Commercial Kitchen Hood & Exhaust System Cleaning in Bozeman, Montana
Kitchen exhaust hoods and ductwork are the single highest fire risk area in any commercial kitchen. Grease-laden vapor rises from cooking surfaces and deposits on every interior surface of the hood, the filters, the plenum, and the ductwork behind it — building up layer by layer until the accumulation becomes a genuine fire hazard. The National Fire Protection Association sets standards for hood cleaning frequency precisely because of how dangerous neglected exhaust systems are, and health departments and insurance carriers pay attention to whether those standards are being met.
Northern Blasting cleans commercial kitchen exhaust hoods and associated components using dry ice blasting — removing grease deposits thoroughly from surfaces that conventional hood cleaning methods struggle to address completely, without chemicals that leave residue on food-adjacent surfaces and without the water that creates its own problems inside exhaust systems and above ceiling lines.
The problem with conventional hood cleaning
The standard approach to commercial hood cleaning involves chemical degreasers applied by hand or with pressure equipment, manual scrubbing, and hot water rinse. For hood filters and the immediately visible interior surfaces, this works reasonably well when done consistently. The problem is the areas conventional methods don't reach effectively — the upper plenum interior, the transition to ductwork, the exterior hood surfaces above the filter line, and the duct interior itself.
Grease accumulation in these areas is real and significant. It's also the accumulation that represents the greatest fire risk, because it's in areas of the exhaust pathway where heat concentrates and where a grease fire travels fast. Chemical cleaning of these areas is labor intensive, incompletely effective, and leaves residue that attracts new grease buildup faster than a clean surface would.
Dry ice blasting removes grease from hood interiors, plenums, and accessible duct sections more completely than manual chemical methods — reaching into corners, seams, and structural features that manual cleaning physically cannot address.pent chemical solution, and no media to contain and remove.
What we clean
A Northern Blasting hood and exhaust service covers:
Hood canopy interior surfaces — all grease-contacted areas
Plenum chamber interior
Grease cup and drain trough areas
Exterior hood surfaces and mounting brackets
Baffle filter frames and filter tracks
Ansul nozzle mounting points and associated hardware
Accessible ductwork sections — the transition from hood to duct and any accessible horizontal runs
Make-up air unit exterior surfaces
Wall and ceiling surfaces immediately adjacent to the hood where grease migration has occurred
We work within the scope of what's accessible and appropriate for dry ice blasting. Duct interior cleaning beyond accessible sections is noted and documented if it's needed, so you have accurate information for your records and your hood cleaning contractor.
Fire risk, NFPA standards, and inspection compliance
The NFPA 96 standard for commercial cooking operations specifies cleaning frequencies for exhaust systems based on cooking volume and type — monthly for high-volume operations using solid fuel, quarterly for most full-service restaurants, and semi-annually or annually for lower-volume operations. These aren't suggestions. Insurance policies covering commercial kitchen fires frequently include provisions requiring compliance with NFPA 96, and failure to maintain cleaning records can affect claims.
Health departments in Montana inspect commercial kitchens against cleanliness standards that include exhaust systems. A hood and exhaust system that shows visible grease accumulation above the filter line is a finding that creates follow-up requirements.
Northern Blasting provides documentation of services performed that can be maintained as part of your cleaning records. If you need to demonstrate a consistent cleaning program to an inspector or insurance carrier, that documentation exists and is accurate.
Pairing hood cleaning with full kitchen equipment cleaning
Hood and exhaust cleaning pairs naturally with a full commercial kitchen equipment clean. When Northern Blasting is already on-site cleaning ranges, fryers, and cooking equipment, adding the hood service in the same window is efficient for both parties — one mobilization, one scheduling disruption, one invoice. The kitchen comes out of the service genuinely clean throughout rather than having the cooking surfaces addressed while the exhaust system above them still carries a season of grease accumulation.
If you've read our restaurant kitchen equipment cleaning page, the operational approach is the same — overnight service window, no disruption to your service schedule, and a kitchen that's cleaner coming out than it was going in.
Who this service is for
Any commercial food service operation in Southwest Montana with a hood system is a candidate. That includes full-service restaurants, fast casual operations, hotel and resort kitchens, cafeteria and institutional food service, food truck commissaries, brewery and taproom kitchens, and any commercial space where cooking over an open flame or high-heat surface happens under a ventilation system.
If your hood cleaning program has been inconsistent, if you've had comments from an inspector about exhaust system cleanliness, or if you simply want a more thorough clean than your current method provides, reach out and we'll assess what you have and tell you what it'll take.
Mobile service throughout Southwest Montana
Northern Blasting is fully mobile. We come to your kitchen anywhere in the Bozeman area and Southwest Montana. Service area includes Bozeman, Belgrade, Manhattan, Three Forks, Livingston, Big Sky, Ennis, and surrounding communities. Resort and hotel kitchen operations throughout the region are welcome to reach out regardless of location.
Pricing
Hood and exhaust cleaning is priced based on hood size, the number of hood sections, the level of grease accumulation, and whether the service is standalone or combined with a full kitchen equipment clean. Combined services are priced more efficiently than standalone hood cleaning. Reach out with your kitchen details and we'll give you a straight quote.
Schedule a service or get a quote
Use the form below to tell us about your operation — type of kitchen, hood configuration, last cleaning date if you know it, and your scheduling window. We'll respond quickly with an assessment and a number.