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 Duct Sealing Across Covington
Duct sealing in Covington typically runs $400 – $900 for a whole-house system, and most jobs are completed in a single visit with the price written down before we start. We’re the Duct Sealing crew that serves Covington from our Atlanta dispatch office, with background-checked, uniformed technicians who arrive inside the quoted window and leave the site clean. Call (361) 326-5060 for a free estimate.
Covington’s rapid 1990s – 2000s suburban build-out left thousands of homes with flex duct buried under attic insulation, now 20-plus years old and never properly sealed. Many of these homes back onto greenbelts or the Cedar River trail, so cottonwood fluff and maple seeds get pulled into return grilles and blower wheels faster than in denser King County cities. We know the local housing stock because we’ve worked in it, from the tract homes near Covington Square to the neighborhoods off Highway 516.
Why Hollis Air Duct Cleaning Is Covington’s Preferred Duct Sealing Company
Hollis Air Duct Cleaning has been part of the Garrison Partners family since 2004, and our Covington customers get the same standard: written price before work starts, 365-Day Done Right Promise backed in writing, and technicians who follow The Garrison Code on every job. Roy Castellanos leads our operation, and our crews serve Covington with the discipline that comes from two decades in the trade.
Our phones are answered by a live person 24 hours a day, seven days a week. No voicemail loops, no callback queues, no waiting until Monday for scheduling. When you call (361) 326-5060, you speak to someone who can book your appointment and confirm your written estimate.
We arrive uniformed and background-checked, with professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies. The price we quote is the price you pay. If our 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 Sealing in Covington
HVAC Duct Sealing in Covington means finding and closing the gaps, separations, and leaks in your forced-air system’s ductwork so conditioned air reaches your rooms instead of your attic or crawl space. Most Covington homes built in the 1990s and 2000s use flexible duct buried under blown insulation, and after two decades the joints separate, the tape fails, and rodents chew access holes that bleed pressure and pull in debris. A typical whole-house duct sealing job in Covington runs $400 – $900 depending on system size and accessibility, with attic work sometimes adding labor due to tight clearance.
How We Seal Flex Duct Joints
We inspect with a camera first, then apply mastic sealant and reinforcing mesh to every joint and penetration. Mastic stays flexible for years, unlike foil tape that dries and peels. For separated runs, we reconnect with mechanical fasteners before sealing, so the repair holds.
Negative-Air Containment During Sealing
Our Nikro negative-air machines keep debris contained while we work, exhausting particulates outside instead of recirculating them through your home. We pair this with HEPA filtration so the air you breathe during the job is cleaner than when we arrived.
Duct Repair in Covington
Duct Repair in Covington addresses the physical damage that sealing alone won’t fix: crushed flex duct, chewed sections, disconnected returns, and corroded metal fittings. The same 1990s – 2000s housing stock that needs sealing often needs repair first, because rodent activity in attics and the weight of settled insulation have deformed or separated the original runs. A typical duct repair in Covington runs $250 – $650 per section, with whole-system replacement reaching $1,200 – $2,500 if the flex duct is brittle or extensively damaged. We always inspect before quoting, and the price is written down before we touch anything.
Attic Access Challenges in Older Tract Homes
Covington’s attic hatches are often small, and blown insulation hides the duct runs. We map the system before disturbing anything, then use the smallest necessary access points to minimize insulation displacement. Site left clean is part of The Garrison Standard.
When Repair Beats Replacement
Localized damage, one or two separated joints, or a single chewed section usually merits repair. If the flex duct is brittle throughout, cracked at every bend, or contaminated with rodent waste, we recommend replacement and explain why before you decide.
Trusted Brands We Service in Covington
We carry parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies, so Covington homeowners don’t wait for special orders. Our Rotobrush rotary brush systems and Nikro negative-air machines are the same tools commercial crews use in hospitals and schools, and we maintain them to manufacturer spec. When your system needs a new filter housing, a sealed return box, or an upgraded media cabinet, we stock it or source it fast. No chasing parts across King County.
Common Duct Sealing Problems We See in Covington Homes
- Flex duct joints separated by rodent activity. Covington’s greenbelt-proximate neighborhoods, especially near the Cedar River trail, see more squirrel and roof rat traffic than urban areas. They chew entry holes at joint seams, and the separated duct bleeds heated or cooled air into attic insulation while pulling in fiberglass and dust.
