Whole-home duct cleaning
Dryer vent 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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Before
AfterHow Much Does HVAC Cleaning Cost in Houston?
HVAC cleaning in Houston runs between $285 and $690 for a full-system air duct cleaning in 2026, with most single-family homes landing between $350 and $520. That price covers a complete cleaning of the supply and return ducts, the main trunk lines, and the air handler plenum. If you add dryer vent cleaning, plan on another $95 to $190 depending on the run length and how packed the vent is with lint.
We’ll break every number down below so you know exactly what drives cost in the Houston market, what’s optional, and what should never be an add-on. And if you want a written price in your hands before a single vent is touched, call (254) 347-2738 for a free estimate.
HVAC Cleaning Cost Breakdown (2026)
Here’s what a fair HVAC cleaning should cost in Houston this year. These are real ranges from the local market, not national averages scaled to zip code. A note before the table: anyone quoting below $200 for a full-system cleaning is either doing a visual inspection and calling it a cleaning, or planning to “find problems” once they’re inside. A proper cleaning with negative-pressure equipment takes a crew two to four hours on a typical Houston single-story home.
| Service | Typical Houston Price | What You’re Paying For |
|---|---|---|
| Basic duct cleaning (supply only) | $285 – $395 | Supply-side ducts, registers, grilles. No return lines. Usually a 1,200-1,800 sq ft home. |
| Full-system air duct cleaning | $350 – $520 | Supply and return ducts, main trunk lines, air handler plenum, all registers. This is the standard for most 2,000-2,800 sq ft Houston homes. |
| Full-system cleaning + dryer vent | $445 – $690 | Everything in the full-system package plus dryer vent brushing from lint trap to exterior hood. |
| Dryer vent cleaning (standalone) | $95 – $190 | Run length is the big variable. A vent that goes 6 feet to an exterior wall is on the low end. A roof vent with a 25-foot run is the high end. |
| Per-vent pricing (some companies) | $25 – $40 per vent | Less common among reputable companies, but you’ll see it. A 10-vent home at $35 per vent hits $350 fast. |
| Flex duct replacement (if needed) | $180 – $340 per section | Houston heat breaks down flex duct. If insulation is torn or the inner liner is collapsed, cleaning won’t fix it. |
| UV light or filtration add-on | $250 – $1,200 | Optional. Products like Honeywell and Aprilaire filtration run on the higher end but are installed once and filter for years. |
The biggest price swing in Houston is home size and duct accessibility. A 1,500-square-foot ranch in Sharpstown with an attic-access air handler is a straightforward job. A 3,400-square-foot two-story in Katy with a zoned system, two air handlers, and tight chase access will run toward the top of every range. Attic access in August adds time to any job, and Houston attics in August run 130 degrees or worse. A professional crew accounts for that reality; a rushed one skips vent registers to get out of the heat.
What Affects HVAC Cleaning Pricing in Houston
Here’s what actually moves the number. These are the same factors we walk through on every estimate call because they’re the difference between a quote that holds up and one that changes at the door.
- Number of systems. A single HVAC unit with 10-14 vents is the baseline. Two systems (common in two-story Houston homes with upstairs and downstairs units) doubles the work and pushes the price to $600-$900.
- Duct accessibility. Attic-mounted ducts in a low-pitch roof take longer than basement or crawlspace access. Many Houston homes have no basement, so most duct work happens in attics and chases. Crew hours go up in summer, and honest companies reflect that in the estimate up front.
- Duct condition. Houston humidity wrecks flex duct. If a visual inspection shows collapsed inner liners, torn outer jackets, or gaps at the plenum connection, you’re looking at replacement costs, not cleaning. A responsible company tells you before work starts, not mid-job.
- Contamination level. Smoking in the home, recent construction dust (common after Houston-area hurricanes and flooding repairs), or a history of pets inside can add cleaning time. Heavy debris means more passes with agitation equipment and slower extraction.
- Dryer vent length and location. A second-floor laundry with a vent that runs 20+ feet through walls and exits at the roof is a bigger job than a first-floor vent going straight to an exterior wall. Roof vent access requires ladder work and adds $40-$70.
- Add-on filtration products. After a proper cleaning, some Houston homeowners add Aprilaire filters or Honeywell media cabinets to keep the system cleaner between visits. These are optional and should always be quoted as line items, never folded into the base price.
One thing that should not change the price is the time of day or the day of week. If a company quotes one number on Tuesday and a different one on Saturday afternoon, walk away. The home standard at Kestrel is a written price before work starts, every day, with no exceptions.
Houston-Specific Factors That Show Up on the Job
Houston has a few conditions that out-of-town pricing guides don’t account for. These are the reasons a national average like “$299 flat” doesn’t reflect reality here.
