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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AfterFast, Reliable Air Duct Cleaning Across Longwood
Air duct cleaning in Longwood typically runs $350 – $650 for a full residential system, with most jobs completed in a single visit. We’re Hollis Air Duct Cleaning, part of the Garrison Partners family, and we’ve been dispatching crews to Longwood from our Miami office since 2004. Our technicians know the difference between a 1978 ranch near the historic district and a 2005 build in Sabal Point, and that matters because the ductwork tells a completely different story. Call us at (361) 326-5060 for a free estimate with a written price before any work starts.
Why Hollis Air Duct Cleaning Is Longwood’s Preferred Air Duct Cleaning Company
We’ve built our reputation in Seminole County on showing up inside the window, pricing in writing, and leaving the site clean. That’s The Garrison Standard, and it applies to every Longwood job we take.
Our technicians are background-checked and uniformed. You know who’s walking into your home before they arrive. No van without a name, no crew without a badge.
Phones are answered by a live person 24 hours a day, 7 days a week. No voicemail loops, no callback queues, no waiting until Monday to schedule.
Every repair and cleaning is backed by our 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. That’s not a slogan; it’s written on every job.
HVAC Duct Cleaning in Longwood
HVAC Duct Cleaning in Longwood means more than pushing a brush through a metal tube. Because most homes here run air conditioning 10 – 11 months a year, the entire system stays damp, and that changes what “clean” actually requires. We use negative-air machines from Nikro to put the system under controlled suction, then agitate the duct walls with Rotobrush rotary tools to knock loose the fine oak pollen, organic debris, and biological growth that sticks to damp surfaces. A typical full HVAC duct cleaning in Longwood runs $450 – $650 for a standard single-system home.
Supply and Return Line Cleaning
Supply ducts push conditioned air into your rooms; return ducts pull it back. In Longwood’s older homes, we often find the return side loaded with debris because it operates at lower pressure and doesn’t filter as aggressively. We clean both sides as a matched set, not one or the other.
Video Inspection Before and After
We run a camera through the trunk lines before we start and after we finish. You see what we see. In Longwood’s historic district, that camera often reveals disconnected flex runs or moldy fiberglass wrap that a surface clean won’t fix.
Vent Cleaning in Longwood
Vent Cleaning in Longwood targets the registers, grilles, and short branch lines where dust first becomes visible to homeowners. Because Longwood’s dense oak canopy drops fine organic matter year-round, and because constant AC use keeps humidity high, the vents are where you’ll notice black buildup or musty smells first. We remove each register, clean the boot and the first few feet of branch line, and treat the surrounding surfaces. A standalone vent cleaning in Longwood runs $150 – $250; most homeowners bundle it with full system work. Our Air Duct Cleaning team can assess whether you need vents alone or the full system.
Register and Boot Detailing
The boot is the sheet-metal box behind your wall or floor register. It’s a dead-air zone where debris collects and where mold often starts. We clean and treat the boot, not just wipe the visible grille.
Branch Line Spot Cleaning
When a single room smells musty or shows weak airflow, the problem is often a crushed or sagging branch line. We can spot-clean and inspect that run without charging for a full system.
Trusted Brands We Service in Longwood
We clean and service ductwork connected to all major HVAC brands, and we stock filtration products from Aprilaire, Honeywell, and Guardsman for Longwood customers who want to upgrade after a cleaning. Our equipment roster includes Rotobrush rotary brush systems and Nikro negative-air machines, the same tools commercial crews use in hospitals and schools. If your system needs a filter upgrade or a UV treatment after we finish, we carry the parts and install them same visit. No waiting on a second trip, no “we’ll call you when it comes in.”
Common Air Duct Cleaning Problems We See in Longwood Homes
- Sagging flex duct in 1970s – 80s ranches. Original flexible ductwork near Longwood’s historic district has softened at joints over decades, creating low spots where debris settles and airflow stalls. A standard cleaning won’t restore performance if the duct is physically collapsed.
- Moldy fiberglass insulation on trunk lines. The fiberglass wrap applied to original sheet-metal trunks has deteriorated and trapped condensation for years. We find this constantly in older Longwood homes, and it produces the musty smell homeowners report every spring.
