Kitchen Exhaust Duct Cleaning & Fire Safety in Dubai
Kitchen exhaust duct cleaning removes accumulated grease from the hood, filters, plenum, ductwork and exhaust fan so a cooking fire cannot ignite and travel through the duct into the building. Following NFPA 96 principles, QSERV cleans to bare metal where accessible, documents the work with before/after evidence, and sets a cleaning frequency matched to how hard the kitchen cooks.
DCD-approved · 12+ years in Dubai fire safety · Hassantuk-integrated · 18,000+ customers served
Grease in the duct is stored fire
Every time an appliance runs, a film of grease-laden vapour condenses inside the exhaust system. Left alone it hardens into a continuous fuel layer running from the hood to the roof fan — so a small flare-up at the cooking line can become a fire that travels the whole duct.
- Grease condenses inside the duct on every cooking shift.
- A hardened grease layer is a continuous fuel path.
- A hood flare-up can ignite the entire duct run.
- Concealed ducts hide the build-up until it is severe.
- Heavy cooking builds fuel faster than owners expect.
From the hood to the fan, not just the visible bits
Wiping the hood front does nothing for the duct behind it. Following NFPA 96 principles, QSERV cleans the full system — filters, hood, plenum, the length of the duct and the exhaust fan — using access panels so the parts that actually hold the fuel are reached.
- Filters, hood and plenum degreased.
- Full duct run cleaned to bare metal where accessible.
- Exhaust fan cleaned and checked for free rotation.
- Access panels used or added along concealed runs.
- Surrounding area protected and left clean.
Cleaned as often as the kitchen needs, and recorded
A light café and a heavy grill kitchen do not build grease at the same rate, so a single fixed interval either wastes money or leaves risk. QSERV sets a frequency matched to cooking volume and documents each clean with before/after evidence for your fire file.
- Cleaning frequency matched to cooking volume and type.
- Before/after photos and a dated cleaning record.
- Findings such as damaged ductwork reported.
- Coordinated with hood suppression service dates.
- DCD-approved contractor since 2013, ISO 9001 documented.
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Frequently Asked Questions
Answers for restaurant and F&B operators on grease exhaust duct cleaning and fire risk.
Why is duct cleaning a fire safety issue, not just hygiene?
Grease-laden vapour condenses inside the exhaust duct and hardens into a fuel layer running from the hood to the fan. A flare-up at the cooking line can ignite that layer and carry fire through the duct into the rest of the building, which is why cleaning is treated as fire risk control, not just cleanliness.
What does NFPA 96 say about duct cleaning?
NFPA 96 is the standard for commercial cooking exhaust ventilation. Its principle is that the exhaust system must be inspected and cleaned to remove combustible grease, at a frequency based on how heavily the kitchen cooks. QSERV cleans to those principles and matches frequency to cooking volume.
How often should my exhaust duct be cleaned?
It depends on cooking volume and type. A high-volume grill or wok kitchen builds grease far faster than a light café, so heavy kitchens are cleaned more often. QSERV assesses your kitchen and sets a frequency rather than applying one interval to everyone.
Do you clean the whole duct or just the hood?
The whole system — filters, hood, plenum, the full duct run and the exhaust fan. The fuel that matters most is inside the concealed duct, so cleaning only the visible hood leaves the real hazard in place. Access panels are used or added to reach the full run.
What proof do I get that cleaning was done?
A dated cleaning record with before/after photos showing the condition of the duct. This evidence supports your fire safety file and answers landlord or authority queries about whether the exhaust system is being maintained.
Should duct cleaning line up with my suppression service?
It helps. Coordinating duct cleaning with the hood suppression inspection keeps the whole kitchen fire picture on one schedule and avoids the situation where the suppression is serviced but the duct it protects is left full of grease.