Or Call Now: 646-401-3121 - Chimney Rebuild
Complete Chimney Stack Rebuild and Masonry Restoration
A severely deteriorated rooftop chimney stack was dismantled to a sound base and rebuilt in new red brick, with a new crown and a stainless steel cap.
Level III Investigative Chimney Inspection in NYC and Long Island
When a serious hazard is suspected in a part of the chimney that cannot be seen from the outside, a Level III inspection opens the concealed areas to confirm the cause. Our certified inspectors deliver honest findings and clear documentation you can act on.
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Certified and Licensed
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Lifetime Warranty
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Free Estimates
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Emergency Service 24/7
OVERVIEW
The Deepest Level of Chimney Investigation
A Level III investigative chimney inspection is the most thorough evaluation we perform. It is called for when a hazard is suspected in a part of the chimney or the surrounding structure that a standard visual or video inspection cannot reach.
To confirm the condition with certainty, we access concealed portions of the chimney or the adjoining building. Reaching those areas can require the careful removal or opening of specific components, so this level is reserved for serious cases rather than routine checks.
Every finding is recorded in a written report, so you know exactly what was examined, what was found, and what the home or building needs next.
SCOPE
What a Level III Inspection Examines
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Everything in a Level I and Level II
This inspection includes the readily accessible visual checks and the internal video scanning of the flue, then goes further into areas the lower levels cannot see.
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Flue interior and liner
Internal camera scanning documents cracks, blockages, creosote buildup, and deterioration along the length of the flue.
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Concealed masonry and structure
We examine sections of the chimney hidden behind walls, enclosures, or the surrounding building where a problem is suspected.
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Targeted access to hidden areas
Where the evidence points to a concealed area, we open or remove the specific components needed to reach it and confirm the cause.
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Appliance and venting connections
We check boiler and appliance connections and how the venting system draws and performs as a whole.
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Suspected hazard confirmation
We determine whether a suspected fire, water, or structural hazard is present, identify its source, and record its extent.
OUR PROCESS
How We Carry Out an Investigative Inspection
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Review and Scope
We discuss the concern, review any prior inspection reports or incident history, and define exactly what needs to be investigated.
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Full Visual and Video Assessment
We complete the Level I and Level II work first, including internal camera scanning of the flue, to gather all evidence available without opening any components.
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Targeted Access
Where the evidence points to a concealed area, we carefully open or remove the specific components needed to reach it, limiting access to what the investigation requires.
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Examine and Document
We inspect the concealed portions in person, capture photos and video, and record the condition along with any code or safety findings.
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Restore and Report
We return any opened components to their original condition and deliver a written report with our findings and the conclusion for the property.
COMPLIANCE
A Written Record You Can Rely On
INSPECTED
Full Examination
Every accessible and concealed area within the defined scope is checked against current NYC codes and safety standards.
TESTED
Performance Verified
The flue, connections, and venting are evaluated so the conclusion reflects how the system actually performs.
DOCUMENTED
Written Report
Findings are captured in writing with photos and video, giving you a record you can act on and share.
WHY US
Why Property Owners and Managers Choose Us
Certified Inspectors
Trained, credentialed professionals who know NYC requirements and standards.
Honest Findings
We report what we find plainly, with no pressure and no upselling.
Camera Backed Evidence
Internal scanning documents the flue so conclusions are shown, not just described.
Clear Reporting
Documentation that reads easily and holds up for insurance, sales, and repair planning.
Fast Scheduling
Prompt appointments and rapid response for urgent post incident cases.
Licensed and Insured
Fully licensed and fully insured for work on both homes and commercial properties.
WHO WE SERVE
A Definitive Answer for Any Property
A Level III investigative inspection applies wherever a chimney or venting system needs a definitive answer, from a single home to a large building portfolio. We work with homeowners as well as building and property managers who need the source of a serious problem located and documented with certainty, whether it follows a fire, storm damage, or a hidden hazard flagged by an earlier inspection.
