America One Mechanical & Air has been a licensed mechanical contractor since 2008 — specializing in HVAC, ventilation systems, heat pumps, and Title 24 energy compliance across residential, commercial, and industrial projects throughout Southern California.
America One Mechanical & Air was founded in 2008 with a clear mission: to deliver professional mechanical contracting services that homeowners, business owners, and industrial facilities can rely on. Based in Southern California, we've spent over 15 years building our reputation one job at a time.
As a full-service mechanical contractor, we specialize in HVAC systems across all three sectors — residential, commercial, and industrial — HVAC, ventilation, heat pumps, and mechanical systems. One contractor. One specialty. Done right.
Gilbert Banda · Owner & Lead Technician
From a home AC repair to a full commercial build-out or industrial facility — America One delivers the same quality and reliability across every project type.
Expert HVAC and mechanical service for your home. We show up on time, diagnose accurately, and get it done right — from a simple tune-up to a full system replacement with Title 24 compliance.
AC and heater repair, new system installs, and annual maintenance.
Energy-efficient heat pump installations — heating and cooling in one system.
Whole-home ventilation, ERV/HRV systems, ductwork design and air balancing.
Energy-efficient systems, rebate-eligible equipment, and eco-friendly comfort.
California Title 24 compliant installs — we handle documentation and inspection.
Zoning systems, smart thermostats, and custom comfort design for your home.
Business downtime costs money. America One keeps your mechanical systems running — fast response, licensed and insured, with commercial HVAC, ventilation, and Title 24 compliance across the IE and LA basin.
Rooftop units, split systems, VRF, and large-tonnage commercial HVAC.
Commercial heat pump systems — efficient heating and cooling for any building size.
Exhaust systems, make-up air units, kitchen ventilation, and air balancing.
California Title 24 compliant mechanical systems for commercial construction.
Energy-efficient upgrades and rebate programs for commercial buildings.
Scheduled preventive maintenance contracts for commercial HVAC systems.
Large-scale HVAC and mechanical systems for heavy-duty environments. America One handles industrial ventilation, heat pumps, and facility mechanical contracts for warehouses, plants, and government sites across Southern California.
Make-up air units, evaporative coolers, industrial fans, and large-tonnage systems.
Industrial-grade heat pump systems — scalable, efficient, Title 24 compliant.
Exhaust systems, fume hoods, dust collection, and facility air management.
Energy code compliance for industrial and large commercial mechanical systems.
Energy-efficient industrial mechanical systems — reduce operating costs and emissions.
Ongoing mechanical maintenance contracts for industrial facilities and plants.
HVAC is at the heart of America One Mechanical & Air. Whether it's a homeowner's AC failing in a summer heatwave, a restaurant's rooftop unit down during service hours, or a warehouse needing full industrial ventilation — we respond fast, diagnose accurately, and fix it right.
Fast diagnostics, same-day service when possible.
Furnaces, heat pumps, and radiant heating systems.
Full system replacements with energy-efficient equipment.
Package unit service and replacement for commercial roofs.
Make-up air, warehouse cooling, and exhaust systems.
Annual tune-ups and scheduled service contracts.
A sampling of the work America One Mechanical & Air has completed across residential, commercial, and industrial sectors throughout Southern California.
Full system replacement — new 4-ton split system, air handler, ductwork, and smart thermostat. Inland Empire single-family home.
Emergency replacement of failed 10-ton rooftop package unit for a full-service restaurant in the San Gabriel Valley. Completed overnight to minimize service disruption.
Design and installation of industrial make-up air units and evaporative cooling for a 150,000 sq ft distribution center in the Inland Empire.
Full heat pump replacement — new energy-efficient system with Title 24 compliance and smart thermostat integration for a Long Beach homeowner.
Design and installation of a commercial kitchen ventilation and make-up air system for a restaurant in Pomona — Title 24 compliant and fully permitted.
Walk-in cooler and freezer system installation for a food distribution facility in Ontario — full refrigeration, insulated panels, and electrical.
America One Mechanical & Air serves two of Southern California's largest markets — the Inland Empire and the greater Los Angeles basin — with the ability to mobilize quickly across both regions for residential, commercial, and industrial projects.
Riverside & San Bernardino counties — warehouses, distribution, manufacturing along the I-10, I-15, and I-215 corridors.
Greater LA, Long Beach, and the SGV — residential, commercial, and light industrial from the 605 to the coast.
North Orange County, San Fernando Valley, South Bay, and the High Desert. Call to confirm availability for your location.
Emergency HVAC and mechanical calls accepted throughout all zones — available outside regular business hours.
No call centers, no runaround. Reach Gilbert Banda directly — the person who will come to your project, assess the scope, and make sure it gets done right. America One Mechanical & Air has been earning trust since 2008.
Every job starts with a clear estimate and a walkthrough of the full scope — no hidden charges, no surprises at the end.
Need a bid for a large-scale project, TI build-out, or facility maintenance contract? Call Gilbert directly — all commercial and industrial quotes handled personally.
System down in summer heat or a cold winter night? Call now — America One prioritizes HVAC emergencies and aims to respond same-day across all sectors.
Residential, commercial, or industrial — call us today for a free estimate.
(626) 926-7938America One Mechanical & Air · Est. 2008