Home
Commercial Chimney
Commercial Installation

Commercial Chimney Installation for New York City and Long Island Buildings

New commercial chimney and venting systems for boilers, mechanical equipment, and multi family buildings, engineered, sized, and installed to code. One accountable team from proposal through installation and warranty, built for property managers, building owners, and contractors.

Schedule a Free Consultation

Or Call Now: 646-401-3121

Certified and Licensed
Lifetime Warranty
48 hr Proposal Turnaround
Emergency Service 24/7

OVERVIEW

New Commercial Chimney Systems, Installed to Code

We design and install new commercial chimney and venting systems across every major building type in the five boroughs and Long Island. That includes boiler chimneys, commercial flues, stainless systems, and exterior rooftop stacks, each one sized to the equipment it serves and installed to New York City code. Whether you are converting a heating plant, replacing an aging stack, or building out new mechanical space, we deliver a complete installation with engineered drawings and full code documentation.

As a commercial chimney contractor, we plan the work around occupied buildings, keeping downtime minimal for tenants and operations. One accountable team handles the site survey, the engineered proposal, the permitting, and the installation, and every system we install carries a lifetime warranty registered to your property.

20+ Years in Business
1,000+ Projects Completed
48 hr Proposal Turnaround
24/7 Emergency Service

Request a Project Quote

WHAT WE INSTALL

Commercial Chimney Systems We Install

Boiler and Appliance Chimneys

We install code compliant boiler chimneys and breeching for commercial and industrial heating plants, sized to the equipment and vented to carry exhaust gases safely out of the building. This is a core specialty for buildings running oil to gas conversions or replacing an aging boiler stack.

Load calculations and stack sizing matched to boiler output
Stainless steel stack and breeching, UL Listed and sized to the plant
Draft testing and final code documentation on completion

Commercial Flue Systems

We install commercial flue systems that connect appliances to the stack with the correct diameter, clearances, and joints, so the system drafts properly and passes inspection. Commercial flue installation is planned around the equipment and the existing conditions in the building.

Flue sized to the appliance specification and run
Sealed, code compliant connections at every joint
Post installation draft and function verification

Exterior and Rooftop Stacks

We install exterior chimney systems and rooftop stacks engineered for wind load, height, and secure attachment to the structure, with weather sealed penetrations and minimal disruption to occupied floors.

Structural attachment and support engineered for the building
Weather sealed penetrations and terminations
Height and draft engineered for reliable performance

Code Sized Venting for New Mechanical Equipment

When new boilers, water heaters, or other appliances go in, we install venting sized and configured to the new load, so the equipment drafts correctly and the installation clears inspection.

Venting sized to the new equipment and combined loads
Clearances and terminations set to code
Draft testing to confirm safe operation

Full Systems for New Construction and Gut Renovations

We install complete chimney and venting systems for new construction and gut renovation projects, coordinating with the general contractor and mechanical trades from rough in through final testing.

Coordination with GCs and mechanical contractors on schedule
Complete system layout for the run, height, and roof penetration
Lifetime warranty registered to the property on completion

OUR PROCESS

From Site Survey to Registered Warranty

Site Survey and Assessment

We inspect existing conditions, take measurements, and confirm the equipment and code requirements before quoting the installation.

Engineered Proposal

We deliver a fixed scope proposal with engineered drawings within 48 hours, including lead times and a permitting plan.

Permitting and Scheduling

We file the permits and code paperwork and schedule the install around your building operations.

Installation

Our crews install the new system on the agreed schedule, working in occupied buildings with minimal downtime for tenants and operations.

Testing, Documentation, and Warranty

We draft test the system, hand over full code documentation, and register the lifetime warranty to the property.

Schedule a Free Consultation

COMPLIANCE

A Clean Paper Trail on Every Installation

DRAWINGS

Engineered and Filed

Engineered drawings and permit filing support for each installation.

CODE

Tested on Completion

Code compliant workmanship with post installation draft and function testing.

RECORDS

Retained for the Building

Complete documentation package retained for your building records.

WHY US

The Low Risk Choice for Commercial Installation

One Team From Survey to Warranty

A single point of accountability owns the installation end to end.

Sized to the Equipment

Systems installed to New York City code, with draft testing on completion.

Occupied Building Experience

We install in live commercial and multi family buildings with minimal downtime.

48 Hour Proposal Turnaround

Fixed scope proposals with clear lead times.

Contractor Ready

We subcontract cleanly for general and mechanical contractors and coordinate to the project schedule.

Lifetime Warranty

Registered to your property on every system we install.

WHO WE SERVE

Built for Commercial Property Portfolios

We work with property managers, building owners, general contractors, mechanical contractors, and facility engineers, and we subcontract cleanly for GCs and mechanical contractors who need a reliable installation partner on a larger project.

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

Recent Commercial Installations

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.

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.

View All Projects

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 Installation Questions

Do you provide engineered drawings and permit support?

Yes. Engineered drawings, permit filing support, and complete code documentation are part of every commercial installation.

Can you install while the building stays occupied?

Yes. We schedule and stage the work to keep downtime minimal for tenants and business operations in live commercial and multi family buildings.

How fast is a proposal?

We return a fixed scope proposal within 48 hours of the site survey, including lead times.

Do you subcontract for general and mechanical contractors?

Yes. We work as a chimney installation subcontractor for GCs and mechanical contractors and coordinate to your project schedule.

How do you size a new boiler chimney or flue?

We base the sizing on the appliance output and combined loads, then confirm performance with draft testing before we close out the job.

Do you handle emergencies?

Yes. We offer 24/7 emergency service to prevent and resolve operational shutdowns.

Ready to Install It Right the First Time?

Talk to the team that engineers and installs your commercial chimney system. Get an engineered proposal within 48 hours, backed by a lifetime warranty and complete code documentation.

Schedule a Free Consultation

Or Call Now: 646-401-3121

MANUFACTURING

We Make the Systems We Install

Stainless Steel Pipes
Chimney Liners
Custom Caps
Chase Covers
Tees, Wyes, and Elbows
Adapters and Reducers
Flue Pipes
Custom Fabrication

See Our Manufacturing

One team, from the shop floor to your roof

Because we manufacture our own UL Listed stainless steel stacks, liners, and fittings, one team handles your installation end to end with no supplier delays. For a commercial installation on a live building schedule, that control keeps your project moving and lets us back the entire system with a single lifetime warranty.

What that means for your project

UL Listed stainless steel components made to the spec of your installation
Custom fabrication for nonstandard runs, penetrations, and terminations
No supplier lead time risk on the parts your installation depends on
Lifetime warranty registered to the building, backed by one team as maker and installer