Attic Heat and Equipment Wear
Air handlers in Houston attics sit in 130-140 degree heat for four to six months out of the year. That heat accelerates breakdown of flex duct insulation and causes the plastic liner inside the duct to become brittle. When we run a rotobrush through a brittle liner, it can tear. That’s why we inspect before we agitate, and it’s why honest Houston quotes include a contingency for duct sections that are beyond cleaning.
Humidity and Mold Testing
Houston’s 70-90% average humidity means microbial growth inside ducts is a real concern, especially on the return side where condensation collects. If we see what looks like mold during a cleaning, the right move is testing, not scrubbing. A legitimate cleaning company doesn’t “treat” mold without lab confirmation of what it is and where the moisture came from. If the source is a sweating plenum or a clogged condensate line, cleaning alone won’t fix it.
Post-Construction Dust
After any renovation, remodeling, or water-damage remediation in the Houston area, drywall dust and insulation particles end up inside ducts. This is so common after hurricane repair seasons that we schedule a high volume of post-remediation cleanings in spring and early summer. If you’ve had roof work done and the tarp wasn’t sealed over the return vents, that debris is now in your system.
Pollen Load
Houston’s spring pollen season (live oak and cedar from late February through April) pushes more particulate into duct systems than almost any other city in the country. If your system is already holding dust, pollen season makes it worse. The yellow film on your registers in March is live oak pollen, and it’s a sign your return-side filtration is undersized or your ducts are pulling unfiltered air from the attic.
How the Kingswell Guarantee Changes the Price Conversation
Most Houston HVAC cleaning companies sell a service. We sell a written outcome. The Kingswell Guarantee has applied to every job since 2004, and it covers four things in writing: a price you see before work begins, a defined arrival window we keep, a job site left cleaner than we found it, and a 365-Day Done Right Promise that brings us back at no charge if the work fails within the year.
Here’s what that means for cost. The price you’re quoted is the price you pay. Not the price you pay plus a “debris disposal fee” or a “fuel surcharge” invented at the door. The Kingswell Way sets that standard, and every technician who shows up at a Houston home is held to it by name.
Dale Whitmore runs the Houston location, and the standard he sets is simple: if we can’t do the job for the written price, we don’t take the job. That’s not a sales pitch. It’s how the company has operated since the first day of operation under the Kingswell family of companies.
What a Proper Cleaning Actually Includes
You should know what your money buys in real terms. A complete HVAC cleaning at Kestrel includes:
- Brush agitation of all accessible ducts. We run a Rotobrush through each line to break debris loose from the duct wall. That’s the mechanical agitation step. In plain terms: the spinning brush head knocks dust and lint off the inside of the ducts so it can be pulled out.
- Negative-pressure extraction. A Nikro negative-air unit connects at the air handler and pulls the loosened debris to a sealed collection point. The system runs under vacuum during the entire cleaning. In plain terms: the dust doesn’t get blown around your house while we’re working.
- HEPA filtration on the extraction side. Abatement Technologies HEPA filters scrub the air that leaves the collection unit, so loosened particles are captured, not redistributed into your living space.
- Register and grille cleaning. Every supply and return register is removed, cleaned, and reinstalled. This is the part that gets skipped when a crew is rushing, and it’s also the part you can visually verify when we’re done.
- Air handler plenum inspection. We open and inspect the plenum where the supply and return attach to the air handler. Debris collects here and at the blower wheel. If the blower wheel is caked, we’ll show you and clean it as part of the job.
- Post-clean visual confirmation. Before we pack up, you see the inside of your ducts. You’re not taking anyone’s word for it.
We do not sell a “sanitizing fog” as part of a standard cleaning. Some Houston companies do, and it’s rarely worth the $150-$350 upcharge unless you have a confirmed biological problem that requires specific treatment. If you ask about it, we’ll explain the difference honestly.
How to Save on HVAC Cleaning
Saving money on HVAC cleaning isn’t about finding the lowest bid. It’s about avoiding paying twice. Here’s how to keep the bill honest and the outcome real.
- Get the written price before work starts. Every time. If a company won’t put a number in writing before the truck pulls up, their incentive is to raise it at the door. We hand you the price before a single vent is touched, and that number doesn’t change.
- Bundle dryer vent cleaning. If your dryer vent hasn’t been cleaned in two years or more, adding it to an HVAC cleaning is cheaper than booking it separately. Most companies, including us, discount a combined visit.
- Check return-side filter sizing. A properly sized, regularly changed return filter keeps dust from entering the ducts in the first place. If you’re using a 1-inch fiberglass filter, upgrading to a pleated filter of the right MERV rating reduces duct soil load. Honeywell and Aprilaire media filters can extend the interval between duct cleanings significantly.
- Ask what the inspection covers. A good company inspects before cleaning and tells you what they find. If the price is too low for an inspection, it’s too low for a real cleaning.
- Plan for post-construction needs. If you’ve had drywall work, roof repair, or flood remediation inside the home, schedule the duct cleaning after the dust has settled, not before. Cleaning ducts a week before the contractors kick up more debris means paying for the same job twice.
