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.
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AfterFast, Reliable Air Duct Cleaning Across San Lorenzo
Air duct cleaning in San Lorenzo typically costs between $425 and $780 for a full system on a standard single-story home, and most jobs are completed the same day we arrive. What sets a real cleaning apart is the process: true source-removal with negative-pressure extraction, not a brush waved through a register. We serve every San Lorenzo neighborhood, from the Village streets off Via Manzanas to the ranch homes backing up to the San Lorenzo Creek. Call (737) 727-2314 and you’ll get a written price before a single duct is touched.
Our Air Duct Cleaning team knows the housing stock here. We’re talking 1950s and 60s single-story ranches with low-clearance attic runs, original galvanized ductwork, and returns that have never been opened since the day they were installed. That’s what we work on most weeks in San Lorenzo.
Why Cardinal Air Duct Cleaning Is San Lorenzo’s Preferred Air Duct Cleaning Company
We operate under The Relay Standard, which means every San Lorenzo booking comes with a live trackable arrival time, before-and-after photos of your own ducts, and a digital invoice you can pay from your phone. No four-hour windows. No vague promises. You’ll know the technician’s name before they pull up, and they’ll be background-checked and in uniform.
Our 365-Day Done Right Promise covers every job without exception. If the work isn’t right within a full year, we return and correct it at no charge. That’s the longest satisfaction window in the trade. Omar Haddad, who leads our team, built the San Lorenzo operation around a simple idea: total visibility from booking to invoice. We don’t ask you to trust us blind – we show you the before-and-after photos of your own system and hand you a written price before any work begins.
Air Duct Cleaning in San Lorenzo is what we do every day. We know the fog, the housing age, and the ductwork failures that come with both.
Air Duct Cleaning Services in San Lorenzo
Air Duct Cleaning Services in San Lorenzo means one thing to us: removing the debris that has accumulated inside your supply and return ducts, your plenum boxes, and the blower compartment, using professional-grade equipment from Rotobrush and Nikro. A standard full-system cleaning on a San Lorenzo ranch home runs $425 – $780. The price is written down before we start, and it covers the entire system – not a per-vent rate that inflates as the technician works.
The process: we cut into the trunk line, hook up a HEPA-rated vacuum for negative pressure (that means dislodged debris goes straight into the vacuum, not back into your living room), and run rotary agitation tools through every supply and return run. Then we clean the blower motor and air handler compartment, replace or clean the filter housing, and document everything with photos.
Residential Duct Cleaning
Most San Lorenzo homes are single-story ranches built between the 1940s and 1970s. Their ductwork is typically original, which means decades of dust, pet hair, construction debris, and in coastal-fog homes, damp organic material. We clean the full system, not just the registers you can see.
Video Inspection Before and After
We run a camera through your ducts before we clean and after we finish. You see exactly what was in there, and exactly what it looks like when we’re done. No mystery, no trust-me.
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.
HVAC Duct Cleaning in San Lorenzo
HVAC Duct Cleaning in San Lorenzo goes beyond the ducts themselves. The blower motor and air handler compartment are where damp coastal air deposits the most stubborn buildup: rust flakes, caked debris on the wheel, and fine dust that re-seeds the whole house every time the system cycles. A full-service HVAC duct cleaning runs $475 – $850 depending on system size and accessibility. As with every job, the price is written down before we begin.
San Lorenzo’s marine layer pushes in through the San Leandro – Hayward shoreline, and it lingers. Ducts here pull humid air for months at a stretch. That’s why we always inspect and clean the blower wheel and the air handler cabinet, not just the runs.
Supply and Return Duct Cleaning
Supply ducts carry conditioned air out; return ducts pull room air back in. Both need attention. Returns in San Lorenzo homes often trap lint, pet dander, and in older ranches, rust flakes from deteriorating metal - the same lint buildup that makes Dryer Vent Cleaning in San Lorenzo essential for fire safety. We clean both runs in every job.
Full System Cleaning
A full system cleaning is exactly that: supply runs, return runs, plenums, blower, air handler, and filter housing. One price. Done right the first time, and backed by a year-long promise.
