How Sequoia Air Duct & Vent Cleaning Greater Allentown Was Born in Allentown

Back in 2007, we got a call from a retired teacher on North 19th Street in Allentown. She’d paid a national chain $800 to clean her air ducts, and three weeks later, her granddaughter’s asthma was worse than ever. We crawled through her system with a scope camera and found the truth: they’d run a vacuum hose for twenty minutes, billed her for “complete sanitization,” and left decades of compacted dust, a dead bird in the return, and a disconnected flex duct pumping attic air straight into her granddaughter’s bedroom.

That night, we sat in our truck outside her house and made a decision. The air duct cleaning industry in Allentown was broken—high-pressure sales, bait-and-switch pricing, technicians who couldn’t tell a supply plenum from a return trunk. We’d watched too many neighbors get taken advantage of by out-of-town franchises that treated the Lehigh Valley like a revenue zip code. We promised ourselves we’d build something different: a company where the person quoting the job is the same person crawling in your crawl space, where the price we say is the price you pay, and where we’d rather lose money on a job than lose sleep over doing it halfway. Sequoia started the next morning with a used Rotobrush machine, a borrowed ladder, and that grandmother’s thank-you note taped to our dashboard.

Larry Peterson’s Personal Connection to the Air Duct Cleaning Trade

We didn’t stumble into this work—we were pulled into it by our hands and lungs. Larry grew up in a house in Whitehall Township where the heat never worked right. Every winter, his father would tear apart the basement furnace with a flashlight in his teeth, cursing at sheet metal, while Larry held the light and learned to read the story a duct system tells: the rust streaks that mean moisture intrusion, the black soot that screams backdrafting, the particular whistle of a collapsed flex duct behind a wall.

The smell of heated dust and oil burner exhaust still takes Larry back to that basement. It’s not a pleasant smell, but it’s honest. It smells like something that can be fixed if you’re willing to get dirty and pay attention.

Our defining moment came about three years in, on a 97-degree July day in Emmaus. A family had been told by two other companies that they’d need a complete $6,000 duct replacement because of “unreachable mold.” Larry spent six hours in their 140-degree attic, working a Nikro HEPA vacuum and a hand brush into every branch line. Turned out to be ordinary mildew on the register boots, not systemic mold at all. The mother cried when we showed her the scope footage—relief, not fear. That’s when we understood this work isn’t about ducts. It’s about the air a newborn breathes at 3 AM. It’s about the veteran in Catasauqa who finally sleeps through the night without coughing. It’s about being the person who tells the truth when lying would be more profitable.

Seventeen years later, we still get out of bed for that. If we weren’t doing this, Larry would probably be restoring old houses or fixing vintage motorcycles—something that rewards patience and punishes shortcuts. This work chose us because it demands exactly that.

Meet Larry Peterson — The Person Behind Every Job

Larry Peterson, Owner & Lead Technician at Sequoia Air Duct & Vent Cleaning Greater Allentown. For 17 years, he’s been the one answering your call, walking your property, and climbing into your attic or crawl space. No sales team. No subcontracted crews. Larry holds NADCA-aligned training in HVAC system cleaning and has worked extensively with Rotobrush and Nikro equipment, plus indoor air quality assessments using Honeywell and Aprilaire monitoring tools.

What separates Larry from a franchise technician? He still carries a notebook where he sketches every duct system he works on—over 3,000 now—because no two Allentown homes are identical. When he’s not working, he’s rebuilding a 1974 Honda CB750 in his garage in Northampton, teaching his nephew to weld, or volunteering with the Allentown Rescue Mission’s home repair program. That same stubborn patience he applies to a carburetor rebuild is what he brings to your 1920s Tudor with its original galvanized ductwork.

Here’s Larry’s personal commitment to you: When you hire Sequoia, you get Larry. Not a dispatcher. Not a trainee. The same person who built this company from a used machine and a promise. He’ll treat your home like his mother’s, and he’ll tell you the truth even when it’s not what you want to hear.

Our Promise to Allentown Homeowners

Honest pricing, always. After that grandmother on North 19th Street, we instituted a hard rule: we quote by the system, not by the “surprise” we find. Our estimates are free, detailed, and binding. We’ve walked away from jobs where the homeowner expected $200 and we knew it needed $800—we’d rather lose the work than break our word.

Quality that outlasts the invoice. We use commercial-grade HEPA equipment and refuse to cut corners on access panels or sealants. In 2019, we redid a Bethlehem job at our own expense because a supplier’s mastic failed six months later. The homeowner didn’t ask. We just showed up.

We stand behind every job. Our warranty isn’t a piece of paper—it’s Larry’s cell number. If something feels off, you call, we come. No forms, no runaround. That’s how we’ve earned 756 reviews averaging 4.8 stars across Allentown, Whitehall Township, and Emmaus.

Our Credentials

State-licensed Pennsylvania contractor, fully compliant with Department of Labor & Industry requirements
Insured & bonded — comprehensive liability and workers’ compensation coverage for your protection
17+ years serving Allentown and the greater Lehigh Valley with consistent, documented service history
756 verified reviews averaging 4.8 out of 5 stars across Google, Yelp, and industry platforms

Here’s why these matter when you’re letting someone work inside your home: Pennsylvania state licensing means we’ve passed background checks and competency standards—not every operator in Allentown can say that. Insurance and bonding means if a technician is injured on your property or accidental damage occurs, you’re never held financially responsible. Those 756 reviews aren’t numbers to us; they’re individual homeowners in Bethlehem, Catasauqua, and Fullerton who vouched for our character after we left their house. In an industry plagued by fly-by-night operators, these credentials are your proof that we’ll be here tomorrow—and next year—if you need us.

Rooted in Allentown

We’ve cleaned ducts in the historic homes of West Park, the post-war ramblers of West End, and the new construction popping up near the PPL Center. Larry’s kids went to school in the Parkland district. We’ve sponsored youth teams at the Allentown Fairgrounds Farmers Market and donated services to the Sixth Street Shelter’s renovation. When the derecho hit in 2020, we spent two weeks helping Easton and Phillipsburg families dry out and restore flooded HVAC systems at cost. This isn’t our territory—it’s our neighborhood. The same air you breathe is the air our family breathes. That’s not marketing. That’s just living here.

Written by Larry Peterson, Owner at Sequoia Air Duct & Vent Cleaning Greater Allentown, serving Allentown since 2007.