- Disconnected branch runs in attic spaces. High summer heat in Longwood attics degrades duct tape and zip ties. A branch line feeding a back bedroom can detach completely, blowing conditioned air into the insulation and leaving the room hot and humid.
- Fine organic debris from oak and pine canopy. Longwood’s tree cover is beautiful, but the pollen and leaf mold enter through intake vents and stick to damp duct walls. Without proper agitation and negative-air extraction, it recirculates.
Pricing for Air Duct Cleaning in Longwood, FL
We don’t do per-vent pricing, and we don’t bait you with a low coupon that doubles once the van is in your driveway. Here’s what air duct cleaning actually costs in Longwood:
| Service | Typical Range in Longwood |
|---|---|
| Full residential HVAC duct cleaning (single system) | $450 – $650 |
| Vent cleaning only (all registers) | $150 – $250 |
| Video inspection and assessment | $75 – $125 (credited toward cleaning if hired) |
| Duct sealing with mastic (per system, when needed) | $200 – $400 additional |
| Commercial duct cleaning | $800 – $2,500 depending on square footage |
What moves the price: system size, accessibility (crawl space vs. attic), condition of existing ductwork, and whether we find disconnected or crushed runs that need repair. We inspect first, write the price down, and you approve it before we touch anything. Call (361) 326-5060 for an exact quote; estimates are free.
We Also Serve Cities Near Longwood
Our crews work throughout Seminole County and beyond. We regularly clean ducts in Longwood, Lake Mary, Altamonte Springs, Casselberry, and Winter Springs. Scheduling is coordinated from our Miami office, but the technicians who arrive at your door live and work in Central Florida, not out-of-state contractors.
Serving Longwood, FL - Our Local Coverage Area
We’re based in the Longwood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Longwood
Longwood’s combination of year-round humidity and dense oak canopy creates worse conditions than drier inland cities. The AC runs nearly constantly, so ducts never fully dry, and organic debris from the trees sticks to damp surfaces and grows mold. In the historic district, deteriorating fiberglass insulation wrap on 1970s – 80s trunk lines is usually the real source of the smell, not the duct interior. Call (361) 326-5060 and we’ll camera-inspect to find out.
Yes. Older ranches typically have original flexible ductwork that has sagged, disconnected, or had its fiberglass insulation wrap colonized by mold. Newer Sabal Point homes usually have rigid metal trunks with flex runs in better condition, though they still collect debris from constant AC use. We adjust our approach and our equipment based on what we find during video inspection. The price range is similar, but the work required often differs.
Uneven temperatures between rooms, weak airflow at specific registers, or a musty smell that localizes to one area are the usual signs. We confirm it with a video camera inspection that shows you the damage in real time. We were called to a 1978 ranch off West Warren Avenue near the historic downtown because the family smelled musty air every time the AC kicked on. Camera inspection showed a disconnected flex run sagging in the attic and moldy fiberglass wrap on the trunk line, so we set the system under negative pressure with HEPA filtration, agitated the supply and return ducts with Rotobrush tools, and found the real culprit: a crushed branch duct feeding two bedrooms. Reconnecting and sealing that run eliminated the odor and restored airflow to both rooms.
Proper cleaning means negative-air extraction with HEPA filtration, mechanical agitation of all duct surfaces, and a post-cleaning video inspection. For Longwood’s older homes, it also means inspecting the fiberglass insulation wrap for mold and checking flex runs for sags or disconnections. If we find deteriorated wrap or crushed ducts, we’ll show you and quote the repair separately before doing anything. The written price comes first.
Cleaning removes what’s already inside; sealing prevents new contamination and fixes airflow loss. In Longwood’s humid climate, we often recommend sealing disconnected joints and coating deteriorated insulation with mastic after cleaning. Otherwise, the same moisture and debris will re-enter. Sealing typically adds $200 – $400 to a full system job, and we only recommend it when video inspection shows it’s necessary. Call (361) 326-5060 for an assessment.
Ready to find out what’s actually in your ducts? Call Hollis Air Duct Cleaning at (361) 326-5060 for a free estimate in Longwood. We’ll send a background-checked, uniformed technician who arrives inside the quoted window, inspects with a camera, and gives you a written price before any work starts. Every job is backed by our 365-Day Done Right Promise.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Longwood since 2004.