- Call for a free estimate. Our estimates cost nothing and take 15 minutes. Call (254) 347-2738 and you’ll talk to a live person who can give you a realistic range for your home size and system type.
FAQs – HVAC Cleaning Cost
How much does air duct cleaning cost in Houston in 2026?
Most Houston homes pay between $350 and $520 for a full-system air duct cleaning. That covers both supply and return ducts, all registers, and the air handler plenum. Small homes with one compact system can run as low as $285, while large two-unit homes with difficult attic access can reach $690 or slightly more. Call us at (254) 347-2738 for an exact quote for your home.
Is it cheaper to clean or replace air ducts?
Cleaning is almost always cheaper: $350-$520 for a full-system cleaning versus $1,800-$4,000 for a complete flex duct replacement in a typical Houston home. But the question isn’t only about cost. If the flex duct inner liner is collapsed or the insulation jacket is torn beyond repair, cleaning won’t restore it. In that case, replacement is the honest recommendation. A proper inspection tells you which one you need before any money is spent.
How often should HVAC ducts be cleaned in Houston?
Every 3 to 5 years is the standard for most Houston homes, but several factors pull that interval shorter. Homes with multiple pets, homes where someone smokes indoors, and homes that have gone through construction or water-damage remediation often need cleaning every 2 years. If your registers show visible dust buildup or you smell a musty odor when the system cycles on, it’s time to have the system looked at regardless of the calendar.
Can you clean HVAC ducts the same day?
In most cases, yes. We answer calls with a live person 24/7, and if we have a same-day slot in your area, we’ll tell you honestly. The cleaning itself takes 2 to 4 hours for a standard single-system home. Larger homes with two systems may need half a day. If you can’t get same-day service, we give you a defined arrival window for the next available slot and we show up inside it.
Does HVAC cleaning include dryer vent cleaning?
Not automatically. Dryer vent cleaning is a separate service that we offer as a standalone job or as a bundle with air duct cleaning. The bundled price is typically $95-$190 depending on vent length and access. If you’re not sure when your dryer vent was last cleaned, or if your dryer has been taking longer to dry a load, ask the estimator to include it. The combined visit is almost always more economical than two separate trips.
Does the Kingswell Guarantee cover the work if something fails?
Yes. The 365-Day Done Right Promise is part of every job we do in Houston. If the work we performed falls short at any point within 365 days, we return and make it right at no charge. The process is simple: call us, describe the issue, and we schedule the return visit. The guarantee is in writing on every job, and there’s no fine print about what “counts.” It counts. That’s been the operating standard under the Kingswell Guarantee since 2004.
Why do some Houston companies quote $199 for full duct cleaning?
Because they’re not doing a full duct cleaning. At $199, a two-person crew can’t afford the time required to properly agitate and extract all supply and return lines. What that price typically buys is a “inspection and sanitization” visit: a technician takes photos, runs a fogger or sprayer through the main trunk, and leaves. The vent lines themselves, where most dust actually accumulates, are never touched. You’re paying for the inspection they use to sell you the real cleaning at a much higher on-site price. We show you our price in writing before we start, and the number doesn’t move.
Does cleaning HVAC ducts actually matter in Houston?
Yes, for a specific reason: Houston’s pollen load and humidity make return-side duct contamination measurable in weeks during high season. However, we won’t overstate the case. Duct cleaning is not a health cure, and we don’t make health claims. What it does is remove the accumulated dust, pet dander, construction debris, and pollen that your system pulls in and recirculates. If you’ve ever seen a visible puff of dust from your registers when the blower kicks on, that’s what’s being removed. Our HVAC cleaning in Houston service exists to address exactly that buildup with professional-grade equipment and a written guarantee.
Call for a Free Estimate – Written Price in Your Hands
You’ve got the ranges. Now get the exact number for your home. We’ll walk through your system size, the number of vents, the access situation, and whether you want dryer vent cleaning added. Then we’ll give you a written price before any work is scheduled. No door-step revisions. No surprise add-ons. That’s the Kingswell Way. Call (254) 347-2738 and speak with a live person, day or night.
Written by Dale Whitmore, Owner at Kestrel Air Duct Houston, serving Houston since 2004.
Pricing reflects the Houston market as of 2026. Kestrel Air Duct Houston offers free estimates – call (254) 347-2738.
What Our Customers Say
"We just moved into a house that sat empty for a while and the vents were nasty. Kestrel showed me before and after shots at every register. The dust in the house dropped noticeably within a couple days."
- Sandra Voss"My wife's allergies were awful every morning. Had the ducts done and it's made a real difference. Tech was on time and wore booties in the house without me asking."
- Rob Pendergast"Our dryer was taking two cycles to dry a load. They cleaned the vent and pulled out a frightening amount of lint. Dries in one cycle now and honestly I feel better about the fire risk."
- Marcus Lee