Full System Cleaning in Houston, TX

Full System Cleaning in Houston, TX

Full system cleaning means every part of your HVAC air distribution system gets cleaned: supply ducts, return ducts, registers, grilles, coils, blower motor, and the air handler. In Houston, where air conditioning runs 9 to 10 months out of the year, a full system cleaning typically costs $450 to $900 for an average 2,000-square-foot home. We provide a written price before any work starts, and you can reach us at (713) 936-5800 to schedule a free estimate.

This is not a “blow and go” duct job. A full system cleaning covers the entire path air travels from your return vents through the blower and coils and back out your supply vents. If you’ve only had a partial cleaning done before, or you bought a home and have no record of the ducts ever being touched, this is the service that resets the system. You can see how it fits into our broader Air Duct Cleaning service, which also includes dryer vent work and duct sealing.

When You Need Full System Cleaning

Most Houston homeowners don’t wake up thinking about their ducts. The signs show up in the air first. Here’s what tells us a full system cleaning is overdue:

• Dust accumulating within 48 hours of cleaning. You wipe down a bookshelf on Sunday, by Tuesday there’s a film again. That dust is cycling through your vents and back into the rooms.
• Every room stays dusty, but the return-air grille looks caked. The return side of the system pulls air in, and if that grille is matted with gray fuzz, the ducts behind it are worse.
• You bought the home and no one can tell you the last time the ducts were cleaned. In older Houston neighborhoods like Meyerland, Oak Forest, and Glenbrook Valley, we routinely find 10 to 15 years of debris in ducts that were never opened up.
• Airflow from a few vents is weak even after filters are changed. Blockage deep in the branch lines, not the filter, is usually the culprit when airflow tests uneven across rooms.
• There’s a musty smell when the AC kicks on after being off. Houston humidity settles in ductwork during the shoulder months, and that moisture feeds the buildup inside.
• Allergy symptoms are worse at home than anywhere else. You feel fine at work, then sneeze for an hour after getting home. That points to what’s being circulated through your air, not an outdoor allergen.

If two or more of those match what you’re seeing, the right move is a full system cleaning, not another bottle of dust spray. Call (713) 936-5800 and we’ll talk through what you’re seeing before you spend a dollar.

Our Full System Cleaning Process

Every full system cleaning from Hollis Air Duct Houston follows the same steps, in the same order, with the same documentation. Roy Castellanos set this standard when we opened in 2004, and it hasn’t moved since. Here’s what happens on the job:

1. Visual inspection of the entire system. We check the return plenum, supply trunk, branch lines, registers, and the air handler cabinet. You see what we see, and we point out any areas that are worse than expected before we touch anything.
2. Written price before work starts. Based on the inspection, we hand you a written quote covering the full scope. That number does not change at the door, and there are no add-on charges for opening access panels or reaching difficult registers. The price is the price.
3. Negative-air setup with containment. We connect a Nikro negative-air machine to the system and seal off the registers. This puts the ductwork under negative pressure so that loosened debris is pulled out of the house, not blown into it. You won’t find dust settling on your furniture after we leave.
4. Rotary brush agitation through every branch line. We run a Rotobrush rotary brush system through the full length of each duct run, scrubbing the inner surfaces so the negative-air stream can carry off years of caked-on dust, pet hair, and construction debris.
5. Coil, blower motor, and air handler cleaning. This is the step most duct-only companies skip, and it’s the one that matters most in Houston. Your evaporator coil sits in the air stream all day. A dirty coil cuts cooling output and raises your electric bill. We clean it, along with the blower wheel and housing.
6. Final walkthrough and clean-site check. We show you the before and after of the key areas, verify every register was reinstalled, and leave the work area the way it was when we arrived. If anything isn’t right, our 365-Day Done Right Promise covers it in writing for a full year.

Full System Cleaning Pricing in Houston

Here are the ranges we quote for full system cleaning in the Houston market. Your exact price depends on the size of the home, the number of systems, the condition of the ductwork, and whether the coil and blower need more than a standard cleaning. What we can tell you with certainty: the price gets written down before work begins, and it doesn’t move.

