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.
Fast, Reliable Air Duct Cleaning Across Sunnyvale
If you’re noticing weak airflow from your vents, dust that returns within days of cleaning, or a musty kick when the HVAC first cycles on, your ductwork is likely overdue. In Sunnyvale, where mid-century ranch and Eichler homes still run their original galvanized steel ductwork beneath slab foundations, these symptoms show up earlier and more severely than in newer construction markets. We’re Hollis Air Duct Cleaning, and our crews serve Sunnyvale from our Dallas-Fort Worth dispatch office with rotary brush systems and negative-air equipment built specifically for the rigid metal ducts and silica infiltration this town’s housing stock demands. Call us at (361) 326-5060 for a free written estimate before any work starts.
Why Hollis Air Duct Cleaning Is Sunnyvale’s Preferred Air Duct Cleaning Company
We’ve been in business since 2004 as part of the Garrison Partners family, and our reputation in Sunnyvale rests on operational specifics, not slogans. Our technicians arrive inside the quoted window, price every job in writing before touching equipment, and leave the site clean. That’s The Garrison Standard, and it’s how we work in the Heritage District, near Collins Road, and throughout the 75182 zip code.
Our response time to Sunnyvale typically runs same-week, with most residential appointments scheduled within three to five days of your call. Phones are answered by a live person 24 hours a day, 7 days a week, no voicemail loops or callback queues.
What separates us from competitors who quote low and invoice high? Our 365-Day Done Right Promise. If the work fails within a year, we return and make it right at no charge, including a free second visit. It’s backed in writing on every job, not negotiated at the door.
We know Sunnyvale’s housing stock intimately. The uninsulated lapped-joint ductwork common in 1950s and 1960s ranches here leaks heavily after decades of seismic settling and dry rot. Our Air Duct Cleaning crews are trained to spot cracked slab penetrations that draw in radon-laced soil gas, a problem that intensified after the 2018 EPA radon zone map update and remains under-addressed by out-of-town outfits unfamiliar with local foundation types.
Commercial Air Duct Cleaning in Sunnyvale
Commercial Air Duct Cleaning in Sunnyvale addresses the accumulated dust, construction debris, and microbial loading that builds up in HVAC systems serving retail spaces, office suites, and multi-tenant buildings along Interstate 20 and the growing commercial corridors near Town East Boulevard. Unlike residential work, commercial duct cleaning here often requires after-hours scheduling to avoid disrupting business operations, and the scope can range from single rooftop units to multi-zone systems with hundreds of linear feet of ductwork. A typical commercial cleaning in Sunnyvale runs $800 – $2,400 depending on system size and contamination level, with larger facilities or those requiring video documentation for insurance or lease compliance at the higher end.
Post-Construction and Renovation Cleanup
Sunnyvale’s remodel boom has left many commercial tenants breathing drywall dust and fiberglass particulate for months after contractors leave. We use Nikro negative-air machines to establish contained work zones, capturing debris before it redistributes through occupied spaces. Every post-construction job includes written before-and-after photo documentation.
Kitchen Exhaust and Grease Duct Systems
Restaurants and food-service operations along the Mesquite border face fire-code inspections that demand clean grease ducts and exhaust plenums. Our rotary brush systems break down hardened grease deposits in rigid metal ductwork, the dominant construction type in Sunnyvale’s older commercial buildings, with written certification provided for fire marshal records.
Air Duct Cleaning Services in Sunnyvale
Air Duct Cleaning Services in Sunnyvale cover the full range of residential and light-commercial HVAC systems, from single-story ranch homes with slab-embedded ductwork to newer townhome developments with flex-duct installations. The core job involves agitating and extracting accumulated dust, debris, and biological contamination from supply ducts, return ducts, and the air handler itself, then sealing access panels and verifying airflow improvement. A typical residential full-system cleaning in Sunnyvale runs $350 – $650 for homes up to 2,500 square feet, with larger homes, heavy contamination, or slab-duct systems requiring specialized rotary equipment at the higher end.
Supply and Return Duct Cleaning
Supply ducts push conditioned air into your rooms; return ducts pull it back for reconditioning. In Sunnyvale’s Eichler and ranch homes, these runs are often buried in concrete slabs with no insulation, making them prone to silica dust infiltration through foundation cracks. We use Rotobrush rotary brush systems to scrub the interior walls of rigid metal ducts, followed by negative-air extraction to remove loosened debris without redistributing it into your home.

Video Inspection and Documentation
Before we quote and after we finish, we run a camera through accessible duct segments so you see what we see. In Sunnyvale’s older housing stock, this often reveals corroded joints, previous pest intrusion, or cracked slab penetrations that explain persistent odor or efficiency problems. The video becomes part of your written job record.
