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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Before
AfterTrusted Air Quality & Sanitizing for Round Rock Homeowners
Our Air Quality & Sanitizing in Round Rock typically addresses mold, bacteria, allergens, and persistent odors inside your ductwork and HVAC system, with most treatments completed in a single scheduled visit. CleanRun Duct Repair & Cleaning has delivered documented photo records of every duct run since 2013, serving over 52,000 homes with written prices agreed before any work starts. Call (737) 259-5752 for a free estimate with no obligation.
Round Rock’s combination of clay-heavy soils, seasonal humidity swings, and rapid new construction from 2015 to 2025 creates specific indoor air challenges. We’ve found standing water in plenums, the main distribution box connected to your furnace, in homes near Brushy Creek after spring rains. We’ve documented mold growth in duct runs less than three years old in the Teravista and Forest Creek subdivisions, as well as in Hutto, where construction debris was never fully extracted. Our crews photograph every interior surface before and after treatment, so you see what was actually in your system, not just hear about it.
What Our Air Quality & Sanitizing Service Includes
Mold Treatment
Mold inside ductwork releases spores into conditioned air every time your HVAC cycles, and in Round Rock’s humid spring and fall seasons, we’ve found active growth in systems as new as 18 months old. You need mold treatment when visible growth appears on registers, when a musty smell intensifies with AC use, or when occupants experience unexplained respiratory symptoms that improve away from home. CleanRun Air Duct Cleaning Round Rock applies EPA-registered fungistatic treatments to affected duct runs after mechanical agitation and negative-pressure extraction, which pulls loosened debris out of the system rather than redistributing it, then photographs every treated surface for your job record.
Bacteria Sanitizing
Bacteria colonization in HVAC systems produces biofilm, a slimy layer that reduces airflow and can generate odors even when ducts appear clean, particularly in Round Rock homes with evaporator coils that never fully dry between cycles. You need bacteria sanitizing when there’s a persistent sour or dirty-sock smell, after water intrusion events, or when family members experience recurring sinus infections without outdoor allergy triggers. Our technicians apply hospital-grade sanitizers through the full duct network using professional fogging equipment from Abatement Technologies, with concentration levels documented in your written scope, and verify coverage with UV-reactive tracer dye visible in the after photos.
Odor Removal
Stubborn HVAC odors in Round Rock often trace to pet dander accumulation in flex duct, cooking oil residue that coats metal trunk lines, or previous owner habits absorbed into porous duct board, especially common in the resale-heavy neighborhoods of Behrens Ranch and Paloma Lake. You need professional odor removal when filters and standard cleaning fail, when smells intensify with temperature changes, or when you’re preparing a home for sale and need documentation of treatment. CleanRun uses thermal fogging and oxidizing treatments that reach into porous materials, not just surface wiping, and provides before-and-after photos plus a written treatment certificate for real estate disclosures.
UV Light Installation
UV-C light installed at the evaporator coil or in the return plenum prevents mold and bacteria growth on wet surfaces, the single most common source of indoor air quality complaints in Central Texas climate zones. You need UV light installation when mold recurs after cleaning, when your system runs continuously during high-humidity months, or when you want ongoing prevention without repeated chemical treatments. We size and install Honeywell and Aprilaire UV systems matched to your coil dimensions and airflow rate, with lamp replacement intervals written into your maintenance record, and we photograph the mounting location to verify no light leakage that could degrade filter media or wiring insulation.
Air Purifier Install
Whole-home air purifiers integrate with your existing ductwork to capture particles, neutralize gases, or both, depending on the technology, and in Round Rock’s pollen-heavy spring seasons they reduce the load that otherwise accumulates inside ducts. You need an air purifier install when family members have diagnosed allergies or asthma, when you have new carpeting or furniture off-gassing volatile compounds, or when standard filters clog within weeks. CleanRun installs Honeywell electronic air cleaners and Aprilaire media purifiers with MERV 16 ratings, sized to your system’s CFM capacity, with pressure-drop measurements taken before and after to ensure your blower motor isn’t overworked, a specification many competitors skip.
Allergen Reduction
Allergen reduction targets the accumulated pollen, dust mite debris, and pet dander that standard vacuuming of registers never reaches, particularly problematic in Round Rock’s cedar fever season from December through February when outdoor counts exceed 20,000 grains per cubic meter. You need allergen reduction when symptoms persist indoors during peak pollen periods, when you’ve recently acquired pets, or when moving into a home with unknown previous occupants. Our process combines mechanical brushing with HEPA-filtered negative-pressure extraction using Rotobrush equipment, then applies a non-toxic anti-allergen treatment to duct surfaces, with particulate counts measured before and after where accessible for your documentation.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Air Quality & Sanitizing
We’ve installed and serviced hundreds of Honeywell whole-home purifiers and UV systems in Round Rock, Georgetown, and Cedar Park homes, and we stock replacement lamps, cells, and media filters for their most common residential models. Our technicians measure actual system airflow with calibrated manometers rather than relying on nominal ratings, because a purifier rated for 2,000 CFM performs poorly if your ductwork only delivers 1,400. We’ve also maintained Aprilaire media cleaners and steam humidifier-purifier combinations since 2013, with particular experience in the hard-water conditions common to Wells Branch and Pflugerville where mineral scale affects electronic components.
