Commercial Whole-House Fan Installation in Calabasas

When Calabasas temperatures drop in the evening, a commercial whole-house fan (whole-building fan) can quickly evacuate built-up heat and draw in cooler outdoor air, reducing reliance on compressors while refreshing indoor spaces. For many light-commercial facilities, this strategy lowers peak demand, shortens AC runtimes, and supports healthier indoor environments when outdoor air quality is favorable.

Why businesses in Calabasas choose whole-house fans

• Peak load reduction: Night-flush cooling preconditions your building for the next day, easing HVAC strain and expenses.
• Healthier air: Rapid air exchanges help dilute indoor pollutants and odors while outdoor air quality is good.
• Fast comfort: High airflow clears heat accumulation from attics, corridors, and open-plan areas.
• Quiet performance: Proper sizing, EC motors, and acoustical design keep operations disturbance-free.
• Smart controls: Automations use temperature and AQI lockouts to run only when conditions are optimal.

Our engineered approach

#1 AC Guys is a fourth-generation family of engineers with 80+ years of engineering expertise. We specialize in commercial and complex projects, bringing manufacturer-level standards to every job. Our team is factory-trained at Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and Hier (China), and we apply that rigor to whole-building ventilation design and installation.

• Assessment and modeling: We evaluate building envelope, occupancy, internal gains, and available relief paths; perform airflow and noise calculations; and verify structural and electrical capacities.
• Code and documentation: Title 24 compliance, local permit packages for the City of Calabasas/LA County, and clear as-built drawings and O&M manuals.
• Equipment selection: High-efficiency EC/variable-speed fans, weatherproof roof curbs, motorized dampers, backdraft control, and low-sone intake strategies.
• Acoustic planning: Discharge silencers, isolation mounts, and duct liner to protect quiet zones and offices.
• Controls and safety: BAS integration, CO2/VOC sensing, temperature and AQI lockouts, fire/smoke damper coordination, and interlocks with existing HVAC.
• Seismic and weatherproofing: Title 24 acceptance testing readiness, proper flashing, seismic anchorage, and curb height for local wind/rain conditions.

Installation done right

Our licensed installers handle core drilling, roof penetrations, curbs, dampers, power and controls wiring, and start-up commissioning. We respect your schedule with after-hours or phased work to minimize downtime. Each project concludes with airflow verification, balancing as required, staff training, and a clean turnover.

Designed for your property type

• Offices and coworking spaces
• Retail and showrooms
• Restaurants and food halls
• Gyms and studios
• Schools and places of worship
• Light industrial and warehouses (selected zones)

We tailor solutions to your space: intake louver placement for optimal crossflow, attic/ceiling relief strategies, and quiet nighttime operation. Where outdoor air quality is temporarily poor, we enable filtered make-up air options and programmable lockouts to protect occupants.

What you can expect

• Clear proposals with modeled savings potential and scope.
• Transparent pricing, firm timelines, and dedicated project management.
• Permit-ready drawings and coordination with inspectors.
• Workmanship warranties and ongoing maintenance plans.

Maintenance and service

Keep systems performing with scheduled maintenance: cleaning, belt inspection (if belt-driven), motor health checks, balancing, damper testing, and controls optimization. Our service team provides rapid response across Calabasas and nearby communities.

Your goals, our mission

Our mission is healthier air for healthier living—and working. From first consult to final commissioning, we prioritize occupant comfort, energy savings, and reliable performance backed by our family’s legacy of engineering excellence.

Get started today

Request a no-obligation site assessment in Calabasas. We will review your building, identify airflow opportunities, estimate savings, and provide a detailed plan that fits your budget and schedule. Same-week appointments are often available.

Based in Los Angeles, #1 AC Guys serves Los Angeles County and nearby areas including Orange County, Ventura County, and Western Riverside County. If your property is in or around Calabasas, we are ready to help.