Or Call Now: 646-401-3121 - Venting and Exhaust Fans
Oil-Fired Generator Chimney Installation
A dedicated stainless steel chimney for an oil-fired generator, routed up the exterior wall and terminated above the roofline.
Commercial Chase Cover Installation for NYC Buildings
Stop leaks and water intrusion at the top of your chimney. We install custom chase covers on large and multi flue chases, cut and sealed to your exact rooftop opening, so water stays out of the structure below.
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Certified and Licensed
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Lifetime Warranty
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48 hr Proposal Turnaround
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Emergency Service 24/7
OVERVIEW
A Permanent Top Seal for Your Chase, Built to Commercial Spec
The chase cover is the metal top that seals the framed chase around your chimney system and keeps water out of the structure below. On commercial and multi story buildings, a failed cover sends water into top floor units, ceilings, and interior walls, which drives repair costs far beyond the price of the cover itself. We replace failing covers with a chase cover measured to your building and sized to hold up under NYC wind and snow loads.
Every commercial chase cover installation runs through one accountable team from measurement to warranty registration. Property managers, building owners, general contractors, and mechanical contractors get engineered drawings, code documentation, and a precise field fit, with scheduling that works around occupied floors and building operations.
- 20+ Years in Business
- 1,000+ Projects Completed
- 48 hr Proposal Turnaround
- 24/7 Emergency Service
WHEN YOU NEED IT
Signs Your Commercial Chase Cover Needs Replacing
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Rust and corrosion on the existing cover
Galvanized covers oxidize within a few seasons on exposed rooftops. Visible rust streaks and pitting mean the metal is thinning and no longer sealing the chase.
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Water intrusion into top floor units
Staining on top floor ceilings and interior walls near the chase almost always traces back to a compromised cover. Left in place, the intrusion spreads into finishes, insulation, and framing.
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Pooling water from a flat or sagging cover
A cover set flat, or one that has deflected over time, holds standing water instead of shedding it. Trapped water accelerates corrosion and pushes moisture down into the chase.
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Undersized or poorly fitted cover on a large or multi flue chase
Wide commercial chases and multi flue chases need a cover cut and creased for the exact opening layout. An undersized or loose cover leaves gaps at the flues and skirt where water and debris enter.
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No cover at all on an exposed chase
An open or missing top leaves the entire chase and framing directly exposed to rain and snow. This calls for immediate installation before water reaches the interior.
OUR PROCESS
From Site Measurement to Warranty Registration
01
Site Assessment and Measurement
Our field team documents the chase, rooftop access, and flue layout, then measures length, width, opening locations, collar height, and skirt length to the nearest 1/8 inch.
02
Engineered Drawing and Proposal
We produce a shop drawing and a fixed scope proposal, typically within a 48 hour turnaround, with material gauge, finish, and lead time stated up front.
03
Scheduling and Access Planning
We coordinate scaffold setups and rooftop access and set a schedule that works around occupied floors and business hours to limit downtime.
04
Removal and Installation
We remove the failing cover, set the new chase cover on the measured opening, and seal the collars and skirt for a watertight fit on the first visit.
05
Documentation and Warranty Registration
We verify the fit, issue post service certification, and register the lifetime warranty in your building records.
COMPLIANCE
Documented Work Your Records and Inspectors Can Rely On
DRAWINGS
Engineered and Filed
Engineered shop drawings and permitting support for the chase cover scope.
CERTIFICATION
Issued on Completion
Post service certification of the completed installation for your compliance file.
WARRANTY
Registered to the Building
Lifetime warranty registration tied to your building and the installed cover.
WHY US
Built for Commercial Property Accountability
One Team From Quote to Warranty
The people who measure and install are the same people who stand behind the warranty.
Precise Field Fit
Measurement to the nearest 1/8 inch means a cover that seats correctly on the first visit, even on wide and multi flue chases.
Occupied Building Experience
We plan access and staging to keep tenants and operations running with minimal downtime.
Licensed, Insured, and Code Driven
Full documentation accompanies every commercial project.
48 Hour Proposal Turnaround
Fast, fixed scope pricing keeps your project moving.
Lifetime Warranty on Every Cover
A permanent seal backed against rust, corrosion, and defects.
WHO WE SERVE
Commercial Properties Across the Five Boroughs and Long Island
We work with property managers, building owners, general contractors, mechanical contractors, and facility engineers on new chase cover installations and failed cover replacements across a wide range of building types.
- Multi family buildings
- Commercial and office buildings
- Restaurants and kitchens
- Hotels and hospitality
- Industrial buildings
- Hospitals and institutions
- Houses of worship
- Retail and mixed use
Schedule a Free Consultation
Serving Brooklyn, Manhattan, the Bronx, Queens, Staten Island, and Long Island.
OUR WORK
Commercial Chase Cover Projects
- 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.
- Chimney Rebuild
Complete Chimney Rebuild, Before and After
A failing chimney with crumbling mortar, damaged brick and a broken crown, fully dismantled and rebuilt with a new concrete crown, cap and weather-sealed base.
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
Commercial Chase Cover Questions
Galvanized covers rust and pool water within a few seasons on exposed rooftops. A welded, pitched stainless steel cover sheds water and carries a lifetime warranty against rust and corrosion.
Yes. We install multi flue chase covers and large opening covers built to the exact layout, with openings, collars, and skirt cut to your measured drawing.
Most commercial proposals are returned within a 48 hour turnaround after the site assessment, with material, lead time, and fixed scope pricing stated.
Yes. We schedule around occupied floors and business hours and coordinate scaffold and rooftop access to keep downtime to a minimum.
Every installation closes with post service certification and lifetime warranty registration tied to your building, along with the shop drawing for your compliance file.
Yes. We regularly install as a subcontractor and align with your project schedule and documentation requirements.
Ready to Replace a Failing Chase Cover?
Get a measured site assessment and a fixed scope proposal for a commercial chase cover installation, delivered by one accountable team.
MANUFACTURING
We Make the Cover We Install
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Stainless Steel Pipes
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Chimney Liners
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Custom Caps
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Chase Covers
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Tees, Wyes, and Elbows
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Adapters and Reducers
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Flue Pipes
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Custom Fabrication
Built to your exact chase, not the nearest stock size
Because we manufacture our own UL Listed stainless steel chase covers in house, one team handles your project from measurement to installation with no supplier delays and no third party markup. That control lets us build each cover to your exact chase instead of the nearest stock size.
What that means for your project
- Heavy gauge stainless steel, 24 to 20 gauge, with fully welded seams for a permanent seal
- Cross broken, pitched tops and drip edges that shed water and prevent pooling and siding runoff
- Custom collar heights and skirt lengths, plus fitted storm collars, sized to the chase and flue layout
- Backed by a lifetime warranty against rust, corrosion, and manufacturer defects