Service Component	Typical Houston Price Range
Full system cleaning, 1,500 to 2,000 sq ft home, single HVAC system	$450 – $650
Full system cleaning, 2,000 to 3,000 sq ft home, single HVAC system	$600 – $800
Full system cleaning, 3,000+ sq ft home or multi-story, single system	$750 – $950
Second HVAC system (upstairs/downstairs split)	Add $300 – $450
Evaporator coil cleaning (if heavily fouled)	Add $150 – $300
Blower motor and housing cleaning	Included in full system cleaning
Air handler cabinet and drain pan cleaning	Included in full system cleaning
Register and grille cleaning	Included in full system cleaning

Three things affect the price most in Houston. First, home size and the number of systems. A two-story home in Cypress or Katy with separate upstairs and downstairs units costs more because there are two full systems to clean. Second, how long it’s been since the last cleaning. A house in Spring Branch that hasn’t seen duct cleaning in 15 years will have heavier buildup that takes more time to work through. Third, coil condition. Houston’s humidity means coils collect a lot of moisture and can take longer to properly clean if they haven’t been maintained.

Every quote we give is free. There’s no charge for the inspection, and no obligation if you decide to wait. Call (713) 936-5800 and we’ll put a real number on paper for you.

What Affects Houston Full System Cleaning Costs

• Number of HVAC systems. One system in a ranch home in Willowbrook is a different job than two units in a two-story in Sugar Land.
• Age of the ductwork. Older flex duct or metal duct with years of buildup takes longer to clean properly.
• Accessibility. Some attics in the Heights and Montrose have tight clearances that make the work slower and more careful, not more expensive, but the time on site goes up.
• Coil and blower condition. If the evaporator coil hasn’t been cleaned in years, expect additional time. We’ll show you what we’re seeing before we quote it.
• Pets. Homes with multiple dogs or cats often have heavy hair accumulation in return ducts and register boxes. We account for that in the initial inspection so the written price already includes it.

Why Houston Homes Need Full System Cleaning More Than Most

Houston has a problem most cities don’t: the AC runs nearly all year. A typical Houston HVAC system cycles on and off from March through November, sometimes into December. That’s 8 to 10 months of constant air movement through ductwork, pulling in everything from the air and the house. Add Houston’s humidity on top of that, and you get the perfect environment for dust to stick to duct walls instead of passing through.

Homes near Beltway 8 and the Energy Corridor see more road dust from constant traffic. Homes in older neighborhoods like Pasadena, Deer Park, and La Porte, close to the refineries and Ship Channel, often have a heavier sediment load in the return ducts. We’ve cleaned systems in those areas where the return duct carried a fine gray grit that ordinary filter changes did nothing for. You need mechanical agitation and negative-air extraction to remove that kind of buildup, which is exactly what a full system cleaning provides.

The other Houston-specific factor is humidity. When warm, moisture-heavy air moves through a cool duct run, condensation can form. That damp inner surface catches dust and holds it. Over time, it bakes into a hard layer that restricts airflow and reduces system efficiency. A partial cleaning that skips the coil and air handler does nothing for the part of the system where this matters most. That’s why we don’t offer partial cleanings. Full system or nothing, because half a cleaning is not a cleaning.

What Our Equipment Does (And Why It Matters)

Everything we use on a full system cleaning is commercial-grade. The machines do the work; our technicians run them. Here’s what that means for your home:

• Rotobrush rotary brush systems. A rotating brush runs through each duct run, mechanically scrubbing the walls. No amount of vacuum suction alone can remove a decade of caked-on dust. The brush breaks it loose, and the vacuum captures it.
• Nikro negative-air machines. These create suction pressure that pulls loosened debris out of the ductwork and into a filtered containment unit, preventing dust from circulating into your living space during the cleaning.
• Honeywell and Aprilaire filtration products. If your system needs a filter upgrade or replacement, we carry and install filtration from Honeywell and Aprilaire. We’ll recommend what fits your system, and the recommendation comes with a written price, same as everything else.
• Abatement Technologies HEPA vacuums. For register boxes, vent openings, and final cleanup, we use HEPA-filtered vacuums so the fine particles we remove don’t end up drifting back into the room air.

This is the same class of equipment commercial HVAC crews use in office buildings and medical facilities. We run it in single-family homes all over Houston, from Clear Lake to Tomball to Katy. The tools don’t change; the scale does.

