Sweep & inspection
Caps & crowns
Flue relining
Masonry repair
Gas fireplace serviceLevel 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 Maspeth
A chimney inspection in Maspeth typically runs $129 – $389 depending on the level, and most inspections take 45 to 90 minutes when the roof access is straightforward. If you live in one of the attached brick row houses that line Grand Avenue or 69th Street, the inspection usually takes longer because we have to evaluate the shared party-wall stack, not just your flue. That’s the part most generic inspection companies miss, and it’s the part that matters most in Maspeth. Call (315) 644-2982 and we’ll give you a written price before anyone climbs a ladder.
We’ve been doing Chimney Inspection work long enough to know that Maspeth’s housing stock doesn’t forgive shortcuts. Attached brick row houses built between 1900 and 1940 share chimney chases with the house next door. A flue liner on your side can look fine while the neighbor’s oil-fired boiler is pushing creosote and carbon monoxide into the same masonry chase. Our techs are trained to look at the whole stack, not just the side we were called to inspect.
Why Ashby Chimney New York Is Maspeth’s Preferred Chimney Inspection Company
Nathan Corliss runs Ashby Chimney New York, and he’s built the company around a simple idea: say the price, show up in the window, and put the guarantee in writing. That’s the Kingswell Way, and it’s why Maspeth homeowners who’ve been burned by no-shows and price-switching contractors keep calling us back. Every inspection gets a written price before work starts. Every repair gets a written guarantee. If a covered repair fails inside the guarantee period, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s not a slogan, it’s how we’ve operated since 2002.
When you book an inspection in Maspeth, you’ll speak to a live person. Not a voicemail loop, not a callback form. A human answers the phone 24 hours a day, 7 days a week. The technician who arrives at your door is background-checked and uniformed, so you know exactly who’s walking into your home. We serve Maspeth directly from our scheduling office in New York City, and we know the blocks between 69th Street and Grand Avenue well enough to plan for the tight parking and shared roof access before we arrive.
Styles & brands we work with





Fireplace Inspection in Maspeth
A Fireplace Inspection in Maspeth is about more than whether the firebox looks clean. In these prewar row houses, the fireplace was often built for coal, then converted to oil heat, then left dormant for decades. The damper rusts open. The smoke chamber fills with debris. The throat passage narrows. A thorough inspection starts at the firebox floor and works up through the smoke chamber, flue, and crown, because in an attached home, a problem on any one of those surfaces can pull air from the wrong place entirely.
What We Check Inside the Firebox
We look at the damper assembly first. In Maspeth homes with converted coal fireboxes, we regularly find dampers rusted open or missing entirely, which lets heated air escape straight up the flue all winter. That’s a dollar-cost issue as much as a safety one. We also check the firebrick for spalling and the mortar joints for gaps that could let heat reach the framing behind the brick. In an attached row house, that framing is shared with your neighbor, which changes the stakes.
Smoke Chamber and Throat Inspection
The smoke chamber above the damper is the most overlooked part of any fireplace, and in older Maspeth homes it’s often caked with decades of soot and broken mortar. We inspect it with a camera, not just a flashlight, because the geometry here matters. A chamber with corbelled brick and eroded mortar can trap embers. When the fireplace was converted from coal, the throat was sometimes widened crudely, leaving sharp edges that collect creosote faster than a smooth surface ever would.
Chimney Inspection Services in Maspeth
Chimney Inspection Services in Maspeth have to account for the unusual reality of shared flues and party-wall stacks. When two row houses share one masonry chimney chase, the inspection is not just about your flue liner. It’s about the neighbor’s crown, the shared flashing at the parapet, and whether either unit’s appliances are venting combustion gases into the same cavity. We offer Level 1, Level 2, and Level 3 inspections in Maspeth, plus camera inspection and flue inspection as standalone services when the situation calls for a closer look.
Level 1 and Level 2 Inspections in Attached Homes
A Level 1 inspection is what we recommend for an annual check when nothing has changed with your system. But in Maspeth, many of these attached chimneys haven’t been relined since the house was built, and the last owner may have switched heating equipment. That’s when a Level 2 inspection makes sense. It includes everything in a Level 1 plus a camera scan of the flue interior and an evaluation of the attic, crawlspace, and exterior stack, including the neighbor’s side of a shared chase where accessible.
Level 3 Inspection for Hidden Flues
A Level 3 inspection is the deepest look we can do, and on a Maspeth row house with a flue buried inside a shared masonry wall, it sometimes means removing a section of the chimney to see what’s actually there. We don’t do that lightly, and we never recommend it without camera evidence that something is wrong. But when a flue has been firing oil exhaust into a deteriorating clay liner for decades, the only way to know if the mortar joints are still sound is to open the wall. We show you the camera footage before we recommend anything.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Maspeth
When a repair comes out of an inspection, we install materials from companies that engineer specifically for chimney systems. That means liners and components from HeatShield, DuraFlex, and Gelco, not whatever happened to be on the truck. These are the brands our techs trust because they’re designed for the kind of aggressive conditions we see in old Maspeth flues: oil exhaust, moisture intrusion, and decades of heat cycling. We keep common parts stocked for the Maspeth area, so if your inspection turns up a failing liner or a rusted damper, we can usually schedule the repair without waiting weeks for a backorder.
