Commercial Office Building HVAC Services in Calabasas

As a Calabasas-focused commercial HVAC partner, #1 AC Guys brings 80+ years of engineering experience to offices of every size — from boutique suites to multi-tenant buildings and corporate campuses. Our mission is simple: healthier indoor air and dependable comfort that support productivity while lowering lifecycle costs.

Comprehensive Services for Office Buildings

We provide full-scope commercial HVAC services tailored to office operations, occupancy patterns, and Title 24 requirements. Whether you need a design-build system for a tenant improvement or a strategic replacement plan for aging rooftop units, our engineers deliver right-sized, code-compliant solutions built for California climates and energy standards.

• Design-build HVAC for new offices and tenant improvements (TI)
• VRF/ductless design, installation, and commissioning for zoned comfort
• High-efficiency rooftop packaged units (RTU) and air handlers
• VAV/VVT systems, economizers, and demand-control ventilation
• Building automation and controls integration
• Indoor air quality upgrades: MERV-13+ filtration, fresh air strategies, UV-C options
• Preventive maintenance, seasonal tune-ups, and IAQ programs
• Emergency diagnostics and rapid repairs with minimal downtime

Factory-Trained Expertise You Can Trust

Our team is factory-trained by Fujitsu in Japan; Mitsubishi Electric in Thailand; and by Midea, Gree, and Haier in China. That hands-on training, combined with four generations of engineering know-how, means we solve complex problems other providers avoid — from precise refrigerant management in VRF networks to advanced controls optimization that stabilizes comfort and reduces energy use.

Maintenance Plans That Prevent Downtime

Planned maintenance is the most cost-effective way to keep tenants satisfied and protect your assets. Our office-focused PM programs improve reliability, extend equipment life, and catch small issues before they become expensive failures.

• Coil cleaning, belt and bearing service, electrical testing, and torque checks
• Economizer calibration, damper inspection, and ventilation verification
• VAV box balancing and control sequence optimization
• Refrigerant diagnostics and leak prevention
• Filter strategy: MERV selection, changeout cycles, and IAQ monitoring
• Seasonal performance reporting with actionable recommendations

Built for Calabasas Buildings

Calabasas properties face unique challenges — heat waves, wildfire smoke events, and strict energy codes. We design with these realities in mind: clean-air solutions for smoke season, quiet operation for professional spaces, and Title 24-compliant controls that deliver measurable savings. We handle permits, load calculations, and commissioning, then document results so you can share clear updates with owners and tenants.

Our Clear, Engineer-Led Process

• 1) Site assessment: mechanical room, roof, and airflow survey
• 2) Engineering analysis: loads, zoning, and controls strategy
• 3) Proposal and ROI: options, timelines, and budget transparency
• 4) Installation/retrofit: safety-first execution and quality control
• 5) Commissioning and training: verified performance and staff onboarding

After turnover, we remain your long-term partner with proactive maintenance and data-backed recommendations.

Systems We Service

• VRF/ductless heat pump networks for multi-zone offices
• Rooftop packaged units (gas/electric and heat pump)
• Air handlers, split systems, DOAS, and make-up air
• VAV/VVT systems, terminal units, and economizers
• Server room and telecom cooling for critical spaces

We bring broad, cross-system expertise to new installations, retrofits, and ongoing service, helping you standardize comfort and simplify operations across your portfolio.

Serving Calabasas and Greater Los Angeles

Headquartered in Los Angeles, we proudly serve Calabasas and Los Angeles County, plus nearby regions including Orange County, Ventura County, and Western Riverside County. Need multi-site support? We coordinate schedules, parts, and reporting across locations so your teams stay focused on business.

Healthy Air Is Our Mission

Cleaner air supports healthier, more productive workplaces. From upgraded filtration and ventilation tuning to advanced IAQ options, we tailor solutions to your building’s needs and budget — then verify results with commissioning data and ongoing monitoring.

Ready to upgrade your office HVAC?

Choose the team built by engineers, for building owners. Contact #1 AC Guys for a site visit in Calabasas today. We’ll provide a clear plan, precise execution, and performance you can measure.