Guardsman Duct Sealing Nationwide

Guardsman Duct Sealing in Sandy Springs: What to Know First

We seal Guardsman ductwork in Sandy Springs using mastic and professional-grade tape applied to the right joints, with most jobs finished in a single visit that takes three to five hours depending on system size. A full Guardsman duct sealing job in Sandy Springs typically runs $650 to $1,450, written down before we touch anything. This page is for Guardsman owners who feel air escaping into attics and crawl spaces and want a straight answer on what it costs and how we fix it. Call (229) 489-7780 for a free estimate.

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How Guardsman Products Fail – and How We Fix Them

Guardsman makes solid filtration media, but the ductwork connected to it ages like everything else in a Georgia attic. Here’s what we see on Guardsman jobs across Sandy Springs:

• Plenum-to-branch collar separation on Guardsman AirCare media cabinets. The media cabinet sits between the return and the supply plenum. Over years of heating and cooling cycles, the sheet metal collars where branch ducts tie in work loose. We see this most on split-level homes near Hammond Park where systems run hard from May through September. The fix is re-seating the collar, driving new mechanical fasteners, and sealing the seam with mastic rated for galvanized metal.
• Return-side leakage upstream of Guardsman MERV 11 and MERV 13 filters. A high-MERV filter adds resistance, and that back-pressure finds every loose return joint. Owners notice dust accumulating faster than it should because the system is pulling attic air around the filter, not through it. We seal the return side first on any Guardsman job because that’s where the leakage costs you the most.
• Supply boot failures at the floor register. Sandy Springs homes built in the 1970s and 1980s often have boots that were never sealed to the subfloor. The metal boot and the drywall or wood around it separate, and conditioned air blows into the wall cavity instead of the room. We pull the register, seal the boot-to-floor gap, and re-secure the boot.
• Fabric-to-metal transitions on Guardsman flexible duct runs. The inner liner tears where it meets the takeoff collar, especially in attics that hit 130 degrees in a Sandy Springs summer. The outer jacket looks fine, so owners don’t see it. We find it with a duct leakage test, then repair or replace the affected section and seal the connection correctly.
• Guardsman Whole-House Air Cleaner cabinet seams leaking. The cabinet itself is well-built, but the seams where it was installed into existing ductwork often were never sealed. Whoever put it in connected it and walked away. We seal those seams so every cubic foot of air actually passes through the filtration media instead of around it.

Our Guardsman Duct Sealing Process

Here’s how a Guardsman job runs from the first call to the last wipe-down:

1. 1
   Call and scheduling. A live person answers at (229) 489-7780 and gets you on the schedule. We arrive inside the quoted window.
2. 2
   Walkthrough and diagnostic. We inspect the Guardsman equipment, identify the sealing points, and run a duct leakage test if you want hard numbers on how much air is escaping.
3. 3
   Written price. We hand you a price for the whole job before any work starts. That number does not move.
4. 4
   The sealing work. We seal every accessible joint and seam: plenum connections, branch collars, boots, and filter cabinet transitions. We use mastic as the primary sealant because it flexes with the metal and does not dry out like cheaper alternatives.
5. 5
   Retest and cleanup. If we ran a leakage test at the start, we run it again to show the improvement in CFM lost. Then we clean the work area and leave it the way we found it.
6. 6
   365-Day Done Right Promise. Every Guardsman duct sealing job is covered in writing for a full year. If a sealed joint fails, we return and re-seal it at no charge.

What Guardsman Duct Sealing Costs in Sandy Springs

Here’s what we quote on Guardsman work in this market:

• Return-side sealing only: $350 to $550. This covers the return plenum, filter cabinet seams, and accessible return duct joints.
• Supply-side sealing only: $500 to $800. Boots, branch collars, and supply plenum connections.
• Full system sealing, both sides: $650 to $1,450. Every accessible joint from return grille to supply register, plus a duct leakage test before and after.

What moves the price: crawl space access versus attic access, how many supply runs your system has, and whether any flex sections need replacement rather than re-sealing. The price we write down is the price you pay. Call (229) 489-7780 and we’ll come out, look at the system, and hand you a number.

Why Sandy Springs Homeowners Call Hollis Air Duct Sandy Springs for Guardsman Work

We’ve been sealing ducts since 2004, and we’ve worked on enough Guardsman installations in Sandy Springs to know where they leak and why. Our technicians are background-checked and uniformed, and they follow The Garrison Code on every job: arrive inside the window, price it in writing before work starts, do the job by the book, and leave the site clean. The 365-Day Done Right Promise backs the work in writing, including a free second visit if a seal fails. And if your system has equipment from Lennox, Trane, or Carrier mixed in with the Guardsman filtration, we service those brands too, so one call covers the whole system. Roy Castellanos and the crew know the older split-levels near Hammond Park and the newer construction off Roswell Road equally well, because we’ve worked both for years.

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