Generator and ATS Service and Maintenance
Comp-Utility services standby generators, automatic transfer switches, and paralleling switchgear for mission-critical facilities across Central Texas. We provide preventative maintenance, load bank testing, NFPA 110 transfer testing, and 24/7 emergency response on diesel and natural gas systems from every major brand. The goal is simple: backup power that starts and carries the load every time the grid fails.
What We Provide
Our Capabilities
Generator Preventative Maintenance
Engine, fuel, cooling, and battery service plus controls verification keep generators ready to start and run on demand.
Learn moreLoad Bank Testing
Controlled load testing proves rated capacity and prevents wet stacking from extended light-load operation.
Learn moreATS and Switchgear Testing
We test transfer switches and paralleling switchgear so the handoff between utility and generator is automatic and seamless.
Learn moreProven on Demand
Backup Power You Can Trust to Start
A generator that fails to start during an outage is worse than no plan at all, because you were counting on it. Regular maintenance, exercising, and load bank testing turn an assumption into a proven capability.
We service the entire backup chain, from the engine and fuel system through the ATS and switchgear, so the transfer to generator power happens automatically when utility power is lost.
The Comp-Utility Difference
Why Comp-Utility?
Trusted Since 1992
We have designed, installed, and maintained mission-critical power and cooling infrastructure across Central Texas since 1992, through every generation of the technology.
Engineer-Owned and Operated
Comp-Utility is owned and operated by engineers, with licensed Texas Professional Engineers (P.E.) on staff. That rigor anchors every design, specification, and installation.
24/7 Emergency Response and Preventative Maintenance
Our technicians provide preventative maintenance programs and 24/7 emergency response, with rapid on-site dispatch across Central Texas when facilities need us most.
Long-Standing Distribution Partner
As a long-standing distribution partner of Eaton, Schneider Electric, and Vertiv, we specify best-in-class systems and back them with factory-grade service.
Licensed, Certified & Recognized
We hold ourselves to the standards of the institutions we serve, from professional licensure and jobsite safety to the industry organizations that set the bar for mission-critical work.
Licensed Professional Engineers
State of Texas (TBPE)
OSHA 30 Certified
Field Technicians
AFCOM Member
Data center industry association
7x24 Exchange Member
Mission-critical infrastructure
Frequently Asked Questions
How often should a standby generator be maintained?
Standby generators should receive preventative maintenance at least annually, with regular exercising and periodic load bank testing. For life-safety applications, NFPA 110 sets inspection, testing, and maintenance expectations. Service includes oil, filter, coolant, and battery checks plus controls verification. Comp-Utility sets the cadence based on the equipment and how critical the load is.
What is load bank testing and why does my generator need it?
Load bank testing applies a controlled artificial load to verify the generator carries its rated capacity and to burn off the unburned fuel and carbon that accumulate during light-load running, known as wet stacking. A no-load monthly exercise does not prove capacity. Periodic load bank testing confirms the generator will actually perform when called upon.
What is NFPA 110 transfer testing?
NFPA 110 is the standard for emergency and standby power systems. Transfer testing verifies that, on loss of normal power, the generator starts and the automatic transfer switch transfers the load within the required time, then retransfers and shuts down properly when utility power returns. Comp-Utility performs and documents this testing for compliance and peace of mind.
Why would a generator fail to start during an outage?
The most common causes are weak or dead starting batteries, fuel issues, controls left out of automatic mode, low coolant, and deferred maintenance. The majority are preventable. If your generator failed, call (512) 346-0999 and we will find the root cause, correct it, and put a maintenance and testing program in place to prevent a repeat.
Do you service both diesel and natural gas generators?
Yes. We service diesel and natural gas standby generators across major brands including Caterpillar, Cummins, Kohler, Generac, and MTU. As a vendor-agnostic provider we maintain mixed fleets, and we can advise on fuel type, runtime, emissions, and bi-fuel options based on your site and goals in Central Texas.
Can you test the generator and ATS without risking my live load?
Yes. We plan testing around your operations, verify bypass and backup paths first, and use closed-transition methods or scheduled windows where appropriate. For ATS testing we validate each step of the transfer sequence. Our engineers design a test plan that proves NFPA 110 performance while keeping your critical load protected.
What does generator preventative maintenance include?
It includes engine oil and filter changes, coolant and fuel system inspection, starting battery testing, air and fuel filter service, controls and alarm verification, and a documented condition report. We also exercise the unit and can perform load bank testing. The scope follows manufacturer requirements and NFPA 110 for life-safety systems.
Do you provide 24/7 emergency generator response?
Yes. Comp-Utility provides 24/7 emergency response for generator, ATS, and switchgear failures across Central Texas, with rapid on-site dispatch from Austin. Call (512) 346-0999 and our technicians will troubleshoot the engine, fuel, controls, and transfer scheme to restore backup power as quickly as the situation allows.