Reliable Generator Service| Certified Experts You Can Trust

Power outages can disrupt homes and businesses – don’t wait for the next blackout! Ferezco Power delivers expert generator services, making sure your backup generator runs flawlessly when you need it the most. Home backup generator services or commercial generator services, our certified technicians provide fast, reliable repairs, maintenance, and installations. Looking for a good generator service provider with a professional team? Then, you are in the right place. Ferezco Power System brings the best generator services in San Antonio and across Texas. We have a team of technicians who know their way around generators and how they work. If your generator is facing problems or wants some maintenance, we will help you with everything!

Stay powered – trust Ferezco.

Need Fast and Credible Generator Services in San Antonio, TX?

Ferezco Power System is known for bringing quality generator services to the residents of San Antonio and surrounding areas of Texas. Our goal is to help you take care of your generator in a better way. It can be anything from doing a small maintenance service, helping you decide which generator would be best for you to running load tests, and giving your generator needed replacements. To make sure everything is excellent, we have a team of skilled technicians who have experience in providing generator services. With us, you can sit back and relax knowing your generator is in the best condition, and working smoothly. Ferezco prioritises your safety, comfort and customer satisfaction. That’s why we believe in doing a detailed inspection before and after our generator service. Connect with us today!
Generator Service
25+ Years Experience
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600+ 4.9/5 Avg. Rating
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24/7 Generator Services
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Licensed & Insured
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Power You Can Rely On - Certified Generator Experts

At Ferezco Power, we don’t just provide generator service – we make sure that you get uninterrupted power. Our certified technicians specialize in installation, maintenance, and repair for residential and commercial generators, keeping your power systems running at peak performance.

Industry-Certified Expertise You Can Trust

Why Choose Ferezco for Generator Service?

Generator Services in San Antonio, TX

Our Generator Services

Generator Repair

A malfunctioning generator can end up making you powerless at important moments. Our generator service experts quickly diagnose and fix electrical issues, engine failures, battery malfunctions, and fuel system problems. We work with diesel, propane, and natural gas generators, and get their peak performance back. Be it an emergency repair or a scheduled one, we will provide you with fast solutions.

Generator Maintenance

Routine service is important to avoid any failures and make sure of long-term reliability. Our maintenance plans include oil and filter changes, coolant checks, battery inspections, transfer switch testing, and load bank testing. Regular servicing reduces the risk of breakdowns, increases equipment life and keeps your power system ready for outages. At Ferezco Power System, we take care of your generator’s needs, providing residential and commercial generator solutions that guarantee uninterrupted power.

Generator Inspection

Regular generator service inspections detect hidden issues before they cause failure. We perform comprehensive diagnostics, fuel system evaluations, voltage testing, and transfer switch checks to make sure your backup power system is operating at full capacity. Our experts identify possible problems early, saving you from costly repairs and unexpected outages. Home backup generators or large-scale commercial units, Ferezco Power System delivers thorough inspections to keep your system compliant, efficient, and always ready to perform when needed.

Generator Transfer Switch

A generator transfer switch automatically shifts power during an outage, keeping your home or business running. We install, repair, and maintain transfer switches for home backup generators and commercial generator services.
Ensure a smooth transition during power failures - contact us for expert installation today!

Generator Load Bank Testing

A generator must handle full power loads before an actual outage happens. Our generator service includes load bank testing, which simulates real-world electrical demand to evaluate voltage regulation, cooling efficiency, and fuel system performance. This proactive test makes sure your generator can sustain extended use under heavy loads. At Ferezco Power System, we provide accurate load testing for residential and commercial generators to make sure your backup power system is always prepared for emergencies.

Generator Commissioning, Testing & Installation

Proper generator service starts with expert installation. We take care of commissioning, system testing, and full-scale installations, making sure it is working properly from day one. Our technicians assess power requirements, integrate fuel lines, wire transfer switches, and conduct post-installation performance tests. Ferezco Power System provides professional installation services that guarantee seamless operation, compliance with safety standards, and reliable backup power when it's needed most.

Diesel Generator Repair

Diesel generators offer strength and efficiency, but fuel contamination, clogged filters, and mechanical wear can cause failures. Our generator service experts specialize in diesel generator diagnostics, fuel system repairs, exhaust maintenance, and engine tuning. Regular servicing will prevent carbon buildup, boost fuel regulation, and increase the machine’s life. We will keep your power system running smoothly for homes, businesses, and industrial applications, even in the harshest conditions.

Generator Monitoring Solutions

Real-time generator monitoring avoids any unexpected failures by tracking power output, fuel levels, battery health, and system efficiency. Our generator service includes remote monitoring systems that help homeowners and businesses receive performance alerts, maintenance reminders, and fault detection notifications. With this, you can identify possible issues before they become too costly to repair.

