Guardsman Duct Repair & Sealing in Atlanta, GA | Bellows Air Duct & Vent Co. of Atlanta

Guardsman Duct Repair & Sealing in Atlanta: What to Know First

We provide independent Guardsman duct repair and sealing throughout Atlanta, with most jobs completed in a single visit and upfront pricing given before we touch a tool. As an independent Guardsman service provider, we are not affiliated with or authorized by Guardsman, though our technicians have worked on enough of these systems across DeKalb, Fulton, and Gwinnett counties to know where they tend to fail. Typical turnaround is same-day or next-day, and the price we quote by phone is the price on the invoice. This page is for Atlanta homeowners who have a Guardsman air handler or packaged unit and are dealing with duct leakage, collapsed flex runs, or metal seams that have opened up in the attic. Call us at (855) 305-5564 for a free estimate.

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How Guardsman Products Fail - and How We Fix Them

• Guardsman G-Series packaged units and sagging flex duct connections. The G-Series 2.5-ton and 3-ton packaged units we see in 1990s-era Atlanta ranch homes were often installed with 25-foot flex duct runs that droop between trusses after two decades of attic heat. The sag creates a low spot where condensation pools, and the inner liner separates from the insulation jacket. We cut back to solid metal collar, replace the compromised flex with a properly supported run using galvanized hanging strap at 4-foot intervals, and seal with mastic, not tape alone.
• Guardsman H-Series air handlers and leaking plenum seams. The H-Series vertical air handlers common in Buckhead and Virginia Highland basements have galvanized plenums that expand and contract through Atlanta’s humid summers and dry heating seasons. The factory spot-welds along the supply plenum crack after 15 to 20 years. We disassemble the plenum, re-seam with a Pittsburgh lock and apply two coats of water-based mastic, then pressure-test before we leave.
• Guardsman R-Series rooftop units and deteriorated curb gaskets. The R-Series 4-ton and 5-ton rooftops on low-rise commercial buildings and some larger Decatur and Druid Hills homes sit on wood curbs that settle unevenly. The neoprene gasket compresses, and Atlanta’s driving rains blow directly into the duct system. We level the curb, replace the gasket with closed-cell foam rated for UV exposure, and re-seal the transition with sheet metal screws and mastic.
• Guardsman M-Series modular units and failed internal duct liner. The M-Series was marketed to builders for multi-zone applications, and we find them in 2000s-era subdivisions around Alpharetta and Johns Creek. The fiberglass internal liner delaminates and sheds particles into the airstream. We remove the liner mechanically, clean the metal shell with HEPA-contained vacuums, and apply a new coating of closed-cell insulation that meets current Atlanta mechanical code for duct liner in conditioned air streams.
• Guardsman P-Series heat pumps and refrigerant line abrasion through flex duct. The P-Series outdoor units in tight crawl spaces, especially in older Grant Park and East Atlanta bungalows, have suction lines that vibrate against the flex duct return. The copper line wears a hole through the duct wall, creating a return leak that pulls crawl space air into the system. We reroute the line with proper isolation, patch or replace the damaged duct section, and seal all connections with mastic and mesh reinforcement.

Our Guardsman Duct Repair & Sealing Process

1. 1
   Call and schedule. A live person answers, 24 hours a day. We ask about the Guardsman model if you know it, the symptoms, and the home’s age and neighborhood. We give you a ballpark range before we dispatch.
2. 2
   Camera inspection on arrival. Our technician photographs the full duct system with a borescope, looking for the specific failure patterns we’ve learned to associate with each Guardsman series. You see what we see on the tablet.
3. 3
   Diagnosis and parts decision. We determine whether OEM Guardsman sheet metal components are still available, or if a quality aftermarket fabrication from our sheet metal shop will perform as well or better. We explain the trade-off and the price difference before proceeding.
4. 4
   Repair and seal. We complete the duct repair, seal all joints with mastic and fiberglass mesh, and support flex runs to prevent future sag. No duct tape as a primary sealant, ever.
5. 5
   Pressure test and documentation. We run a duct blaster or smoke test to verify sealed performance, then show you the after photos next to the before photos. The 90-Day Done Right Promise is stamped on your invoice.
6. 6
   Cleanup and final walkthrough. We leave the attic or crawl space as we found it, explain what we did in plain terms at your kitchen table, and confirm the price matches the quote.

What Guardsman Duct Repair & Sealing Costs in Atlanta

What moves the price: accessibility of the ductwork, extent of damage found during inspection, whether OEM Guardsman parts are still in production, and whether we need to coordinate with an HVAC contractor for refrigerant work. We apply our standing $50 off any repair over $250, and seniors and veterans receive a permanent 5% discount. Call (855) 305-5564 for an exact quote, estimates are free.

Why Atlanta Homeowners Call Bellows Air Duct & Vent Co. of Atlanta for Guardsman Work

We’ve been crawling through Atlanta attics since 1984, and we’ve learned that Guardsman systems have their own personality, same as Lennox, Trane, or Carrier. Our technicians carry the patterns in their heads, not just a manual. The 90-Day Done Right Promise means if a seal opens or a support fails, we come back, no paperwork, no arguing. Most jobs finish in one visit because our trucks are stocked with common Guardsman transition sizes and mastic supplies. Calls reach a live person at any hour, and our background-checked, uniformed technicians answer to that same office, not an app. Clean ducts do quiet work, and we stand behind ours.

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