Commercial School HVAC Systems in Fullerton

Our Fullerton School HVAC Expertise

At #1 AC Guys, we focus on healthy, reliable HVAC for education environments in Fullerton and throughout Orange County. As a 4th‑generation family of engineers with 80+ years of engineering experience, we bring an engineering‑first mindset to every campus—prioritizing indoor air quality, acoustics, energy efficiency, and long‑term serviceability. Our field teams are factory‑trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and HIER (China), enabling us to deliver sophisticated VRF and heat‑pump solutions, dedicated outdoor air systems, and high‑performing packaged equipment for classrooms, labs, libraries, gyms, cafeterias, and auditoriums.

We specialize in complex, multi‑building projects where precise coordination, staging, and commissioning are critical. Whether upgrading a single RTU over a long weekend or phasing a district‑wide modernization, we plan around student safety and the academic calendar to control noise, dust, and downtime.

IAQ‑First Design for Learning Outcomes

Healthy air is our mission. Our designs align with ASHRAE 62.1 ventilation standards and California Title 24 energy requirements while targeting low sound levels to keep classrooms focused. We prioritize ventilation effectiveness, filtration, and controllability so facilities teams can verify performance.

• Ventilation strategies using dedicated outdoor air systems (DOAS) and demand‑controlled ventilation with CO2 monitoring.
• High‑efficiency filtration (MERV‑13 or higher where applicable) and thoughtful filter access for faster maintenance.
• Humidity and temperature control for comfort and equipment longevity.
• Low‑noise fan selections and vibration mitigation to support quiet learning spaces.
• Energy recovery where appropriate to reduce operating costs without sacrificing fresh air.

Where appropriate, we can integrate UV‑C in coils or air streams, classroom CO2 trending, and indoor air quality dashboards to make performance visible and actionable.

Turnkey Delivery: From Design‑Build to Commissioning

• Campus assessment: equipment inventory, airflow/ventilation review, and room‑by‑room load calculations.
• Scope and phasing plan aligned with the school calendar and safety requirements.
• Equipment selection and submittals balancing first cost, acoustics, IAQ, and life‑cycle value.
• Controls integration with open protocols and existing BAS where feasible.
• Permitting, crane logistics, and site safety planning for occupied campuses.
• Installation by specialized crews, with clear barricades, signage, and end‑of‑day cleanup.
• Start‑up, test and balance, and functional performance testing for verifiable results.
• Training for facilities staff plus digital O&M documentation for future maintenance.

Equipment Options We Work With

Every campus is different. We select right‑sized, code‑compliant systems that meet your goals for IAQ, energy, and budget.

• VRF and heat‑pump systems for flexible zoning and high efficiency in classrooms and admin spaces.
• Packaged RTUs and heat‑pump RTUs for gyms, multipurpose rooms, and portable classrooms.
• DOAS units to deliver code ventilation with better control and filtration.
• Hydronic and chilled‑water retrofits where central plants make sense.
• Boiler replacement strategies and electrification roadmaps to reduce emissions over time.

Controls, Monitoring, and Reporting

We implement intuitive, open‑protocol controls, trending, and alarms so your team can see and manage IAQ and comfort in real time. Integrations can include CO2 sensors for demand control, bell‑schedule optimization, setback strategies, filter change reminders, and role‑based dashboards for facilities leadership.

Maintenance Aligned with the Academic Calendar

Reliable HVAC starts with proactive care. Our maintenance plans are built around school schedules to minimize disruption.

• Seasonal inspections, coil cleaning, belt and bearing checks, and refrigerant verification.
• Filter programs tailored to MERV ratings with documented changes.
• Controls tuning, sensor calibration, and trend reviews to catch issues early.
• Emergency response protocols and stocked critical spares for key sites.

Safety, Compliance, and Accountability

We maintain clean, well‑marked job sites with student and staff safety in mind. Our crews coordinate with your administrators and contractors for secure access, fencing where required, and daily housekeeping. Documentation packages cover submittals, commissioning reports, and O&M manuals for audit‑ready compliance.

Why #1 AC Guys for Fullerton Schools

• 4th‑generation family engineers with 80+ years of engineering experience.
• Factory‑trained by Fujitsu (Japan), Mitsubishi Elektrik (Thailand), Midea (China), Gree (China), and HIER (China).
• Strength in large, complex, multi‑building projects and tight academic schedules.
• IAQ‑driven designs aligned with ASHRAE 62.1 and Title 24 energy standards.
• Transparent scopes, clear phasing, and measurable outcomes (CO2, airflow, and comfort).
• Local to Southern California: Los Angeles County, Orange County (including Fullerton), Ventura County, and Western Riverside County.

Serving Fullerton and Beyond

Based in Southern California, we deliver school HVAC services across Fullerton and neighboring communities. We understand local permitting, climate demands, and campus logistics—so you get a practical plan, predictable scheduling, and reliable results.

Get a Proposal

Ready to improve classroom air, comfort, and efficiency? Contact #1 AC Guys for a site walk and scope. We will provide options, budgets, and timelines you can share with stakeholders—engineered for healthy air and long‑term value.