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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AfterAir Duct Cleaning Company in Exton, PA
Most Exton homes were built during Chester County’s suburban boom between the 1980s and early 2000s, which means their duct systems are now aging out of builder-grade materials and into the zone where flex duct deterioration, leaky joints, and decades of accumulated debris start showing up as uneven temperatures, dust that won’t quit, and systems that run too long. We clean and seal these aging duct networks every week in Exton, and the work is almost always a retrofit job in finished basements and attics rather than the straightforward access you find in older gravity-system homes. If you’re noticing your HVAC working harder than it should, call us at (361) 326-5060 for a free estimate and a written price before any work starts.
Why Exton Homes Are Different
Unlike Philadelphia rowhomes with plaster walls and gravity furnaces, Exton’s duct cleaning work centers on retrofitting and sealing aging flex-duct networks tucked into finished basements and attics where access is tight.
The local climate drives year-round system use, humid Mid-Atlantic summers and cold winters mean the blower runs hard in every season, and the region’s heavy spring pollen and fall leaf debris get pulled straight into returns. Many Exton subdivisions were built over former farmland, so we regularly see fine agricultural dust and mold spores from the soil that settled into ductwork during construction and never fully cleared out. Neighborhoods off Route 100 show this pattern repeatedly. The Garrison Standard means we arrive inside the quoted window, price the job in writing before touching anything, and leave the site clean.
Our Main Exton Services
Exton homeowners call us most often for these three services, each with its own local conditions and approach:
Air Duct Cleaning in Exton
We use Rotobrush rotary brush systems and Nikro negative-air machines to agitate and extract debris from flex-duct runs that have settled over decades, especially in subdivisions where agricultural dust from former farmland still circulates. The job includes all supply and return lines, the main trunk, and a post-cleaning walkthrough with the homeowner. Air Duct Cleaning in Exton covers our full process and what to expect.
Dryer Vent Cleaning in Exton
Dryer vent runs in Exton’s 1980s – 2000s townhomes and single-family homes often span longer distances through finished walls to exterior terminations, and lint buildup in these extended runs is a genuine fire hazard we address with rotary brushes and high-velocity air tools. We inspect the full run, clean to the termination, and verify airflow before we leave. Dryer Vent Cleaning in Exton has the details.
Duct Sealing in Exton
Exton’s aging flex-duct systems develop leaks at joints and seams that bleed conditioned air into attics and basements, and we seal these with mastic and mechanical fasteners where accessible, following up with pressure testing to confirm results. This is often the most cost-effective upgrade for homes with high utility bills and rooms that never reach temperature. Duct Sealing in Exton explains our approach.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Exton
We stock parts and filtration products from Honeywell, Aprilaire, and Abatement Technologies for Exton homes, and our crews carry common components so most jobs finish in one visit without waiting on ordered parts. See our brands for the full equipment roster.
Pricing for Air Duct Cleaning Company in Exton, PA
| Service | Typical range in Exton |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $550 |
| Whole-home air duct cleaning (two systems) | $550 – $750 |
| Dryer vent cleaning (standard run) | $120 – $180 |
| Dryer vent cleaning (extended or rooftop termination) | $180 – $250 |
| Duct sealing (partial, accessible leaks) | $400 – $650 |
| Duct sealing (whole-system with pressure test) | $800 – $1,400 |
| HVAC sanitizing/mold inhibitor application | $75 – $150 |
| Return duct cleaning (add-on) | $75 – $125 |
Prices in Exton push toward the higher end when ductwork is buried in finished basement ceilings or when we find construction debris from prior renovations blocking main trunks. We give one flat price per system, agreed in writing before any work starts, and that number does not move at the door.
Neighborhoods We Serve in Exton
We run scheduled appointments across Exton’s full spread, from the village core near the historic district out to the newer subdivisions along Route 100. Most Exton appointments book within a few days, and dispatch is coordinated from our Philadelphia office with crews serving the area locally.
- Marchwood
- Lionville (nearby, with Exton overlap)
- Whitford Hills
- Exton Crossing
- Neighborhoods along Route 100 corridor
Service Area – Cities Near Exton
Our crews work the full Chester County corridor and regularly schedule jobs in Downingtown, PA, West Chester, PA, Malvern, PA, and Lionville, PA alongside our Exton appointments. If you’re unsure whether your address falls inside our service radius, call us and we’ll confirm while you’re on the line.
Serving Exton, PA - Our Local Coverage Area
We’re based in the Exton 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 About Air Duct Cleaning Company in Exton
No permit is required for standard duct cleaning or dryer vent cleaning in Exton. Duct sealing that involves modifying ductwork may need to comply with Chester County building codes if it’s part of a larger HVAC renovation, but our standard sealing work does not trigger permitting. We’ll flag it before we start if your job is the rare exception.
We typically book Exton appointments within three to five business days, with dispatch coordinated from our Philadelphia office. Calls are answered by a live person 24 hours a day, so you can schedule anytime without waiting for a callback. Call (361) 326-5060 to check current availability.
Yes, and that’s exactly why Exton jobs differ from older homes with exposed utility spaces. Our technicians are trained to work in finished areas without damaging drywall or flooring, and we carry drop cloths, corner guards, and shoe covers as standard. We leave the site clean, every time, as required by The Garrison Code.
Ready for a written estimate? Call Hollis Air Duct Cleaning at (361) 326-5060. We’ll give you one flat price per system, agreed before any work starts, backed by our 365-Day Done Right Promise. Roy Castellanos and our team are standing by.
What happens when you call
- 1A real person answersNo phone trees - talk to a local air duct cleaning pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Exton Customers Say
"No sales pitch. Told me which parts of the system were fine and only cleaned what needed it."
- Ted L."They checked each section with a camera and showed me the dust before and after. Thorough and honest."
- Nicole H."Duct sealing along with the cleaning cut our summer bill. Straight talk and fair price."
- Gwen O.