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.
Guardsman Register & Grille Cleaning: The Marietta Owner’s Guide
If you’ve got Guardsman registers and grilles throughout your Marietta home, cleaning them properly means more than wiping the faceplate with a rag. We stock Guardsman-compatible replacement registers and grilles on our trucks, and a full-home register and grille cleaning with replacement of damaged units typically runs between $180 and $420 in Marietta, depending on how many you have and their condition. Most owners discover this work needs doing the same way: a register that won’t sit flush anymore, paint flaking off after one too many aggressive cleanings, or a grille that’s bent from years of being kicked by a vacuum. The good news is this is a same-visit job when we’re already out for a duct cleaning, and we carry the common sizes so there’s no second trip.
Here’s the part most people miss: your register and grille are the only part of your HVAC system you actually touch every day. When they’re corroded, sticky, or misshapen, they’re not just ugly. They restrict airflow, whistle when the system runs, and let conditioned air leak into wall cavities instead of your living space. In Marietta’s humid summers, that’s money walking out the door.
Which Guardsman Models This Applies To
Guardsman registers and grilles come in a few distinct lines, and the compatibility gotcha most Marietta homeowners run into is the stamped-face versus bar-style distinction. The stamped-face Guardsman units are one-piece steel with fixed louvers, common in homes built from the 1980s through the early 2000s and often found in East Cobb ranches and split-levels. The bar-style units use adjustable curved blades and come in two mounting types: flush-mount (screws hidden behind the face) and surface-mount (visible screw holes at each end). These are not interchangeable without modifying the opening.
The second gotcha: Guardsman’s wall and ceiling registers use a different depth collar than their floor registers. A floor register has a shallow boot collar, usually 3/4 inch, because it sits in flooring. Wall and ceiling registers have deeper collars, typically 1 3/4 to 2 inches, to seat into drywall. Buy the wrong collar depth and the register either won’t sit flush or falls out of the opening entirely. We measure every opening before we quote, because we’ve seen too many homeowners order online, get the wrong collar depth, and end up with a register that rattles every time the blower kicks on.
On OEM versus aftermarket: Guardsman’s OEM registers are solid, powder-coated steel that holds up well. Quality aftermarket equivalents from brands like Accord and Shoemaker match the common 4×10, 4×12, 6×10, and 6×12 floor sizes and the 10×6, 12×6, and 14×6 wall sizes, often at 30-40% less than OEM. For most Marietta homes, aftermarket steel is the sensible pick. The only time we recommend sticking with OEM Guardsman is when you’re matching an unusual size or a specific finish on visible registers in a living room or kitchen.
Styles & brands we work with
Signs Your Guardsman Register & Grille Cleaning Is Failing
- The register won’t stay in place. The friction fit between the register and the boot collar has worn down, or the sheet metal screws have stripped the drywall. This lets air escape around the frame instead of through the louvers, and the register rattles every time the system cycles on.
- Visible rust or corrosion on the face or louvers. Marietta’s humidity is relentless, especially in crawlspace-adjacent floor registers. Once the powder coat is scratched and moisture gets to bare steel, rust follows within a season or two. Rust doesn’t just look bad; the flaking particles get pulled into your ductwork and blown through the house.
- The louvers won’t move or are frozen in one position. Dust, cooking grease, and humidity combine into a gummy film that seizes the adjustment mechanism. When you can’t direct airflow anymore, you’re heating or cooling space you don’t use.
- Paint is flaking or peeling in sheets. This usually happens after repeated cleanings with harsh chemicals or abrasive scrub pads. Once the coating fails, the steel underneath is exposed, and rust follows quickly if you don’t replace the unit.
- You hear a whistle or high-pitched whine when the system runs. The register is partially blocked with caked dust at the louver edges, forcing air through a smaller opening at higher velocity. It’s telling you the register needs a proper cleaning, not just a surface wipe.
