Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-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.
Why Arlington Homeowners Choose Lennox Air Duct Cleaning
We provide independent Lennox air duct cleaning and repair service in Arlington, which means we diagnose and clean the air-side system that’s actually installed in your home rather than applying one generic approach to every cabinet. Lennox equipment has specific return-air and filter-housing habits, and we work on that equipment every week. We are not affiliated with, authorized by, or acting on behalf of Lennox, and we don’t pretend otherwise.
What sets our Lennox work apart is attention to the parts of the system owners rarely see: panned return bays, boot connections behind drywall, and the seal on a Healthy Climate or PureAir filter cabinet. When those fail, the cabinet sees unfiltered air, and no amount of surface cleaning fixes it. Arlington has a housing stock where that kind of bypass is common.
If you want to know what’s inside your ducts and what your Lennox system needs, call (844) 932-0326. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why Trust Juniper Air Duct Cleaning for Your Lennox Air Duct Cleaning?
Our technicians have up to 11 years of experience, and that experience runs across Lennox’s ducted systems: variable-capacity furnaces in the Signature Collection, the Merit and Elite workhorses, and the Healthy Climate and PureAir add-on filtration and humidification equipment many Arlington owners have had spliced into their systems. We know how those cabinets move air, and we know what happens to them when return ducts are too small or a flex run has collapsed behind a boot.
We use professional-grade Rotobrush contact-cleaning equipment and Nikro HEPA-rated containment systems, which means dust comes out of the system and into filtration, not into the room or the coil. That matters on a Lennox cabinet with a media filter housing, because the filter seals are engineered for filtered air, not construction dust.
We also use quality parts that fit Lennox equipment, including OEM filters, gaskets, and cabinet seals where fitment actually matters, and quality aftermarket flex, mastic, and insulation for duct repair. Nothing we do involves cutting corners on parts that seal a cabinet. Every job is licensed and insured, one flat price per system is agreed before work starts, and we photograph your ducts before and after so you can see the work.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Lennox Air Duct Cleaning Problems We Fix in Arlington
- High-static duct design on older Lennox upflow and downflow furnaces. Older Lennox duct layouts were sized for the equipment of their day, and when return ducts are undersized or a flex run has collapsed, the system runs high static pressure. The blower overworks, airflow drops at the far registers, and the furnace can trip its limit on a cold snap. We measure the returns, not just the supply, because that’s where the restriction usually lives.
- Panned-joist returns and boot connections that leak. A lot of Lennox systems in mid-century Arlington homes draw return air through joist bays panned with sheet metal. Those pans fail at the seams, and the boot connections leak at the drywall. When that happens, the blower pulls attic or basement air straight into the return, which raises the dust load on the blower wheel and evaporator coil. Sealing those bays with mastic is often the difference between a cleaned system and a system that stays clean.
- Secondary heat exchanger and blower wheel fouling on high-efficiency Lennox furnaces. When ductwork carries construction dust or biological growth, that material moves through the cabinet and loads up on the secondary heat exchanger and blower wheel. A linty, dust-coated wheel throws the blower off balance and reduces airflow, which is a common cause of weak heating and noisy operation.
- Filter-cabinet seal and media-filter housing gaps on Healthy Climate and PureAir setups. These housings are engineered to seal tightly around a media filter, and when the gasket degrades or the cabinet has been opened for service and not resealed, unfiltered air bypasses directly into the evaporator coil. The filter looks clean while the coil quietly fouls. That’s a repair, not just a cleaning task.
- Evaporator coil loading from bypass air and humid Mid-Atlantic summers. Arlington’s humid summers push condensate and biological growth in ducts and air handlers, and the local mix of mature tree canopy and humid air makes coil condensation a recurring seasonal issue. On a Lennox system with panned returns, that coil can end up coated in dust and biofilm, which cuts capacity and drives the system to work harder than it should.
Lennox Parts & Our Repair-vs-Replace Approach
On Lennox equipment, fitment is where a repair lives or dies. We use OEM filters, gaskets, and cabinet seals where the seal actually has to hold, specifically media cabinets, PureAir housings, and secondary heat exchanger gaskets. For duct work, we use quality aftermarket flex, mastic, and insulation, because those don’t depend on a manufacturer’s proprietary tolerance. We don’t claim to stock OEM parts, and we won’t tell you we can order something we can’t. What we can do is use parts that fit your Lennox equipment and seal the way the system was designed to seal.
The repair-vs-replace call is straightforward. If the cabinet and coil are sound and the problem is fouling or bypass, we clean and repair. If the heat exchanger is cracked or the blower motor has failed on an aging unit, we tell you plainly that replacement is the better call rather than selling a cleaning that won’t help. No pressure, just an honest read of what your system needs. Call (844) 932-0326 for an exact quote; estimates are free.
Our Lennox Service Process – Step by Step
- 1
Diagnosis. We start with the return side, because Lennox systems tend to show their problems there first. We video-inspect the returns and panned bays, check static pressure, and inspect the filter cabinet seal. On a Healthy Climate or PureAir housing, we check the gasket and the media filter fit before we touch anything else.
- 2
Repair and cleaning. We clean the blower wheel, evaporator coil, and ducts with Rotobrush contact-cleaning equipment and Nikro HEPA-rated containment, then seal panned joist bays and boot connections with mastic. Duct sealing and return duct cleaning are often what actually stops the re-fouling.
