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 Air Quality & Sanitizing in Plano: What to Know First
We provide independent Guardsman air quality and sanitizing service in Plano, typically completing scheduled jobs within one business day of your call. Every Guardsman system we work on receives a written price before any work starts, a documented photo record of every duct run, and our 365-Day Done Right Promise in writing. Most Plano homeowners with Guardsman UV light systems, whole-home air purifiers, or sanitizing equipment fall in the $340-$780 range for standard service and component replacement. This page is for Guardsman owners in Plano who want to know what actually goes wrong with their equipment, what it costs to fix it right, and how to verify the work was done. Call (469) 452-7766 for a free estimate.
How Guardsman Products Fail - and How We Fix Them
- Guardsman GUV-200 and GUV-300 series UV lights lose output at the 9,000-hour mark. The 254nm lamp degrades faster in Plano’s hard water areas because mineral scale on the quartz sleeve blocks UV-C transmission before the bulb itself fails. We pull the sleeve, photograph the scale buildup, and replace with OEM-spec 17-inch lamps or verified aftermarket equivalents from Abatement Technologies - never a generic UV stick that won’t seat in the Guardsman mounting bracket.
- Guardsman GAP-500 whole-home air purifiers develop ionizer wire corrosion in summer. Plano’s humidity spikes from May through September oxidize the tungsten wire faster than the 24-month replacement interval suggests. The symptom is a faint ozone smell at registers, not the “clean” ionizer notice on the LED. We meter the output, replace the wire assembly, and clean the collector cell with Nikro-spec solution - the same process we document in the photo record.
- Guardsman GAS-100 sanitizing injectors clog at the solenoid when homeowners run them on untreated tap water. The injector needle is spec’d for distilled or RO water; Plano’s 7.5-8.5 pH and 180+ ppm hardness precipitate calcium at the 0.004-inch orifice. We descale with a controlled citric flush, replace the solenoid if the coil resistance reads above 28 ohms, and note the water source in your job record so the next tech knows what caused it.
- Guardsman GUV-400 dual-lamp systems suffer ballast failure after power events. Plano’s spring storm season delivers the voltage spikes that cook the GUV-400’s magnetic ballast, which Guardsman phased out in 2019 but still supports under warranty. We test with a manometer - Tomas keeps his calibrated collection for exactly this - and install electronic ballast retrofits where the housing allows, or document why the full housing needs replacement.
- Guardsman GAP-800 HEPA bypass units leak unfiltered air at the gasket seam. The foam gasket compresses permanently after three Texas summers; the tell is dust accumulation on the downstream side of what should be a sealed HEPA stage. We source the correct 3/8-inch closed-cell gasket, torque the housing to spec, and pressure-test the seal before we sign off.
Our Guardsman Air Quality & Sanitizing Process
- 1
Photo-first inspection. We access the plenum (the main distribution box) and photograph every duct run with a borescope before touching a tool. Tomas started this habit in 2013; it’s now Haven Standard Clause 1.
- 2
Written price delivery. We present the exact scope and dollar figure before work begins. No “call for a quote” - the price is in your hand or we don’t start.
- 3
OEM or verified-equivalent parts selection. For Guardsman systems, we stock OEM lamps, sleeves, and gaskets. When OEM is back-ordered - the GUV-300 lamp was a 6-week wait in early 2024 - we use Abatement Technologies or Honeywell cross-references that match the spectral output and physical dimensions, documented in writing.
- 4
Service execution with running documentation. Every step is photographed: the old part, the installed replacement, the meter reading, the sealed housing. You receive these as your Documented Photo Record.
- 5
Post-service verification and warranty. We test airflow, measure UV output with a UVC radiometer, and verify ionizer current draw. The 365-Day Done Right Promise goes in writing before we leave.
- 6
Cleanup and record delivery. The photo record, written scope, and warranty documents are delivered as standard - not upon request, not for an extra fee.
BeforeAfterWhat Guardsman Air Quality & Sanitizing Costs in Plano
| Service | Typical Range | What Moves the Price |
|---|---|---|
| UV lamp replacement (single, GUV-200/300) | $340-$480 | Quartz sleeve condition; access difficulty in attic plenum |
| UV lamp replacement (dual, GUV-400) | $520-$680 | Ballast test result; electronic retrofit vs. full housing |
| Ionizer wire and cell service (GAP-500) | $380-$560 | Corrosion extent; collector cell rebuild vs. replace |
| Sanitizing injector descale/rebuild (GAS-100) | $290-$440 | Solenoid ohms reading; water source modification needed |
| HEPA gasket replacement and seal test (GAP-800) | $420-$620 | Downstream contamination extent; additional duct cleaning |
| New air purifier installation (any Guardsman series) | $1,200-$2,400 | Duct modification; electrical run length; Plano permit if required |
These are whole-system prices, not per-vent teasers. The price we write is the price you pay. Call (469) 452-7766 for an exact quote - estimates are free, and we provide a Free Second Opinion on any competitor’s written estimate.
Why Plano Homeowners Call CleanRun Air Duct Cleaning Plano for Guardsman Work
We’ve worked Guardsman equipment in Plano since 2013, including the older ranch-style homes near the Shops at Legacy where original flex duct from the early 1990s still complicates access. Our techs are background-checked and uniformed under Haven Standard Clause 3: Verified Crews. We also service Lennox, Trane, and Carrier systems, which matters when your home has mixed-brand components and the failure is at the interface, not the label. Every job carries the 365-Day Done Right Promise in writing, not as a policy subject to manager approval. Tomas Reyes built this company on one habit: show the photo first, talk second. The evidence is in your hands before we ask for anything.
FAQs
No. As an independent Guardsman service provider, we use OEM-spec or manufacturer-cross-referenced parts and document every step, which satisfies warranty requirements for service work. We are not affiliated with or authorized by Guardsman, and we never imply otherwise. If a part is under factory warranty, we flag it in your job record so you can pursue that channel separately. Call (469) 452-7766 and we’ll review your serial number.
We photograph the old lamp’s serial number, the new lamp’s serial number, and the UVC radiometer reading at 12 inches - all in your Documented Photo Record. A wiped lamp reads zero micro-watts; a new lamp reads 40-plus. The photo record is standard on every visit, not an add-on.
That figure covers a fogger rental and a walk-through, not access to your duct runs, not parts replacement, and not documentation. We quote the actual scope: pull the plenum, inspect every run, replace what failed, test what remains, and prove it with photos. Call (469) 452-7766 for a written comparison.
If the housing is intact and the ballast tests within spec, lamp and sleeve replacement is the cost-effective path - typically under $500. If the housing is cracked or the ballast is out of production (GUV-200 magnetic ballasts were discontinued in 2021), we document why replacement makes sense and quote both paths in writing. No default to the more expensive option.
UV lamps every 9,000 operating hours (roughly 12-14 months in a typical Plano home running the fan continuously). Ionizer wires every 18-24 months, sooner if you smell ozone. HEPA gaskets every 36 months, or when the pressure drop across the filter rises 20% above baseline. We note your intervals in the job record and call when you’re due - no subscription, no automatic billing.
Ready to see what’s actually inside your Guardsman system? Call (469) 452-7766 for a free estimate. We’ll bring the borescope, the written price, and the camera.
Written by Tomas Reyes, Owner, CleanRun Air Duct Cleaning Plano at CleanRun Air Duct Cleaning Plano, serving Plano and nearby areas.