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.
Aprilaire Coil Cleaning: The Hempstead Owner’s Guide
Aprilaire coil cleaning in Hempstead typically runs between $180 and $420 for a full evaporator coil service, depending on access and how badly the fins are impacted. We stock Aprilaire-compatible coil cleaning equipment on the truck and can usually schedule within 48 hours, not same-day, because proper coil work takes time and shouldn’t be rushed.
Most Hempstead homeowners discover their coil needs attention the hard way: the AC runs longer than it used to, the air coming out of the registers isn’t as cold, or the system iced up overnight. What they’re actually seeing is a coil that’s been suffocating under dust, pet hair, and the fine grit that older Long Island homes push through their ductwork. When air can’t move across the coil, the whole system strains.
Which Aprilaire Models This Applies To
Aprilaire doesn’t manufacture evaporator coils themselves. Their lineup focuses on whole-home humidifiers, air purifiers, and filtration systems that mount to your existing HVAC equipment. What matters for coil cleaning is which Aprilaire accessory your system carries, because a clogged Aprilaire media filter or an overworked Aprilaire humidifier directly affects how fast your coil collects debris.
If you have an Aprilaire 500, 600, or 700 series humidifier mounted on the supply plenum, mineral buildup from the water panel can migrate downstream and coat your evaporator coil. Same story with Aprilaire 210, 410, and 510 media air cleaners: when filters are past their six-to-twelve-month service interval, the bypass air carries fine particulates straight onto the coil face. We’ve pulled coils in Hempstead homes where the Aprilaire filter collapsed entirely and the pleats were pressed flat against the coil housing.
For the coil itself, OEM and quality aftermarket options are functionally equivalent for cleaning purposes. What you’re paying for is labor, access, and the chemical formulation used, not a proprietary Aprilaire part. We use commercial-grade evaporator coil cleaners that break down the bio-film without eating the aluminum fins. If your system is a Trane, Lennox, or Carrier unit with Aprilaire accessories hung off it, the coil cleaning procedure stays the same. Aprilaire is an independent brand; we’re an independent service provider, not affiliated with Aprilaire.
Styles & brands we work with




Signs Your Aprilaire Coil Cleaning Is Failing
- Warm air at the registers on a hot day. The coil can’t pull heat out of the air moving across it because the fin surfaces are insulated with a layer of matted debris. Your compressor is running, but the heat exchange isn’t happening.
- Frost or ice forming on the copper lines outside. Reduced airflow across a dirty coil drops the refrigerant pressure low enough to freeze the coil. In Hempstead’s July humidity, a frozen coil is usually a clogged coil.
- Musty smell when the blower kicks on. Damp debris on the coil face breeds mold and bacteria. That odor is living organic matter sitting in your airstream, and it recirculates through every room.
- Higher electric bills without a change in usage. A restricted coil forces the compressor to cycle longer and harder. We see 15 to 25 percent efficiency losses on heavily fouled coils in older Hempstead homes.
- Water pooling around the air handler. When a coil is partially blocked, condensation doesn’t drain properly. Water spills off the coil edges and onto the floor of the equipment closet instead of moving through the condensate pan.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
Coil cleaning in Hempstead lands between $180 and $420 all-in for a single system. That’s not a per-coil quote you’ll see change at the door. It covers removal of the access panel, inspection of the coil condition, application of the cleaning agent, rinsing, checking the condensate drain, and reassembly. If the coil has to come out for cleaning, which happens on older units where the coil is boxed in tight, expect the higher end of the range.
What pushes cost up: coil location in an attic with limited clearance, a system that hasn’t been touched in eight-plus years, or a drain line that also needs clearing. We write the price down before we start and it doesn’t move. The work falls under our 365-Day Done Right Promise: if the coil re-fouls within a year due to incomplete cleaning, we come back at no charge and do it again.
| Service | Typical Range |
|---|---|
| Standard evaporator coil cleaning (accessible unit) | $180 – $260 |
| Coil cleaning with drain line flush | $240 – $320 |
| Heavy fouling or tight access (attic, crawlspace) | $320 – $420 |
| Coil removal and deep clean | $380 – $450 |
DIY or Call Us?
You can safely check a few things yourself. Pull the filter and look at the coil face with a flashlight. If you see a blanket of gray fuzz, that’s your answer. You can also check the condensate drain with a wet/dry vac from the outside opening.
What you shouldn’t do is start spraying household cleaners or brushing the fins. Evaporator coil fins bend with almost no pressure, and once they’re flattened, airflow drops permanently until someone straightens them. Caustic cleaners eat the aluminum. Coil cleaning chemicals need to be matched to the coil and rinsed thoroughly, or you’re trading one problem for a bigger one. Call Roy Castellanos and the crew at (516) 559-4917 and we’ll price it in writing before anything gets touched.
FAQs
In Hempstead, every three to five years under normal conditions with regular filter changes. Homes with pets, older ductwork, or Aprilaire humidifiers running hard through the winter may need it every two years. If your Aprilaire filter has been neglected, plan on doing the coil at the same time you get back on schedule.
No. The coil itself rarely fails from dirt alone. Cleaning restores it. If the coil has a refrigerant leak or the fins are so corroded they’re crumbling, that’s a replacement, but that’s a separate diagnosis and we’ll tell you straight which one you need before any work starts.
Ninety minutes to three hours, depending on access and severity. Most single-system jobs in Hempstead are done in under two hours. We’re not leaving until the coil is clean, the drain is clear, and the site is back the way we found it.
We carry commercial-grade coil cleaners, fin combs, and drain line tools on the truck for every job we run, whether your system is Aprilaire, Trane, Lennox, or Carrier. If your Aprilaire humidifier water panel or media filter also needs replacing, we stock common sizes and can take care of that on the same visit.
Clean ducts, straight answers – that’s the whole job.
If your coil hasn’t been cleaned in years and your AC is working harder than it should, call (516) 559-4917 for a free estimate. We’ll give you a written price before anything gets touched, and every job carries the 365-Day Done Right Promise. Roy Castellanos and the Hollis Air Duct Hempstead crew have been inside enough Hempstead attics and utility closets to know exactly what your coil looks like before we even open the panel.
Written by Roy Castellanos, Owner, Hollis Air Duct Hempstead at Hollis Air Duct Hempstead, serving Hempstead and nearby areas.