if that’s what you’re looking at, because doing the wrong treatment costs you money and doesn’t fix the problem.
That distinction matters in Sandy Springs, where we see a lot of humidity-driven coil mold. Homes along the Chattahoochee River corridor, in particular, deal with consistently higher indoor humidity, and that shows up on the evaporator coil. The coil is a condensation machine by design, and when the humidity is high, it stays wet. That wet surface is where mold grows. A coil cleaning plus antimicrobial rinse in those homes is money spent in the right place. A fog alone is not.
What The Garrison Standard Means for Pricing
Hollis Air Duct Sandy Springs is part of the Garrison Partners family, and every job runs on The Garrison Standard. That’s not a slogan. It’s a specific operating requirement: arrive inside the quoted window, put the price in writing before touching the equipment, do the job by the book, and leave the site clean. Those are the four requirements. They apply to every technician who walks into a Sandy Springs home wearing our uniform.
The Standard also includes the 365-Day Done Right Promise. Here’s how it works in plain terms: if we treat your ducts, coil, or crawl space and the microbial problem returns within one year, we come back and treat it again at no charge. That includes a free second visit. It’s in writing on every job we do. Most companies in this trade won’t put a one-year guarantee on air quality work, because they know the humidity conditions in this market make it harder than it sounds. We put it in writing because the price should mean something.
Background-checked, uniformed technicians on every job. A live person answers the phone 24 hours a day, seven days a week. That’s not a call center; it’s someone who can actually schedule a truck in Sandy Springs. When you call (229) 489-7780 at 9 p.m. on a Saturday, you’ll reach a person who can put you on the schedule. That consistency is part of how we hold written prices: the house doesn’t have wild swings in service quality depending on which tech you get.
How to Save on Air Quality & Sanitizing
Saving money on this work is less about finding a coupon and more about not paying for things you don’t need. Here’s what actually works in Sandy Springs.
- Bundle duct cleaning with sanitizing. If your ducts need cleaning anyway, the sanitizing fog adds less time when we’re already running the negative-air machine. The bundled rate is almost always cheaper than booking the two services separately, because we’re not mobilizing the truck twice.
- Treat the right thing. If the problem is a moldy evaporator coil, don’t pay for a whole-home fog. If the problem is a musty crawl space, a duct treatment won’t fix it. We’ll tell you which zone needs treatment before we quote anything, and you’ll see the logic in the written estimate.
- Handle the humidity. If your home in the Riverside or Heards Ferry areas runs humid year-round, a dehumidifier or a properly sized AC system addresses the root cause. We can’t sell you a dehumidifier, but we can recommend whether it’s worth the investment versus repeated sanitizing treatments. Our job is to tell you the truth, even if the answer is not another Hollis service.
- Inspect before you pay for anything. If you call us and ask what’s going on, we’ll inspect the system and quote the work. The estimate is free. You’ll know exactly what we found, what we recommend, and what it costs before you commit to a dollar. That’s better than a coupon, because it means you’re paying for exactly the right scope.
You can also ask about seasonal scheduling. Summer is the busiest time for AC and air quality work in Sandy Springs, and while we don’t play games with pricing based on demand, booking in spring or fall means you have more scheduling flexibility. That can matter if your schedule is tight and you need a specific window. Call (229) 489-7780 for a free estimate, and we’ll give you the straight number for your home.
Is UV-C Light Installation Worth the Cost in Sandy Springs?
This question comes up in roughly half of the air quality consultations we do, so let’s give it a direct answer.
A UV-C light installed at the evaporator coil runs $600 to $1,800 in Sandy Springs depending on the unit selected, the wiring access, and whether the blower compartment needs modification. What you’re buying is a germicidal lamp that shines on the coil and kills or inactivates mold and bacteria on the coil surface and in the moving air. It runs when the system runs, which means it’s providing continuous treatment as long as the bulb is active. Most UV-C bulbs for residential HVAC systems need replacement every 12 to 24 months, at a cost of roughly $80 to $200 per bulb.
Is it worth it? In homes where coil mold keeps recurring, yes. We see this in Sandy Springs homes near the river, and in tightly sealed newer builds where humidity tends to trap inside. If you’re on your second or third coil cleaning in five years, the UV light starts to make financial sense. If we’ve cleaned the coil once and the homeowner manages humidity properly, they may not need the light at all. We’ll tell you which camp you’re in before we quote the installation.
Note: installing a UV-C light involves working inside the electrical compartment of your air handler. This is not a DIY project. The wiring, mounting, and positioning all matter, and a poorly installed light can damage the blower or fail to treat the coil effectively. Our technicians do this work with the power off, by the book, and the installation is covered by the same 365-Day Done Right Promise as everything else we do.
How Does the Air Quality & Sanitizing Process Work?
You should know what happens between the time we arrive and the time we leave. Here’s the sequence on a typical Sandy Springs whole-home sanitizing job.
