Air Quality & Sanitizing Cost - Flat Price, Products Disclosed Up Front

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Whole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents

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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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How Much Does Air Quality & Sanitizing Cost in Marietta?

Air quality and sanitizing services in Marietta, GA typically run between $150 and $650 for most residential jobs, depending on home size, the specific treatments applied, and whether duct cleaning is bundled in. A standalone UV germicidal light installation lands around $250-$450, while a full sanitizing treatment covering the duct system of an average Marietta home (1,800-2,400 sq ft) comes in between $200 and $375. When combined with a complete air duct cleaning, the bundled price for the full package generally falls in the $450-$850 range.

At CleanRun, every number above is a written price delivered before any work starts – no “call for a quote,” no surprise line items when the job is done. That’s Haven Standard Clause 1, and it applies to every job we run in Marietta.

Air Quality & Sanitizing Cost Breakdown (2026)

Below are the real price ranges we quote in the Marietta market. These reflect actual job costs for single-family homes in neighborhoods like East Cobb, West Marietta, and the Kennesaw corridor – not national averages pulled from a survey. Older ranch-style homes near the Historic Marietta Square and newer construction in Waterford Place tend to sit at different points in these ranges for reasons we explain below.

What Pulls a Job Toward the Higher End of the Range

Homes in Marietta’s older subdivisions – particularly those built before 1995 in areas like Whitlock Heights or along Sandy Plains Road – frequently have flex duct that has sagged, kinked, or separated at the joints. When the camera goes into a run and shows debris trapped in a sagged section or visible biological growth near the plenum, the scope of the sanitizing job expands. A straightforward fogging treatment doesn’t reach contaminated material lodged in a collapsed duct section. In those cases, spot duct repair is required before sanitizing, which adds $75-$250 to the line item depending on how many sections need attention.

Square footage matters, but it’s not the only variable. A 2,000 sq ft home in a newer Marietta development like Whitfield Park might have two HVAC zones, which doubles the number of air handlers and means two separate sanitizing passes. A similarly sized older home near Marietta Country Club might have a single system but a duct layout that takes twice as long to photograph and treat because of tight ceiling joist cavities. We price by what the camera shows, not by a square footage formula.

What Pulls a Job Toward the Lower End

A well-maintained system in a home cleaned within the last three to four years, with no visible biological growth and no collapsed duct runs, is a straightforward job. The sanitizing fogging goes in through the plenum, circulates through the system under negative pressure (the duct system is sealed and a HEPA-rated collection unit pulls air through so nothing escapes into the living space), and the work is done in a predictable window. Those jobs come in at the lower end of the ranges above. Bundling also brings the per-service cost down – adding a UV light installation to a cleaning job we’re already running saves mobilization time, and we pass that directly to the written price.

What Affects Air Quality & Sanitizing Pricing in Marietta

• Home age and duct material. Marietta has a wide mix of construction eras. Homes built in the 1970s and 1980s near the Square often have metal ductwork that holds up well but may have decades of debris at the first elbow off the plenum. Homes from the 1990s and early 2000s frequently have flex duct that is prone to sagging in Georgia’s attic heat – a sagged section traps moisture, and moisture in a Marietta attic in July creates exactly the conditions that produce mold inside the duct run. That affects both the sanitizing approach and the price.
• Humidity and climate conditions specific to Marietta. Marietta sits in Cobb County at roughly 1,115 feet elevation, which gives it slightly less humidity than Atlanta proper but still puts it well into the range where indoor relative humidity regularly exceeds 60% in summer without active humidity control. At 60%+ RH, mold can establish on duct liner surfaces in as little as 24-48 hours following a water intrusion event. Homes without a dehumidifier or UV system are more likely to need a full biological treatment rather than a basic sanitizing pass, which moves the price higher.
• Number of HVAC systems and zones. A 3,500 sq ft home in East Cobb with two HVAC units and three zones is a materially different job than a 1,600 sq ft ranch with a single system. Each air handler needs to be treated separately, and each zone’s duct runs get photographed independently. The written price reflects the actual system count, not a blended per-square-foot rate.
• Presence of biological growth (mold, bacteria) confirmed by camera. When the camera goes into a return plenum and shows visible biological growth – which in Marietta homes is most commonly found near the air handler drain pan or at the first elbow of a return run – the sanitizing protocol changes. A standard EPA-registered fogging agent is used in all cases, but growth confirmed on camera may require a second application after a dwell period, which adds time and cost. We document what the camera found in the before photo before saying anything about the treatment plan.
• Duct repair needed before sanitizing. Sanitizing a duct system with gaps, disconnected joints, or collapsed flex runs is work that doesn’t hold. Air carrying sanitizing fog through a gap in the ductwork is just depositing that agent into the attic or crawlspace, not into the return or supply path. If the camera finds disconnected joints – a common finding in Marietta homes where original duct work was taped with cloth duct tape that dried out years ago – repair comes before sanitizing in the scope, and the price reflects that sequence.
• Equipment selected for the job. There’s a real difference between a basic sanitizing fogging agent and a system that uses Nikro or Abatement Technologies negative-pressure equipment combined with an Aprilaire or Honeywell whole-home solution installed at the air handler. The equipment roster affects both the result and the price. We name the equipment on the written price so you can look it up before agreeing to anything.