See the difference
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After
Before
After
Before
AfterCommon Chimney Inspection Problems We See in Maspeth Homes
- Shared party-wall flue geometry. Two or three homes venting into one masonry chase creates cross-contamination risk that a detached-house inspection never has to consider. We check the shared crown and flashing conditions because a leak on the neighbor’s side migrates into your flue lining.
- Converted coal-to-oil boiler flues. Many Maspeth chimneys were sized for coal, not oil. The flue is often too large for the oil exhaust volume, which means weak draft, condensation, and creosote that clings to the oversized clay tiles instead of venting out.
- Freeze-thaw spalling at the parapet. Maspeth’s humid continental climate means repeated freeze-thaw cycles from November through March. Water seeps into old brick at the roofline, freezes, and expands, and the crown starts shedding pieces. A Level 1 inspection that ignores the shared parapet misses the source of the water.
- Missing caps on shared stacks. A chimney cap missing on a party-wall stack lets rain, leaves, and squirrels into both units’ flues. We routinely find caps missing on the neighbor’s side while the client’s side looks fine from the ground. The cap is a system component, not a luxury.
Pricing for Chimney Inspection in Maspeth, NY
We Also Serve Cities Near Maspeth
Our Chimney Inspection in Maspeth crews regularly cross into Jackson Heights, College Point, and the surrounding New York metro area, including Manhattan. If you own a row house or prewar brick home in any of these neighborhoods, the same shared-stack issues apply. Call (315) 644-2982 and we’ll tell you honestly whether the trip makes sense for the inspection level you need.
Serving Maspeth, NY - Our Local Coverage Area
We’re based in the Maspeth 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 Maspeth
We hand-scrape and use chemical treatments on shared party-wall flues where rotary brushes could crack an unrelined neighbor’s side. Camera inspection lets us see the condition of both sides of the shared chase without physically disturbing the masonry. If we determine that the structure can’t safely take the cleaning, we document it and recommend a repair plan before touching anything.
Oil-fired boilers produce acidic exhaust that condenses on aging clay tile liners, and Maspeth’s freeze-thaw winters accelerate spalling at the crown. A blocked or cracked flue on an oil system pushes carbon monoxide into the house, and in an attached row house it can push it into the neighbor’s house too. The annual inspection is cheaper than a liner replacement, and it’s the only way to catch the shared-stack issues before they become a building-wide problem. Call (315) 644-2982 if you can’t remember the last time anyone looked.
Carbon monoxide migrating from your neighbor’s oil-fired boiler into your living space through the shared chimney chase. That’s why we inspect the entire stack, including the neighbor’s crown and cap condition where accessible, and why we recommend a Level 2 inspection with camera documentation on any attached Maspeth home that hasn’t been inspected since the heating system was converted.

Yes, and this is one of the most common findings in Maspeth homes built between 1900 and 1940. We measure the flue dimensions and compare them to the exhaust volume your oil boiler produces. An oversized flue runs too cool, which condenses acidic water on the liner and weakens the mortar. The fix is often a properly sized stainless liner, and we’ll show you the camera footage before recommending it.
We’ll first do a Level 2 camera scan to document what’s visible. If the camera shows liner damage that can’t be evaluated from the top or bottom, a Level 3 inspection means opening a small section of the chimney to see the flue directly. In an attached home, we work carefully to avoid disturbing the neighbor’s side, and we put the plan in writing before any demolition happens. Call (315) 644-2982 and we’ll walk you through what’s involved for your specific roofline.
On 69th Street near Grand Avenue, our tech found a clay-tile flue liner with third-degree creosote glaze in a shared party-wall chimney serving two converted coal-to-oil boilers. We couldn’t use rotary brushes for fear of cracking the unrelined neighbor’s side, so we hand-scraped what we safely could and documented a Level 2 inspection with a camera, recommending a HeatShield resurfacing before the next burn season. That’s the kind of chimney geometry a generic inspection page never addresses, and it’s exactly what we check on every Maspeth job.
If you own an attached row house in Maspeth, the time to inspect the chimney is before the burn season starts, not after the first cold snap when every chimney company is booked solid. We answer the phone 24/7, we give you a written price before we start, and we put the guarantee in writing on every repair we recommend. Call (315) 644-2982 and talk to a live person about a chimney inspection for your Maspeth home.
Written by Nathan Corliss, Owner at Ashby Chimney New York, serving Maspeth since 2002.