Our Services & Capabilities

Full-spectrum commercial HVAC solutions — from design and installation to 24/7 service and energy sustainability — across all of Southern California.

Find the Right Solution

Commercial HVAC installation on rooftop Installation

HVAC Installation

Design-build and new construction projects for commercial properties of any scale — from single-tenant offices to multi-campus industrial parks. ACS manages every phase from engineering through commissioning.

Commercial building HVAC tenant improvement Installation

Tenant Improvements

Custom HVAC solutions for leasehold improvements, office remodels, and commercial buildouts. ACS coordinates with general contractors to deliver on-time, code-compliant systems.

HVAC technician performing commercial maintenance Maintenance

Preventative Maintenance

Customised maintenance programmes that protect your investment, maximise equipment lifespan, and prevent costly emergency failures. ACS serves 2,840+ properties under active maintenance contracts.

Emergency HVAC repair technician on rooftop 24/7 Emergency

Emergency Repair Service

24/7 emergency HVAC response across Southern California. Call 909-786-4700 and a qualified technician will be dispatched immediately to minimise downtime and restore comfort.

Smart building automation control panel Controls

Building Automation Systems

Intelligent BAS solutions that give you real-time control over every HVAC zone, reduce energy consumption by up to 30%, and provide detailed performance analytics for facility managers.

Mechanical piping installation in commercial building Piping

Mechanical Piping

Full mechanical piping services for commercial and industrial facilities: hydronic systems, chilled water, condenser water, steam, and process piping — all installed and serviced by licensed ACS teams.

Energy efficient commercial HVAC rooftop system Energy

Energy Sustainability & LEED

LEED-certified HVAC solutions and SCE Gold Partner expertise. ACS helps commercial properties qualify for utility rebates, meet LEED requirements, and reduce operating costs through energy-efficient upgrades.

Commercial HVAC rooftop unit replacement Replacement

Unit Replacements

Full lifecycle equipment replacement — from ageing rooftop units to split systems and chillers. ACS coordinates crane services, electrical upgrades, and commissioning for a seamless transition.

Commercial building HVAC mechanical retrofit Retrofit

Mechanical Retrofits

Upgrade existing systems without full replacement — ACS identifies retrofit opportunities that deliver meaningful efficiency gains, extended equipment life, and improved occupant comfort at minimal disruption.

Portable commercial HVAC unit for temporary cooling Portable

Portable HVAC Units

Temporary heating and cooling solutions for events, construction projects, equipment failures, or seasonal demand spikes. ACS provides rapid deployment of portable units anywhere across SoCal.

Our Project Process

From first call to final commissioning — a transparent, professional process every step of the way.

1

Consultation & Inquiry

Contact us via phone, form, or email. We'll discuss your project requirements and schedule an on-site assessment.

2

Engineering & Design

Our licensed engineers design a custom HVAC solution optimised for your building type, use, and energy goals.

3

Installation

Our fully-licensed installation crews execute the project to code, on schedule, and with minimal disruption to your operations.

4

Commissioning & Support

Full commissioning, documentation, and staff training. Ongoing maintenance and 24/7 emergency support from Day 1.

Not Sure Which Service You Need?

Our team will assess your facility and recommend the right solution. No pressure, no obligation — just expert guidance from Southern California's most trusted HVAC contractor.

Contact Our Team