


COMMERCIAL ENERGY · AUTOMATION · FACILITY SERVICES
Commercial contractors in Fontana.
We plan and coordinate commercial building projects in Fontana, from scope and trade roles to permits, site access, and closeout records.
WHAT WE DO
From energy audits to robot repair.
Energy
Find the waste, fund the fix.
Energy audits
Audit cost & pricing
Efficiency consultants
ALL ENERGY →
Battery
Storage that pays for itself.
BESS installation
Battery backup
Containerized BESS
ALL BATTERY →
EV
Charging that shows up on time.
EV charging installation
Fleet charging
Workplace charging
ALL EV →
Robots
Automation that earns its floor space.
Cleaning robots
Autonomous floor scrubbers
Security robots
ALL ROBOTS →
Mechanical
The big installs, built right.
HVAC installation & replacement
Ductwork installation
Sheet metal & pipe fabrication
ALL MECHANICAL →
Maintenance
The trades that keep buildings alive.
HVAC service
Electricians
Roofing
ALL MAINTENANCE →
Not sure where it fits?
Reach out. We scope it and put the right team on it, whatever the trade.
FONTANA BY THE NUMBERS
What Fontana does to buildings.
8,859 FT
ELEVATION
Altitude changes how equipment gets sized.
SUMMER
IS THE STRESS TEST
Cooling season is when undersized equipment shows itself.
221K
PEOPLE STRONG
Fontana commercial buildings keep a growing market running.
START HERE
What should Fontana businesses expect from commercial contractors?
We start with a written scope that names each trade, system, document, and handoff. A clear responsibility matrix shows who owns civil work, utilities, equipment, controls, testing, and final records. Flux uses this to prevent gaps between vendors. For Fontana projects, we also map the permit and review path before field work starts. City project reviews may involve Fire, Building and Safety, and Engineering. Plan changes can affect drainage, grading, lighting, landscaping, and the date construction may begin.
Bid Scope Check
How to compare commercial contractors in Fontana
- Require a written scope that lists the building area, use, occupancy, construction type, affected systems, and excluded work.
- Request a responsibility matrix for civil work, utilities, equipment vendors, controls, testing, and project records. Missing ownership is a poor-fit condition.
- Match each project specification to the building program, code analysis, and engineering analysis. A general guide is not the final project specification.
- Confirm which party handles plan changes tied to grading, drainage, sidewalks, site lighting, and landscaping. Each change can alter trade scope and permit timing.
Project Controls
What records should Fontana commercial contractors provide?
Site access log
Security
Use time-stamped entry records when rotating subcontractors need controlled access. The log changes who can enter and gives the project team an auditable record.
Trade responsibility matrix
Scope
Name the party responsible for every civil, utility, equipment, controls, testing, and documentation interface. An unassigned interface must be resolved before award.
Project specifications
Design
Use project-specific documents based on program needs, code analysis, and engineering analysis. A template alone does not pass this check.
Permit milestone record
Schedule
Track permit approval, the start of primary building construction, and the first successful Building and Safety inspection when those milestones apply to the approval.

POWER & AUTOMATION
Battery storage, EV charging, and robots that work.
Commercial buildings are adding batteries, chargers, and floor robots faster than most contractors can keep up. We design and install battery energy storage systems, handle utility interconnection, and build EV charging from a pair of stalls to a full fleet depot.
On the automation side, we deploy cleaning and security robots that pay for themselves in labor, then keep every piece of it running. Planning any of this? Get in touch and get a real number for your building.
Get in touchHOW IT WORKS
From first call to finished work.

01
Get in touch
Tell us the building and the problem. Two minutes, no phone tag.

02
Get a scoped proposal
We assess the site, engineer the fix, and put a real price on it.

03
The work gets done
Vetted, insured local crews, with one point of contact from scope to done.
WHY FLUX
One call covers the whole building.
Every trade, one contact
Mechanical, electrical, energy, robots. You deal with one person from scope to done.
Licensed local crews
Insured crews from your market, vetted before they walk your site.
A real price, fast
Free site visit, scoped proposal, and a number you can take to your board.
Built for what's next
Battery storage, EV charging, and facility robots alongside the trades you already buy.

THE CORE TRADES
The trades that keep a building running.
HVAC, plumbing, electrical, roofing. The unglamorous work is most of the job, and slow contractors are where it costs you. Our mechanical crews handle installs and replacements, from rooftop units to boilers, chillers, and process piping.
Maintenance covers the rest: service calls, electricians, roofing, fire and life safety, landscaping, and snow. Not sure where to start? An energy audit finds the waste and funds the fix.
Get in touchWHO WE SERVE
Every kind of commercial building.
Office & corporate
Tenant comfort, uptime, and energy costs under control.
Industrial & manufacturing
Process piping, automation, and the power to run it.
Warehouse & logistics
Docks, floors, charging, and robots that earn their space.
Retail & hospitality
Fast fixes and clean installs that never touch open hours.
Healthcare & medical
Code-first work in buildings that can't go down.
Multifamily & HOA
One contact for the whole property, every trade.
POPULAR PROJECTS
What we get asked for most.
QUESTIONS
Straight answers.
What should be included in a Fontana commercial contractor bid?
The bid should name the exact scope, exclusions, trades, equipment interfaces, testing, documents, and permit duties. We use a responsibility matrix so each handoff has an owner.
How do city reviews affect a commercial project in Fontana?
A Fontana project review may involve Fire, Building and Safety, and Engineering. Required plan changes can affect grading, drainage, lighting, landscaping, trade scope, and the start date.
When is a contractor a poor fit for a Fontana facility project?
A contractor is a poor fit when key interfaces have no named owner or when a general guide is used in place of project-specific plans and specifications.
What site control records can Flux plan for a commercial job?
We can define controlled credentials and time-stamped access logs for subcontractors. Flux uses this to the project team remove access when a worker rotates off the site.
GET STARTED
One call away.
Tell us the building and the problem. We bring the plan, the price, and the crew. Site visits are free, always.