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.
Air Duct Cleaning Company in Collinsville, CT
Air duct cleaning in Collinsville, CT typically runs $350 – $650 for a whole-home system, with most jobs scheduled within a few days and completed in a single visit. What makes Collinsville different from neighboring suburbs is the housing stock: this is a 19th-century mill village where forced-air systems were retrofitted into homes built for coal stoves and fireplaces, not designed for modern HVAC. That retrofit reality, combined with the Farmington River valley’s persistent damp, means ductwork here clogs differently and needs cleaning on a different schedule than newer construction. We’re Hollis Air Duct Cleaning, and our crews serve Collinsville from our Hartford office. Call us at (361) 326-5060 for a written estimate before any work starts.
Why Collinsville Homes Are Different
Collinsville grew up around the Collins Company axe factory, and the mill-worker cottages and multi-story factory-era homes along the Farmington River were never built with ductwork in mind. When forced-air heating and cooling came later, installers had to thread flexible duct and metal pipe through plaster-and-lath walls, low crawl spaces, and irregular floor plans. The result is short, winding runs with tight clearances, undersized returns, and unsealed joints that pull lint and plaster dust from the wall cavities.
The river-valley humidity compounds the problem. Collinsville sits in a pocket where the Farmington River traps moisture, so dust and debris in those retrofitted ducts clumps instead of staying loose and passing through. In winter, long heating cycles create condensation inside metal ductwork; in summer, air conditioning runs hard against muggy valley air. That seasonal stress means microbial growth and debris accumulation happen faster here than in drier, newer suburbs. We’ve cleaned systems in Collinsville where the return trunk was so packed with compacted dust that airflow had dropped by nearly half, and the homeowner had no idea until we showed them the before-and-after with our camera.
Our Main Collinsville Services
Most Collinsville homeowners call us for one of three jobs. Each has its own page with full detail on what we do, what it costs, and how we handle the quirks of local housing.
Air Duct Cleaning in Collinsville
We clean the full supply and return network with a Rotobrush rotary brush system and, where accessible, a Nikro negative-air machine to pull loosened debris out of the home entirely. In Collinsville’s old mill housing, we pay special attention to retrofitted flex runs that sag between joists and trap dust, and we camera-inspect before we quote so the price reflects what we’re actually dealing with. Air Duct Cleaning in Collinsville covers our full process, pricing, and what to expect on the day.

Dryer Vent Cleaning in Collinsville
Dryer vent blockages are a fire hazard, and in Collinsville they’re worse than average because many homes have the dryer vented through thick, original exterior walls with elbows that lint loves to catch on. We run a rotary brush the full length of the vent, measure airflow before and after, and if the duct is damaged or improperly routed, we quote replacement in writing. Dryer Vent Cleaning in Collinsville has the full breakdown.

Duct Sealing in Collinsville
Unsealed joints in retrofitted ductwork pull conditioned air into wall cavities and draw in dust, pollen, and river-valley moisture. We seal accessible joints with mastic and mechanical fasteners, then pressure-test to verify the seal. In Collinsville’s tight, old construction, this often means working in crawl spaces and behind knee walls that newer homes don’t have. Duct Sealing in Collinsville explains when sealing makes sense versus when replacement is the honest call.

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 Collinsville
We stock parts and filtration products from Aprilaire, Abatement Technologies, and Guardsman, and we service all major HVAC brands common in Connecticut retrofit work. Most replacement filters and fittings are on the truck, so we’re not waiting on a parts run. our brands
Pricing for Air Duct Cleaning Company in Collinsville, CT
| Service | Typical range in Collinsville |
|---|---|
| Whole-home air duct cleaning (single system) | $350 – $650 |
| Whole-home air duct cleaning (two systems) | $550 – $950 |
| Dryer vent cleaning (standard routing) | $120 – $220 |
| Dryer vent cleaning (long run or multiple elbows) | $180 – $280 |
| Duct sealing (partial, accessible joints) | $400 – $700 |
| Duct sealing (whole system) | $800 – $1,400 |
| Camera inspection with written report | $75 – $150 |
| Sanitizing treatment (after cleaning) | $100 – $200 |
| Return trunk cleaning (heavily clogged) | $150 – $300 additional |
| Flex duct replacement (per run) | $200 – $400 |
In Collinsville, prices tend toward the higher end of these ranges when ductwork is routed through tight, original construction with limited access panels, or when the system hasn’t been cleaned in over five years and debris is compacted. We price every job in writing before we start, and that number does not change at the door. The 365-Day Done Right Promise covers all work: if something we cleaned or sealed fails within a year, we return and make it right at no charge.
Neighborhoods We Serve in Collinsville
We work throughout the Collinsville village area and surrounding sections of Canton, including the historic mill district along the river and the residential streets that climb the valley walls. Most appointments are scheduled within a few days, with dispatch coordinated from our Hartford office.
- Collinsville Center (historic mill village core)
- River Road area (factory-era homes along the Farmington)
- Maple Avenue vicinity (early worker cottages)
- Valley View and upper Collinsville (post-war and infill)
- Canton town line neighborhoods (mixed-age housing)
Service Area – Cities Near Collinsville
Our crews cover Collinsville and the surrounding Hartford County area, with regular appointments in West Hartford, CT, Hartford, CT, and New Britain, CT. We also handle jobs across the state line in Bristol, PA for property managers with regional portfolios. Scheduling is handled from our Hartford office, and we route crews to minimize drive time and keep appointment windows reliable.
Serving Collinsville, CT - Our Local Coverage Area
We’re based in the Collinsville 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 Collinsville
No permit is required for routine duct cleaning or sealing in Collinsville; these are maintenance tasks, not structural alterations. If we find that duct replacement requires cutting into original plaster or modifying a chase, we’ll flag it and advise whether Canton building department notification is needed. Call (361) 326-5060 if you have questions about your specific setup.
Most Collinsville appointments are scheduled within three to five business days, with dispatch from our Hartford office. We do not overbook, so the window we give you is the window we keep. If you’re coordinating with other contractors or a closing date, let us know and we’ll find a slot that works.
Yes, we clean ductwork in the converted multi-family buildings and condo associations in the historic district. For shared systems or buildings with HOA management, we coordinate access with the property manager and provide a single written quote for the full scope. We carry general liability and workers’ compensation insurance, and our technicians are background-checked and uniformed.
Ready for a written estimate? Call Hollis Air Duct Cleaning at (361) 326-5060. We’ll ask about your home’s age, system type, and any access issues, then give you a flat price for the whole job before we schedule. No per-vent pricing, no bait-and-switch, and every job backed by our 365-Day Done Right Promise.
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 Collinsville Customers Say
"Dryer vent was packed with lint and took two hours to dry a load. Cleaned it out from the roof cap down. One cycle again."
- Paula Q."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.




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