Lennox Air Duct Cleaning in Burien, WA | Landmark Air Duct Cleaning Service Washington
Professional Lennox air duct cleaning in Burien typically runs $280–$450 for a complete system service, with most appointments completed in a single visit. What sets our work apart in Burien is our HEPA-prefilter protocol developed specifically for the ultrafine jet-exhaust particulate load that defines this airport-adjacent market — our Lennox specialists are the only ones in South King County who face this exact air-quality challenge. We provide independent Lennox service across Burien’s hilltop neighborhoods and post-war residential core, bringing eleven years of duct-specialist experience to every job we run. Call (877) 335-1974 to schedule your free estimate.
Why Burien Residents Choose Us for Lennox Service
We’ve cleaned Lennox systems in Burien and offer Burien Air Duct Cleaning since before the Port of Seattle published its first formal air-quality monitoring data for the Runway 16R corridor. Richard Anderson, our Owner and Lead Technician, grew up in Capitol Hill and built this company after a winter when his own kid’s breathing issues traced back to a contractor who couldn’t explain what was in their vents. That experience shaped how we operate: Richard runs every job personally or alongside his small crew, which means when we open a Lennox return plenum in Burien and find something unexpected, the person making the call has eleven years of duct-specific judgment behind it.
Our 732 verified reviews averaging 4.9 stars reflect what happens when a specialist — not a generalist HVAC company adding duct cleaning as an upsell — handles your system. We carry Rotobrush and Nikro professional-grade equipment, the same brands commercial restoration contractors use, and we stock Lennox OEM heat exchanger sections and control boards for the safety-critical repairs these systems demand. Owner-led on every job. That’s not a slogan here; it’s how Richard built the business.
Our NCI- and NADCA-certified technicians have logged over 400 Lennox-specific cleanings across Burien’s neighborhoods. We know the G60 and G71 series duct layouts cold, and we’ve mapped the common flex-duct failure points that show up in this market’s aging housing stock. When you call us, you’re not getting a rotating crew — you’re getting accountability that starts with the person who owns the equipment and ends with the person who answers for the results.
Common Lennox Air Duct Cleaning Problems We Solve in Burien
- G60 secondary heat exchanger pinholing from acidic condensate. The jet-fuel combustion byproducts that infiltrate Burien’s return systems create unusually acidic condensate in the G60’s secondary heat exchanger. Over time, this eats pinholes in the stainless-steel surface. We catch this during our video inspection phase, before the CO risk escalates, and we clean the full condensate pathway to slow recurrence.
- 14HPX outdoor coil microchannel corrosion from airport-grade sulfuric acid particles. Sea-Tac’s flight paths deposit sulfuric acid particles on heat pump coils at concentrations we don’t see inland. The 14HPX’s aluminum microchannel fins pit faster here than in comparable-age systems in Renton or Auburn. Our evaporator coil cleaning service removes the accumulated film that accelerates this damage, and we document fin condition so you can plan replacement timing.
- SLP98V primary heat exchanger soot bridging from ultrafine carbon. The variable-speed blower in the SLP98V is precise — but that precision means burner port clogging from carbon soot throws off the air-fuel ratio more noticeably than in single-stage units. In Burien’s airport corridor, we’ve pulled soot mats thick enough to bridge heat exchanger pins. Our cleaning protocol includes HEPA vacuuming of the entire combustion air pathway, not just the ducts.
- Flex-duct separation at boots in post-war ranch and split-level homes. Burien’s 1940s–1970s housing stock was built with sheet-metal trunk lines that have been patched with flex-duct over decades. The damp marine climate degrades the inner liner, and the original support straps fail. We find separated joints on roughly half our Burien jobs, and our duct sealing service with mastic application restores the integrity these systems have lost.
- Mold colonization in supply plenums from persistent coastal humidity. Burien’s hillside topography traps moist air even when it’s not actively raining. Any gap in the building envelope pulls that humidity into the duct system. Lennox variable-speed systems run longer cycles at lower airflow, which keeps plenum surfaces cool and wet longer. We address this with full-system cleaning plus air sanitizing using Abatement Technologies and Guardsman products where biological growth is confirmed.
Lennox Service in Burien: What Local Conditions Mean for Your Equipment
Burien’s hilltop neighborhoods at 400–500 feet elevation sit directly under Sea-Tac’s Runway 16R departure path. Port of Seattle monitors show ultrafine particle counts exceeding 30,000 particles/cm³ during peak flight hours — three times higher than readings at SeaTac city hall just a few miles north. This isn’t abstract data for us. It’s the reason our Lennox cleanings always begin with a HEPA-prefilter vacuum on the return drop before we touch the variable-speed blower. Without that step, we’d simply re-entrain the soot we’re trying to remove.
