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.
Guardsman HVAC Cleaning in Chicago: What to Know First
We provide independent Guardsman HVAC cleaning in Chicago for evaporator coils, blowers, condensers, air handlers, and heat exchangers, with most jobs completed in a single scheduled visit. Every Guardsman system gets a written price before we touch a panel, and every duct run is photographed before and after. If you own a Guardsman G-Series air handler, a Guardsman Pro coil unit, or any Guardsman-branded component tied to your duct system, we clean it without voiding your factory warranty. Call (708) 683-3974 for a free estimate with a written price delivered on the spot.
How Guardsman Products Fail - and How We Fix Them
- G-Series air handlers with the factory-installed PSC blower motor: These units run at fixed speed, so dust loads on the squirrel cage build unevenly. The imbalance creates vibration that loosens the hub set screw. We remove the blower assembly, clean the wheel with a soft-bristle rotary tool, and torque the set screw to spec. A dirty blower on a G-Series is not a lubrication problem; it is a balance problem.
- Guardsman Pro evaporator coils with the stamped-aluminum fin design: The fin spacing is tighter than on Carrier or Trane equivalents, so Chicago’s summer humidity packs the valleys with a gray paste of skin cells and pollen. Standard foaming cleaner blows the debris deeper. We use a low-pressure, directional rinse from the leaving-air side, working against the airflow path, and we document the pressure drop across the coil before and after.
- Guardsman condenser coils in lakefront properties from Rogers Park to Hyde Park: Salt spray from Lake Michigan accelerates fin corrosion after year three. The factory coating thins at the tube bends first. We clean with a non-alkaline foaming agent, inspect for white oxide at the U-bends, and flag any coil that needs replacement rather than cleaning. A cleaned, corroding coil fails again in six months; we say so in writing.
- Guardsman heat exchangers in the H-Series 80% furnaces: These units use a clamshell design with a crimped seam at the header. The seam traps combustion byproducts if the primary flue is even partially restricted. Our scope camera enters through the burner opening to check for soot bridging at the crimp line. Cleaning the heat exchanger without inspecting the seam is incomplete work; we do not perform incomplete work.
- Guardsman return plenums in two-flats with shared ductwork: The original Guardsman install manuals from 2008-2015 spec’d a 24-gauge galvanized plenum that dents at the filter rack when homeowners force a 2-inch filter into a 1-inch slot. The gap pulls unfiltered air around the filter. We clean the plenum interior, photograph the rack deformation, and note whether the filter bypass has loaded the blower with fine debris. This is common in Logan Square and Avondale buildings where the basement utility room has six feet of headroom and zero forgiveness.
Our Guardsman HVAC Cleaning Process

- 1
System identification and written scope. We record the Guardsman model, serial, and manufacture date. The written scope names every component to be cleaned and every component to be inspected. Haven Standard Clause 1: the price is fixed before work starts.
- 2
Pre-clean photo record. We photograph the interior of every accessible duct run, the coil face, and the blower wheel. Tomas Reyes has a rule: show the photo first. Talk second. If the camera shows clean metal, we say so and adjust the scope.
- 3
Component-specific cleaning. Evaporator coils get directional low-pressure rinse. Blowers get rotary soft-brush cleaning with the wheel removed. Condensers get non-alkaline foam and fin straightening where needed. Heat exchangers get scope inspection before any mechanical cleaning.
- 4
OEM versus quality aftermarket decision. Guardsman OEM parts are available through select distributors in Chicagoland. When an OEM part is back-ordered, we use quality aftermarket equivalents that meet or exceed the original specification, and we document the substitution in writing. We do not guess at compatibility.
- 5
Post-clean testing and photo record. We measure static pressure, verify temperature split, and photograph the cleaned components. The customer receives the photo record as a standard deliverable, not an add-on.
- 6
Written guarantee. The 365-Day Done Right Promise is printed, signed, and left with the customer. If the work is not right, we make it right. This is not a policy subject to manager approval; it is a written contract.
Before
AfterWhat Guardsman HVAC Cleaning Costs in Chicago
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Evaporator coil cleaning | $280 - $420 | Accessibility (attic vs. basement), fin corrosion requiring treatment |
| Blower assembly cleaning | $240 - $360 | Motor removal required, set screw replacement |
| Condenser coil cleaning | $200 - $320 | Fins per inch count, salt corrosion severity |
| Air handler full cleaning | $450 - $680 | Number of components, plenum condition |
| Heat exchanger cleaning with scope inspection | $320 - $480 | Soot load, seam access difficulty |
| Coil treatment (anti-microbial) | $80 - $140 | Applied only after mechanical cleaning is complete |
These are whole-system prices, not per-vent or per-register add-ons that balloon at the door. A Guardsman G-Series air handler in a Lincoln Park basement with clear access lands near the lower end. A Guardsman Pro coil in a cramped Ravenswood attic with fin corrosion lands higher. We put the exact number in writing before we start. Call (708) 683-3974 for a free estimate.
Why Chicago Homeowners Call CleanRun Air Duct Cleaning Chicago for Guardsman Work

We are an independent Guardsman service provider, not a factory-authorized dealer, and we think that matters. Factory-authorized shops have quotas and warranty paperwork that can push replacement over cleaning. We clean what can be cleaned, replace what must be replaced, and document both with photographs.
Our technicians are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. They carry Rotobrush, Nikro, and Abatement Technologies equipment, and they know Guardsman fin spacing, blower hub torque specs, and the Chicago climate realities that affect both. When a Guardsman part is not available, we also service Lennox, Trane, and Carrier systems, so we understand cross-manufacturer compatibility and do not invent solutions.
Since 2013, we have served 52,000 homes with a written price before every job and a documented photo record after. The 365-Day Done Right Promise applies to Guardsman work exactly as it applies to everything else.
FAQs
No, professional cleaning by an independent service provider does not void a Guardsman factory warranty, provided no components are altered or damaged during service. We document our methods and equipment for warranty purposes, and we do not use tools or chemicals that exceed manufacturer specifications. If you have a remaining warranty period, we note it on the written scope before work begins.
The scope camera shows the difference. We photograph the coil face and measure the pressure drop across the fins; a cleanable coil shows debris on intact metal, while a failing coil shows fin corrosion, tube bulging, or refrigerant oil staining. We show you both images and explain the numbers before recommending either service. Call (708) 683-3974 and we will put the diagnosis in writing.
The $79 coupon model typically covers a visual inspection and a shop vacuum at the register. It does not include blower removal, coil rinsing, or pressure testing. We price the full job, photograph the full job, and guarantee the full job. A cheaper quote is not the same scope; we explain the difference in writing under Haven Standard Clause 1.
Every three to five years for most Chicago homes, sooner if you have pets, recent renovation dust, or a home near Lake Michigan where salt air loads the condenser. We inspect systems annually as part of our service record and tell you when cleaning is actually needed rather than selling it on schedule. The camera does not lie.
Yes. Guardsman OEM parts are available through regional distributors in the Chicago area, and we maintain accounts with quality aftermarket suppliers for faster turnaround when OEM is back-ordered. We document any substitution in writing, and we do not install a part we cannot verify meets or exceeds the original specification.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Chicago at CleanRun Air Duct Cleaning Chicago, serving Chicago and nearby areas.




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