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
AfterHow Much Does HVAC Cleaning Cost in Katy?
HVAC cleaning in Katy, TX typically runs between $299 and $799 for a standard single-family home, depending on system size, duct count, and what the camera finds inside. Most Katy homes we service fall in the $350 to $550 range – that covers full negative-pressure extraction on every duct run, a documented photo record before and after, and a written price delivered before any panel comes off. If a quote you’ve received sits well below that, ask what equipment is being used and whether you’ll see photos of every run when the job is done.
HVAC Cleaning Cost Breakdown (2026)
The table below reflects what CleanRun quotes in the Katy market as of 2026. Every figure is a written price delivered upfront – Haven Standard Clause 1 means “call for a quote” does not exist here.
| Service Item | Typical Price Range (Katy, TX) | Notes |
|---|---|---|
| HVAC System Cleaning – Small Home (under 1,800 sq ft) | $299 – $389 | Up to 10 duct runs, single system |
| HVAC System Cleaning – Mid-Size Home (1,800 – 3,000 sq ft) | $390 – $529 | Typical for Cinco Ranch, Falcon Landing builds |
| HVAC System Cleaning – Large Home (3,000 – 4,500 sq ft) | $530 – $699 | Dual-zone or multi-system homes common in Cross Creek Ranch |
| HVAC Cleaning – Estate / 4,500+ sq ft | $700 – $799+ | Written scope provided before work starts |
| Dryer Vent Cleaning (add-on) | $89 – $139 | Rooftop vents on Katy townhomes run higher |
| Evaporator Coil Cleaning | $120 – $195 | Priced separately – coil access varies by air handler |
| Blower Motor / Air Handler Cleaning | $95 – $160 | Often needed in homes built pre-2005 |
| Antimicrobial Sanitizing Treatment | $99 – $179 | Applied after extraction; optional add-on |
| Duct Leak Testing (with report) | $145 – $220 | Useful before sealing work in older Katy subdivisions |
| Duct Repair / Sealing (per section) | $195 – $450+ | Written scope required; photo documented |
What Pushes the Price Up
Katy’s housing stock skews toward large floor plans. The newer master-planned communities – Firethorne, Jordan Ranch, and Elyson – regularly produce homes with 18 to 26 duct runs across two systems. Every additional run means more time on negative-pressure extraction and more photos in the documented record. That’s legitimate cost, not padding.
A few other things that move the number: attic duct runs that have partially collapsed (we see this often in homes built during the 2000s construction boom in the Katy area), heavy particulate build-up near the plenum (the central distribution box where conditioned air first enters the duct system), and evaporator coils that haven’t been cleaned in more than three years. In Katy’s humidity, a dirty coil doesn’t just reduce efficiency – it becomes a surface for microbial growth. When the camera shows a coil that’s visibly fouled, cleaning it is a separate line item, not something folded into the base price without telling you first.
What Keeps the Price Down
A newer home with flex duct in good condition and a recent MERV-8 or higher filter history will clean faster and cost less. If you’ve had your system serviced in the last two years and your filter change records are clean, say so when you call – it helps us write an accurate scope from the start. Bundling dryer vent cleaning on the same visit also saves a trip charge.
What Affects HVAC Cleaning Pricing in Katy
- Home size and duct count: Pricing scales directly with the number of supply and return duct runs, not just square footage. A 2,800 sq ft single-story in Cinco Ranch with 16 runs costs less to clean than a 2,600 sq ft two-story in Firethorne with 22 runs and an upstairs air handler. We count every run in the written scope before quoting.
- System age and duct material: Homes built in Katy before 2002 often have sheet-metal trunk lines with flex branch runs. The metal sections tend to accumulate harder, compacted debris – the kind that a shop vac and a basic brush kit won’t shift. Professional-grade equipment like Rotobrush and Nikro is built for this; a discount-rate crew usually isn’t using either.