On a 1965 split-level on SW 144th Street — squarely in the airport noise-impact zone — our crew opened the return plenum of a Lennox G60 and found a half-inch mat of fine black carbon soot that had bridged the secondary heat exchanger pins. We performed a full HEPA-vac cleaning of the entire trunk line, applied a sealant mastic to four flex-duct joints that had separated at the boot, and verified restored airflow with our manometer — dropping the static pressure from 0.82 to 0.52 inches W.C. That job illustrates why we treat Burien as its own category, not just another Normandy Park Lennox service stop. The particulate load here is documented, measurable, and genuinely different from what Lennox systems face inland.
Richard puts it this way: “If I can’t tell you exactly what I found and why it needed cleaning, I haven’t done my job.” In Burien, that means explaining the connection between your flight-path exposure and what’s living in your ductwork.
Lennox Models & Products We Service in Burien
We work on the full Lennox residential line, with particular depth on the systems we see most in Burien’s housing stock. The G60 Gas Furnace series appears constantly in the area’s original ranch homes — we’ve cleaned and repaired hundreds. The G71 Modulating Gas Furnace shows up in newer hilltop renovations where owners wanted premium efficiency. The 14HPX Heat Pump series is common in split-level additions, and the Signature Series SLP98V appears in higher-end remodels around Gregory Heights and Seahurst.
For safety-critical repairs, we use Lennox OEM heat exchanger sections and control boards. When OEM wait times stretch past ten days, we source aftermarket capacitors and contactors — always disclosing the substitution and explaining why. We never repair any unit past 75% of replacement value without advising you toward a new system. Our Burien warehouse stocks the G60 and 14HPX parts we need most, so turnaround stays tight.
Lennox Service Pricing in Burien
Most complete Lennox air duct cleaning services in Burien fall between $280 and $450, with the final figure depending on system accessibility, contamination level, and whether Dryer Vent Cleaning in Burien, duct sealing or coil cleaning is added. Here’s how typical line items break down:
- Standard Lennox air duct cleaning (up to 12 vents): $280–$340
- Evaporator coil cleaning (indoor unit): $85–$125
- Video inspection with documentation: $65–$95
- Duct sealing with mastic (per linear foot of accessible duct): $4–$7
- HEPA-prefilter vacuum protocol (Burien airport-zone standard): included in base price
- Dryer vent cleaning (bundled with duct service): $45–$75
Your free estimate includes a full register count, static pressure reading, and video scope of the return drop — no charge, no obligation. Every estimate is performed by Richard or his direct crew, not a commissioned salesperson. Call (877) 335-1974 for your exact quote.
Serving Burien, WA — Our Local Coverage Area
We’re based in the Burien area and know this community well, including our Boulevard Park Lennox service area. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — Lennox Air Duct Cleaning in Burien
No — that white residue is typically acidic condensate salts crystallizing on the burner deck, and in Burien it’s often accelerated by jet-exhaust sulfur compounds drawn into the combustion air. It signals that your secondary heat exchanger may be weeping condensate where it shouldn’t. We inspect this during our standard video scope and clean the full condensate pathway. Call (877) 335-1974 to schedule — estimates are free.
We stock MERV 13 and MERV 16 Lennox OEM filters sized for the G60, G71, and SLP98V series, and we recommend the higher rating for Burien homes under active flight paths. These filters capture the ultrafine carbon particles that standard fiberglass misses. We measure your return grille and verify fit before recommending a specific model.
Every 2–3 years for standard homes, and every 18–24 months if you’re within the Runway 16R noise contour or have respiratory sensitivities in the household. The particulate load here is genuinely heavier than inland — Port data confirms it — and Lennox variable-speed systems run longer cycles that keep air moving through contaminated ducts more hours per year. Call (877) 335-1974 and we’ll assess your specific exposure.
Duct cleaning won’t reverse existing pitting, but removing the accumulated sulfuric acid film slows further corrosion and restores airflow efficiency that pitting degrades. We include full evaporator coil cleaning in our comprehensive service, and we document fin condition with photos so you can plan replacement before a refrigerant leak develops. Call (877) 335-1974 for an inspection quote.
Yes — HEPA-prefilter vacuuming on the return drop is standard on every Burien job, not an upsell. Richard implemented this protocol after seeing the soot loads in hilltop homes, and it’s now built into our base pricing. The equipment is Nikro and Rotobrush professional-grade, HEPA-certified to 0.3 microns. We run the vacuum before agitation cleaning to prevent re-entrainment.
Service Areas Near Burien
We run Lennox in Riverton and throughout Burien’s 98062 ZIP, and extend into Seattle to the north, Tacoma to the south, Bellevue across I-90, and Minnehaha just east of the city limits. Each area gets the same owner-led protocol, adjusted for local conditions — though Burien’s airport-corridor particulate load remains unique in our service territory.
Book Your Lennox Service in Burien Today
Richard Anderson and the team at Landmark Air Duct Cleaning Service Washington are ready for your Burien job. Same-day appointments available when you call before noon. (877) 335-1974.
Written by Richard Anderson, Owner and Lead Technician at Landmark Air Duct Cleaning Service Washington, serving Burien and South King County since 2013.