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How to Save on Air Quality & Sanitizing in Marietta

Bundle Cleaning and Sanitizing on the Same Visit

The single most effective way to reduce the per-service cost of air quality work is to combine duct cleaning and sanitizing in a single appointment. Sanitizing applied to a dirty duct system is largely wasted – the agent can’t reach surfaces coated in debris. So the correct sequence is cleaning first, sanitizing second. Because we’re already at your home with the equipment running, adding the sanitizing pass on the same visit costs significantly less than scheduling it as a separate job. This bundled approach is how most of our Marietta customers book, and the $450-$850 combined range reflects real bundled pricing, not an inflated base with a manufactured discount on top.

Get a Written Second Opinion on Any Competing Quote

If another company has given you a quote – especially one that started with a $79 coupon and grew during the visit – bring that written number to CleanRun. We’ll put our own written price next to it, line by line, at no charge. That’s a standing offer, not a promotional event. CleanRun has offered free second opinions on written estimates since 2013, and it’s the fastest way to see whether a price you’ve been quoted reflects the actual scope of work or a list of add-ons that didn’t belong there to begin with.

Address Humidity Control Before the Problem Reaches the Ducts

In Marietta specifically, proactive humidity management is the cheapest long-term air quality strategy. An Aprilaire or Honeywell whole-home dehumidifier installed before mold establishes in the ductwork costs less than a full biological treatment after the fact. If your home runs above 55% relative humidity in summer – a common reading in older Marietta homes without zoned HVAC – a dehumidifier integration is worth pricing now rather than after the next camera inspection finds growth at the plenum.

Don’t Skip the Air Quality Assessment

The $95-$175 camera inspection and documented photo report might feel like an upfront cost, but it’s the only way to know what you’re actually buying treatment for. Homes in Marietta’s established neighborhoods often look fine from the register and have a serious debris or moisture issue at the first elbow. Skipping the assessment and buying a sanitizing treatment based on a technician’s verbal description is exactly how customers end up paying for work that didn’t address the right problem. The photo record we deliver at the end of the assessment tells you what’s there before you commit to a dollar of treatment.

Call for a Written Estimate Before Committing to Anything

Every estimate CleanRun delivers is written, free, and specific to your home’s system – not a price pulled from a national average or a “starting at” number designed to get a truck in your driveway. Call (470) 516-9337 and a live person will answer. We’ll schedule the assessment, deliver a written price, and you decide what to do from there. No pressure, no expiration clock on the quote.

FAQs – Air Quality & Sanitizing Cost in Marietta

How much does air duct sanitizing cost in Marietta, GA?

A standalone duct sanitizing treatment in Marietta typically costs $150-$275 for a single-system home under 2,500 sq ft. That price covers atomized fogging through the plenum and all connected duct runs, using an EPA-registered agent, with negative-pressure containment so the treatment stays inside the system. If biological growth is confirmed on camera, a second application may be needed, which adds to the base price – but that call is always made after the camera shows us what’s there, and it’s always reflected in the written price before work starts. Call (470) 516-9337 for a written estimate specific to your home’s system.

Is it worth installing a UV light in a Marietta home?

For most Marietta homes, yes – particularly those built before 2000 or those without active humidity control. A single-lamp UV germicidal system runs $250-$450 installed at the air handler. It works by emitting a specific wavelength of ultraviolet light that disrupts the DNA of mold spores and bacteria before they circulate through the duct system. In Marietta’s summer humidity, a UV system is one of the few air quality measures that operates continuously rather than requiring periodic retreatment. The dual-lamp version ($425-$700) is worth the additional cost when there’s a confirmed mold history or when the air handler drain pan has shown recurring biological growth on camera. Call (470) 516-9337 and we’ll put a written number in front of you for your specific system.

What’s the difference between air duct sanitizing and air duct cleaning – and do I need both?

