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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AfterLennox Air Duct Cleaning in San Diego, CA | Hollis Air Duct Cleaning
We clean Lennox ducted systems across San Diego, from the Dave Lennox Signature Collection to older Merit and Elite series furnaces. What makes our work here different is simple: San Diego’s marine layer means your Lennox ductwork faces different problems in Ocean Beach than it does in Mira Mesa, and we plan the job accordingly. Call (361) 326-5060 for a written quote before any work starts.
We’re an independent Lennox service provider. We’re not manufacturer-affiliated or authorized, which means we diagnose what your equipment actually needs rather than following a corporate script. For homeowners searching Lennox sales & service, that independence matters when the real question is whether your ducts need cleaning, repair, or both. Roy Castellanos, our owner, cut his teeth in HVAC through Los Angeles Trade-Technical College’s sheet metal and air conditioning program, and he’s built Hollis around one standard: written prices, written guarantees, and no upsells at the door.
Why San Diego Residents Choose Us for Lennox Service
We’ve worked on Lennox equipment in San Diego County long enough to know the quirks of every model family: Signature Collection two-stage furnaces, Merit Series builders’ units, Elite Series heat pumps, and the older G-series and Complete Heat furnaces still running in plenty of coastal bungalows. We know which blower motors collect dust, which coil designs trap marine-layer moisture, and which control boards fail after years of short cycling in mild weather.
Here’s the part that matters for San Diego specifically. We stock Lennox OEM or exact-fit aftermarket blower motors, control boards, and heat exchanger components locally so we’re not waiting on a parts truck from Los Angeles. For duct repairs, we use UL-listed flex duct, mastic, and boot replacements that meet or exceed code. If your Lennox equipment is 15-plus years old with a failed heat exchanger or compressor, you’ll get a straight repair-versus-replace comparison. Not a sales pitch. The San Diego service area we cover runs from the coast through the inland valleys, which means we see both salt-corroded galvanized ducts and sagging flex core in the same week.
Every job is done by background-checked, uniformed technicians under The Garrison Code: arrive inside the window, price in writing before work starts, finish by the book, and leave the site clean. If it’s not done right, our 365-Day Done Right Promise covers a return visit at no charge.
Common Lennox Air Duct Cleaning Problems We Solve in San Diego
- Musty odor that runs even when the system is off. Coastal San Diego homes with Lennox Merit or Elite systems pull marine-layer moisture into return ducts. That damp air feeds biological growth on the blower wheel and evaporator coil. The smell circulates in fan-only mode, which is exactly how San Diegans run their systems most of the year.
- Rust flakes inside the air handler from corroded duct boots. We see this constantly in 1940s – 60s beach bungalows near Ocean Beach and Mission Beach. Salt-laden ocean air eats through galvanized duct walls and boot connections. The rust breaks loose and gets pulled into the Lennox blower compartment, where it grinds against the wheel and settles on the coil.
- Sagging, torn flex duct in inland tract homes. In Carmel Valley, Mira Mesa, and Otay Ranch, the 1980s – 2000s Lennox installations used flexible plastic-core ducts. They sag between supports, tear at the collar, and separate at joints. Attic dust and insulation fibers bypass the filter and load the blower. That’s a repair job, not just a cleaning.
- Dust loading on coils and heat exchangers from fan-only operation. San Diego’s mild climate means Lennox systems here run less for heating and cooling than anywhere else in the country. That sounds good until you realize settled dust and biological growth sit undisturbed for months, baking onto the coil and reducing airflow.
- Asbestos-wrapped ducts in older North Park and Hillcrest homes. Original furnace ducts from the 1940s and 1950s often have asbestos-containing insulation on the exterior. Those need special handling before any cleaning can begin. We identify it, stop work, and bring in the right protocol. This is one of the most common surprises we find in San Diego’s older housing stock.
Lennox Service in San Diego: What Local Conditions Mean for Your Equipment
San Diego’s marine layer keeps relative humidity high for much of the year, especially during May and June gloom. That one fact changes how we clean Lennox systems here. In coastal neighborhoods like Ocean Beach and Pacific Beach, the same Lennox model that runs dry and dusty in Mira Mesa or Otay Ranch stays damp enough to grow biological material on the evaporator coil and blower wheel. It’s two different procedures for the same equipment, divided by the coastal-inland line.
