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
AfterFast, Reliable HVAC Cleaning Across San Rafael
Air Duct Cleaning in San Rafael costs $425 – $780 for a typical single-system home, and the work takes about 3 to 5 hours. We set one flat price per system before any work starts, based on a camera inspection of your actual ducts. No per-vent pricing, no add-ons at the door. If your system has been running harder than usual or you’re seeing dust settle within days of cleaning, call (737) 727-2314 and we’ll walk you through what’s involved.
San Rafael’s mix of housing stock means no two duct systems are alike. We’ve worked on 1920s bungalows in Gerstle Park with narrow wall stacks, 1960s ranches in Terra Linda with long horizontal runs, and newer Peacock Gap builds with high ceilings and multiple zones. That’s why our crews scope every job on-site first. You get a written price before a single vent cover comes off.
Why Cardinal Air Duct Cleaning Is San Rafael’s Preferred HVAC Cleaning Company
Omar Haddad leads our San Rafael team, and he’s built the crew around one standard: total visibility. You know the technician’s name before they arrive. You get a live trackable arrival window through the Relay Standard booking experience. You see before-and-after photos of your own ducts, not stock images. And every job is covered by the 365-Day Done Right Promise. If the work isn’t right within a full year, we return and correct it at no charge.
We’re a local operation backed by the Relay Home Co. family, which has been setting service standards since 2005. That heritage matters because it means we’re held to The Relay Visibility Guarantee on every booking: a live arrival time, photo documentation of the work, and a digital invoice you can pay from your phone. Dispatch and scheduling run through the brand’s San Francisco Bay Area office, but the crews cleaning ducts in San Rafael live and work here.
Our technicians carry professional-grade equipment: Rotobrush rotary brush systems for agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units so loosened debris doesn’t migrate through your home. That’s a different league from a truck-mounted shop vac. San Rafael homeowners who’ve had both notice the difference in their filters within a week.
AC Cleaning in San Rafael
AC Cleaning in San Rafael means removing the debris that accumulates on the indoor evaporator coil, the blower wheel, the drain pan, and the supply and return duct interiors. The goal is simple: restore airflow and stop your system from recirculating dust, pollen, and drywall particles every time the thermostat calls for cooling. In San Rafael, where summer heat pushes AC demand hard in July and August, a dirty coil forces longer run times and higher bills.
Most AC cleanings in San Rafael run $325 – $550 as part of a full HVAC Cleaning package. The coil itself is where the real efficiency loss happens. A coated evaporator coil can cut heat transfer by 10 to 15 percent, and the only fix is mechanical cleaning with the right chemistry.
Coil Access and Condition
On older San Rafael homes, coil access can be tight. Split-level units in Terra Linda and Lucas Valley often have air handlers wedged into closet corners or attic knee walls. We inspect access first, then build the cleaning plan around what’s actually reachable.
Drain Pan and Overflow
Marin County’s coastal humidity means drain pans collect more biological growth here than in drier inland cities. We clear the drain line and treat the pan so water flows freely and doesn’t back up into the plenum.
Evaporator Coil Cleaning in San Rafael
Evaporator Coil Cleaning in San Rafael homes is the single highest-impact step in the whole HVAC cleaning process. The evaporator coil sits inside the air handler and is the surface where your indoor air actually gets cooled. When it’s caked with dust, pet hair, and the fine grey film that accumulates over years, your system works harder and moves less air.
A standalone evaporator coil cleaning in San Rafael typically costs $225 – $400. If the coil is badly fouled, especially in homes that ran for years with basic 1-inch fiberglass filters, the job takes longer and may require coil-safe chemical treatment. We never use harsh acidic cleaners on aluminum fins; the wrong chemistry can eat pinholes through the coil and turn a cleaning into a replacement.
Signs Your Coil Needs Attention
Uneven cooling between rooms is the most common tell in San Rafael. When one bedroom stays warm while the living room freezes, the coil or blower is usually the culprit. Higher summer bills month after month, even with clean filters, is another.
The Cleaning Method
We use soft-bristle agitation on the coil face, then a biodegradable foaming cleaner that lifts the film. The rinse goes down the drain line, not into the plenum. After cleaning, we measure the temperature drop across the coil and photograph the result.
