Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
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.
Nikro Duct Sealing in Fort Lauderdale: What to Know First
We provide independent Nikro duct sealing in Fort Lauderdale, and most jobs are completed in a single visit. You’ll know the exact price before we start work, and every sealing job carries our 365-Day Done Right Promise in writing. If you own a Nikro air scrubber, negative-air machine, or filtration unit and you’re losing air through the ductwork, call us at (754) 354-3644 and we’ll tell you straight what it needs.
This page is for Nikro owners throughout Fort Lauderdale, from Victoria Park to Coral Ridge to the neighborhoods off Sunrise Boulevard. We’re an independent Nikro service provider, not a manufacturer-authorized shop, which means we answer to you, not a corporate warranty department. Roy Castellanos and our crew work on Nikro equipment regularly, and we know where these units leak and how to fix them right.
How Nikro Products Fail – and How We Fix Them
- Nikro negative-air machines pulling weak suction. The flexible duct collars on Nikro units, particularly older NP and HEPA series models, crack where they meet the machine housing. Salt air in Fort Lauderdale accelerates rubber and neoprene breakdown. We see this on units that sit in garages or laundry rooms within a few miles of the Intracoastal. The fix is replacing the collar and sealing the connection with mastic rated for HVAC use, not a hardware-store patch.
- Nikro air scrubbers cycling on and off without a clear cause. When the internal gaskets around the HEPA filter frame dry out, the unit reads a pressure drop and shuts down to protect itself. We open the housing, replace the gasket material, and reseal the filter chamber so the machine holds vacuum. This is a pattern we see on Nikro units in Fort Lauderdale homes where the AC runs ten or eleven months a year and interior air stays dry inside the unit even when outdoor humidity is brutal.
- Leaks where the duct meets the Nikro intake port. Nikro machines use a specific intake diameter, and when a previous installer adapted it with tape or a clamp that did not match, the joint fails. We cut the adapter out, use the correct collar size for the unit, and seal with duct mastic that stays flexible in South Florida heat. Tape dries and peels. Mastic does not.
- Vibration noise that was not there when the unit was new. Loose motor mounts on Nikro units let the housing flex, which pulls seams apart over time. You will hear a rattle first, then you will feel air moving where it should not. We tighten the mounts, reseal the housing seams, and the noise drops. A quiet Nikro is a Nikro that’s holding air.
- Filter bypass on older Nikro HEPA housings. When the filter clamping mechanism loses tension, unfiltered air slips around the filter instead of through it. You cannot see this failure by looking at the filter itself. We test with a pressure gauge, then reset the clamp tension and reseal the channel. If you’re running a Nikro in a Fort Lauderdale home with pets or after any water intrusion, this matters more than most owners realize.
Styles & brands we work with




Our Nikro Duct Sealing Process
Every Nikro job we do in Fort Lauderdale follows the same sequence, and it’s the same sequence we would want if the unit sat in our own shop.
- 1
We inspect the unit and the connected ductwork. Before anything gets sealed, we find every leak. We use a pressure test to measure how much air the system is losing and where.
- 2
We write the price down. You get a dollar figure in writing before we touch a tool. It does not move at the door, and it does not grow after we open the housing. This is The Garrison Standard, and we hold ourselves to it.
- 3
We decide on parts with you. For Nikro units still under warranty, we recommend OEM replacement parts to keep that warranty intact. For out-of-warranty units, quality aftermarket gaskets and collars often cost less and perform equally well. We show you both prices and let you choose.
- 4
We seal the leaks properly. Duct sealing mastic goes on every joint, seam, and collar we touched. No tape. No shortcuts. The mastic cures flexible so it survives Fort Lauderdale humidity and the unit’s natural vibration.
- 5
We test the sealed system. We run the Nikro unit and re-check pressure. If the number does not come up to where it should be, we find the remaining leak before we leave.
- 6
We clean up and hand you the paperwork. Your written guarantee starts the day we finish. If the sealing fails inside a year, we come back at no charge. That includes a free second visit, not a pro-rated credit.
What Nikro Duct Sealing Costs in Fort Lauderdale
| Nikro Duct Sealing Scenario | Typical Price Range in Fort Lauderdale |
|---|---|
| Single duct collar replacement and reseal | $185 – $340 |
| Filter housing gasket replacement and reseal | $260 – $475 |
| Full housing seam reseal on a negative-air machine | $450 – $725 |
| Complete Nikro system sealing with pressure testing | $800 – $1,400 |
What moves the price is access, part type, and how many leaks we’re chasing. An out-of-warranty unit with aftermarket gaskets will land on the lower end. A warrantied Nikro requiring OEM parts pushes higher. A system with leaks in three zones costs more than one leak at the unit. Call (754) 354-3644 for an exact quote. Estimates are free, and the number we give you is the number you pay.
See the difference
Before
After
Before
After
Before
AfterWhy Fort Lauderdale Homeowners Call Hollis Air Duct Fort Lauderdale for Nikro Work
We answer our phone with a live person, 24 hours a day, seven days a week. You will not sit through a voicemail loop while your Nikro unit leaks conditioned air into a hot attic. When we schedule the visit, we arrive inside the window we quoted. The technician showing up at your door is background-checked, uniformed, and carries the tools to diagnose a Nikro properly.
Our 365-Day Done Right Promise covers every Nikro sealing job in writing. If the work fails within a year, we come back at no charge. That includes a free second visit. No negotiation, no fine print. We also work on other brands in Fort Lauderdale: Lennox, Trane, and Carrier systems cross our path regularly, and the same crew that seals your Nikro can assess the ducts connected to those units too. Roy Castellanos runs this location, and the philosophy is simple: clean ducts move air. Everything else is just noise.
FAQs
No, proper duct sealing does not void a Nikro warranty, and in most cases our work sits outside the factory-sealed components the warranty covers. The duct connections, collars, and external joints are considered field-installed parts, and sealing them with mastic is standard practice. For units under warranty, we use OEM parts on any internal component we replace, and we document everything so your coverage stays intact.
Most Nikro duct sealing jobs in Fort Lauderdale are done in two to five hours, depending on how many leaks we find and whether any parts need replacing. Pressure testing adds time on the front end, but it prevents us from sealing one leak and missing two more. We schedule a single visit, and we finish before we leave.
Yes, and that is exactly how most of these jobs start. You notice hot air in the utility room, weak suction, or a machine that runs but does not do what it used to. We pressure-test the system, find every leak, and show you what we found before we start sealing. You never pay for a repair you do not understand.
If the motor, blower, and HEPA housing are solid, sealing is usually the right call and costs a fraction of replacement. We will tell you honestly if a Nikro unit has reached the point where further sealing is throwing good money after bad. Roy has looked at enough of these units to know the difference, and he will not recommend replacement unless the numbers support it.
Same-week scheduling is typical for most Nikro duct sealing calls in Fort Lauderdale, and we will give you a firm window when you book. Call (754) 354-3644 and a live person will get you on the schedule. If it is urgent, tell us what is happening and we will find the soonest opening.
Contact Hollis Air Duct Fort Lauderdale
If your Nikro equipment is leaking air, call (754) 354-3644 for a free estimate. We will give you a written price before any work starts, send a background-checked technician inside the quoted window, and stand behind the sealing for a full year. That is the way we have done it since 2004, and it is the way we will do it on your job.
Written by Roy Castellanos, Owner, Hollis Air Duct Fort Lauderdale at Hollis Air Duct Fort Lauderdale, serving Fort Lauderdale and nearby areas.