Kitchen Ventilation & Make-Up Air in San Bernardino, CA
Kitchens in hospitals, schools, hotels, and restaurants around San Bernardino rely on exhaust and make-up air systems that were often modified after installation. Imbalances produce hot, smoky, or drafty spaces and strain the building HVAC. We measure and adjust air volumes, service make-up equipment, and check control interlocks. This work addresses fans and balance and is separate from hood or duct cleaning.
The county seat, with downtown government buildings, hospitals, rail-served logistics, and aging mixed-use property stock that works hard through hot, smoggy summers.
How kitchen ventilation & make-up air work plays out in San Bernardino
Consider the kitchens that feed this city: hospital food service running three meals a day for patients and staff, the central kitchens that school districts use to prepare thousands of meals, hotel banquet operations on Hospitality Lane, campus dining halls, and the independent restaurants on Mt. Vernon Avenue, Highland Avenue, and around the downtown core. Most of them have had their exhaust systems modified at some point, with a hood added, a fan upsized, or a make-up air unit that quit and was never replaced. The result is a kitchen that pulls hot outdoor air through every door and gap, a dining room or patient wing that cannot hold temperature, and cooks working in conditions that make turnover worse.
The diagnostic is airflow measurement, not guesswork. We measure exhaust at each hood, measure what the make-up air unit actually supplies, and compare the two against the building's pressure relationship. Hospitals add a layer: the kitchen's pressure relative to adjacent corridors is part of infection control, and an exhaust change made without reviewing make-up air can push the kitchen the wrong way. For school and institutional kitchens, the make-up air unit often has heating and cooling stages that have been bypassed, so the kitchen gets raw 105-degree air all summer.
Our scope is the fans, the make-up air equipment, the tempering, and the balance between them. Hood and duct cleaning is a separate trade, and we will tell you if grease accumulation is affecting airflow so you can schedule it. The restaurant industry page outlines the full kitchen mechanical picture.
San Bernardino's climate and what it does to this equipment
San Bernardino sits at the foot of the mountains in a pocket where hot, polluted air often collects. Summer highs are among the highest in the region, and smog and fine particulate coat coils and clog filters faster than in coastal areas. Santa Ana winds in fall and winter bring heat, dust, and elevated fire danger, and wildfire smoke from nearby mountains is a recurring factor, sometimes closing windows of acceptable outdoor air for economizer use. Cold winter nights give heating real work to do. Equipment here is hit by every factor at once: high ambient, dirty air, and wide seasonal range.
For the equipment background behind this page, read our kitchen ventilation and make-up air guide or the full Kitchen Ventilation & Make-Up Air service page.
- Downtown and government centerCounty and city offices, courts, and older commercial buildings with mixed equipment generations and strict reliability expectations.
- Hospitality Lane and Tri-City corporate areaHotels, offices, restaurants, and corporate buildings with large chilled and packaged systems and long cooling hours.
- Inland Center and Tippecanoe corridorMall-area retail, big-box tenants, and surrounding service businesses with dense rooftop equipment.
- Rail and airport logistics areaWarehouses, distribution buildings, and industrial space near the rail yards and San Bernardino International Airport.
- Make-up air unit service, repair, and replacement
- Exhaust fan belts, motors, and airflow verification
- Kitchen-to-dining pressure balance so doors and hoods behave
- Documented readings, not guesses, on airflow and temperature
What a kitchen ventilation & make-up air visit includes, and the problems we most often find
- Walk the kitchen during or near service to see what the building actually does
- Measure exhaust and make-up airflow, temperatures, and building pressure
- Inspect fans, belts, motors, dampers, burners, and controls
- Repair or adjust, then re-measure to confirm the balance
- Document results and flag items for the hood-cleaning and fire-protection vendors to handle
- Make-up air that is undersized or off, pulling conditioned air from the dining room
- Exhaust fan belts and bearings worn, cutting airflow below what the hood needs
- Kitchens running negative, causing hard-to-open doors, drafts, and burner issues
- Make-up air units with failed burners or controls during cold or hot weather
Kitchen Ventilation & Make-Up Air in San Bernardino: questions we get
Our restaurant near Inland Center is unbearably hot in the kitchen in summer even with the hood running. What is the fix?
Start with the make-up air. If exhaust is pulling more air than the building is replacing, the kitchen draws hot air in through doors and the dining HVAC cannot keep up. Many make-up air units in older restaurants either are not running, have tempering stages that were disabled, or were never sized for a hood that was later upsized. We measure exhaust and supply, repair or rebalance the make-up unit, and confirm the dining room stabilizes.
Can you work on kitchen ventilation in an occupied hospital in San Bernardino?
Yes, with planning. Hospital kitchen work has to respect pressure relationships with adjacent spaces, infection control practices, and meal service windows. We schedule measurements and adjustments around service, coordinate with the facilities and infection control staff, and document before and after airflow readings. Where a make-up air unit replacement is needed, we plan temporary provisions so the kitchen can keep operating during the changeover.
Do you clean hoods and ducts?
No. Hood and duct cleaning is a separate specialty. We handle the mechanical side: exhaust fans, make-up air, and HVAC balance.
Why is my dining room hot when the kitchen is running?
Often the make-up air is not matched to the exhaust, so the kitchen pulls conditioned air from the dining room. Measuring airflow and pressure shows where the balance is off.
Can you replace a make-up air unit?
Yes. We size to the hood's exhaust requirement, coordinate permits, and handle rigging and controls.
Other services in San Bernardino
Kitchen Ventilation & Make-Up Air nearby in Inland Empire (Riverside & San Bernardino Counties)
Commercial HVAC and refrigeration across Inland Empire (Riverside & San Bernardino Counties)