Propane Services

Need a propane-powered generator? We install, repair, and maintain propane generators in San Antonio, Texas. Our team will make sure your system is safe and ready to deliver backup power when needed.
Call now for expert propane generator services!

Generator Consulting Services

Choosing the right generator can be overwhelming. Our generator consulting services help you select, install, and maintain the best home backup or commercial generator for your needs. We assess power requirements, efficiency, and long-term reliability.
Schedule a consultation today for expert guidance!
Types of Generators

Commercial and Residential Generator Services

Trusted Generator Service for Homes & Businesses in San Antonio, Texas

At Ferezco Power System, we provide expert generator services for both homes and businesses.
  • Home Backup Generator Services – Make sure there are uninterrupted power backup generator services for your home. We handle installation, maintenance, and repairs, so your generator is always ready during outages.
  • Commercial Generator Services – Keep your business running with professional commercial generator services. From preventative maintenance to emergency repairs, we make sure your backup power system works at peak efficiency.
Trust Ferezco Power System for expert generator service that keeps your power on – anytime, anywhere.

License & Warranty

Licensed & Insured for Your Peace of Mind

At Ferezco Power System, we take safety and compliance seriously. Our team is fully licensed, insured, and certified, ensuring that every generator service we provide meets the highest industry standards.

  • Certified Experts – we are Cummins Certified, Propane Certified, and Licensed Electrical & Plumbing Contractors.
  • Fully Insured – Protecting your home and business with comprehensive coverage.
  • Code-compliant – All generator services follow local regulations for safety and reliability.
Trust Ferezco Power for professional, risk-free generator services you can depend on.
Ferezco Power Location

Generator Service in San Antonio, TX

Generator Services Near You - Areas We Serve

Ferezco Power System provides expert generator services across multiple regions, making sure of reliable backup power solutions for homes and businesses. Whether you need backup generator services, home backup generator services, or commercial generator services, our certified technicians are ready to assist.
We provide generator service in:
Need professional generator services in your area? Contact Ferezco Power today!

Generator Service in San Antonio, TX

San Antonio’s Trusted Choice for Generator Services

GW
GW
Fernando and Gabriel did an outstanding job installing my Generac 22K generator. The concrete pad they poured with the pre-piped wiring was excellent and resulted in a very clean look. They conducted a thorough test to ensure everything was just right. I am a very satisfied customer and highly recommend them.
Marty
Marty
Previous dealer botched the job. Generator was too small and installation was incorrect. Ferezco explained everything to me and showed what needed to be done.
Very professional installation!
Would definitely recommend !
Hal
Hal
This dealer is very knowledgeable in every aspect of the product and does a very fine job of it. Everything went very smoothly and everything worked as it should. His employe that did the install did everything right the first time and he is very good.
EJ49
EJ49
Extremely knowable. Fair priced. Very thorough. Chose him to do annual maintenance on our whole-house generator. Wish we had known him when we had the unit installed. Customer for life. Yes, I recommend this dealer.
Old Man 50
Old Man 50
Ferezco Power did the install on my whole house back generator system along with the propane tank. Professional from start to finish. On time fair price and top notch quality install.
Jerry
Jerry
Courteous and professional, Very capable from a technical, standpoint. Good workmanship and very neat.

Questions About Generator Service

For a 200 amp service, you typically need a generator with at least 20-22 kW (kilowatts) of power. This size ensures that you can run most, if not all, of your home or business’s essential circuits during a power outage.

Our team at Ferezco Power provides expert service for Generac generators in San Antonio and the surrounding areas. We offer maintenance, repair, and installation services with certified technicians.

The cost to service a Generac generator typically ranges from $200 to $500, depending on the type of service required and the model of the generator. Regular maintenance checks are usually at the lower end of this range, while more extensive repairs and parts replacement may cost more.

Servicing a Generac generator involves several steps including changing the oil, replacing the air and oil filters, checking the battery status, and running a full diagnostic test to ensure all components are functioning correctly. It’s recommended that you have a certified technician perform these services to maintain the warranty and ensure the job is done right.

For a 100 amp service, a generator with at least 10-12 kW of power is recommended. This size will cover the basic needs of most smaller homes or businesses without overloading the generator.

Regular maintenance ensures your generator operates efficiently when you need it most. It extends the lifespan of the unit, prevents unexpected failures, and ensures compliance with warranty requirements.

Choose What Your Generator Deserves with San Antonio Generator Services Today!

Ferezco Power Systems is rated to be the best San Antonio generator service. We will make sure that your generator is in its best condition and keep your house brightly lit as it should.

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