- Cottonwood fluff and maple seed clogging return grilles. The seasonal drift from riverside trees is relentless in Covington. It mats against filters, bypasses them when they’re overloaded, and packs into blower wheels and return ductwork, reducing airflow and forcing the HVAC system to run longer.
- Mold growth in idle ductwork during humid seasons. Covington’s fall and spring humidity sits in duct runs when systems aren’t running regularly. Sealing leaks helps, but active mold requires source removal and antimicrobial treatment first. Sealing over mold traps moisture and makes it worse.
- Shared dryer vent stacks in multi-unit buildings. Covington has townhome and condo developments with vertical dryer ducts that accumulate lint deep in the run. This creates a fire hazard, reduces drying efficiency, and can backdraft into adjacent units. Proper sealing and cleaning of these shared systems requires coordination and the right negative-air equipment.
Pricing for Duct Sealing in Covington, GA
Whole-house duct sealing in Covington typically costs $400 – $900, with most single-family homes falling in the $550 – $750 range. Duct repair runs $250 – $650 per damaged section. What moves the price: system size (more ducts, more labor), attic accessibility (tight spaces take longer), and whether we find damage that needs repair before sealing can be effective.
We do not quote per-vent prices. That model invites bait-and-switch, and we don’t play it. One flat price per system, agreed in writing before work starts. The estimate is free, and it includes a camera inspection so you see what we see. Call (361) 326-5060 to schedule.
We Also Serve Cities Near Covington
Our crews work throughout the metro area, including Duct Sealing in Covington and surrounding communities: McDonough, Social Circle, Conyers, and Locust Grove. Scheduling is coordinated from our Atlanta office, with local technicians dispatched to your area.
Serving Covington, GA - Our Local Coverage Area
We’re based in the Covington 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 Duct Sealing in Covington
Covington’s location in the Cedar River valley and its abundance of greenbelt-backed homes expose HVAC systems to seasonal seed drift that denser King County cities don’t experience. Cottonwood fluff and maple seeds enter through fresh-air intakes, gaps in return plenums, and poorly sealed attic penetrations, then mat against filters and pack into blower wheels. We see this most often in homes near the Cedar River trail and in neighborhoods with mature deciduous tree lines. Call (361) 326-5060 for an inspection and estimate.
No, duct sealing alone will not fix active mold growth. Covington’s humid fall and spring seasons promote mold in idle ductwork, and sealing over it traps moisture and worsens the problem. The proper sequence is source removal, antimicrobial treatment, then sealing to prevent recontamination. We inspect for mold during our camera survey and explain what we find before quoting any work. Call (361) 326-5060 for an honest assessment.
Sealing the joints and penetrations in shared dryer vent stacks prevents lint leakage into wall cavities and adjacent units, and it restores proper airflow so dryers exhaust efficiently. For single-family homes, we also offer our Dryer Vent Cleaning in Covington to remove built-up lint and restore safe operation. In Covington’s multi-unit buildings, we coordinate with property management to access the full vertical run, clean with negative-air equipment, and seal with fire-rated materials. This reduces fire hazard and eliminates the backdraft odors that residents often report. Call (361) 326-5060 to discuss your building’s setup.
NADCA, the National Air Duct Cleaners Association, sets the inspection, cleaning, and restoration protocols that we follow on every Covington job. For duct sealing, this means camera documentation before and after, containment of work areas with negative air, and proper materials (mastic and mesh, not duct tape) on every joint. Our equipment from Abatement Technologies and Nikro meets NADCA specifications for commercial-grade containment and filtration. Call (361) 326-5060 to ask about our process.
Most Covington homes benefit from duct inspection every three to five years, with sealing performed when leaks are found. Homes with the original 1990s – 2000s flex duct, greenbelt proximity with heavy debris load, or previous rodent activity may need attention sooner. We don’t sell maintenance contracts or push unnecessary visits; we inspect, document what we find, and let you decide. Call (361) 326-5060 for a free evaluation.
We recently sealed the supply and return ducts in a 1998-built home off the Cedar River trail in the Covington area. The homeowner reported weak airflow and visible dust; our camera inspection revealed flex duct joints separated by rodent activity and clogged with cottonwood fluff. We used negative pressure and HEPA filtration to remove debris, then sealed the leaks with mastic and mesh, restoring proper airflow and reducing dust. The 365-Day Done Right Promise covers that work in writing.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Covington and the greater Atlanta metro since 2004.