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.
Fast, Reliable Air Duct Cleaning Across Port Washington
Air duct cleaning in Port Washington typically costs $320 – $680 for a full system, with most single-family homes falling between $390 and $540 depending on the number of air handlers and the length of duct runs. We schedule most Port Washington jobs within 3 to 5 business days and arrive inside a written window, not a vague “sometime this afternoon.” If you want a straight answer on what your system needs and what it will cost, call (516) 559-4917.
Port Washington is a town we know block by block. Homes near Manhasset Bay and Hempstead Harbor deal with salt-laden air that works its way into return ducts and reacts with humidity. Homes a mile inland deal with pollen from mature oak and maple canopies. A crew that treats both the same way misses half the job. That is why our Air Duct Cleaning team runs a camera inspection on every system before we put a brush in it.
Why Hollis Air Duct Hempstead Is Port Washington’s Preferred Air Duct Cleaning Company
We are part of the Garrison Partners family, founded in 2004. Roy Castellanos leads our team here, and he holds every technician to The Garrison Code: arrive inside the quoted window, price in writing before any work starts, complete the job by the book, and leave the site clean. No exceptions. Port Washington homeowners have told us flat out that they have been burned by crews who quoted one number on the phone and a different number at the door. That does not happen here because the price is written down before we touch a single vent.
Our technicians are background-checked and uniformed, so the person walking into your home is the person we said would walk into your home. Phones are answered by a live person 24 hours a day, 7 days a week, not a voicemail loop that puts you off until Monday. We serve Air Duct Cleaning in Port Washington with professional-grade equipment from Rotobrush, Nikro, and Abatement Technologies paired with filtration products from Honeywell and Aprilaire. What that means for you: the same tools commercial crews use, on a single-family house, with a written report of what came out.
Styles & brands we work with
Residential Air Duct Cleaning in Port Washington
Residential Air Duct Cleaning in Port Washington is not a one-size job because Port Washington is not a one-size town. A 1950s ranch on a tree-lined street in Flower Hill has different duct conditions than a 1990s colonial on a former estate lot near Baxter Estates. We inspect each system before we quote it, so the price reflects your house, not a generic template.
Full System Cleaning With Camera Documentation
We clean supply and return ducts, all registers, and the air handler cabinet. Before we start, we run a video inspection so you see the buildup. After we finish, we hand you before-and-after photos and a NADCA standards checklist. A full system cleaning in Port Washington runs $390 – $540 for a typical single-air-handler home. Larger homes with long runs or two systems run $550 – $680.
Supply and Return Duct Targeted Cleaning
Some Port Washington homes need only the return side or the supply side addressed. If the camera shows heavy buildup in returns but clean supplies, we will tell you. We do not sell a full cleaning when a targeted job will do. Supply-only or return-only cleaning in Port Washington typically runs $180 – $280, depending on access and run length.
Commercial Air Duct Cleaning in Port Washington
Commercial Air Duct Cleaning in Port Washington covers offices, retail spaces, restaurants, and medical suites from the commercial streets near Main Street up through the flex spaces along Shore Road. Commercial systems carry higher occupancy loads and often run longer hours, which means filters load faster and duct interiors accumulate more per square foot than a residence. We schedule commercial work off-peak where possible to keep your operation moving.
Multi-Zone and Rooftop Unit Cleaning
Most Port Washington commercial spaces run packaged rooftop units or split systems with multiple zones. We clean the full duct network tied to each unit, including plenums and diffusers. A small commercial space with one rooftop unit and 8 to 12 diffusers typically runs $450 – $700 in Port Washington. Larger multi-zone buildouts run $700 – $1,200 depending on access, occupancy, and system count.
Documentation for Property Managers and Business Owners
We provide a written report after every commercial job: what was cleaned, what was found, and photo documentation of before and after. If your lease or insurer asks for proof of duct maintenance, you will have it in hand. Roy Castellanos personally reviews every commercial report before it goes out.
Trusted Brands We Service in Port Washington
We work on and around systems from every major manufacturer you are likely to find in a Port Washington home, including Honeywell filtration setups, Aprilaire media cabinets, and Abatement Technologies inline components. Our team stocks common filters and access materials locally so we are not walking off a Port Washington job because we forgot a 16x25x4 media filter. Faster turnaround, fewer return trips, and a system that runs correctly when we leave.
Common Air Duct Cleaning Problems We See in Port Washington Homes
- White chalky residue on return vents in Manorhaven and Beacon Hill. This is salt reacting with humidity inside the duct, not normal dust. It requires agitation and HEPA-filtered negative pressure to remove properly, not a quick brush pass.
- Pollen-clogged returns in inland neighborhoods like Flower Hill and Port Washington Estates. Mature tree canopies drop heavy pollen loads that pack into return ducts and reduce airflow. Homeowners notice it as rooms that never quite cool evenly in August.
- Retrofitted central air in 1920s through 1960s homes with undersized or improvised duct runs. Many older Port Washington houses got central air added decades after they were built, and the ductwork is not right. That means dust builds in low spots and airflow is uneven on long runs.