Nikro portable HEPA equipment and Abatement Technologies containment systems are standard on every CleanRun truck for jobs requiring localized isolation, such as mold treatment in a single duct branch without cross-contaminating the whole house. Whether you have Honeywell, Aprilaire, or any other make of air quality equipment, we can service, repair, or replace it with written pricing before work starts. Our home page lists our full service categories, and we also provide Air Quality & Sanitizing in Brushy Creek for homeowners just west of Round Rock proper.
BeforeAfterSigns You Need Air Quality & Sanitizing Right Now
- Musty or sour odors when HVAC cycles. Smells that intensify when air first turns on indicate microbial growth on wet coil surfaces or in standing water in the plenum, not just dirty ducts. In Round Rock’s spring 2024 season, we found active mold in 34% of systems where homeowners reported this symptom, often within two years of new construction.
- Visible mold on registers or inside duct openings. What you can see represents a fraction of total growth; duct interiors provide ideal conditions with temperature differentials and organic dust accumulation. We document the full extent with borescope cameras before quoting treatment, so you know the actual scope, not just the visible tip.
- Allergy symptoms worse indoors than outdoors. When cedar, oak, or ragweed season passes but sneezing and congestion continue, your ductwork has become a reservoir. Our allergen reduction service includes particulate measurement where accessible to quantify the improvement.
- Recent water intrusion or leak repair. Even brief moisture events in attics or crawl spaces can inoculate duct insulation with mold spores that spread through the system. We inspect adjacent duct runs with cameras after any plumbing or roof leak, not just the visibly wet section.
- Buying a home built 2015-2025 with no duct documentation. Construction debris in new ducts is routine; we’ve extracted drywall dust, wood scraps, and soda cans from “new” systems in Round Rock’s fast-build subdivisions. Our photo record shows you exactly what the previous owner left behind.
Our Air Quality & Sanitizing Process - Step by Step
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Written estimate with scope documentation. We inspect accessible ductwork with borescope cameras, identify contamination type and extent, and deliver a written price before any work begins, per Haven Standard Clause 1. No verbal quotes, no “we’ll see when we get in there” pricing. The scope specifies which duct runs, which treatments, and what equipment will be used.
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Containment and protection. For mold or bacteria jobs, we isolate the work zone with Nikro HEPA-filtered negative air machines and seal registers to prevent cross-contamination. Your furniture and flooring are protected with clean drop cloths, not reused tarps from the previous job.
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Mechanical agitation and extraction. We use Rotobrush contact cleaning or pneumatic whips depending on duct material, flex duct versus metal versus duct board, followed by high-velocity negative-pressure extraction that pulls debris out of the system entirely. The vacuum collection is HEPA-filtered to 0.3 microns, capturing mold spores and bacteria that pass through standard shop vacuums.
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Application of treatment agents. Sanitizers, fungistats, or anti-allergen treatments are applied at manufacturer-specified concentrations and dwell times, not rushed. We document product lot numbers and application rates in your job record for warranty purposes.
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Verification photography and final documentation. Every treated duct run is photographed before we close access panels, with images delivered as part of your standard job record. You receive the written scope, the photo record, and the 365-Day Done Right Promise documentation before we leave. If anything fails to meet the agreed standard, Haven Standard Clause 5 requires we return and correct it.
How Much Does Air Quality & Sanitizing Cost in Round Rock?
A typical bacteria sanitizing or odor removal for a single HVAC system in Round Rock runs $340-$580, depending on the number of duct runs, the contamination type, and whether the evaporator coil requires separate treatment; see our Air Quality & Sanitizing pricing for full details. Mold treatment ranges from $480-$920 for localized growth in accessible ductwork, escalating to $1,400-$2,200 if the plenum or coil cabinet is involved and requires partial disassembly. UV light installation with a quality Honeywell or Aprilaire unit typically falls between $380-$650 including lamp, ballast, and electrical connection to existing HVAC wiring. Whole-home air purifier installs range $680-$1,400 for media-based systems, $1,200-$2,400 for electronic cleaners with pre-filters, with the variance driven by your system’s airflow capacity and existing duct configuration.
Several factors move prices within these ranges. The age and layout of your ductwork matters: 1980s-era metal trunk with fiberglass liner requires different handling than modern flex duct, and homes in Round Rock’s older sections near downtown have more varied configurations than the standardized builds in Teravista or Sonoma. Accessibility affects labor time; attics with limited clearance or ductwork buried behind finished basement ceilings require additional setup. The extent of contamination discovered during inspection can expand scope, but we photograph everything and stop for written approval before adding work, never after the fact.