Replacement Cost & What’s Included
A full register and grille cleaning plus replacement of damaged units in a typical Marietta home falls between $180 and $420. The range exists because homes vary: a 1,200-square-foot condo near the Square might have 8 to 10 registers, while a 3,500-square-foot East Cobb house can have 18 to 22. Here’s how the numbers break down:
- Register and grille cleaning (per unit, including removal, degreasing, and reinstallation): $12 to $18
- Standard 4×10 or 4×12 floor register replacement (steel, powder-coated): $18 to $32 installed
- Larger 6×10 or 6×12 floor register replacement: $24 to $40 installed
- Wall or ceiling grille replacement (10×6, 12×6, 14×6): $22 to $45 installed
- Unusual sizes or custom finishes: priced per unit after we measure
The written quote you get from us before we start includes the parts, the labor, the cleanup, and the guarantee. There’s no per-register upsell waiting at the door. We price the whole job, you approve it, and that number doesn’t move. Every register we install is backed by our 365-Day Done Right Promise in writing: if a register fails or a grille doesn’t seat properly within the guarantee period, we’re back out to fix it at no charge.
See the difference
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After
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AfterDIY or Call Us?
Register and grille cleaning is one of the few HVAC-adjacent tasks where we’ll actually hand you the DIY win where it’s earned. You can safely vacuum the register face, wipe it down with a damp cloth and mild dish soap, and check for loose screws. If the register is just dusty, you don’t need us. That’s a Saturday morning job and your mother would be proud.
Where DIY goes wrong is when the register is corroded, bent, or the collar depth is wrong for the opening. Ordering the wrong size online means return shipping, another week of waiting, and a register that still doesn’t fit. We see it weekly. If you’re replacing more than two or three units, or if you’re already having your ducts cleaned, we’re already on-site with the parts and the measurements. Call (762) 533-6494 and we’ll give you a straight answer on what you actually need, whether you end up hiring us or not.
FAQs
In a Marietta home, expect 10 to 15 years from steel Guardsman registers before the powder coat starts failing and rust becomes a real risk. Floor registers in crawlspace homes trend toward the shorter end because of the constant humidity exposure from below. Clean them gently with mild soap and water only, and don’t use bleach-based sprays, which accelerate coating failure. If yours are at the 12-year mark and showing rust spots, replacement is cheaper than trying to salvage them. Call (762) 533-6494 and we’ll tell you honestly whether yours are worth saving.
Generally no. Once the steel is bent, the louvers won’t align properly, and once rust is visible on the face, the corrosion beneath the coating is worse than it looks. We can sometimes refurbish a register with surface dirt or light grime, but structural damage means replacement. The exception is if only a screw hole is stripped out; we can sometimes re-seat with a larger screw and save the unit. We’ll tell you which path makes sense before any money changes hands.
For a typical Marietta home with 12 to 18 registers, the full job takes 60 to 90 minutes as a standalone service. When we’re already doing a full air duct cleaning, register replacement adds very little time because the registers are already off for the main job. We quote the time window when you book, and we show up inside it because that’s the Kingswell Way: say the price, show up in the window we gave, leave the place cleaner, put the guarantee in writing, come back if it fails.
Yes. Our trucks carry the common Guardsman floor sizes (4×10, 4×12, 6×10, 6×12) and wall/ceiling grille sizes (10×6, 12×6, 14×6) in white and brown finishes. We also keep compatible steel units that fit Guardsman openings, which matters if you want a different louver style or a heavier-duty option. We service Guardsman alongside other major brands like Lennox, Trane, and Carrier, so if your house has a mix of equipment, we can handle the whole job in one visit. Unusual sizes get ordered and installed on a follow-up, and we’ll quote that before you commit.
Kestrel Air Duct Marietta is an independent service provider and is not affiliated with Guardsman.
Ready to Get Your Registers Straight?
If your Guardsman registers are rusted, rattling, or just disgusting every time you look down, call (762) 533-6494. We’ll answer in person, talk through what you’re seeing, and give you a real price range before we ever step foot in your house. No pressure, no bait-and-switch, just the written number, the arrival window, and the work done right. Clean ducts, straight answers, price up front – that’s the whole deal.
Written by Dale Whitmore, Owner, Kestrel Air Duct Marietta at Kestrel Air Duct Marietta, serving Marietta and nearby areas.