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DDAN Hood Services
(615) 881-6968

What We Install

From a single kitchen exhaust fan installation to a complete restaurant exhaust system installation — every new hood system install is sized to your kitchen's airflow demands, wired to code, and documented for your records. Our commercial kitchen ventilation design process ensures the right CFM, duct routing, and make-up air balance for your operation.

Restaurant Fan Installation

Upblast Exhaust Fans

Direct drive and belt drive rooftop exhaust fans — properly sized for your hood's CFM requirements. Includes roof curb, wiring, and weatherproofing.

Utility & Inline Fans

Supplemental ventilation fans for dishwasher areas, restrooms, and general kitchen exhaust. Ceiling, wall, and duct-mounted configurations.

Exhaust Fan Replacement

End-of-life fan swaps with correctly sized replacements. We match CFM, static pressure, and electrical specs to your existing system.

Complete Hood System Installations

Hood & Ductwork Systems

Full restaurant exhaust system installation with properly graded ductwork from hood to rooftop fan. Grease-tight joints, fire-rated access panels, and NFPA 96 compliant ventilation install routing.

Fire Suppression Systems

Wet chemical fire suppression installation for new hoods and retrofits. Nozzle placement, agent charge, fusible links, and gas shutoff integration.

Grease Containment Systems

Rooftop grease boxes, containment trays, absorbent systems, and 360-degree grease gutters. Sized to your kitchen's output and local environmental requirements.

Make-Up Air Units

Gas-Fired Heated MUA

Tempered make-up air units that replace the air your exhaust system removes — preventing negative pressure, back-drafting, and cold spots in winter.

Untempered / Passive MUA

Cost-effective fresh air intake for kitchens in climate zones where heating isn't required year-round. Damper-controlled for seasonal adjustment.

MUA Retrofits

Adding make-up air to existing kitchens that were built without it. We assess your airflow balance and install the right unit to restore equilibrium.

Supporting Duct and Fan Installation

Hinge Kit Installation

NFPA 96 compliant hinge kits for rooftop exhaust fans. Enables safe fan tipping for restaurant compliance cleaning and inspection access without removing the unit.

Access Panel Installation

Fire-rated grease duct access doors installed at code-required intervals. Allows proper duct cleaning and inspection along the entire run.

Roof Curb & Weatherproofing

Properly flashed and sealed roof curbs for exhaust fans. Prevents leaks and structural damage while maintaining a code-compliant installation.

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Licensed, bonded, and insured since 2006. Every installation is NFPA 96 compliant, fully documented, and backed by our workmanship guarantee.

Type I vs. Type II Hood Systems

The first decision in any commercial kitchen exhaust installation is hood type. Getting this wrong means failed inspections, fire code violations, and a costly replacement. Here's what each type covers and which cooking operations require it.

Type I Hood

Required for: Grease-producing cooking

Fryers, griddles, charbroilers, woks, open-flame ranges — anything that produces grease-laden vapors requires a Type I hood with grease filters, a grease collection system, and a fire suppression system. NFPA 96 Section 6 governs all Type I installations. This is the most common installation for restaurants.

Fire suppression system required

Type II Hood

Required for: Heat and steam without grease

Dishwashers, steamers, ovens, and heat lamps produce heat and moisture but not grease-laden vapors. Type II hoods handle heat and condensation control without the fire suppression requirement. Lighter construction, simpler installation — but using a Type II where Type I is required is a serious code violation.

No fire suppression required

New Restaurant Build vs. Retrofit Installation

The installation process differs significantly depending on whether you're building out a new kitchen or upgrading an existing one. Both require NFPA 96 compliance — but the design constraints, timeline, and permit pathway are different.

New Restaurant Build

  • System designed from scratch for your menu and equipment
  • Ductwork routed through walls during rough-in phase
  • Hood placement coordinated with kitchen layout
  • Permit pulled before framing closes in the duct path
  • Make-up air unit sized and installed with the ventilation system

Retrofit / Concept Change

  • Existing ductwork evaluated for CFM capacity and code compliance
  • Non-standard curbs and mounting configurations accommodated
  • System upgraded for new cooking equipment without full gut
  • NFPA 96 access panels added where missing
  • Permit pathway through Metro Health for change-of-use kitchens

How We Design and Install Your Exhaust System

From initial assessment to final testing — structured, transparent, and fully documented.

01

On-Site Assessment

We evaluate your kitchen layout, existing infrastructure, airflow requirements, and local code specifics. You get a detailed written estimate — no obligation.

02

Equipment Sourcing

We source properly sized equipment from trusted commercial brands. Fan CFM, static pressure, electrical requirements, and roof compatibility are all matched to your kitchen.

03

Professional Installation

Our licensed technicians install everything to NFPA 96 code — ductwork, wiring, fire suppression integration, and weatherproofing. We work around your schedule.

04

Testing & Documentation

Every system is tested under load before we leave. You receive a complete documentation package — permits, test results, equipment specs, and warranty information.

Brands We Install

We install all major commercial kitchen exhaust fan and hood system brands. Our technicians have hands-on experience with every restaurant hood installation service and fan replacement on the market.

CaptiveAire

Greenheck

Loren Cook

Canarm

NAKS

EconAir

Accurex

PennBarry

Dayton

Fantech

Have a preferred brand? Call us — we'll source and install it.

Installation FAQ

What types of commercial kitchen exhaust systems do you install?

We handle every type of restaurant exhaust system installation — complete exhaust hood systems, upblast and utility exhaust fans, make-up air units, ductwork runs, grease containment systems, fire suppression systems, hinge kits, and access panels. Whether you need a new hood system install for a restaurant opening or a kitchen exhaust fan installation to replace aging equipment, we handle the full scope — sized, installed, and tested to NFPA 96.

How long does a typical exhaust fan installation take?

A single exhaust fan replacement — including roof curb, wiring, and hinge kit — typically takes 4–6 hours. Complete hood system installations for new kitchens can take 2–5 days depending on ductwork complexity and make-up air requirements. We schedule around your operations to minimize downtime.

Do you handle permits and code compliance for installations?

Yes. Every installation meets NFPA 96 standards. We coordinate with local fire marshals, pull required permits, and provide full documentation for your records. Our team has been doing this across Middle Tennessee since 2006 — we know the local requirements in every jurisdiction we serve.

Can you install a new exhaust system in an existing building?

Absolutely. Retrofit restaurant hood installation service is a large part of our work — converting retail or office spaces into commercial kitchens, upgrading undersized systems, or replacing equipment that has reached end of life. Our commercial kitchen ventilation design team assesses the existing structure, designs the system to fit, and installs to code.

What brands of equipment do you install?

We install all major commercial kitchen exhaust brands including CaptiveAire, Greenheck, Loren Cook, Canarm, NAKS, and Accurex. We also source and install make-up air units, fire suppression systems, and grease containment from leading manufacturers. If you have a preferred brand, we can work with it.

Do you provide free installation estimates?

Yes. Call (615) 881-6968 to schedule a free on-site assessment. We'll evaluate your kitchen layout, airflow needs, and local code requirements, then provide a detailed written estimate with no obligation.

Don't Wait Until You're Fined or Shut Down!

Whether you need a one-time deep clean, an urgent emergency repair, or a complete kitchen exhaust system installation, DDAN Hood Services is here to keep you up and running.

Call Now: (615) 881-6968
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