Commercial Dehumidifiers in Fullerton, CA

Purpose‑Built Commercial Dehumidification

Humidity control is not the same as cooling. We right‑size commercial dehumidifiers using psychrometrics, grain depression, ventilation loads, and target setpoints so you achieve precise RH without overcooling occupied spaces. Our designs integrate with packaged rooftop units, split systems, VRF/VRV, DOAS, ERVs, and building management systems for automated, stable control in Fullerton’s varied coastal‑valley climate.

Systems We Install and Service

• High‑capacity refrigerant dehumidifiers for offices, retail, churches, and mixed‑use spaces.
• Desiccant wheel dehumidifiers for process‑critical, low‑dew‑point environments (manufacturing, labs, grow rooms, archives).
• Pool and natatorium dehumidification with corrosion‑resistant components and heat recovery reheat.
• Make‑up air and ventilation dehumidification tied to code‑required air changes and economizer logic.

Who We Serve

• Warehouses, logistics, and cold storage protecting inventory and packaging.
• Healthcare, clinics, and labs requiring tighter RH and filtration.
• Schools, offices, and coworking for comfort and productivity.
• Hospitality, fitness, and multi‑family amenities, including pool rooms.
• Manufacturing and specialty processes where moisture impacts quality.

Our Engineering‑First Process

Every job starts with a site assessment and data logging to understand latent and sensible loads, infiltration, and ventilation. We complete load calculations, recommend refrigerant vs. desiccant strategies, and design ductwork, reheat, and condensate management. Controls are configured for staging, reheat, and demand response, with options for BMS integration, remote monitoring, and alarming. You receive a transparent, code‑informed proposal built for performance and serviceability.

Maintenance and 24/7 Repair

Humidity control depends on clean airflow and calibrated sensors. Our service plans include coil and drain maintenance, filter changes, sensor and controller calibration, belt and bearing checks, leak inspections, data trending, and performance reporting. When the unexpected happens, our Fullerton‑area team delivers rapid, 24/7 emergency response to get your RH back within range and protect your people, equipment, and inventory.

Energy, Comfort, and IAQ

Proper dehumidification controls mold risk, odors, corrosion, and static, while enhancing comfort at higher thermostat setpoints—often lowering energy costs. We leverage heat recovery, hot‑gas reheat, variable‑speed fans, and precise setpoint scheduling to optimize performance. Improved IAQ supports occupant wellness and aligns with our mission: healthy air for a healthy life.

Codes, Standards, and Compliance

We design to meet applicable ASHRAE guidelines (such as 55 and 62.1 for comfort and ventilation) and California Title 24 requirements. Our proposals consider ventilation offsets, economizer logic, and controls sequences to help keep you compliant while minimizing energy penalties.

Proven, Multi‑Generation Expertise

#1 AC Guys is a fourth‑generation, family‑owned HVAC company with 80+ years of engineering experience. Our team has trained at manufacturer facilities including Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China). We excel at large and complex commercial projects that demand careful coordination, clean installation, and long‑term reliability.

Local to Fullerton, Serving All of Orange County

We are based in Southern California and proudly serve Fullerton and nearby communities—Anaheim, Brea, Placentia, Buena Park, and beyond—plus Los Angeles County, Ventura County, and Western Riverside County. Wherever you operate, you get the same responsive service and engineering detail.

Get Your Free Assessment

Protect your facility, products, and people with professionally engineered humidity control. Request a free on‑site assessment and a clear, line‑item proposal for commercial dehumidifiers in Fullerton. #1 AC Guys will help you select the right technology, integrate it with your HVAC, and keep it performing for the long run.