- Single family homes
- Townhouses and condos
- Brownstones
- Historic homes
- Multi family buildings
- Commercial and office buildings
- Restaurants and kitchens
- Hotels and hospitality
Schedule an Inspection
Serving Brooklyn, Manhattan, the Bronx, Queens, Staten Island, and Long Island.
OUR WORK
Recent Investigative Inspections
- Fireplace and Firebox
Custom Fireplace Construction with Class A Chimney and Offset Flue
A new masonry fireplace built to the project plans, with a custom firebrick firebox, smoke chamber and an offset connection into a Class A insulated chimney.
- Fireplace and Firebox
Brownstone Fireplace Reconstruction and Restoration
A decommissioned fireplace in a historic brownstone brought back to life with a new firebrick firebox, rebuilt masonry and a reinstalled stainless steel liner.
REVIEWS
What Our Clients Say
Mike S.
Chimney Professionals did a terrific job cleaning my two wood burning fireplaces in a Manhattan brownstone. They came within one day. Their equipment is state of the art, and it was all done in less than 30 minutes. Everything kept spotless. The price was right too.
1 Mar 2026
M. J.
Not only did they answer right away, they had Rod at my door first thing Monday morning and sourced a hard to find part same day when others could not. They beat every other quote I got and had our system back up and running in under an hour.
27 Oct 2025
Bruce S.
The chimney in my 115 year old brick rowhouse had a badly deteriorated terra cotta lining. Michael gave me a fair price, was punctual, and while spending more time than he expected, stuck to the original price. Kudos to Michael for getting a tricky job done.
2 Nov 2025
Jim S.
Mike and his team are phenomenal. Very quick to respond and schedule and then more importantly, absolute professionals. Deep cleaned the chimney and made sure they cleaned any residual dust around the area.
13 Nov 2025
Ryan L.
Our building needed three new liners for each apartment. They did a great job with the removal and new installation. Mike was very easy to work with, and very responsive with any follow ups.
10 Aug 2025
Donna L.
Chimney Professionals were prompt, professional and neat. We would recommend them to anyone looking to get their fireplaces cleaned. A pleasure to work with.
3 Dec 2025
Alan H.
We asked them to inspect our roof and chimney before an upcoming home inspection. They explained every detail clearly, helped us understand what needed fixing, and even assisted with budgeting.
10 Dec 2025
Baktiar M.
Same day service, quick and efficient. Used drones to check the chimney and provided a report. Definitely recommend.
25 Feb 2025
Kara T.
They were able to come out next day and fix our gas fireplace issue. They listened to all of our concerns and addressed any questions we had while thoroughly explaining the work that needed to be done. The price was fair and upfront.
15 Nov 2024
Brandon G.
Mike set up an appointment for the next day to clean our dryer vent. He maintained good communication the whole time. The technician who arrived was professional and did a thorough job. The price was reasonable too.
23 Aug 2025
FAQ
Common Questions About Level III Inspections
It is the most thorough level of chimney inspection. It includes everything in a Level I and Level II inspection plus examination of concealed portions of the chimney or building, which can require opening or removing certain components to confirm a suspected hazard.
A Level III is warranted after a chimney or building fire, following weather or structural damage, when a Level I or Level II inspection reveals a hidden hazard, before major repairs, or when a problem is suspected but cannot be seen.
Only where it is necessary to reach a concealed area and confirm the cause. We limit access to the specific components involved and return them to their original condition once the examination is complete.
Yes. We use internal camera scanning of the flue with lighting and zoom to document creosote, cracks, blockages, and deterioration, which often reduces how much needs to be opened.
A written report describing what was checked and found, photos and video where relevant, code and safety findings, and, where applicable, a certificate of cleanliness and functionality.
Your report documents the finding and the conclusion, and our repair and draft correction services handle whatever correction it calls for.
Because the scope depends on what needs to be accessed, pricing is confirmed after we review the concern. We provide a free estimate before any work begins.
Get a Definitive Answer for Your Chimney
If a serious problem is suspected, our certified inspectors will locate the cause and document it clearly. Schedule your Level III investigative inspection today.