Trusted Brands We Service in San Rafael
We work on systems from Carrier, Trane, Lennox, Rheem, Goodman, and Daikin. Most San Rafael homes have one of those five brands, and we carry the common service parts for each, so turnaround is fast. We also install and service filtration upgrades from Aprilaire, Honeywell, and Guardsman, which matters in a climate where Marin pollen season runs long. If your system uses an Aprilaire media cabinet or a Guardsman UV unit, our techs service those in place during the same visit.
Common HVAC Cleaning Problems We See in San Rafael Homes
- Drywall dust from remodels. Gerstle Park and Sun Valley have seen decades of renovations, and that fine white powder settles deep in return ducts. Once it’s in the air handler, it coats the blower and coil within months.
- Marin pollen and fine particulates. Live oaks, bay trees, and ornamental grasses around the Terra Linda and Lucas Valley foothills put a heavy pollen load on systems. Standard 1-inch filters let most of it through, so duct interiors accumulate it fast.
- Long, complex duct runs in ranch and split-level homes. Terra Linda and Santa Venetia floorplans often have supply trunks stretching 40 feet or more. Per-vent pricing on those layouts incentivizes speed and misses source debris in the trunk line.
- Two-story stratification with a single system. Peacock Gap and Dominican neighborhoods have many two-story homes where one system serves both floors. The upstairs runs hot, the downstairs runs cold, and a dirty coil or blower amplifies the imbalance.
Pricing for HVAC Cleaning in San Rafael, CA
A full HVAC cleaning for a typical single-system San Rafael home runs $425 – $780. That’s one flat price per system, agreed in writing before we start. We do not charge per vent, because long duct runs in older Marin homes make per-vent billing an open door to inflated invoices. Larger homes with two systems run $850 – $1,400 total. At the high end, a heavily contaminated system with a five-inch media filter or UV array may top $900 for a single system. Your estimate is free, and it’s the exact number you’ll pay. Call (737) 727-2314 to schedule a camera inspection.
Some companies advertise lower numbers. Ask what the price per vent is, and do the math on a ranch with 14 supply runs. Then ask if the coil and blower are included. In our experience, the “cheaper” quote usually isn’t.
We Also Serve Cities Near San Rafael
Our San Rafael crew also covers HVAC Cleaning in San Rafael plus Larkspur, Kentfield, Corte Madera, and San Anselmo. All four are within about 15 minutes of our service area, and the same flat per-system pricing and 365-Day Done Right Promise apply everywhere. If you’re in one of those towns, call the same number: (737) 727-2314.
Serving San Rafael, CA - Our Local Coverage Area
We’re based in the San Rafael 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 HVAC Cleaning in San Rafael
Every 3 to 5 years for most homes, and we’ll tell you honestly when it’s not needed. Homes near Sonoma Highway or with heavy tree canopy may need it every 2 to 3 years. Homes with good filtration, no pets, and a sealed duct system can go 5 years or more. Our camera inspection will show exactly what’s in your ducts before we recommend anything. Call (737) 727-2314 for an honest assessment.
It covers a camera inspection, mechanical agitation of supply and return ducts, negative-pressure extraction with HEPA filtration, cleaning of the evaporator coil, blower wheel, drain pan, and accessible plenum surfaces. Nothing is added at the door. If we find a repair during the job, we show you with photos and get written approval before any extra work.
Because you should see proof. Our techs run a camera probe through your ducts at the start and again at the end, and the photos are delivered with your digital invoice. You’ll see the actual interior condition of your own ducts, not a demonstration. It’s part of The Relay Visibility Guarantee and it’s standard on every San Rafael job.
No. Proper HVAC cleaning in San Rafael takes 3 to 5 hours, and we don’t rush it. We schedule by appointment, with a live trackable arrival window. If you have a specific event or tenant move-in, we’ll work to get you on the calendar as soon as possible. Call (737) 727-2314 and we’ll find the next open slot.
We run Rotobrush rotary brush systems for duct agitation, Nikro HEPA vacuums for negative-pressure extraction, and Abatement Technologies containment units to keep debris out of your living space. We also work with Aprilaire, Honeywell, and Guardsman filtration products. None of this is a truck-mounted shop vac with a hose.
Call Cardinal Air Duct Cleaning in San Rafael
If you want a straight answer about your HVAC system and a written price that doesn’t shift, call (737) 727-2314 today. A live person answers. You’ll talk to someone who knows San Rafael homes, not a national call center. Free estimates, camera inspection included, and every job backed by the 365-Day Done Right Promise.
Written by Omar Haddad, Owner at Cardinal Air Duct Cleaning, serving San Rafael and nearby Marin County cities.