- Multi-zone humidity problems in newer waterfront houses. Homes near Hempstead Harbor with multiple air handlers often show microbial growth in zones that serve lower levels or rooms with high humidity exposure. A camera inspection catches this before it becomes a visible mold problem at the register.
See the difference
Before
After
Before
After
Before
AfterPricing for Air Duct Cleaning in Port Washington, NY
Here are straight numbers for Port Washington. A full residential system with one air handler runs $390 – $540. A two- or three-system home with long runs runs $550 – $680. Supply-only or return-only cleaning runs $180 – $280. Commercial jobs start around $450 for small single-unit spaces and run up to $1,200 for larger multi-zone systems. What affects the number: the count of air handlers, total square footage served, access to the air handler, and how much buildup the camera shows. We price per system, not per vent, and the number we write down before we start is the number you pay. Call (516) 559-4917 for a free estimate.
We Also Serve Cities Near Port Washington
Our crews regularly run routes through the surrounding area. If you are in Flushing, Westbury, Hempstead, or Syosset, we bring the same written pricing, camera inspection, and 365-Day Done Right Promise to your door. You will get the same Port Washington standard without the guessing game.
Serving Port Washington, NY - Our Local Coverage Area
We’re based in the Port Washington 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 in Port Washington
Homes near Manhasset Bay draw in salt-laden air that deposits a fine crystalline residue inside return ducts, especially from late summer through fall when humidity peaks. That residue mixes with normal household dust and, because salt attracts moisture, it creates conditions where microbial growth can take hold inside the duct lining. A standard brushing will not remove the chalky white film it leaves behind. We use agitation tools and HEPA-filtered negative pressure to break the salt bond and extract it entirely. If you are within a few blocks of the bay, this is the difference between a cleaning that lasts and one that leaves the root problem behind. Call (516) 559-4917 and we will show you what your ducts look like on camera before we quote anything.
Because a flat fee on a three-system home in Port Washington means one of two things: either you are overpaying for smaller zones that need less work, or the crew is rushing the largest run because the price does not support the labor. Each air handler feeds its own duct network with its own footage, its own access points, and its own buildup level. We price each system based on what the camera shows. That way you pay for what your house actually needs, not a number that was guessed over the phone. For an exact per-system quote on your Port Washington home, call (516) 559-4917.
You should expect written documentation that proves the work was done, not a verbal “all set.” Every Port Washington job we complete includes before-and-after photos from the camera inspection, a NADCA standards checklist that itemizes what was cleaned on each system, and a written record of what was found and removed. If something is in those ducts, you will see it in the photos. Roy Castellanos reviews the documentation before it leaves our office. If a contractor cannot show you what they cleaned, assume they did not clean it. Call (516) 559-4917 for a free estimate and we will show you what proper documentation looks like.
Yes, and this is a common situation in Port Washington where many homes from the 1920s through the 1960s had central air added later with improvised or undersized duct runs. The risk is that heavy agitation on brittle duct material can tear seams or knock loose poorly sealed joints. We run a camera inspection first to identify the duct material and condition, then match the cleaning method to that specific system. Older sheet metal with loose joints gets gentler agitation and lower negative pressure than a rigid duct in a newer home. We clean it without wrecking it, and we document the condition before and after. Call (516) 559-4917 to schedule an inspection.
That white chalky film is salt residue, and it is common in Manorhaven and Beacon Hill because of the proximity to Manhasset Bay and Hempstead Harbor. Salt-laden air enters the return path and the salt crystallizes on the metal surfaces inside ducts, where it mixes with humidity and household dust. Over time it forms the chalky deposit you see at the vent. It will not vacuum out. It requires agitation and HEPA-filtered negative pressure to break the bond and extract the salt fully. If you are seeing it on the visible part of the return, there is more inside. Call (516) 559-4917 and we will show you exactly what is behind that vent.
What Port Washington Homeowners Should Demand Before Any Duct Cleaning
Before you hire anyone in the 11050 or 11051 zip code, demand three things. One: a camera inspection before any work starts, so you and the technician both see the same buildup. Two: written pricing before the tools come off the truck, not the van. Three: before-and-after photos and a standards checklist when the job is done. If a crew will not provide those, walk. The work is inside your walls, which means the only way to know it happened is documentation.
We cleaned a three-zone house in Beacon Hill where the return ducts showed the white, chalky residue typical of salt-humidity interaction. Our techs ran a camera inspection first, then used our Rotobrush with agitation tools and HEPA-filtered negative pressure to remove the crystallized salt and mold from the supply and return ducts. After the job, we provided before-and-after photos and a NADCA standards checklist so the homeowner could see exactly what was cleared from the long runs feeding each air handler.
Call (516) 559-4917 for a free estimate on air duct cleaning in Port Washington. You will get a live person on the line, a straight answer on scope, and a written price before we do anything else.
Written by Roy Castellanos, Owner at Hollis Air Duct Cleaning, serving Port Washington and the surrounding Long Island communities.