Restaurant fire suppression across DC, Maryland, Virginia & Hampton Roads.

Per NFPA 96, every commercial kitchen hood fire suppression system must be inspected at least every six months (semiannually) by a factory-authorized service technician. Restaurant staff should also perform daily visual checks of the system, hood, and nozzles. Inspection records must be maintained on-site and presented during fire marshal visits.

UL 300 is a fire safety standard published by Underwriters Laboratories that defines testing and performance requirements for fire-extinguishing systems in commercial kitchens. Introduced in 1994, it requires wet-chemical agents (not dry chemical), nozzles positioned over each cooking appliance and within hood/ducts, and automatic shut-off of fuel and electric power on activation. Insurance carriers and most local AHJs require a UL 300–compliant system in any commercial kitchen.

NFPA 96 — Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations — is the National Fire Protection Association code that governs how commercial kitchen exhaust hoods, grease ducts, and fire suppression systems must be designed, installed, and maintained. NFPA 96 requires UL 300–listed suppression equipment, semiannual professional inspection, hood and duct cleaning at frequencies tied to cooking volume, and electrical interlocks that shut off cooking fuel when the system discharges.

Both are UL 300–listed wet-chemical hood suppression systems. The Ansul R-102 uses a low-pH liquid agent that reacts with hot grease to form a foam barrier that prevents reignition; it is the most widely installed system in U.S. restaurants. The Pyro-Chem Kitchen Knight II uses a potassium carbonate solution, features a cylinder control head with unbalanced piping that simplifies installation, and is often selected for smaller or simpler kitchen layouts. Both require semiannual NFPA 96 inspection by a qualified technician.

Costs vary by hood length, number of cooking appliances, and complexity, but typical DMV ranges are: new pre-engineered Ansul R-102 installation $3,500–$8,000 for a single-hood line, $8,000–$20,000+ for multi-hood or large-volume kitchens. Semiannual inspection typically runs $200–$450. Wet-chemical recharge after discharge runs $600–$1,200 plus parts. Hydrostatic testing of cylinders (every 12 years) adds $150–$300 per cylinder. Always get a written quote — pricing depends heavily on your hood configuration and AHJ.

Yes, in nearly all jurisdictions. Dry-chemical hood systems installed before 1994 do not meet UL 300, which is required by NFPA 96 and most insurance policies. If you remodel, change ownership, or get cited by the fire marshal, you must upgrade to a UL 300–listed wet-chemical system. Skyline performs full removal of legacy dry-chemical systems and installs UL 300–compliant replacements with new piping, nozzles, and detection links.

A qualified technician shuts down cooking equipment (kitchen must be cool), then visually inspects each nozzle, fusible link, gas valve, manual pull station, agent cylinder gauge, blow-off caps, and electrical interlocks. The technician replaces fusible links and blow-off caps, verifies the system tag and prior inspection records, tests the gas/electric shut-off, and provides a signed inspection certificate. Any deficiencies are documented and a repair quote is issued. The whole inspection typically takes 60–90 minutes per hood line.

They are two separate services performed under different sections of NFPA 96. Hood and duct cleaning removes grease buildup from hoods, ducts, and exhaust fans on a frequency set by your cooking volume — quarterly for solid-fuel, semiannually for high-volume cooking, annually for moderate-volume, every 12 months for low-volume. Suppression inspection (also NFPA 96, semiannual) tests the fire suppression system itself. A failing system inspection will not be fixed by cleaning, and a clean hood does not exempt you from the suppression inspection.

Class K extinguishers contain a wet potassium-acetate agent designed specifically for high-temperature cooking-oil and animal-fat fires (deep fryers, charbroilers, woks). NFPA 96 and OSHA require at least one Class K extinguisher within 30 ft (9.1 m) of all commercial cooking equipment in addition to your hood suppression system. Class ABC extinguishers alone do not satisfy this requirement and can actually make a grease fire worse.

The most common findings are: expired or missing suppression-system inspection tag, missing or undersized Class K extinguisher, blocked emergency exits, missing fusible links, dirty grease ducts beyond cleaning frequency, modified cooking line that no longer aligns with hood nozzle coverage, gas/electric shut-off that fails to activate during inspection, expired portable extinguisher tag, and missing or unreadable manual pull station. Skyline addresses all of these as part of a routine inspection visit and coordinates directly with your AHJ — DC Fire and EMS, county fire marshals across Maryland, the Virginia State Fire Marshal’s Office, the Richmond Fire Marshal, or the Virginia Beach Fire Department.

Yes, in most jurisdictions across the DMV, the Richmond metro, and Hampton Roads. Maryland, Virginia, and DC require UL 300 wet-chemical suppression for any mobile food unit with cooking equipment that produces grease-laden vapors (fryers, griddles, charbroilers). The system follows the same NFPA 96 inspection schedule as a brick-and-mortar restaurant. Compact pre-engineered systems from Ansul, Pyro-Chem, and Range Guard are designed specifically for food-truck hoods.

Yes. In addition to the DMV, Skyline serves the Greater Richmond area (Shockoe Bottom, Scott’s Addition, the Fan, Carytown, Short Pump, Midlothian) and the Hampton Roads metro (Virginia Beach, Norfolk, Chesapeake, Newport News, Hampton, Suffolk, Portsmouth). Statewide-Virginia coverage includes UL 300 hood-system installs, semiannual NFPA 96 inspections, Class K extinguishers, hood/duct cleaning, and 24/7 emergency response after a discharge. Pricing and routing depend on travel time — we’ll quote it transparently up front.

Yes. Skyline services Ansul R-102, Ansul Piranha, Pyro-Chem Kitchen Knight II, Range Guard, Amerex, and other major manufacturers. Switching vendors does not require system replacement — we perform an initial assessment, take over your inspection records, and set up your semiannual maintenance contract. Many DMV, Richmond, and Hampton Roads restaurants switch to us after experiencing slow response times or surprise pricing from previous providers.