- 3
Testing. We verify airflow at the registers and confirm the cabinet is seeing filtered house air rather than bypass air. If the high-limit switch was tripping before, we want to know it’s not tripping after.
- 4
Warranty-safe closeout. We document what we found and what we did, and we make sure the filter housing and cabinet seals are back to spec so your Lennox warranty isn’t put at risk by a service visit. Before-and-after photos of your own ducts are included.
See the difference
Before
After
Before
After
Before
AfterLennox Products We Service & Install in Arlington
We service and install Lennox residential and light-commercial air-side equipment, which for most Arlington owners means their furnace, air conditioner, and the filtration and humidification add-ons that hang off the system. That includes variable-capacity furnaces in the Signature Collection, the Merit and Elite furnaces and condensers, and Healthy Climate and PureAir filtration and humidification equipment. We service the duct system, the cabinets, the coils, and the filter housings around that equipment. We don’t handle HVAC installation, mold remediation, or general HVAC repair outside that scope, and we’ll tell you honestly if a job is outside what we do. Call (844) 932-0326 to talk through your system.
We Also Service These Brands
We’re a multi-brand shop, not a single-brand one. Alongside Lennox, we work on Trane and Carrier systems and the ductwork around them, and we’re familiar with leading IAQ brands including Honeywell, Aprilaire, Abatement Technologies, and Guardsman. If your home has a mix of equipment from different manufacturers, that’s normal in Arlington, and we can clean and repair the whole system without treating one brand as an exception.
FAQs – Lennox Air Duct Cleaning Service in Arlington
Is Juniper Air Duct Cleaning authorized by Lennox? No. We are an independent service provider and we’re not affiliated with, authorized by, or acting on behalf of Lennox. We diagnose and clean the Lennox system that’s installed in your home, using parts that fit it. Call (844) 932-0326 for an exact quote; estimates are free.
Do you use quality parts that fit Lennox equipment? Yes. We use OEM filters, gaskets, and cabinet seals where fitment matters, specifically media cabinets, PureAir housings, and secondary heat exchanger gaskets, and quality aftermarket flex, mastic, and insulation for duct repairs. We don’t claim to stock OEM parts.
How long does Lennox service take? Most Lennox air duct cleaning and repair work on a single residential system is done in one visit, though a job with panned-joist returns, a fouled coil, and sealing work can run longer. We’ll give you a realistic window in the written estimate before we start.
What kinds of Lennox products do you cover? The air-side equipment: furnaces including variable-capacity and high-efficiency models, air conditioners, and the Healthy Climate and PureAir filtration and humidification add-ons, along with the duct system, coils, and filter housings around them. We don’t do HVAC installation or general HVAC repair outside that scope.
Will service void my Lennox warranty? Not when it’s done correctly. We reseal the filter cabinet and housing to spec, use parts that fit, and document the work, which is what keeps a service visit from putting your warranty at risk. If we find something that would, we’ll tell you before we touch it. Call (844) 932-0326 with questions.
How much does Lennox air duct cleaning cost in Arlington? It depends on the system: the number of returns, whether panned bays need sealing, and whether the coil or filter housing needs repair. We price one flat rate per system, agreed before work starts, with no per-vent pricing and a written estimate that sets the final price. Call (844) 932-0326 for an exact quote; estimates are free.
Does my Lennox Healthy Climate or PureAir filter cabinet need to be resealed during duct cleaning? Yes, it usually does. The cabinet is engineered to seal tightly around the media filter, and once the gasket has degraded or the housing has been opened and not resealed, unfiltered air bypasses straight into the coil. We check the seal as part of the job and reseal it where needed.
Why does my Lennox furnace trip its high-limit switch after duct cleaning? A high-limit trip after cleaning usually points to restricted return airflow, not the cleaning itself. Undersized returns, a collapsed flex run, or a panned joist bay that’s still leaking will keep the static pressure high. We measure the returns and seal the bays so the limit stops tripping.
Is panned-joist return ducting common on Lennox systems in Arlington, and can it be cleaned? It’s common in Arlington’s mid-century housing stock, where central air was retrofitted decades after construction. It can be cleaned, and it should be sealed too, because a leaking pan pulls attic or basement air into the return and re-fouls the blower and coil.
Should I clean or replace the evaporator coil on my Lennox system? Clean it if the coil is sound and the fouling is surface-level; replace it if the coil is damaged or the fouling has gone too far. We inspect the coil and give you a straight answer rather than a default recommendation.
My Lennox blower wheel is coated in dust – does duct cleaning fix that? Only if the wheel itself is cleaned and the source of the dust is sealed off. Cleaning the ducts without cleaning the blower wheel leaves the wheel loaded, and sealing the return bays is what keeps it from happening again. We do both in the same visit.
Book Your Lennox Service in Arlington, VA
If your Lennox system is showing weak airflow, dust streaks at the registers, or a filter cabinet that doesn’t seal, we can take a look. Professional-grade equipment, residential care. One flat price per system, agreed before work starts, with before-and-after photos of your ducts. Call (844) 932-0326. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday. Estimates are free.
Written by the team at Juniper Air Duct Cleaning.