We also handle Dryer Vent Cleaning in Sunnyvale and Duct Sealing in Sunnyvale for homeowners who need comprehensive airflow and safety improvements beyond cleaning alone.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Sunnyvale
Our equipment roster includes Rotobrush rotary brush systems for mechanical agitation in rigid metal ducts, Nikro negative-air machines for contained debris extraction, and filtration products from Honeywell, Aprilaire, and Guardsman. For Sunnyvale homeowners with slab-embedded ductwork, the combination of rotary brushing and HEPA-filtered negative-air collection matters more than in markets with raised foundations and flex-duct construction. We stock common replacement fittings and access panels locally, so if our video inspection turns up a separated joint or corroded boot, we can often address it during the same visit rather than rescheduling. Our technicians carry Guardsman filtration media and can recommend upgrades compatible with your existing air handler if your system struggles with the fine particulate load common in this area.
Common Air Duct Cleaning Problems We See in Sunnyvale Homes
- Silica dust infiltration through slab cracks. Many Sunnyvale homes sit on slab foundations with ducts cast into the concrete. Decades of seismic micro-movement and soil shifting create hairline cracks that draw in fine silica dust from the surrounding soil. Standard vacuum methods won’t remove this bonded material; rotary brush agitation followed by negative-air extraction is required.
- Mold and dust mite cycling from seasonal humidity swings. Sunnyvale’s cool, wet winters allow mold spores and dust mites to establish in ductwork, then the first hot September days bake them into a hardened biofilm. We see this pattern repeatedly in Heritage District homes where occupants report a sudden musty blast when the AC first kicks on after months of heating-only operation.
- Radon-laced soil gas entering through deteriorated return plenums. The 2018 EPA radon zone map update placed greater scrutiny on Dallas County slab construction. In Sunnyvale, cracked return-air plenums beneath the slab can draw soil gas directly into the HVAC stream. Our inspections check for this pathway, and we document findings with video for homeowner records.
- Construction debris from decades of unpermitted remodels. Sunnyvale’s housing stock has seen continuous renovation since the 1980s, and many older ranches still contain drywall dust, fiberglass fragments, and even discarded fasteners in their ductwork from work done without proper containment. This material doesn’t move on its own; it requires mechanical agitation and professional extraction.
Pricing for Air Duct Cleaning in Sunnyvale, TX
We publish our ranges because we’ve been on the other side of the bait-and-switch, and we won’t run that model. A typical residential full-system air duct cleaning in Sunnyvale runs $350 – $650 for homes up to 2,500 square feet. Homes between 2,500 and 4,000 square feet typically fall in the $550 – $850 range. Commercial systems start around $800 and scale with linear footage and contamination level.
What moves you within these ranges? Slab-embedded ductwork requiring specialized rotary equipment adds $100 – $200. Heavy contamination from years of deferred maintenance or post-construction debris adds time and disposal cost. Video inspection, if not bundled into your service package, runs $150 – $250 as a standalone.
We do not quote per-vent pricing. That structure invites lowball estimates that balloon once the technician is inside your home. Instead, we give one flat price per system, agreed in writing before work starts, based on square footage, duct configuration, and what we find during our pre-cleaning assessment. Estimates are free. Call (361) 326-5060 to schedule yours.
We Also Serve Cities Near Sunnyvale
Our crews regularly work in Sunnyvale and the surrounding communities, including Mesquite to the west, Balch Springs to the south, Forney to the east, and Rowlett to the northeast. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, with local crews deployed to each market. Whether you’re in the Heritage District, near Collins Road, or closer to the Mesquite border, the same written pricing, background-checked technicians, and 365-Day Done Right Promise apply.
Serving Sunnyvale, TX - Our Local Coverage Area
We’re based in the Sunnyvale area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Air Duct Cleaning in Sunnyvale
Most Sunnyvale residential appointments are scheduled within three to five business days of your call, with commercial jobs typically booked one to two weeks out depending on after-hours requirements. Call (361) 326-5060 to check current availability; our phones are answered by a live person 24/7.
Yes, we serve the full Sunnyvale service area including the Heritage District, Collins Road corridor, and newer infill developments throughout the 75182 zip code. Our technicians are familiar with the specific ductwork configurations common to each era of local construction.
We do not advertise emergency dispatch for duct cleaning because it is a scheduled maintenance service, not an urgent repair. However, if you’re experiencing severe airflow loss, suspected mold contamination, or post-fire smoke damage, call us and we’ll prioritize your appointment within our next available window.
Sunnyvale’s pricing sits in the same range as Mesquite and Forney for comparable homes, though slab-embedded ductwork common in Sunnyvale’s mid-century housing stock can add $100 – $200 compared to raised-foundation homes with accessible flex ducts. We quote your specific system after a free assessment, not by zip code.
Every job is covered by our 365-Day Done Right Promise in writing. If the work fails within one year, Hollis returns and makes it right at no charge, including a free second visit. This applies to all Air Duct Cleaning in Sunnyvale residential and commercial jobs, with no deductible or service fee.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Sunnyvale and the greater Dallas-Fort Worth area since 2004.




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