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.
Lennox Air Duct Cleaning in Irvine, CA | Mortons Air Duct Orange County
We clean and repair the duct systems attached to Lennox furnaces and air conditioners throughout Irvine, and we do it as an independent service provider, not a Lennox dealer. The difference matters: our recommendations come from what we find inside your ducts, not from a manufacturer’s service script. Call (831) 244-9367 for a straight answer and a written price before any work begins.

What makes our Lennox work different in Irvine specifically is that we know the houses here, the duct layouts the Irvine Company favored in the 1970s and 1980s, and the construction dust problem in newer neighborhoods like Woodbury. We service all Lennox furnace and AC lines, from Merit Series to Dave Lennox Signature Collection, and we stock the common OEM-compatible parts that get these systems breathing again fast.
Why Irvine Residents Choose Us for Lennox Service
Lennox systems are built well, but the ductwork around them takes a beating in Irvine. The neighborhoods here, from Westpark to Great Park, run air conditioning for six or seven months of the year. That constant recirculation pushes dust through Lennox evaporator coils and into flex ducts in ways a technician only sees after opening enough register covers, which is why our Air Duct Cleaning in Irvine starts with a full register inspection.
Paul Adeyemi, our owner, spent two years at Los Angeles Trade-Technical College learning HVAC systems before narrowing his focus to duct cleaning and indoor air quality. That background shows in how he talks to customers about Lennox equipment: he tells you exactly what the Rotobrush or Nikro equipment will do before anyone touches a vent during our Dryer Vent Cleaning in Irvine or any duct service. Our techs wear shoe covers and lay drop cloths on every visit, and we leave a photo of the cleanup when the job is done. No surprises, no mess, no invoice that doesn’t match the quote.
We’re part of the Cedarwell family of independently owned companies, which means every Lennox job carries the 365-Day Done Right Promise: if it isn’t right, we make it right. That promise is stamped on the paperwork, not hidden in fine print.
Styles & brands we work with




Common Lennox Air Duct Cleaning Problems We Solve in Irvine
- Flex duct sagging or disconnection in attic installations. Many Irvine homes built from the 1970s through the 1990s hold Lennox furnaces in closets or garages with flexible ducts running through hot attics. The plastic straps that hold those ducts up loosen over time, and the ducts sag or separate at the joints. We reseal connections with mastic and rehang ducts so airflow reaches every room.
- Construction dust and drywall particles in registers. In Woodbury and Portola Springs, builders don’t always seal registers while drywall is being hung. That debris settles into the ducts, and the first sign is a dusty smell when the Lennox AC kicks on. We remove the debris with negative-air equipment and HEPA filtration, then clean the register boots by hand.
- Reduced airflow from dirty evaporator coils. Irvine’s long cooling season loads Lennox evaporator coils with a film of dust and pet hair. A fouled coil starves the blower of airflow, so rooms get warmer and the system runs longer. We clean coils with non-corrosive agents safe for Lennox aluminum fins.
- Dust and termite frass in return ducts. Irvine’s drywood termites leave behind tiny pellets, and in tightly sealed Irvine Company homes those pellets can get drawn into return ducts along with household dust. We find this often in single-level tracts near University Park. A thorough return-side cleaning removes the grit and helps the Lennox blower run quieter.
- Hidden cracks in slab ductwork. The original rigid metal ducts under many 1970s ranch homes in Irvine develop cracks over decades. Those cracks leak conditioned air into the soil and can pull in radon and dirt. Before cleaning, we perform a video inspection so you aren’t paying to clean ducts that are already structurally leaking.
Lennox Service in Irvine: What Local Conditions Mean for Your Equipment
Here’s a fact about Irvine that doesn’t show up on a generic brand page: dozens of single-story ranch homes built by the Irvine Company between 1970 and 1982 have original rigid metal ductwork running through the slab foundation. For a Lennox furnace pushing air through those ducts, that’s a completely different maintenance picture than a house with attic flex ducts. Slab ducts shift. They crack. They can pull soil gas and radon into the supply air. We won’t clean a slab-duct Lennox system in neighborhoods like El Camino Real or The Ranch without first running a camera through the accessible sections. If the ducts are cracked, cleaning them would be wasted money and possibly worse, it could hide a leak you actually need to fix.
That’s the kind of judgment call you only get from a company that has worked on hundreds of Irvine homes, not from a national duct-cleaning franchise following a checklist.