- Katy’s climate and seasonal dust load: The Houston metro’s high humidity keeps particulate suspended longer than in drier markets. Pollen counts from cedar, oak, and Bermuda grass are consistently high from February through May, and construction dust from ongoing development in Grand Lakes and Elyson blows into return vents during those months. Homes near active construction typically show heavier build-up at the first elbow of every return run – something the camera confirms before the scope is written.
- Evaporator coil and blower condition: If the coil or blower motor is fouled, those are priced as separate line items. A coil cleaning that gets bundled into a flat-rate “whole-system” price without disclosure is a sign the work isn’t actually being done as described – or that the flat rate is high enough to cover it without telling you what you’re paying for.
- Access difficulty: Attic access points in some of Katy’s older neighborhoods – parts of old town Katy near Morton Ranch Road, for example – are narrower than current code requires, and some duct chases run through finished soffits. Restricted access adds time, which adds cost. We note it in the written scope.
- Number of HVAC systems: Large homes in Cross Creek Ranch and Tamarron often run two or three separate systems. Each system has its own air handler, plenum, and full set of duct runs. A written quote covers every system explicitly – there’s no “per system” surprise added after the crew arrives.
BeforeAfterThe $79 Coupon Problem in Katy
Katy homeowners searching for HVAC Cleaning services will find ads for $79 whole-house specials. The business model behind those offers is well-documented in the industry: a crew arrives with a standard shop vac, generates a lot of noise near the registers, then presents a verbal upsell menu that typically lands the final invoice somewhere between $400 and $900 – with no written scope, no before photos, and no way for the homeowner to verify what was actually done inside the ductwork.
CleanRun was built as a direct response to that model. Since Tomas Reyes started the first job in 2013, the rule has been the same: you see the written price before any panel comes off, and you receive documented photos of every run when the crew leaves. If a competitor has given you a written estimate, bring it – we’ll put our own number next to it in writing, at no cost. That’s the Free Second Opinion, and it applies to any written quote you’ve already received.
The HVAC Cleaning in Katy service page goes into more detail on what a documented job actually looks like from start to finish.
How to Save on HVAC Cleaning in Katy
Bundle Services on the Same Visit
Dryer vent cleaning on the same visit eliminates a second trip charge. For most Katy homes, adding dryer vent cleaning to an HVAC cleaning appointment saves $40 to $60 compared to scheduling them separately. Rooftop dryer vents – common in Katy townhomes and some stacked floorplans near the Energy Corridor commuter belt – do run a little higher because of access, but the trip-charge savings still apply.
Keep Filter Change Records
A home with documented MERV-8 or higher filter changes every 60 to 90 days accumulates measurably less debris in the plenum and branch runs. When we can see from the camera that the system is in reasonable condition at the start, the job takes less time. That’s a real cost factor, and we reflect it in the written price. Conversely, a system that’s been running MERV-4 filters or has had them changed irregularly will almost always show heavier build-up at the first return elbow – and the price reflects that too.
Schedule Before Peak Season
Katy’s worst indoor air quality months run from February through June, when pollen load is highest and HVAC systems run harder. Demand for cleaning peaks in late April and May. Scheduling in January or late September typically means faster availability and no premium for a tight schedule. We don’t manufacture scarcity – but technician time is finite, and peak season books quickly.
Get a Written Second Opinion
If you’ve already received a quote from another company, bring it. CleanRun’s Free Second Opinion puts our written number next to theirs, on paper, before you decide. There’s no cost and no obligation. Call (346) 666-7165 to set that up – a live person answers every call.
Ask What Equipment Is Being Used
Professional-grade negative-pressure extraction – using equipment like Nikro or Rotobrush – does the job in fewer visits than a shop vac. A low initial price backed by light equipment often leads to a second call within 18 months. The documented photo record CleanRun provides after every job means you can see exactly what was removed and confirm the work doesn’t need to be redone.
What You Actually Get for the Price
It’s worth being specific about what a CleanRun job delivers, because “HVAC cleaning” means different things depending on who’s doing it.