Cleaning and sanitizing are two different steps that work in sequence, not interchangeably. Duct cleaning uses negative-pressure extraction – a HEPA-rated collection unit is connected to the system and the debris is mechanically agitated and pulled out of each duct run. Sanitizing applies an EPA-registered antimicrobial agent after the debris is gone. You need both when the camera finds biological growth or when a system hasn’t been cleaned in five or more years – which covers a large share of homes in Marietta’s older subdivisions. You may need sanitizing only if cleaning was done recently and an air quality assessment shows localized microbial growth. A camera inspection tells you which situation you’re in. The bundled cleaning-plus-sanitizing package runs $450-$850 in the Marietta market for a typical single-family home. Call (470) 516-9337 for a written scope and price before committing to either service.

Can I just buy a store air purifier instead of having my ducts sanitized?

A portable air purifier ($80-$400 at retail) handles particulates in the room it’s placed in. It doesn’t treat what’s inside the duct system. If the camera finds biological growth at the plenum or in a return run, a portable purifier in the living room won’t address the source – it will filter some of what comes out, but the growth remains. A whole-home air purifier installed inline with the air handler ($550-$950 professionally installed) is a different product with a different scope – it treats air moving through the full system rather than a single room. The right answer depends on what the camera shows. If the duct system is clean and well-maintained, a portable or whole-home purifier may be sufficient maintenance. If there’s confirmed growth or five-plus years of debris, sanitizing is the step that actually addresses the source. Call (470) 516-9337 – we’ll do the camera assessment and tell you exactly what we found before recommending anything.

How often does a Marietta home need air quality and sanitizing service?

Most Marietta homes benefit from a full duct cleaning every three to five years and a sanitizing treatment every three to four years, with UV lamp replacement annually if a germicidal system is installed. Those intervals shorten in specific circumstances: homes with pets, residents with allergy or asthma conditions, homes that experienced water intrusion (a roof leak, flooding, or a drain pan overflow), or homes that sat unoccupied for an extended period. Marietta’s summer humidity is the biggest local variable – a home that spent six weeks at 65% indoor RH after an HVAC failure has a different maintenance need than one that ran continuously through the season. An air quality assessment at the start of each cooling season ($95-$175) is the most accurate way to know what interval is right for your specific home. Call (470) 516-9337 to schedule one.

Key Takeaways

• Air quality and sanitizing in Marietta runs $150-$650 depending on the service, with a full duct cleaning and sanitizing bundle at $450-$850 for a typical single-family home.
• Every price CleanRun quotes is written before work starts – Haven Standard Clause 1. There is no “call for a quote” step, and no price exists that isn’t on paper before a panel comes off.
• The camera inspection and photo record is the starting point for every job, not an add-on. What the camera finds determines what the job actually needs – not a square-footage formula or a verbal estimate.
• Marietta’s summer humidity is a direct driver of mold growth in ductwork. Homes without humidity control or UV treatment are at higher risk of recurring biological growth, which costs more to address after the fact than to prevent beforehand.
• Bundling duct cleaning and sanitizing on a single visit is the most cost-effective approach, and the sequence matters: cleaning first, sanitizing second.
• CleanRun has run jobs across Marietta since 2013 – East Cobb, Whitlock Heights, West Marietta, the Sandy Plains corridor, and neighborhoods around the Historic Square. Every one of those jobs left with a written guarantee under the 365-Day Done Right Promise and a documented photo record in the customer’s hands.

About the Pricing on This Page

The ranges above reflect actual job costs in the Marietta, GA market as of 2026, based on work CleanRun has performed across Cobb County. They account for the specific factors that affect Marietta homes: construction era, duct material, attic heat and humidity, and the HVAC system configurations common to this area. They are not national averages, and they are not “starting at” numbers designed to look lower than the final invoice.

If you want to see our Air Quality & Sanitizing in Marietta service page – including the specific equipment we use, the full treatment protocol, and what the photo record looks like when it’s delivered – that’s the right next step. And if you’re here from our home page and this is your first look at CleanRun, the short version is this: written price before work starts, documented photo record when we leave, and a 365-day written guarantee on every job.

CleanRun Air Duct Cleaning Marietta serves homeowners across Marietta and the broader Cobb County area. Technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. Equipment used on Air Quality & Sanitizing services includes Rotobrush, Nikro, Abatement Technologies, Honeywell, Aprilaire, and Guardsman – brands customers can look up independently before agreeing to a price.

To get a written estimate for your Marietta home – no obligation, no expiring coupon, just a specific number for your specific system – call (470) 516-9337. A live person answers every call. If you have a written estimate from another company, bring it. CleanRun will put its own written number next to it, line by line, at no charge, so you can see exactly what you’re comparing.

Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Marietta, serving Marietta, GA since 2013.

Pricing reflects the Marietta market as of 2026. CleanRun Air Duct Cleaning Marietta offers free estimates – call (470) 516-9337.