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.
Before
After
Before
After
Before
AfterGuardsman HVAC Cleaning in San Antonio: What to Know First
We provide independent Guardsman HVAC cleaning in San Antonio for evaporator coils, blower assemblies, condensers, air handlers, and heat exchangers, with written prices delivered before any work starts and a documented photo record of every component cleaned. Most Guardsman jobs in San Antonio run $280-$520 for a full system cleaning depending on accessibility and contamination level, and we schedule within a few business days, not weeks. This page is for homeowners who own a Guardsman-branded HVAC component and want to know what cleaning actually involves, what it costs, and whether their warranty stays intact. Call (726) 600-7155 for a written estimate.
How Guardsman Products Fail - and How We Fix Them
- Guardsman G-Series evaporator coils in San Antonio’s hard-water zones. The aluminum fins on G-Series coils collect mineral scale from municipal water and condensate, reducing heat transfer by 30-40% before the homeowner notices warm air. We descale with manufacturer-approved foaming agents, not acidic cleaners that void warranty, and photograph fin density before and after.
- Guardsman ProGuard blower motors with seized bearings from deferred cleaning. Dust accumulation on the squirrel cage throws the wheel out of balance, stressing the motor mounts. We remove the entire blower assembly, clean the wheel and housing with negative-pressure extraction (a vacuum system that contains debris rather than spreading it), and test amp draw against Guardsman’s published spec before reassembly.
- Guardsman Sentinel condenser coils clogged with live oak pollen and cottonwood fluff. San Antonio’s spring pollen load mats between condenser fins, raising head pressure and shortening compressor life. We use a fin comb and low-pressure foaming wash, never a pressure washer that folds the fins flat. The camera goes in first. Then we talk.
- Guardsman G-Series heat exchangers with soot staining from incomplete combustion. We see this in older G-Series furnaces in Alamo Heights and Terrell Hills where gas pressure was never properly set at install. Cleaning reveals crack patterns that indicate replacement need, and we document with scope photography per Haven Standard Clause 4: Verified Condition.
- Guardsman air handler cabinets with microbial growth on insulation. San Antonio’s humidity, especially in homes near the Medina River basin, degrades the foil-faced liner. We clean and treat with EPA-registered sanitizer, replacing degraded insulation with closed-cell foam where the original is past recovery.
Our Guardsman HVAC Cleaning Process
- 1
Written price delivered first. Haven Standard Clause 1: no exceptions. We inspect access panels, electrical disconnect location, and component condition, then provide a fixed price for the scope before any panel comes off.
- 2
Diagnostic photography. Our technician introduces themselves by name, background-checked and uniformed per Haven Standard Clause 3, and runs a borescope into the plenum (the main distribution box) and first duct run to show you what we’re working with.
- 3
Component-specific cleaning protocol. Guardsman coils receive foaming descale; blower assemblies get full removal and negative-pressure cleaning; condensers get fin comb and foaming wash. We use Rotobrush and Nikro equipment, and Guardsman-compatible treatments where OEM specifies.
- 4
OEM-versus-aftermarket parts decision. If a part needs replacement, we source Guardsman OEM when warranty coverage applies, or quality aftermarket from Honeywell or Aprilaire when it doesn’t, and we put that choice in writing with the price difference noted.
- 5
Performance verification and photo record delivery. We test temperature split, amp draw, and static pressure against manufacturer spec, then deliver your documented photo record showing every component before and after. The 365-Day Done Right Promise attaches in writing.
BeforeAfterWhat Guardsman HVAC Cleaning Costs in San Antonio
| Service | Typical Range | What Moves the Price |
|---|---|---|
| Evaporator coil cleaning | $280-$380 | Accessibility (attic vs. closet), fin corrosion level, refrigerant recovery needed |
| Blower assembly cleaning | $240-$340 | Motor removal required, wheel balance correction, bearing condition |
| Condenser coil cleaning | $180-$260 | Folding damage, pollen mat density, protective cage removal |
| Full system cleaning (coil, blower, condenser) | $420-$520 | System age, contamination severity, additional sanitizing treatment |
| Heat exchanger inspection + cleaning | $320-$420 | Scope access difficulty, crack indication requiring replacement recommendation |
These are whole-system prices, not per-vent teases. We also service Lennox, Trane, and Carrier systems with the same written-price protocol. Call (726) 600-7155 for an exact quote - estimates are free, and we provide a Free Second Opinion on any competitor’s written estimate.
Why San Antonio Homeowners Call CleanRun Air Duct Cleaning San Antonio for Guardsman Work
We’ve cleaned Guardsman components in San Antonio since 2013, from tract homes near Stone Oak where flex duct collapses complicate every job to historic conversions in King William with original plaster and modified plenums. Tomas Reyes, our owner, trained in HVAC systems technology at Queensborough Community College and spent years doing hands-on ductwork across the Northeast before building CleanRun’s San Antonio operation. Every technician works under the H.A.V.E.N. Standard - background-checked, uniformed, identified by name before arrival - and every job concludes with a documented photo record, not a verbal report. The 365-Day Done Right Promise means if the work isn’t right, we make it right, backed in writing, not subject to manager approval. That’s 52,000+ homes served, every one with a written price first and a photo record at the end.
FAQs
No, if performed by a qualified technician using manufacturer-compatible methods. As an independent Guardsman service provider, we use foaming agents and procedures that meet Guardsman’s published maintenance guidelines, and we document our work so you have a record if warranty questions arise. Call (726) 600-7155 if you need a copy of our cleaning protocol for your warranty file.
We source Guardsman OEM through authorized distributors and provide part numbers on your written invoice, which you can verify directly with Guardsman. When aftermarket makes more sense, we use Honeywell, Aprilaire, or Abatement Technologies components and note the substitution in writing with the price difference explained.
Clean first, then decide. We’ve recovered air handlers in Terrell Hills and Alamo Heights that other contractors quoted for replacement, with documented photo records showing the actual condition. If the heat exchanger is cracked or the cabinet is structurally corroded, we’ll say so and show you the photograph. No replacement pressure, just the evidence.
Every 3-5 years for most homes, sooner if you have pets, recent renovation dust, or live near live oak corridors where pollen loads spike. San Antonio’s caliche dust and spring pollen are harder on condenser coils than northern climates, so we inspect those annually as part of our maintenance assessment.
Your documented photo record shows every component before and after, delivered as a standard job record, not an extra. Haven Standard Clause 2: Documented Result. If we cleaned it, you have the photograph. If we didn’t, we don’t charge for it.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning San Antonio at CleanRun Air Duct Cleaning San Antonio, serving San Antonio and nearby areas.