Trusted Brands We Service in San Lorenzo
We work on all major HVAC brands and duct configurations, and we stock common filtration products from Honeywell, Aprilaire, and Abatement Technologies so San Lorenzo customers aren’t waiting on parts. Our equipment fleet includes Rotobrush rotary brush systems and Nikro HEPA-rated vacuums – professional-grade tools, not truck-mounted shop-vac shortcuts. If you have a Honeywell media cabinet or an Aprilaire filter housing, we’ll clean it and advise on replacement timing during the same visit.
Common Air Duct Cleaning Problems We See in San Lorenzo Homes
- Damp, musty debris from the marine layer. San Lorenzo sits in a low-lying pocket where fog pushes in through the shoreline and lingers for months. Duct interiors stay humid, and dust turns into a paste that sticks rather than blowing through. That requires mechanical agitation, not just vacuum.
- Rust-flaked metal in original 1950s and 60s ductwork. Decades of coastal air cycling through galvanized ducts cause oxidation. The rust flakes circulate and settle on registers, and they’ll keep coming back until the source is removed.
- Long, low-clearance attic runs in ranch homes. The classic San Lorenzo single-story has ducts running through a low attic that is difficult to access. A per-vent price model punishes you for that. A flat per-system price doesn’t.
- Blower wheels caked with damp debris. The blower motor is where humid debris cakes onto the wheel. If it’s not cleaned, the system re-seeds the entire house within days. We clean it as part of every full system job.
We ran a full source-removal job on a 1950s single-story in the Lorenzo Manor area where the homeowner kept finding gray dust on the registers days after wiping them down. The camera inspection showed the return duct lined with matted lint and a rusted-out section near the air handler. Once we cut in at the trunk line, hooked up negative pressure with HEPA filtration at the exhaust, and ran agitation tools through both supply and return runs, the visible debris dropped off completely. The before-and-after photos showed bare galvanized metal where the homeowner had never seen it.
Pricing for Air Duct Cleaning in San Lorenzo, CA
Let’s be direct about what this costs. A standard full-system air duct cleaning in San Lorenzo runs $425 – $780 for a typical single-story home. Larger homes, systems with multiple returns, or heavily contaminated ductwork can push toward $850. An HVAC duct cleaning that includes the blower and air handler compartment runs $475 – $850. These are whole-system prices, not per-vent rates.
What affects the price: the number of systems (separate furnaces and coils), the length and accessibility of duct runs, and the extent of contamination. What doesn’t affect it: a technician’s mood at the door. The price we write down before work starts is the price you pay. Call (737) 727-2314 for an exact quote – estimates are free and honestly, they take about ten minutes.
We Also Serve Cities Near San Lorenzo
We run crews throughout the East Bay, including Castro Valley, San Leandro, Union City, and Oakland. If you’re in a neighboring city and not sure we cover you, call – our scheduling is coordinated from the San Francisco Bay Area office, and our San Lorenzo customers know to just ask.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 San Lorenzo
Every 4 to 6 years for most San Lorenzo homes, and more often if you have pets, recent renovation work, or a system that pulls in the coastal marine layer consistently. If you’ve never had them cleaned and the house was built before 1980, assume they’re overdue. Call (737) 727-2314 and we’ll give you an honest answer, even if that answer is “not yet.”
If your ducts are only a few years old, you change filters regularly, and there’s no visible dust settling on registers within days of cleaning them, a professional cleaning may not pay for itself. We’ll tell you that. We run a camera first, and if the ducts are clean, we say so. No upsell, no invented problem.
It means the price you’re quoted in writing is the price you pay, whether your ranch home has eight vents or twenty, whether the attic run is short or long. No per-vent multipliers that inflate the invoice once the technician is inside. Call (737) 727-2314 for a written quote before any work begins.
Yes, every job includes a camera inspection before cleaning and after. The photos are yours to keep. You’ll see what was in there and what it looks like when we’re done – bare galvanized metal where there used to be buildup. That’s The Relay Standard in practice.
We don’t promise same-day service because duct cleaning is a scheduled job, not an emergency. What we do promise is a live trackable arrival window so you know exactly when we’ll be there. Call (737) 727-2314 and we’ll get you on the schedule with a date and time, not a vague “sometime this week.”
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving San Lorenzo and the surrounding East Bay.