Lennox Models & Products We Service in Irvine
We service the full Lennox furnace and air conditioner range found in Irvine homes: Merit Series (the workhorse builders installed by the thousands), Elite Series two-stage systems, and Signature Series variable-capacity units from the Dave Lennox Signature Collection. When a filter housing or register grille needs replacing during duct work, we use OEM or equivalent-quality parts, not whatever is cheapest at the supply house. For duct sealing and insulation repairs, we only use materials that meet Lennox performance specs. That matters when you’re trying to keep a variable-capacity Signature unit running at its rated efficiency. And our repair-first stance means we recommend replacement only when the integrity of the duct or component is gone.
We’ve also worked alongside general HVAC contractors in Irvine when a Lennox system needs a full replacement. Our Lennox sales & service page outlines how we fit into that bigger picture.
See the difference
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Before
AfterLennox Service Pricing in Irvine
What does air duct cleaning actually cost on a Lennox system in Irvine? For a typical two-story tract home, most jobs fall between $450 and $800 depending on the number of returns, the accessibility of the attic, and whether flex duct repair or coil cleaning is included. A smaller single-story home with slab ducts may run less; a large home in Great Park with multiple zones will run more.
Here’s what’s included in the written estimate: a camera inspection of the main lines, cleaning of all supply and return ducts, register and boot cleaning, and a photo record of the work. No per-vent pricing games, no surprise line items. We tell you the price before we open the panel, every time. Call (831) 244-9367 and we’ll quote your Irvine home over the phone.
Serving Irvine, CA - Our Local Coverage Area
We’re based in the Irvine 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 Irvine
Drywood termites are common across Irvine, and their frass, those tiny six-sided pellets, can accumulate in return ducts, especially in tightly sealed homes where air gets pulled from wall cavities and crawl spaces. During Lennox duct cleaning, we check return lines for frass along with construction dust, and remove it with the same negative-air process. If we find active termite damage around a register boot, we’ll tell you to call a pest inspector before we finish, because selling you a duct clean on top of active termites wouldn’t be honest. Call (831) 244-9367 if you suspect frass in your returns.
Santa Ana winds push fine particulates through every gap in a home’s envelope, and Irvine homes with single-pane windows or older weather stripping take in more of it. That dust settles in supply ducts and on the Lennox evaporator coil. We recommend every three to five years for most Irvine homes, but a home near the 5 freeway or in a neighborhood with recent construction may need attention sooner. We’ll assess it honestly, not on a schedule that pads our calendar.
New construction in Portola Springs often leaves drywall dust and debris in the ducts because builders seal registers late in the process or skip it entirely. When the Lennox blower runs, that dust burns off or blows into rooms as a stale, dusty odor. We’ve seen this enough in first-year Portola Springs homes that we check for it as a standard part of our initial inspection. It’s not a defect in your Lennox furnace; it’s a build-site issue, and it cleans out completely with the right equipment. Call (831) 244-9367 to schedule an inspection.
Yes. We reseal disconnected or sagging flex duct connections with mastic and rehang the duct with proper strapping, then verify airflow at each register. Attic flex duct issues are among the most common Lennox-system problems we fix in Irvine homes from the 1970s to the 1990s. The repair is often straightforward, and the airflow improvement is immediate. Call (831) 244-9367 and we’ll schedule a look at your attic ducts.
It is, particularly in single-story Irvine Company homes built in the 1970s with original rigid metal ducts under the slab. Cracks develop over decades, and they leak conditioned air into the ground while pulling in dirt and radon. We always recommend a video inspection of slab ducts before cleaning, because cleaning without fixing the cracks just moves air through a broken system. Call (831) 244-9367 to discuss a slab duct inspection.
Service Areas Near Irvine
We serve Irvine and the surrounding Orange County communities where Lennox systems are common: Mission Viejo, Lake Forest, Tustin, Santa Ana, Costa Mesa, and Laguna Hills. See our Irvine service area page for a full breakdown, or check Lennox service in Mission Viejo and Lennox service in Orange County if you’re just outside Irvine.
Book Your Lennox Service in Irvine Today
If your Lennox system smells dusty, blows weak, or hasn’t been cleaned in years, call (831) 244-9367. We’ll give you a written price before any work starts, protect your floors with shoe covers and drop cloths, and leave you with photos of the cleanup. Paul Adeyemi and the team at Mortons Air Duct Orange County handle Lennox duct work across Irvine every week.
Written by Paul Adeyemi, Owner at Mortons Air Duct Orange County, serving Irvine since 2005.