Every job starts with a written price – Haven Standard Clause 1, no exceptions. Before the crew opens a single panel, you have the full scope and the full cost in writing. Then the camera goes in. Every duct run is photographed before extraction begins – the plenum, every supply run, every return run, the area around the blower motor. You see what’s actually in there before a word is said about what needs to happen next.
Extraction uses professional-grade negative-pressure equipment (Rotobrush and Nikro are the tools on the truck) to pull debris toward a contained collection point rather than redistributing it into the living space. After extraction, the camera goes back in. Every run is photographed again. That before-and-after documented photo record is a standard deliverable on every job – it goes to the customer when the truck leaves, not on request.
The job closes with the 365-Day Done Right Promise: if the work isn’t right, CleanRun makes it right. That’s in writing on every job, backed by Tomas Reyes personally, not subject to manager approval.
From the home page you can see the full list of services and the H.A.V.E.N. Standard that governs every visit.
Katy-Specific Notes on HVAC Cleaning
Katy’s HVAC systems work harder than those in most Texas cities of comparable size. The combination of high summer humidity (70% to 85% relative humidity is common from June through September), a long cooling season that runs well into October, and ongoing large-scale residential development in the western corridors creates conditions that accelerate debris accumulation in ductwork.
In Cinco Ranch, we regularly see flex duct connections that have pulled partially loose at the plenum – a result of the thermal expansion and contraction cycles that come with running a system hard for eight months of the year. That kind of separation creates a bypass where unconditioned attic air (which in a Katy summer attic can reach 140 degrees Fahrenheit) enters the supply side. It’s an efficiency problem and an air quality problem, and it shows up clearly on the camera during a documented inspection.
In the older sections of Katy near Katy-Fort Bend Road and Morton Ranch, sheet-metal duct trunk lines from the 1990s are still common. These hold debris differently than modern flex duct – compacted particulate at elbows and branch takeoffs is the norm rather than the exception, and it requires rotary brush agitation (that’s the Rotobrush’s job) before negative-pressure extraction can clear it effectively.
New construction in Jordan Ranch, Elyson, and Cane Island sometimes shows construction debris in the duct runs – drywall dust, insulation fragments, and occasionally fasteners – left from the build phase. Builders often tape over registers during construction, but the tape isn’t always applied consistently. A pre-occupancy cleaning in a Katy new build is a documented job, not a precaution you take on faith.
How to Read a Competitor Quote Before You Accept It
If you’re comparing quotes for HVAC cleaning in Katy, these are the questions worth asking in writing before you agree to anything:
- Is the price written down before work starts? A verbal price is not a price. If it’s not in writing before the panel comes off, the final invoice can be anything.
- What equipment is being used? Ask for the make and model of the extraction unit. If the answer is vague or omits a brand name, that’s informative.
- Will you receive before-and-after photos of every run? Not a selection. Every run. If the answer is “we can show you a few,” that’s not documentation.
- Is the evaporator coil cleaning included, or is it a verbal upsell? Coil cleaning is a legitimate and often necessary service – but it should be a line item in the written scope, not a surprise when the technician is already in the attic.
- What does the guarantee cover and for how long? A satisfaction guarantee that requires manager approval is not a guarantee – it’s a policy. Ask for the terms in writing.
If the company you’re evaluating can’t answer all five in writing before the appointment, bring the quote to CleanRun. The Free Second Opinion is available at no cost – call (346) 666-7165 and a live person will take the details.
FAQs – HVAC Cleaning Cost in Katy
How much does HVAC cleaning cost in Katy, TX?
HVAC cleaning in Katy typically costs between $299 and $799 for a single-family home, with most mid-size homes (1,800 to 3,000 sq ft) landing in the $390 to $529 range. The price scales with duct count and system configuration, not just square footage. CleanRun puts that number in writing before any work starts – call (346) 666-7165 for a written estimate with no obligation.
Is HVAC cleaning worth the cost in Katy’s climate?
