America One Mechanical & Air has been a trusted mechanical contractor since 2008 — serving the Inland Empire, Los Angeles, and surrounding areas with expert HVAC, plumbing, electrical, and full mechanical contracting across all sectors.
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 — alongside plumbing, electrical, painting, and remodeling. One contractor. Every trade. 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.
Your home deserves a contractor who treats it like their own. We show up on time, walk you through the scope before starting, and clean up when we're done. Quality work at a fair price — every time.
AC and heater repair, new system installs, mini-splits, and annual maintenance.
Leaks, drain clearing, water heaters, fixture installs, and pipe repairs.
Panel upgrades, outlets, lighting, and code-compliant residential wiring.
Interior and exterior painting with professional prep and lasting finish.
Tile, bathroom and kitchen remodels, and custom renovation work.
Drywall, doors, windows, hauling, demolition, and general repairs.
Business downtime costs money. America One works around your schedule to keep operations running — fast turnaround, licensed and insured, handling multi-unit and tenant improvement projects throughout the IE and LA basin.
Rooftop units, split systems, VRF, and commercial refrigeration support.
Commercial pipe systems, grease traps, restroom fixtures, and backflow.
3-phase panel work, lighting retrofits, and tenant build-out wiring.
Commercial interior and exterior — storefronts, lobbies, and common areas.
Scheduled preventive maintenance contracts for HVAC, plumbing, and electrical.
Tenant improvement mechanical, electrical, and plumbing for new suites.
Heavy-duty environments require heavy-duty expertise. America One handles large-scale mechanical systems, industrial HVAC, and facility maintenance for warehouses, manufacturing plants, and distribution operations throughout the IE and LA basin.
Make-up air units, evaporative coolers, industrial fans, and large-tonnage systems.
Cold storage, walk-in coolers, freezer systems, and refrigerant management.
Industrial plumbing, compressed air lines, and process fluid systems.
3-phase power, motor controls, equipment hookups, and industrial lighting.
Exhaust systems, fume hoods, dust collection, and facility air management.
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 kitchen and master bath remodel including tile, plumbing, electrical, and painting for a Long Beach homeowner.
Complete mechanical, electrical, and plumbing for a 6,000 sq ft tenant improvement — new HVAC zones, 3-phase panel, and full plumbing rough-in.
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