Commercial Boiler Installation in Rialto, CA

#1 AC Guys brings 80+ years of engineering heritage to Commercial Boiler Installation in Rialto—combining rigorous design, code compliance, and field craftsmanship to deliver reliable hydronic heat for mission-critical facilities. We excel at large and complex projects where uptime, efficiency, and safety cannot be compromised.

Engineered for Your Load, Climate, and Code

Every building and process is different. We start with a deep technical assessment to align system capacity with actual demand and California energy requirements. Our design priorities include lifecycle cost, maintenance access, and future scalability, not just first cost.

• Precise heat load calculations and pipe sizing to stabilize temperatures and protect equipment.
• High-efficiency condensing strategies with proper return-water temps for maximum efficiency.
• Low-NOx compliant venting and controls to support South Coast AQMD requirements.
• N+1 redundancy and modular cascades for resilience during peak or service events.
• Smart controls, BMS integration, and trending for proactive maintenance.
• Water treatment, air and dirt separation, and expansion management to extend system life.

What We Install

• Condensing and non-condensing commercial boilers (modular or standalone).
• Primary-secondary and variable-flow hydronic loops with VFD pump arrays.
• Heat exchangers, buffer tanks, and hydraulic separators for stable operation.
• DHW tie-ins and plate exchangers for domestic hot water applications.
• Category IV venting, stainless/PP flue systems, and combustion air solutions.
• Gas piping, isolation valves, balancing valves, and sensor networks.
• Advanced boiler controls, lead/lag staging, and full BMS integration.

Industries We Serve in Rialto

We support the Inland Empire’s diverse commercial base with right-sized hydronic systems that stand up to heavy use and variable loads.

• Logistics and warehouses requiring robust heat and quick warm-up for large volumes.
• Manufacturing and light industrial with process heat and comfort needs.
• Education and municipal buildings with strict safety and budget oversight.
• Healthcare and labs needing stable temperatures and documentation.
• Hospitality, retail, offices, and mixed-use with occupant comfort at scale.
• Multifamily common areas and amenities seeking efficient, centralized heat.

Our Process, Start to Finish

• 1. Site walk & discovery: Document loads, envelope, existing equipment, and constraints.
• 2. Engineering & estimate: Create a stamped-ready scope with options and ROI insights.
• 3. Permitting & submittals: Manage documents, Title 24 compliance, and utility coordination.
• 4. Prefab & logistics: Stage equipment, prefabricate assemblies, and plan shutdown windows.
• 5. Installation: Safe, clean work with clear communication and daily progress updates.
• 6. Startup & commissioning: Combustion tuning, flow balancing, sequence verification, and trending.
• 7. Training & turnover: O&M manuals, checklists, as-builts, and operator training.
• 8. Lifecycle support: Performance checks, optimization, and planned maintenance.

Why #1 AC Guys

We are a 4th-generation family of engineers with 80+ years of engineering expertise. Our team is factory-trained by Fujitsu (Japan), Mitsubishi Electric (Thailand), Midea (China), Gree (China), and Haier (China), and we bring that disciplined, manufacturer-level rigor to every hydronic project we deliver. We thrive on challenging scopes, fast-track schedules, and occupied upgrades where safety and uptime matter most.

• Design-build delivery that reduces change orders and compresses schedules.
• Complex, large-scale project experience with clear documentation and QA/QC.
• Data-driven commissioning to verify performance and comfort before turnover.
• Healthier indoor environments through correct combustion air, ventilation, and controls.

Code, Safety, and Documentation

We align designs with California Building and Mechanical Codes, Title 24 energy standards, and local jurisdiction requirements. Our teams follow strict lockout/tagout, hot work, and confined-space protocols, and we maintain a clean, organized jobsite to protect people and property. You receive detailed submittals, test reports, and as-builts for future clarity.

Service Area

We proudly serve commercial clients in Rialto and nearby communities across Greater Los Angeles and Western Riverside County, arriving on time with the right plan, parts, and people to finish work efficiently.

Ready for a Clear, Engineered Plan?

Whether it’s a new installation, a boiler room modernization, or a like-for-like replacement, #1 AC Guys delivers predictable outcomes backed by four generations of engineering. Let’s design the right hydronic solution for your facility, reduce energy spend, and safeguard uptime.
Request a site assessment to get load calculations, scope options, and a reliable schedule tailored to your building.