Generator Services
Generator Services | Generators | Electrical | Jefferson City
Life in Jefferson City doesn’t pause for a storm or an unexpected outage, and neither should your home or business. HEP’s licensed electricians pair local know-how with industry-leading technology to design, install, and maintain reliable generators that keep your lights on, your data protected, and your daily routines uninterrupted. From sizing the perfect unit and securing permits to seamless panel integration and regular tune-ups, we handle every detail so you can focus on what matters most—without worrying about flickering power.
When seconds count, you’ll appreciate our 24/7 emergency response, transparent pricing, and commitment to safety. Whether you need a compact backup system for your residence or a heavy-duty solution for a commercial site, our team delivers prompt service backed by years of hands-on experience. Trust HEP to keep Jefferson City powered today, tomorrow, and every time the grid lets you down—because dependable generators are more than equipment; they’re peace of mind.
FAQs
What types of generators do you service and install in Jefferson City?
We work on and install a full range of residential, commercial, and light-industrial generators, including standby natural-gas/propane units (7 kW–150 kW), diesel backup systems up to 500 kW, and portable gasoline models. Our factory-trained technicians are certified for leading brands such as Generac, Cummins, Kohler, Briggs & Stratton, and CAT. Whether you need a compact unit for essential home circuits or a three-phase set for a critical business operation, we can supply, install, and maintain the right generator for Jefferson City’s electrical codes and climate conditions.
How do I determine the correct size generator for my home or business?
Proper sizing starts with a load calculation. During a free on-site assessment, our licensed electrician will: (1) list the appliances, HVAC equipment, and critical circuits you want backed up, (2) measure starting and running amperage, (3) factor in voltage drop for longer feeder runs, and (4) apply a 20 % growth margin. For homes, this often results in a 14-22 kW standby unit; for small businesses, a 48-100 kW three-phase generator is common. An accurately sized generator avoids overload shutdowns, optimizes fuel efficiency, and meets the Jefferson City Building & Inspection Division’s requirements.
What is involved in a professional generator installation?
A turnkey installation typically takes 1–2 days and includes: • Site survey and code-compliant placement at least 5 ft from openings. • Concrete or composite pad preparation. • Delivery and crane-set of the generator. • Gas line sizing and connection by our master plumber (for natural gas/propane units). • Installation of an automatic transfer switch (ATS) next to your main panel. • All electrical conduit, wiring, and load-shed modules. • Start-up, programming, and a 30-minute full-load test. • Final inspection with the City of Jefferson and Ameren gas/electric utilities. You receive a commissioning packet with wiring diagrams, warranty registration, and maintenance schedule.
Do I need a permit or inspection for a standby generator in Jefferson City?
Yes. The City of Jefferson requires an electrical permit and, for gas-fueled units, a plumbing/mechanical permit. We handle the entire permitting process, including submitting load calculations, site drawings, and manufacturer installation specs. Once the installation is complete, a city inspector verifies clearances, bonding/grounding, gas pressure, and ATS wiring before final approval. Skipping permits can void manufacturer warranties and lead to fines, so professional compliance is essential.
How often should my generator be serviced, and what does your maintenance plan cover?
Most manufacturers recommend semi-annual service in our Mid-Missouri climate—once before summer storm season and again before winter ice events. Our Jefferson City Maintenance Program includes: • Oil and filter change • Spark plug replacement (gas units) or fuel filter and water separator service (diesel) • Battery load test and terminal cleaning • Coolant level and belt inspection • Firmware updates for the controller • 30-minute exercise under load bank • Detailed digital report with photos. Enrollment also gives you priority 24/7 repair dispatch and parts discounts.
Do you offer 24/7 emergency generator repair, and what is your response time within Jefferson City?
Yes—our technicians are on call day and night, 365 days a year. For customers inside Jefferson City limits we average a 90-minute arrival during normal weather and 2–4 hours during widespread outages. Our service vans carry common parts—starter motors, voltage regulators, controllers, and fuel solenoids—so 85 % of repairs are completed on the first visit. If a major component must be ordered, we provide a temporary rental generator to keep your power on until the permanent unit is restored.