Level 1 sweep and inspection to the NFPA 211 annual standard - flue, crown, cap, and flashing checked and photographed
Chimney sweep logs do not sweep chimneys. They loosen some creosote - which then falls where a brush and vacuum still have to collect it.
Fast, Reliable Chimney Inspection Across Hempstead
A chimney inspection in Hempstead typically costs $165 – $450 depending on the level and whether we need to run a camera up the flue. Most inspections in Hempstead are booked within 3 to 5 business days, and you’ll get a written report with photos before we leave the driveway. Chimney Inspection is the one service we tell every Hempstead homeowner to schedule before burning season starts, because the housing stock here has a problem most other towns don’t: dual-flue chimneys that half-converted to gas and left the fireplace flue to rot in salt air.
If you’re anywhere in Hempstead and haven’t had the fireplace flue looked at in years, call (336) 863-3889. The inspection itself is straightforward, and the report tells you exactly what’s safe and what can wait.
Why Alcott Chimney Sweep Is Hempstead’s Preferred Chimney Inspection Company
We’ve been doing our Chimney Sweep in Hempstead since 2002, and we’ve seen enough Hempstead chimneys to know the failure pattern before we even set up the ladder. The Cape Cods and ranches built between 1945 and 1965 along Peninsula Boulevard, in Uniondale, and through the numbered streets of Levittown almost all share the same original design: a single-wythe brick chimney with two flues, one for an oil burner and one for a fireplace. When the furnace went gas, the furnace flue got a new liner. The fireplace flue got nothing.
Ruben Castellano has built Alcott around one principle: you should know exactly who’s coming to your door and exactly what they’ll charge before the work starts. Every Hempstead customer gets a written price before we touch anything, a written guarantee on any repair, and a technician whose name and photo arrive on your phone before the truck does. The technician at your door shows a photo ID that matches the name you were sent. That’s the Threshold Standard, and it applies to every single visit.
We inspect chimneys across Hempstead with the same trade materials the job actually needs: DuraFlex for liner systems, HeatShield for flue resurfacing, and Copperfield for caps and chase covers when the salt wind has eaten through the original.
Chimney Leak in Hempstead
A chimney leak in Hempstead usually starts at the crown or the top-row mortar joints, and the salt-laden air coming off the Atlantic 20 miles south makes it worse faster than you’d expect. We trace the water entry point, repair what’s failed, and tell you what’s still fine. A leak inspection tied to a repair typically lands between $240 and $560 on Hempstead homes, depending on how much crown rebuilding and tuckpointing the exposure has forced.
Salt Air and Crumbling Crowns
Hempstead chimneys face a coastal corrosion cycle that inland towns don’t. Salt spray carries chlorides into porous brick and mortar, and each freeze-thaw winter cycle pops a little more material loose. What starts as a damp smell on rainy days becomes a crown with missing chunks, and then water runs down the flue and into the smoke chamber.
When a Leak Becomes a Liner Problem
Sometimes the water isn’t coming through the brick at all. A cracked clay tile inside the flue lets condensation and rain reach the chase, and the leak shows up as staining on the ceiling near the chimney. That’s when we run the camera to see the inside, because fixing the brick without fixing the liner just moves the problem around.
Chimney Camera Inspection in Hempstead
A chimney camera inspection in Hempstead runs $215 – $390 standalone, but it’s included in our Level 2 inspection because we run the camera on nearly every Hempstead job anyway. The camera shows us exactly what’s inside the flue: cracked clay tiles, failed mortar joints, third-degree glazed creosote, or a liner that’s doing just fine. You see the photos, and nothing gets recommended without camera evidence you can look at yourself.
What the Camera Shows
On Hempstead’s dual-flue chimneys, the camera almost always finds the same thing: the furnace flue looks okay because it was relined for gas, and the fireplace flue has 60 to 80-year-old clay tiles with gaps and cracks. That’s not a scare tactic. It’s what we document week after week on Levittown Capes and Baldwin ranches.
Real Estate Transactions
Nassau County home inspectors know to check the fireplace flue on older Hempstead homes, and a camera inspection is what sellers use to prove the chimney isn’t a liability. Buyers need their own inspection too. We do real estate inspections in Hempstead with a written report the buyer, seller, and attorneys can all read without a translator.
Trusted Brands We Service in Hempstead
We stock and service DuraFlex liner components, HeatShield resurfacing products, and Copperfield caps and chase covers, because those are the brands specified by chimney professionals and they hold up to Hempstead’s coastal exposure better than box-store equivalents. When a Hempstead inspection shows a fireplace flue that needs relining, we don’t wait a week for parts. The materials are on the truck, and the job gets scheduled fast. If you’re converting from oil to gas and the furnace flue needs resizing, we handle that with the right-gauge liner rather than making an old one fit.
