Grease Ductwork Installation in Long Island City | Denair HVAC

Commercial Grease Ductwork Installation · Long Island City

Code-compliant
grease ductwork
built for LIC
commercial kitchens

Denair fabricates and installs welded, code-compliant grease exhaust ductwork for Long Island City restaurants and commercial kitchens — engineered to pass DOB and FDNY inspection the first time.

Get Free Estimate 📞 Call (212) 365-5115

500+ NYC buildings served

4.9★ Google rating

19+ Years in business

Welded, NFPA 96-compliant duct

DOB & FDNY filing support

≤4-hour LIC service response

LL97 ventilation efficiency

HVAC sheet metal workers installing welded stainless steel grease ductwork above a commercial kitchen exhaust hood in Long Island City

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

What We Do

Our Grease Ductwork Installation Services in Long Island City

Fabrication and installation engineered to meet NYC fire and building code from day one — built for the commercial kitchens Long Island City runs on.

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Welded Grease Duct Fabrication

All grease exhaust ductwork is continuously welded to NFPA 96 standards — no riveted or sealant-only seams that can fail inspection or leak grease over time.

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Kitchen Layout & Duct Routing Design

We engineer duct routing around your Long Island City kitchen's actual hood placement, ceiling height, and structural constraints, minimizing bends that reduce exhaust performance.

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DOB & FDNY Filing Support

We coordinate the permit filings and inspections required for new grease duct installation, so your kitchen opens on schedule instead of stalling in the approval process.

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Fire-Rated Enclosure Installation

Where ductwork runs through occupied space, we install code-required fire-rated enclosures, protecting the building and keeping your installation inspection-ready.

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Exhaust Fan & Makeup Air Coordination

New grease ductwork is sized and balanced against your kitchen's exhaust fan and make-up air unit, ensuring proper negative pressure and code-compliant airflow.

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LL97 Ventilation Efficiency

Poorly sized kitchen ventilation wastes conditioned air and energy. We design duct systems that meet code while minimizing the operating load that contributes to your building's Local Law 97 exposure.

LL97 Note: Long Island City buildings over 25,000 sq ft face escalating carbon penalties starting 2024. Properly sized, code-compliant grease ductwork reduces the makeup air and exhaust load your building's HVAC system has to fight — a meaningful piece of your overall emissions profile.

From kitchen walkthrough to passed inspection

One partner handles design, fabrication, filing, and install. Here's how we do it.

Kitchen & code assessment

A certified technician surveys your Long Island City kitchen layout, hood placement, and existing exhaust infrastructure to scope a code-compliant duct design.

Duct design & permit filing

We engineer the routing and fabrication spec, then handle DOB and FDNY filing coordination so approvals move in parallel with fabrication rather than after it.

Fixed-price installation proposal

You receive a clear, itemized quote covering fabrication, installation, and filing fees before work begins — no change orders sprung on you mid-project.

Installation & commissioning

Technicians install and weld the ductwork to spec, then verify exhaust and makeup air balance before signing off for inspection.

The Denair Difference

Why Long Island City Facility Managers Choose Denair

Factory-Certified Expertise

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

Same-Day Long Island City Response

27 technicians in the field, on-site in Long Island City 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 Long Island City — no marketing fluff.

Does Denair handle DOB and FDNY filings for new grease ductwork?

Yes. Denair coordinates the permit filings and inspection scheduling required for new commercial grease duct installation in Long Island City, managing the paperwork alongside the fabrication and installation timeline so your project isn't stalled waiting on approvals.

What makes grease ductwork 'code-compliant' in NYC?

NYC and NFPA 96 require continuously welded seams (not riveted or sealant-only joints), specific clearances to combustibles, fire-rated enclosures where ducts pass through occupied space, and proper access panels for cleaning. Denair fabricates every installation to these standards from the start, rather than retrofitting compliance after a failed inspection.

How does new grease ductwork affect Local Law 97 compliance?

LL97 sets carbon emissions limits for Long Island City buildings over 25,000 sq ft, and undersized or poorly routed kitchen ventilation forces exhaust fans and makeup air units to work harder, increasing energy use. Properly engineered ductwork reduces that load, which is one of the practical ways commercial kitchen buildings can manage their emissions exposure.

What does grease ductwork installation cost in Long Island City?

Cost depends on duct length and routing complexity, number of floors or fire-rated enclosures required, and whether new permit filings are needed. Every project starts with a fixed, itemized proposal after a kitchen walkthrough — there are no hourly surprises once the scope is agreed.

How long does a typical grease ductwork installation take?

Timeline depends on routing complexity and permit approval speed, but straightforward single-kitchen installations in Long Island City often complete fabrication and installation within one to three weeks once filings are submitted. We build the fabrication schedule to run in parallel with DOB/FDNY review wherever possible to minimize delay.

Where We Work

Serving Long Island City and the Greater NYC Metro

From Long Island City's restaurant corridors to suburban commercial kitchens across Nassau and Westchester, Denair HVAC's certified technicians fabricate and install code-compliant grease ductwork across 11 regions with the same standard of workmanship. We've been building for NYC and metro-area kitchens for 19 years.

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

24/7 Response

≤4 hrs On-Site in Long Island City

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 Long Island City 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 Long Island City Grease Ductwork Quote — No Obligation

Tell us about your kitchen layout and timeline. A Denair specialist will respond within one business day with a clear scope and fixed-price proposal. No pressure, no upsell — just straight answers from people who know commercial kitchen code and Long Island City buildings.

(212) 365-5115

Available 24/7 for emergencies · Service department

Code-compliantgrease ductworkbuilt for LICcommercial kitchens