In Katy’s humidity, a neglected HVAC system doesn’t just move air less efficiently – the moisture conditions inside uncleaned ductwork create a surface for microbial growth, particularly on and around the evaporator coil. The EPA’s documented position is that if significant mold, pest debris, or heavy particulate is present in the duct system, cleaning is warranted. In Katy, where systems run 8 to 10 months per year, three to five years between cleanings is a reasonable service interval for most homes. The camera shows what’s actually there – that’s the only honest answer to “is it worth it.”
How often should Katy homeowners have their HVAC system cleaned?
Every 3 to 5 years is the standard interval for most Katy homes under normal occupancy. Homes with pets, residents with respiratory conditions, recent renovation work, or proximity to active construction sites – common in fast-developing areas like Elyson and Cane Island – should consider a 2 to 3 year interval. The documented photo record from a completed CleanRun job gives you a visual baseline, so the next technician can show you exactly what has changed rather than asking you to take their word for it.
What is the $79 whole-house HVAC cleaning deal, and is it legitimate?
The $79 whole-house price point is a lead-generation model, not a service model. At that price, the economics require either a very quick visit with light equipment or a verbal upsell structure that brings the final invoice to several hundred dollars – typically after the crew is already in the attic. Legitimate HVAC cleaning using professional-grade equipment with full duct extraction, coil inspection, and documented results cannot be delivered profitably at $79 for a standard Katy home. If you’ve received a quote at or near that figure, ask for the full written scope and equipment list before the appointment. If it doesn’t come in writing, the answer is no.
Does CleanRun charge extra for large homes in Katy?
Larger homes with more duct runs cost more to clean – that’s honest pricing, not a surcharge. Homes over 3,000 sq ft in communities like Cross Creek Ranch or Tamarron, which often have dual systems and 20 or more duct runs, typically fall in the $530 to $699+ range. The written price you receive before work starts covers the full scope – every system, every run, every photo. There are no verbal add-ons after the crew arrives. Call (346) 666-7165 to get a written quote specific to your home’s layout.
Can CleanRun provide a written second opinion on a competitor’s quote?
Yes – and it costs nothing. Bring any written estimate from another Katy HVAC cleaning company and CleanRun will put its own written price next to it before you make a decision. The comparison is in writing, covers the same scope, and carries no obligation. Call (346) 666-7165 to schedule a Free Second Opinion.
Key Takeaways
- HVAC cleaning in Katy runs $299 to $799 for most homes, with the $390 to $529 range covering the majority of mid-size single-family properties.
- Duct count, system age, coil condition, and access difficulty are the four real cost drivers – square footage alone doesn’t tell the story.
- Katy’s climate (high humidity, long cooling season, active construction dust) accelerates debris accumulation relative to drier Texas markets.
- A written price before work starts and a documented photo record after are the two things that separate a real HVAC cleaning from a vacuum noise demonstration.
- The 365-Day Done Right Promise backs every CleanRun job in writing.
- Free Second Opinion on any written estimate – call (346) 666-7165.
For a written estimate on your Katy home, call (346) 666-7165. A live person answers every call. Tomas Reyes and the CleanRun team have been delivering documented results across the Katy area since 2013 – 52,000+ homes served, every one with a written price before work started and a photo record when the crew left. There’s no quote request form, no waiting for a callback – call now and get a written number before any decisions are made.
Pricing reflects the Katy, TX market as of 2026. CleanRun Air Duct Cleaning Katy offers free estimates – call (346) 666-7165.
Written by Tomas Reyes, Owner at CleanRun Air Duct Cleaning Katy, serving Katy, TX since 2013.
What Our Customers Say
"Thorough job on the ducts and the dryer vent. Left the house clean and the paperwork was clear."
- Rafael I."Flat price agreed up front, no per-vent add-ons at the end. That was the whole reason I did not call the coupon company."
- Suzanne B."They found a disconnected duct in the crawl space that had been dumping conditioned air under the house for years. Photographed it, quoted the repair, fixed it."
- Devon A.