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.
Honeywell Duct Sealing in Sandy Springs: What to Know First
Honeywell duct sealing in Sandy Springs typically runs between $450 and $1,400 depending on how much of the ductwork needs attention, and most jobs are completed in a single day. We’re an independent Honeywell service provider, which means we work on Honeywell filtration and duct components without being tied to manufacturer pricing or scripts. The price you get before the work starts is the price you pay when the crew leaves.
This page is for Sandy Springs homeowners who own Honeywell equipment and have noticed rooms that won’t hold temperature, rising utility bills, or dust that keeps coming back no matter how often they clean. If that sounds familiar, call us at (229) 489-7780 and we’ll walk through what’s happening before anyone schedules a visit.
How Honeywell Products Fail – and How We Fix Them
Honeywell makes dependable equipment, but in Sandy Springs the combination of humidity, pollen, and years of thermal cycling exposes specific weak points. Here’s what we see on service calls:
- Honeywell TrueCLEAN and TrueFRESH bypass units pulling loose at the plenum collar. The metal-to-flex connection at the plenum relies on a crimped collar and foil tape. After eight to ten Sandy Springs summers, the adhesive gives out and conditioned air leaks into the attic or crawl space before it ever reaches a register. We pull the collar, clean the mating surface, and reseal with duct mastic rated for high-temperature plenums, then retape over the mastic once it skins.
- Honeywell FC-Series media cabinets with warped access doors. The FC100, FC200, and FC40 filter cabinets live in the return plenum. The door gasket compresses over time, especially in homes near the Chattahoochee where humidity runs higher. A warped door pulls negative pressure and drags unfiltered attic air past the filter. We straighten or replace the door, install a fresh gasket, and verify the seal with a smoke pencil before we call the job done.
- Flex duct run failures downstream of Honeywell zoning dampers. Honeywell TrueZONE systems use rectangular dampers that cycle open and shut dozens of times a day. The vibration works the flex duct connection loose at the damper collar. This is one of the most common leaks in Sandy Springs zoned homes, and it’s almost always invisible because it’s buried under insulation. We find it with a duct leakage test, then reseal the collar and reinforce the connection so the next thousand cycles don’t loosen it.
- Honeywell UV air treatment system mounting flanges that crack at the sheet metal screws. The UV100 and UV240 series mount in the supply plenum with self-tapping screws. Over years, the metal expands and contracts with the furnace cycling, and hairline cracks develop around the screw holes. The system still runs, but the plenum leaks around it. We remove the unit, patch the cracks with mastic and mesh, and remount with a backing plate to spread the load.
- Return-side Honeywell electronic air cleaner housings with failed gasket seals. The F300 series has a gasket between the power door and the housing. Once that gasket hardens, which it does faster in attics that hit 130 degrees in August, the unit draws air around the door instead of through the cells. The electric cleaner is working, but only about half the air is actually passing through it. We replace the gasket with a heat-rated material and seal the housing seams while we’re there.
Styles & brands we work with




Our Honeywell Duct Sealing Process
Every Honeywell job follows the same sequence, and you know the price before step one begins.
- 1
Call and schedule. You reach a live person at (229) 489-7780, give us the Honeywell model or a description of the equipment, and we book a window that works. Roy Castellanos and the crew know Sandy Springs well enough to route appointments without wasting your afternoon.
- 2
On-site diagnosis. We walk the system, check the equipment cabinet, inspect accessible duct connections, and run a duct leakage test where it makes sense. You get a straight read on what’s leaking, what’s fine, and what can wait.
- 3
Written price. Before any work starts, you get the number in writing. It covers the agreed scope, and it does not move at the door. If we find something else once we open things up, we stop and talk to you first.
- 4
The sealing work. We use mastic for rigid connections, mastic plus tape for flex collars, and OEM-equivalent gaskets where Honeywell equipment needs them. Parts decisions are made with you: OEM where it matters for fit or warranty, quality aftermarket where the factory part is priced like it’s made of silver and a proven equivalent does the same job.
- 5
Verification. We test the sealed connections with a smoke pencil or leak gauge, confirm airflow at registers, and check the Honeywell unit is running as it should. You see the before-and-after numbers. No mystery.
