Commercial

Commercial Generator Installation & Repair

Liquid-cooled standby power for facilities that cannot afford to go dark — specified, installed, permitted and maintained by one licensed contractor.

Get a Free Quote Call (346) 420-5744

Kohler and Generac liquid-cooled
Load studies before equipment selection
Service plans up to 150 kW
Texas Electrical Contractor TECL #37583

Where commercial differs from residential

Past roughly 26 kW you leave air-cooled equipment behind and move to liquid-cooled units, and the job changes character with it. Three-phase service, larger transfer switches, fuel supply that has to be engineered rather than assumed, and in many cases code requirements around life-safety and egress circuits that do not apply to a house.

Sizing stops being a rule of thumb too. Commercial load profiles have motor starting characteristics, non-linear loads from drives and UPS systems, and future growth to account for. That warrants an actual load study, not a checkbox estimator — the sizing tool on this site is built for homes and will not scope a building.

A completed Generac liquid-cooled standby generator installed on a poured concrete pad by Critical Power Solutions — One of ours — liquid-cooled unit set, pad poured, ready for commissioning.

Critical Power Solutions crew positioning a liquid-cooled Kohler generator lifted from a flatbed by crane

Who we do this for

Medical and dental: Refrigerated medication, powered chairs, sterilisers and records systems that cannot simply stop.
Restaurants and food service: Walk-ins and reach-ins. A single lost freezer of product often exceeds a year of service plan.
Retail and multi-tenant: Lighting, POS and card terminals. Closed during an outage is revenue you never recover.
Warehouse and light industrial: Dock equipment, compressors, process loads and life-safety systems.
Offices and professional space: Servers, network gear and the ability to keep working through a regional outage.

Service and repair

Commercial units need servicing more often than residential ones, because they tend to carry heavier loads and run more. Our GenWatch plans cover liquid-cooled equipment up to 150 kW — pricing on the service plans page. We also take on repair work regardless of who installed the unit, including warranty service on Kohler and Generac.

For heavier commercial applications we also work with Cummins equipment. Note that we hold manufacturer certification with Kohler and Generac specifically.

Load bank testing. A generator that exercises weekly with no load attached proves the engine turns over. It proves nothing about whether the unit will carry your building. For commercial standby — particularly anything supporting life safety — periodic load bank testing is how you find out before the outage does.

One contractor for both scopes

If the project also involves a finish-out or a service upgrade, we handle the electrical contracting side under the same license — so the generator, the transfer switch and the distribution work are not split across two trades who each assume the other owns the interface.

Scoping a commercial project

Call (346) 420-5744 or send us the details. If you have drawings, a panel schedule or an existing one-line, send those too — it shortens the process considerably.

FAQ

Common questions

What is the 80% rule for generator sizing?

A standby generator should not run continuously above about 80% of its rated capacity. Sizing to 100% leaves nothing in reserve for startup surges, degrades the unit faster, and means any load you add later pushes it past its limit. When we size a system we work out your running load, add the largest single startup surge, then allow that 20% headroom on top. It is why a 22 kW unit is not the right answer for a 22 kW load.

Do I need to back up the whole house, or just some circuits?

Either works, and the difference is mostly cost. Backing up essential circuits — fridge, lights, outlets, internet, one HVAC zone — needs a much smaller unit. Whole-home coverage means not thinking about it during an outage. The sizing tool on this page will show you what each approach costs you in kW, which is usually the clearest way to see the trade-off.

Do I need HOA approval for a generator?

In most Fort Bend master-planned communities, yes. Exterior mechanical equipment normally goes through architectural review, and the committee will look at placement, screening, side-yard clearance and whether gas piping is visible from the street. It is worth starting that process early — approval timelines are set by the HOA, not by us. We can provide the equipment details and placement drawings the submission usually needs.

Do I need a permit to install a standby generator in Texas?

Yes. A standby generator installation involves both electrical and, in most cases, fuel-gas work, and that requires a permit and inspection from whichever authority has jurisdiction over your address. In Fort Bend County that may be the county or your city, depending on where you sit. We pull the permit and coordinate the inspection as part of the job, so it is not something you need to chase yourself.

Get a straight answer on what it costs

Tell us about your home or building and we'll come out, size it properly and put a written number in front of you. No charge for the visit.

Request a Free Quote Call (346) 420-5744

TECL #37583 · Kohler Certified · Generac Authorized Dealer ·BBB Accredited Business · Veteran & family owned