Grease Ductwork Installation in Manhattan | Denair HVAC

Grease Ductwork Installation · Manhattan

Grease ductwork
installation built
for Manhattan
commercial kitchens

Code-compliant grease duct fabrication and installation engineered for Manhattan's restaurants and commercial kitchens. Proper design protects your fire rating — and your LL97 exposure.

Get Free Estimate 📞 Call (212) 365-5115

500+ NYC buildings served

4.9★ Google rating

19+ Years in business

NYC DOB & FDNY filings managed

Fire-rated fabrication & install

Factory-certified OEM install

LL97 compliance built in

Sheet metal installers fabricating and installing stainless steel grease ductwork through a Manhattan restaurant kitchen roof with the skyline behind

Trusted By
New York City's Top Businesses
& Property Owners

What We Do

Our Grease Ductwork Installation Services in Manhattan

Full-service fabrication, installation, and permitting for the grease exhaust systems Manhattan's commercial kitchens depend on to pass inspection.

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Custom Sheet Metal Fabrication

We fabricate grease ductwork to the exact fire-rated gauge, welded-seam standard, and clearance requirements Manhattan's building and fire code demand — no shortcuts on seams or access panels.

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Full-Building Installation

From kitchen hood connection through vertical risers to rooftop termination, our crews handle the full install, including structural coordination for rooftop penetrations.

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DOB & FDNY Permit Filing

Grease duct installation requires DOB and often FDNY sign-off in Manhattan. We manage filings and inspections so your kitchen opens on schedule.

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Airflow & Exhaust Balancing

We size and balance ductwork to match your hood's exhaust rating and make-up air system, avoiding the pressure imbalances that cause code violations and comfort complaints.

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Grease Duct Cleaning Access Design

Access panels are placed to meet NFPA 96 cleaning requirements, so your fire-code-mandated duct cleanings can actually be performed without cutting into the structure later.

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Inspection-Ready Documentation

Every installation closes out with as-built drawings and inspection documentation — the paperwork your health inspector or fire marshal will ask for.

LL97 Note: Manhattan buildings over 25,000 sq ft face escalating carbon penalties starting 2024. Properly sized grease ductwork keeps make-up air and exhaust systems from working harder than necessary — reducing the energy load tied to your kitchen ventilation.

From kitchen plans to passed inspection

One partner handles design, fabrication, permitting, and install.

On-site kitchen survey

A certified technician surveys your Manhattan kitchen layout, hood specifications, and rooftop access to plan the duct route and fabrication scope.

Fabrication & permit filing

We fabricate fire-rated ductwork to spec while filing DOB and FDNY paperwork in parallel, so permitting doesn't delay your installation schedule.

Fixed-price proposal

You receive one itemized quote covering fabrication, installation, structural work, and permitting — no change orders once work begins.

Installation & inspection sign-off

Certified crews complete the install and coordinate directly with inspectors, closing out the project with as-built documentation in hand.

The Denair Difference

Why Manhattan Facility Managers Choose Denair

Factory-Certified Expertise

Factory-trained on Carrier, Trane, AAON, Daikin, Mitsubishi Electric, and LG VRF systems.

Same-Day Manhattan Response

27 technicians in the field, on-site in Manhattan within 4 hours, day or night.

Fixed, Transparent Pricing

You approve the cost before we start — no hourly surprises, no hidden charges.

NYC Code & LL97 Expertise

We understand how repairs intersect with Local Law 97 and DOB requirements.

Trusted Across New York City

Success Stories

See how NYC property owners and facility managers count on Denair HVAC.

Our Team

Meet the Denair NYC Team

Denair HVAC is built by people who've spent their careers keeping NYC buildings comfortable — from the engineers who size every system to the technicians who show up when it matters most.

Dennis

Founder & CEO

Dennis founded Denair HVAC Company in 2007. He has over 17 years of experience in the HVAC industry and holds significant expertise in every aspect of the business. Leading the company's strategic vision, he has raised the enterprise from zero to $2 million in revenue within 5 years.

Tanya

Financial Manager

15+ years handling finance, budgeting, and forecasting. She handles all aspects of accounting, finance, budgeting, forecasting, and insurance for Denair — and we couldn't be luckier.