- 6
Guarantee in your hand. Every sealing job carries the 365-Day Done Right Promise in writing. If a sealed connection fails within a year, we return and fix it at no charge. Including a free second visit. That’s the whole agreement, on paper.
What Honeywell Duct Sealing Costs in Sandy Springs
Honeywell duct sealing jobs in Sandy Springs fall into predictable ranges, and we’d rather you see the numbers here than wonder what the van visit will bring.
- Single connection repair at a Honeywell media cabinet or UV mount: $150 – $300
- Sealing the plenum-to-flex connections for one Honeywell zone or bypass loop: $350 – $700
- Full accessible duct sealing around a Honeywell filtration and zoning setup: $700 – $1,400
What moves the price: how many connections have failed, whether ductwork is accessible or buried, and whether Honeywell cabinet gaskets need replacing alongside the sealing work. We price the whole job in writing before we touch anything. Call (229) 489-7780 for a free estimate on your specific system.
See the difference
Before
After
Before
After
Before
AfterWhy Sandy Springs Homeowners Call Hollis Air Duct Sandy Springs for Honeywell Work
We’ve been pulling debris out of Atlanta-area ductwork since 2004, and Roy Castellanos has spent the better part of two decades on hands-and-knees work in the crawl spaces and attics of Sandy Springs homes, including the older split-levels near Hammond Park where ducts get neglected the longest. That experience means we know which Honeywell components fail in this climate and which ones are fine.
Every job runs on The Garrison Standard: arrive inside the quoted window, price the work in writing before touching anything, do the job by the book, and leave the site clean. The 365-Day Done Right Promise backs every sealed connection for a full year. If it fails, we return at no charge, including the second visit.
And when a Sandy Springs home has a mixed system, which many do, our techs work across Honeywell, Lennox, Trane, and Carrier equipment every week. One crew, one call, no finger-pointing between brands.
FAQs
No. Sealing ductwork downstream or upstream of your Honeywell equipment does not affect the Honeywell manufacturer warranty, as long as the equipment itself is not modified. We use sealing products and methods compatible with Honeywell housings, and if a warranty-related equipment repair is involved, we’ll tell you before we do anything that could touch that coverage.
The most reliable sign is a duct leakage test that shows more than around 20% leakage for an older Sandy Springs system. But the everyday clues are rooms that won’t hold temperature, a utility bill that keeps climbing, dust returning shortly after cleaning, and a Honeywell filter that loads up faster than it used to. If you’re seeing two or more of those, call (229) 489-7780 and we’ll pinpoint it before quoting anything.
Most Honeywell flex collars in Sandy Springs are in the attic or crawl space, so the work happens inside those spaces, not outside the house. We access the connection point, clean it, seal it with mastic, and reinforce with tape. It’s methodical work, but it doesn’t require tearing out drywall unless the duct run is wall-cased and leaking there too.
If the flex duct itself is brittle, torn, or collapsed, sealing the connection won’t fix it, and replacement makes more sense. If the duct is sound but the collar seal has failed, which is the far more common situation we find in Sandy Springs, sealing is the right fix at a fraction of the cost. We’ll show you the condition before you decide, and the quote reflects what’s actually needed.
Most Honeywell sealing jobs are scheduled within a few business days, and once we’re on site the work is typically done the same day. We won’t promise a slot and then no-show. The window we quote is the window we arrive in. Call (229) 489-7780 for the next available appointment and an exact quote.
Clean ducts, straight answers – that’s the whole job.
Get Your Honeywell Duct Sealing Quoted Today
If your Honeywell equipment is working but your ducts are leaking, you’re paying to condition air that never reaches the rooms you live in. Call Hollis Air Duct Sandy Springs at (229) 489-7780 for a free estimate on Honeywell duct sealing. We’ll give you a written price before any work starts, and we’ll stand behind it with the 365-Day Done Right Promise.
Written by Roy Castellanos, Owner, Hollis Air Duct Sandy Springs at Hollis Air Duct Sandy Springs, serving Sandy Springs and nearby areas.