Commercial HVAC. Handled End to End.

Turnkey HVAC and refrigeration services for commercial and industrial facilities across Southern California and Texas.

Request a Service Consultation

Thank you! Your form has been successfully submitted.

What We Do

Commercial HVAC & Refrigeration Services

RTU Replacements & Large-Scale Installations

We handle complex rooftop unit replacements and HVAC installations from start to finish — managing permits, engineering coordination, crane logistics, and startup with our in-house team. No subcontractors, no handoffs, no surprises.

Preventative Maintenance Agreements

We keep HVAC and refrigeration systems running at peak performance through structured maintenance programs that reduce emergency calls, extend equipment life, and give facility managers predictable service they can count on.

Refrigeration System Services & Relocations

From commercial refrigeration repairs to full unit relocations, we coordinate every detail so your equipment stays operational and your business keeps running. We handle the logistics so your team doesn't have to.

Emergency HVAC Service & Rapid Response

When equipment fails, downtime is not an option. Our in-house team responds fast, communicates clearly, and resolves issues without the delays that come from subcontractor-dependent providers.

Success Story

Outback Steakhouse:
Reliability Restored, Fast

Outback Steakhouse was dealing with inconsistent HVAC performance and aging equipment that created real downtime risk. SubTech assessed the systems, managed all permitting and logistics, and executed a full turnkey solution with our in-house team. The result was improved reliability, reduced downtime, and a long-term service relationship built on follow-through.

HVAC failures don't wait.

Partner with a self-performing team that manages every detail and shows up when it matters most.

Landing Page by Abstrakt Marketing Group ©