Arrival and walk-through. The tech arrives in a uniformed vehicle, inside the quoted window, and walks the home with you. We look at the air handler, the main return, the supply registers, and any zones you’ve flagged (musty smell in a specific room, visible dust, humidity issues). This is when we confirm the written price and scope. If we see something that changes the job, we explain it then, in person, before any equipment comes off the truck.
Duct access. If the job includes duct cleaning and sanitizing, we connect a negative-air machine to the duct system. This creates a vacuum that pulls air through the ductwork while we work, which is the Nikro negative-air method. It’s a containment approach, not a “spray and pray” fog from the register.
Sanitizing application. The antimicrobial fog moves through the ducts under negative pressure, coating the interior surfaces. The product we use is designed for HVAC applications, not a general-purpose spray. If the coil is being treated separately, the tech opens the access panel and applies the antimicrobial rinse directly to the coil fins and surrounding housing.
Final walk-through. We verify the treatment covered the intended zones, confirm the access panels are reinstalled correctly, and walk the home with you. The tech explains what was done, what to expect in the first few days (a light, clean scent is normal), and hands you a copy of the written work order with the 365-Day Done Right Promise in writing. Site is left clean. That’s part of The Garrison Code every tech works under.
FAQs – Air Quality & Sanitizing Cost
How much does it cost to sanitize air ducts in Sandy Springs?
Air duct sanitizing alone runs $350 to $700 for a typical 2,000-square-foot home. If your ducts also need cleaning (common in Sandy Springs homes over 10 years old), the bundled cleaning-plus-sanitizing job runs $450 to $1,000. We write the exact price before we start, and it doesn’t move at the door. Call (229) 489-7780 for a free estimate.
Is it cheaper to sanitize or replace ductwork?
Sanitizing is significantly cheaper in almost every case. A whole-home sanitizing job runs $350 to $700; replacing the ductwork in a Sandy Springs home typically runs $3,000 to $8,000 or more depending on access and system size. Sanitizing makes sense when the ducts are structurally sound but have microbial growth or odor. If the ducts are torn, collapsed, or degraded, replacement is the honest recommendation, and we’ll tell you that rather than selling a treatment that won’t hold.
How long does air quality sanitizing take?
Most whole-home sanitizing jobs take 2 to 4 hours from arrival to final walkthrough, depending on home size and access. A coil-only treatment usually takes 45 to 90 minutes. If duct cleaning is included, add another hour or two to the total. We’ll give you a firm time window when you book, and we arrive inside it.
Can you come today for an air quality issue?
We answer phones 24/7, and same-day or next-day appointments are usually available in Sandy Springs, especially for coil mold or odor issues that are affecting the home immediately. Call (229) 489-7780 and tell us what’s going on. We’ll let you know the earliest window, and if we can get a truck to you today, we will.
Does sanitizing remove mold from air ducts permanently?
Sanitizing kills and inhibits microbial growth on the treated surfaces, and we back it with the 365-Day Done Right Promise, meaning if the growth returns within a year, we come back at no charge. However, permanent is not a word anyone with integrity uses in this trade. If the underlying cause (usually humidity or water intrusion) isn’t corrected, mold can return. That’s why we inspect and explain the moisture picture in your home before we treat anything.
Do you offer free estimates for air quality work?
Yes. Every estimate for air quality and sanitizing work in Sandy Springs is free, and the price is written in advance. There’s no charge for the inspection, no obligation, and no pressure. If you want a real number for your home, call (229) 489-7780 and we’ll schedule it.
Why Sandy Springs Homeowners Call Hollis Air Duct
The story we hear most often goes like this: a homeowner got a low price over the phone, the tech arrived and “found” something that doubled the bill, and the crew left without finishing what was promised. That’s the standard this trade has set in too many markets, and Sandy Springs is no exception. We built Hollis Air Duct Sandy Springs to be the opposite of that experience.
Here’s what you get when you call us for air quality work. A written price before any work starts. A technician who is background-checked, uniformed, and has been held to The Garrison Code on every job in our company history. A 365-Day Done Right Promise in writing that says if the work fails within a year, we return and fix it at no charge, including the second visit. And a live person on the phone, 24/7, who can actually answer your question instead of routing you through a call tree.
Roy Castellanos leads our Sandy Springs team with one standing rule: the number we quote is the number you pay. Not always the cheapest bid in town, but the one you can take to the bank. If you’re seeing dust, smelling must, or just want an honest assessment of the air moving through your house, call (229) 489-7780. We’ll give you a free estimate, a written price, and a straight answer.
Written by Roy Castellanos, Owner at Hollis Air Duct Sandy Springs, serving Sandy Springs since 2004.
Pricing reflects the Sandy Springs market as of 2026. Hollis Air Duct Sandy Springs offers free estimates – call (229) 489-7780.
What Our Customers Say
"Sealed some leaking duct joints in the crawl space with mastic. Rooms that were always cold now get air."
- Ronald W."Crew arrived in uniform at the exact time promised. Covered the floors, cleaned all the supply and return vents, and brushed out the main trunk. Vet-owned, and it shows in the discipline."
- Duane S."Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q.