What we find on the coast is moisture. What we find inland is dust. In a 1948 bungalow near Ocean Beach, our crew pulled the return grille on a Lennox Merit Series furnace and found the original galvanized duct boot rusted through from salt air, with a musty smell and visible mold on the blower wheel. We sealed the return with mastic, replaced the boot and a section of flex duct that had torn at the collar, cleaned the evaporator coil and blower, and installed bird guards on the two sidewall vents. After the job the homeowner told us the musty odor in the hallway was gone for the first time in years. That’s the difference between cleaning on one side of San Diego or the other.
Lennox Models & Products We Service in San Diego
We service the full Lennox residential line: Dave Lennox Signature Collection furnaces and heat pumps including the SL280V, SL297V, and EL296V; Merit Series units like the ML180, ML193, and ML14XC1; Elite Series models including the EL16XC1, EL18XPV, and EL296E; and older Complete Heat and G-series furnaces still running in original installations around San Diego.
For evaporator coil cleaning, flex duct repair, and duct sealing, we use professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies, with filtration products from Honeywell, Aprilaire, and Guardsman. Those are the same tools commercial crews use, and we’ll explain what each one does in plain terms before we touch your system.
Lennox Service Pricing in San Diego
A full Air Duct Cleaning - San Diego for your Lennox system typically runs between $350 and $650 depending on home size, number of systems, and whether you’re on the coastal side of the marine layer line. That price includes the evaporator coil, blower wheel, supply and return ducts, and registers. It’s one flat price per system, written down before any work starts, and it does not move at the door.
If we find torn flex duct or corroded boots, we’ll quote the repair separately and show you photos of what we found. You approve the number before we do anything. Roy Castellanos signs off on every written estimate, because a price that changes after the van shows up is the whole reason this industry has a trust problem. Call (361) 326-5060 for an exact quote. Estimates are free.
Serving San Diego, CA - Our Local Coverage Area
We’re based in the San Diego 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 – Lennox Air Duct Cleaning in San Diego
Because your Lennox blower wheel and evaporator coil are damp from marine-layer air pulled into the return ducts, and biological growth on those surfaces produces odor that circulates in fan-only mode. Coastal San Diego homes are the worst for this because the relative humidity stays high most of the year. The fix is coil and blower cleaning plus sealing any return duct leaks that pull moisture in. Call (361) 326-5060 and we’ll give you a written quote for the full job.
That’s a repair. Sagging and torn flex duct is a structural problem from age, heat, and poor original installation, not something a cleaning can fix. We’ll replace the damaged sections with UL-listed flex duct, strap it properly, and seal the collars with mastic. Then we clean the entire system so the new duct starts dust-free.
Often yes. Original furnace ducts in 1940s and 1950s San Diego homes are frequently wrapped in asbestos-containing insulation. We inspect before we start, and if we identify asbestos, we stop and bring in the required handling protocol before any cleaning can proceed. That’s standard practice for our crews, not an upsell.
Yes. Cleaning the evaporator coil, blower wheel, and ducts does not void a Lennox warranty unless the cleaning itself causes damage, which is why we use professional negative-air and rotary brush equipment and document everything with before-and-after photos. We use Lennox OEM or exact-fit aftermarket parts for any component replacements, and we’ll tell you if a repair should go through a warranty claim instead.
Coastal San Diego homes from Ocean Beach to La Jolla should have ducts inspected every 2 to 3 years because marine-layer humidity accelerates biological growth. Inland homes in Mira Mesa, Carmel Valley, and Otay Ranch can usually go 4 to 5 years unless there are pets, recent remodeling, or someone in the house with allergies. Call (361) 326-5060 and we’ll tell you honestly whether your system needs it now or can wait.
Service Areas Near San Diego
We provide Lennox air duct cleaning throughout San Diego County, and we also help comparison shoppers looking at Lennox service in Dallas or Lennox service in Fort Worth understand how coastal versus inland conditions change the job. Closer to home, we cover Los Angeles County too, including the neighborhoods Roy grew up around. If your Lennox system sits on either side of the marine layer line, we’ll clean it right.
Book Your Lennox Service in San Diego Today
Clean ducts, straight answers – that’s the whole job. Call (361) 326-5060 for a free estimate on our Dryer Vent Cleaning in San Diego or Lennox air duct cleaning anywhere in San Diego. We’ll write the price down before we start, show up when we said, and stand behind the work for a full year.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving San Diego since 2004.