- 2417 US-81, Marlow, OK 73055 | License #OK48978
Power outages can interrupt your home, business, facility, or job site without warning. Severe weather, utility problems, equipment failures, and grid disruptions may leave lighting, refrigeration, security systems, HVAC equipment, communications, machinery, and other essential systems without power. Hertzler Electrical Services provides professional generator installation services in Duncan, Marlow, and nearby Southwest Oklahoma communities.
Our electricians help property owners plan backup power around the size of the property, essential electrical loads, available space, and expected demand. Whether you want to protect your home during an outage or maintain important business operations, we install generator systems with safety, reliability, and long-term performance in mind.
Serving since 2007
Duncan · Marlow · Southwest Oklahoma
Residential & commercial
Industrial & aggregate
Oil & gas operations
Contractors & job sites
Right-sized
A generator must be correctly sized, safely connected, properly positioned, and integrated with the existing electrical system. A unit that is too small may not support the equipment you need, while an incorrectly installed system may create performance or safety concerns.
Our generator installation services begin with an evaluation of your property and electrical demand. We discuss which appliances, equipment, systems, or areas you want to keep operating during an outage. From there, we identify the generator capacity, transfer equipment, electrical connections, and installation approach required for the project.
Backup power may be planned for an entire property or selected essential circuits. Depending on your priorities, the generator may support lighting, refrigerators, freezers, heating and cooling equipment, medical devices, security systems, well pumps, office equipment, communications, or other critical loads.
Scope of work
Every project is different, so the final scope depends on the property type, generator capacity, existing electrical system, fuel source, installation area, and the equipment you want to power.
01
Before recommending a generator, our electricians review the circuits and equipment that need backup power. We consider running loads, starting loads, panel capacity, and combined electrical demand. This helps determine an appropriate generator size and lowers the risk of overloading the system.
02
Correct sizing is one of the most important parts of installation. We determine whether the property needs power for a few essential circuits, a larger portion of the electrical system, or broader whole-property coverage. Recommendations are based on actual electrical demand rather than a general estimate.
03
Generator placement affects safety, ventilation, access, noise, performance, and future maintenance. We review the available area and identify a practical location that supports proper clearance and connection to the electrical system.
04
A transfer switch allows the electrical system to move safely from utility power to generator power. An automatic transfer switch can detect an outage and activate a compatible standby generator without requiring the owner to reconnect circuits manually. Proper transfer equipment also helps prevent generator power from feeding back into utility lines.
05
Our team completes the electrical work needed to integrate the generator with the property. This may include wiring, conduit, breakers, disconnects, dedicated circuits, load-management equipment, and connections to the transfer switch and electrical panel.
06
Some properties may require a panel upgrade, circuit modification, or capacity improvement before generator installation. If the existing panel is outdated, damaged, overcrowded, or unable to support the planned system, we explain the concern and recommend the appropriate next step.
07
After installation, we test the generator and connected components for proper operation. We verify that transfer equipment responds correctly, selected circuits receive power, and the system works as intended. We also explain basic operation and routine maintenance expectations.
Benefits
A properly installed generator can keep essential systems running when utility power is unavailable. This may help maintain lighting, refrigeration, climate control, communications, security equipment, and other important electrical loads.
Generator connections must protect the property, occupants, electrical system, and utility workers. Professional installation helps reduce risks associated with improper wiring, overloaded circuits, unsafe temporary connections, and electrical backfeeding. Property owners can also review the CDC’s generator safety guidelines for additional information about safe generator placement and operation.
A standby generator with compatible automatic transfer equipment can respond when utility power fails. This provides added convenience for homeowners and helps businesses or facilities restore selected operations with less delay.
Extended outages can lead to spoiled food, uncomfortable temperatures, disabled security systems, equipment shutdowns, or lost productivity. Backup power can help reduce the impact of these problems.
Commercial and industrial properties may rely on electricity for payment systems, refrigeration, lighting, communications, machinery, computers, and operational equipment. Generator installation services can help protect essential functions and reduce unnecessary downtime.
The opportunity
A dependable backup power system may require additional electrical improvements to ensure the generator can operate safely and efficiently. Hertzler Electrical Services provides related solutions that can prepare, strengthen, and protect your property’s electrical system.
Needed when the panel is outdated, damaged, overcrowded or unable to support the generator, transfer equipment and increased demand.
Outlets, switches, breakers, disconnects, transfer equipment, dedicated circuits and controls.
Improves visibility, security and efficiency; lighting circuits can be included in the backup power plan.
Recommended when wiring is damaged, outdated or undersized for current equipment and demand.
Defends appliances, electronics and generator controls against voltage spikes from utility disturbances and lightning.
Hertzler Electrical Services has served Duncan, Marlow, and nearby Southwest Oklahoma communities since 2007. Our electricians work with residential, commercial, industrial, construction, aggregate, and oil and gas properties, giving us experience with a wide range of electrical demands and operating environments.
Customers choose our team for generator installation services because we provide careful system evaluations, practical recommendations, dependable workmanship, and clear communication. We consider the generator, panel, wiring, transfer equipment, electrical loads, available capacity, and future needs of the property.
As a local electrical company, we understand that backup power needs vary. Our goal is to design a system that supports the equipment you truly need rather than recommending unnecessary capacity or components.
Generator size depends on the appliances, equipment, and circuits you want to power. An electrical load evaluation helps calculate running and starting demand so the generator can be sized appropriately.
Some generators can support most or all of a property, while others serve selected essential circuits. The right approach depends on generator capacity, electrical demand, fuel availability, and your backup power priorities.
An automatic transfer switch detects a utility outage and transfers compatible electrical loads to a standby generator. When utility power returns, it reconnects the property to the utility and allows the generator to shut down.
Possibly, but the panel must first be evaluated. An older, damaged, overcrowded, or undersized panel may require repairs, circuit changes, or an upgrade before the generator can be connected safely.
Yes. Routine inspections, testing, battery checks, fluid service, and manufacturer-recommended maintenance help keep the generator ready and may reduce the risk of failure during an outage.
Yes. Hertzler Electrical Services provides generator installation services in Duncan, Marlow, and nearby Southwest Oklahoma communities for residential, commercial, industrial, and specialized properties.
Do not wait until the next outage to determine whether your property is prepared. Hertzler Electrical Services can evaluate your electrical system, discuss your backup power priorities, and recommend an installation designed around your property.
Contact Hertzler Electrical Services to request generator installation services in Duncan, Marlow, or a nearby Southwest Oklahoma community.
Get a custom quote for all your residential and commercial electrical needs by filling out this form.
Alternatively, you can give us a call at (580) 252-3703.