To avoid overpaying, reject any quote that won’t put the full scope and price in writing before work starts. Be wary of per-vent pricing, which incentivizes superficial treatment of many outlets rather than thorough cleaning of the complete duct network. The $79 coupon model typically covers a brief vacuuming of registers and a sales pitch for upgrades; we’ve been called after such visits to find the main trunk lines untouched. Our flat price per system, agreed in writing, covers all accessible ductwork with no per-vent add-ons.
Every CleanRun estimate is free and includes the borescope inspection and photo documentation. We also provide a Free Second Opinion on any competitor’s written estimate, putting our scope and price alongside theirs so you can compare actual deliverables, not just bottom-line numbers. Call (737) 259-5752 to schedule.
Air Quality & Sanitizing Near Round Rock - Our Service Area
CleanRun Duct Repair & Cleaning serves Round Rock directly and the surrounding communities homeowners commonly reference: Brushy Creek, Wells Branch, Pflugerville, Hutto, Jollyville, Cedar Park, Georgetown, Leander, Manor, Taylor, and north Austin. Most scheduled appointments within Round Rock city limits and adjacent neighborhoods like Behrens Ranch, Paloma Lake, and Forest Creek are available within three to five business days. For homeowners in Wells Branch or Brushy Creek, we coordinate routing to minimize travel time and keep appointments punctual. We do not charge trip fees within our standard service radius; the written price covers everything from arrival to final documentation.
Serving Round Rock, TX - Our Local Coverage Area
We’re based in the Round Rock area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Air Quality & Sanitizing in Round Rock
Air quality and sanitizing targets living contaminants, mold, bacteria, viruses, and the odors they produce, while standard duct cleaning removes accumulated dust and debris. The equipment overlaps, but sanitizing requires EPA-registered treatment agents, proper dwell times, and verification that the agent reached all surfaces, not just mechanical removal. CleanRun provides both services and specifies in your written scope which you’re receiving, so there’s no ambiguity about what was actually done inside your ducts.
A typical residential system in Round Rock requires three to five hours for complete sanitizing treatment, including setup, mechanical cleaning, agent application with proper dwell time, and verification photography. UV light or air purifier installations add one to two hours depending on electrical access and duct configuration. We schedule specific arrival windows, not all-day windows, and call 30 minutes before arrival under Haven Standard Clause 2: Respect for Customer Time.
Most single-system sanitizing jobs in Round Rock fall between $340-$580 for bacteria or odor treatment, $480-$920 for accessible mold, and $680-$2,400 for whole-home purifier installations depending on technology type. We deliver a written, itemized price after inspection and before any work begins, with no per-vent add-ons or post-work surprises. Call (737) 259-5752 for a free estimate with exact numbers for your system.
Yes, we install, maintain, and repair Honeywell UV systems, electronic air cleaners, and whole-home purifiers, plus Aprilaire media cleaners, steam humidifiers, and ventilation controls. We stock common replacement parts and size new installations to your system’s actual measured airflow, not nominal ratings. If you have a different brand or aren’t sure what’s installed, we identify and document it during the free estimate visit.
We answer calls live 24 hours a day and schedule urgent appointments as soon as technician availability allows, typically within 24-48 hours for active mold or health-impacting odor situations. We do not inflate pricing for urgent scheduling; the written price depends on scope, not timing. For immediate concerns about respiratory symptoms, we also recommend consulting your physician while we address the environmental source.
Every job is backed by the 365-Day Done Right Promise: if the work fails to meet the agreed scope, or if treated mold recurs within one year due to application failure, we return and correct it at no charge. This is a written guarantee delivered with your job record, not a verbal policy. Haven Standard Clause 4: Documented Accountability requires we maintain your photo record and scope for the full warranty period.
Clear a three-foot area around your HVAC unit and the access panel to your attic or crawl space if applicable; remove fragile items from shelves near registers that might vibrate during equipment operation. We bring all protective materials and handle furniture positioning as needed. After treatment, we recommend running your system normally; if oxidizing agents were used, we note any brief ventilation period in your written aftercare instructions. Call (737) 259-5752 with any preparation questions when scheduling.
Schedule Your Air Quality & Sanitizing Service in Round Rock Today
Call (737) 259-5752 to speak with a live person and schedule your free estimate. You’ll receive a written scope and price before any work begins, a documented photo record of every duct run when we finish, and the 365-Day Done Right Promise in writing. No coupons, no per-vent games, no surprises after the truck leaves. Tomas Reyes and the CleanRun team have worked this way since 2013, and we don’t intend to change.
Written by Tomas Reyes, Owner at CleanRun Duct Repair & Cleaning, serving Round Rock since 2013.