Common Chimney Inspection Problems We See in Hempstead Homes
- Dual-flue chimneys half-converted to gas. The furnace flue got a new liner when the homeowner switched from oil to gas, but the fireplace flue is still running on cracked 60 to 80-year-old clay tiles. That’s the most common inspection finding in Hempstead, and it’s the one that lets combustion gases into the chase.
- Salt-accelerated mortar erosion. Chimneys within a few miles of the Atlantic get hit with salt-laden air that accelerates spalling on exposed brick and eats mortar joints faster than inland Long Island. The top 18 inches of the chimney usually fail first.
- Heavy creosote in the fireplace flue. Because the fireplace flue often goes untouched during a fuel conversion, years of wood burning build creosote without anyone sweeping it. Third-degree glazed creosote is a chimney fire waiting for a spark.
- Wood stoves running as primary heat in outlying Hempstead properties. Some homes in the rural edges of the township, and even a few older Capes in Uniondale and Levittown, run wood stoves as the main heat source from November through March. That produces heavy creosote loading and shortens the safe sweeping interval to once a season, sometimes twice.
Pricing for Chimney Inspection in Hempstead, NY
A Level 1 inspection in Hempstead runs $165 – $225 when paired with a cleaning, which is what most homes need annually. A Level 2 inspection with a full camera pass runs $275 – $450, and that’s what you want if you just bought the house, converted fuels, or haven’t had the chimney looked at in years. Level 3 inspections, which involve accessing concealed flue areas, start around $500 and go up from there depending on what we have to open. The price depends on the level, not on how we feel that day. Every estimate is written, and you approve it before we start.
Call (336) 863-3889 for a free estimate, and we’ll tell you which level your Hempstead chimney actually needs. No pressure, no vague range. You’ll know the number before we get off the phone.
We Also Serve Cities Near Hempstead
Alcott Chimney Sweep serves Hempstead and the surrounding Nassau County communities, including Freeport, Levittown, Hicksville, and Long Beach. If you’re in one of those towns, the same background-checked, identity-verified technicians and the same written pricing apply. Our scheduling for the Chimney Inspection in Hempstead area coordinates from the New York City office, but the crews live and work here on the island.
Serving Hempstead, NY - Our Local Coverage Area
We’re based in the Hempstead 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 Chimney Inspection in Hempstead
Yes. The furnace flue and the fireplace flue are separate channels inside the same chimney. When you converted from oil to gas, the furnace side got a new liner sized for gas appliances, but the fireplace flue still has the original clay tiles from the 1940s, 50s, or 60s. In Hempstead, the salt air erodes the mortar joints holding those tiles, and the fireplace flue is almost always the one that fails first. Call (336) 863-3889 and we’ll run the camera up that fireplace flue and show you exactly what’s inside.
It does. Hempstead sits roughly 20 to 25 miles from the Atlantic, and the prevailing coastal wind carries salt-laden air that accelerates mortar joint erosion and brick spalling on exposed chimneys. Moisture gets in through those degraded joints, then freeze-thaw cycles in January and February push the damage deeper. Homes within a few miles of the water see it fastest, but the effect reaches all of Hempstead township. That’s why annual inspection matters more here than in, say, central Nassau.
A Level 1 inspection is a visual check of accessible portions, and it’s right for an annual sweep-and-look. A Level 2 inspection includes everything in a Level 1 plus a camera pass through the entire flue, inspection of the chase, crawlspace, and attic access, and a written report with photos. Hempstead homeowners converting fuels, selling, buying, or seeing signs of leaks should get a Level 2. Call (336) 863-3889 and tell us what’s changed in your house; we’ll tell you which level applies.
Every burning season, at minimum, and sometimes twice. Wood stoves run as primary heat in colder months produce far more creosote than a fireplace used on weekends, because the burn cycle is longer and the flue runs hotter for more hours. In some outlying Hempstead properties, we’ve seen third-degree glazed creosote build up in a single winter. That’s a chimney fire waiting for a spark. Get it swept and inspected before the first burn, and call (336) 863-3889 to schedule it now.
That’s water intrusion through a failing crown and degraded top mortar joints. The salt-laden air eats the cement and mortar from the top down, and when the chimney is damp, you get the smell of wet creosote and soot drifting into the house. It’s repairable. We rebuild the crown, tuckpoint the top courses, and set a Copperfield cap if the flue needs protection. Call (336) 863-3889 and we’ll give you a written quote before any work starts.
Written by Ruben Castellano, Owner at Alcott Chimney Sweep, serving Hempstead since 2002.





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