The Garrison Standard and the 365-Day Done Right Promise

Hollis Air Duct Houston is part of the Garrison Partners family of independently owned and operated service companies. Roy Castellanos owns and runs this location, and he holds it to The Garrison Standard. That standard isn’t a slogan. It’s an operational requirement: arrive inside the quoted window, put the price in writing before any work begins, do the job by the book, and leave the site clean. If a technician doesn’t meet that standard, Roy wants to know about it immediately.

Every full system cleaning we perform is covered by the 365-Day Done Right Promise. Here’s exactly what that means: if the work fails within one year, we come back and make it right at no charge. That includes a second visit, free, if the problem is related to our cleaning. We put this in writing on the job documentation. You don’t have to remember a verbal promise or hope a warranty claim gets approved. It’s on the paperwork, signed, dated, and enforceable.

That’s what separates a company that wants your business from one that wants to earn it over time. In a market like Houston, where there are hundreds of air duct cleaning companies and many of them run the same teaser-price playbook, a written guarantee on the work changes the math. We’d rather clean your ducts right the first time and still be here in five years than chase one job and disappear.

Who We Are

Hollis Air Duct Houston has been serving the Houston area since 2004. Roy Castellanos leads this location and still runs jobs personally when the schedule demands it. Every technician who walks through your door is background-checked and uniformed. When you call, a live person answers, 24 hours a day, 7 days a week. No voicemail loops, no call centers that don’t know the local market, no waiting until Monday to reach someone.

We serve the entire Houston metro: Air Duct Cleaning in Houston from downtown to the Beltway, plus the surrounding communities like Sugar Land, Pearland, Katy, Spring, The Woodlands, Cypress, Baytown, Pasadena, Missouri City, League City, Humble, and Kingwood.

FAQs – Full System Cleaning

How much does full system cleaning cost in Houston?

Full system cleaning in Houston typically costs between $450 and $950, depending on home size, the number of HVAC systems, and the condition of the ductwork, coil, and blower. Most single-system homes between 1,500 and 3,000 square feet fall in the $600 to $800 range. Call (713) 936-5800 for an exact quote, free of charge, with the price written down before any work starts.

How long does a full system cleaning take?

A full system cleaning on a single HVAC system in a typical Houston home takes 3 to 5 hours from start to finish. Two-story homes with separate upstairs and downstairs systems can take 6 to 8 hours. We quote the time frame in writing when we inspect, and we arrive within the window we give you.

Is full system cleaning worth it compared to a basic duct cleaning?

Yes, full system cleaning is worth it for most Houston homes because it includes the coil, blower, and air handler, not just the duct runs. A basic duct cleaning that skips the coil leaves the single dirtiest component untouched, and the air blowing through freshly cleaned ducts gets dirty again immediately. The coil is where Houston’s humidity does the most damage to airflow and cooling efficiency, so leaving it out defeats the purpose of the cleaning. If you want the system actually clean, full system is the only version we offer.

Can you clean my ducts the same day?

In most cases we can schedule same-day or next-day full system cleaning in the Houston area, especially during weekdays. Call (713) 936-5800 and a live person will tell you the earliest available window. We answer the phone 24/7, because AC problems in Houston don’t keep business hours.

What’s the difference between a full system cleaning and a dryer vent cleaning?

A full system cleaning covers your HVAC air ducts, coils, and blower, while a dryer vent cleaning clears lint from the exhaust line that runs from your clothes dryer to the outside. They’re separate systems with separate problems: ducts affect your indoor air quality and cooling efficiency; a clogged dryer vent is a fire hazard. We handle both, and we’ll inspect both when we’re on site. If the dryer vent needs work, we’ll show you what we found and give you a separate written price.

Does the 365-Day Done Right Promise actually cover anything after you leave?

Yes. The 365-Day Done Right Promise covers the full system cleaning for a full year, in writing. If anything related to our work fails inside that window, we come back and make it right at no charge, including a free second visit. You don’t have to negotiate with a call center or wait for a warranty committee. The promise is on the paperwork for every job we perform.

Call Hollis Air Duct Houston for Full System Cleaning

If your home has dust that won’t quit, weak airflow from some vents, or a system that’s never been cleaned since you bought the place, a full system cleaning is the answer. We’ll inspect first, give you a written price, and do the work with commercial equipment and zero surprises. Call (713) 936-5800 for a free estimate. A live person picks up, any hour, any day. Roy Castellanos and the Hollis Air Duct Houston team will handle it from there.

Written by Roy Castellanos, Owner at Hollis Air Duct Houston, serving Houston.