Natalja

Marketing Manager

Natalja serves as marketing manager at Denair HVAC Company. She oversees the building of relationships with prospective clients and developing the firm's brand, and is responsible for public relations and marketing strategy.

Farrukh

Lead Estimator

Farrukh has been with Denair HVAC Company since 2010. He is an experienced estimator responsible for bid proposal preparation and tracking opportunities with vendors, subcontractors, and customers.

Anastasiya

VP Business Development

Anastasiya serves as sales manager, leading Denair's new business acquisitions by identifying market opportunities and developing strategic partnerships. She is in charge of development and implementation of sales and growth strategies.

Thomas

Service Manager

Thomas leads Denair HVAC's service operations, ensuring fast response times, efficient scheduling, and consistent service quality. He coordinates technicians and customer communication to keep systems running reliably.

Questions we hear every day

Straight answers about grease ductwork installation in Manhattan — no marketing fluff.

What code requirements apply to grease ductwork in Manhattan commercial kitchens?

Grease duct installations in Manhattan must meet NFPA 96 fire-rated construction standards, along with NYC DOB and often FDNY sign-off requirements for clearance, access panels, and welded-seam fabrication. We manage the full fabrication and filing process so your kitchen's ventilation system meets code from day one rather than failing inspection later.

Can Denair install ductwork in an existing occupied building?

Yes — most of our Manhattan grease duct projects happen in existing occupied buildings, and we coordinate rooftop access, structural penetrations, and scheduling to minimize disruption to kitchen operations and neighboring tenants during install.

Does grease ductwork design affect Local Law 97 compliance?

Indirectly, yes. Undersized or poorly balanced ductwork forces exhaust fans and make-up air units to work harder than necessary, adding unnecessary energy load. For Manhattan buildings over 25,000 sq ft managing LL97 exposure, correctly sized and balanced kitchen ventilation is one of the more overlooked ways to reduce a building's overall energy footprint.

What does grease ductwork installation cost in Manhattan?

Cost depends on duct run length, fire-rating requirements, rooftop access complexity, and permitting scope, so we always quote after an on-site kitchen survey. You'll receive one fixed, itemized proposal covering fabrication, installation, and filings before work begins — no change orders mid-project.

How long does grease ductwork installation take for a new Manhattan restaurant?

Timelines vary with permitting — DOB and FDNY review can take several weeks depending on scope — while fabrication and physical installation for a typical single-kitchen project usually run one to two weeks once permits are in hand. We build the realistic timeline into your fixed-price proposal upfront.

Where We Work

Serving Manhattan and the Greater NYC Metro

From Midtown restaurant corridors to suburban commercial kitchens across Nassau and Westchester, Denair's certified fabrication crews cover 11 regions with the same code-first approach. We've installed kitchen ventilation systems across Manhattan for 19 years — and we understand the fire code, DOB, and access requirements that make every kitchen different.

Queens Manhattan Brooklyn The Bronx Staten Island Nassau Westchester County Hudson Union Essex Bergen Counties

24/7 Response

≤4 hrs On-Site in Manhattan

11 Regions Covered

19 yrs NYC Experience

Certified & Recognized

Awards and Recognition

Inc. 5000 Award

Recognized as one of America's fastest-growing companies.

OSHA

OSHA 40-Hour Certified

Full team compliance with federal workplace safety standards.

Licensed Mechanical Contractor

Registered HVAC contractor fully licensed for NYC commercial work.

Manufacturer Partners

Factory-certified to service the world's
leading ventilation and air-handling brands

Authorized and factory-trained on the ventilation equipment manufacturers Manhattan buildings rely on most. This means access to proprietary diagnostic software, genuine parts, extended warranty programs, and the engineering support your exhaust and air-handling systems deserve.

Let's Talk

Get Your Manhattan Grease Duct Installation Quote — No Obligation

Tell us about your kitchen and building. A Denair specialist will respond within one business day with a clear scope assessment and fixed-price proposal — no pressure, no upsell, just straight answers from people who know grease ductwork and Manhattan code.

(212) 365-5115

Available 24/7 for emergencies · Service department

Grease ductworkinstallation builtfor Manhattancommercial kitchens