Every part of your electrical system has an important job. Outlets provide convenient access to power, switches control lighting and equipment, breakers help protect circuits, and disconnects allow electrical systems to be shut down safely when needed. When one of these components becomes damaged, outdated, or unsuitable for the property, it can affect safety, convenience, and overall performance.
Hertzler Electrical Services provides professional installation of electrical components parts for homes, businesses, facilities, and job sites throughout Duncan, Marlow, and nearby Southwest Oklahoma communities. Our electricians install, replace, and upgrade components based on the electrical system, property layout, connected equipment, and intended use of each space.
Whether you need new outlets for a remodeled room, dedicated circuits for equipment, updated switches, replacement breakers, or controls for a commercial facility, our team can recommend a practical solution and complete the installation with long-term reliability in mind.
Serving since 2007
Duncan · Marlow · Southwest Oklahoma
Residential & commercial
Industrial & aggregate
Oil & gas operations
Contractors & job sites
The problem
Electrical systems are made up of many individual components that work together to distribute and control power. Although an outlet, switch, breaker, or junction box may appear simple, it must be correctly selected, wired, installed, and connected to the appropriate circuit.
The wrong component may not match the circuit rating, surrounding environment, equipment requirements, or electrical demand. Improper installation can also lead to loose connections, unreliable operation, overheating, repeated breaker trips, and damage to connected equipment.
Our electrical components parts installation services begin with an evaluation of the existing system and the purpose of the new component. We consider where it will be installed, what it will power or control, and whether the current wiring and circuit can support it.
This careful approach helps ensure each component works properly with the rest of the electrical system.
Scope of work
Every project is different. Some customers need a single damaged switch replaced, while others require several outlets, dedicated circuits, breakers, disconnects, and controls for a renovation or equipment installation.
01
Standard, GFCI, weather-resistant, high-demand and specialty receptacles installed where they are practical to use and correctly matched to the circuit.
02
Single-pole, three-way, dimmer, timer, occupancy and equipment controls placed for convenient, reliable operation.
03
Correctly rated breakers and protective devices installed to replace damaged, undersized or unreliable components.
04
Safe shut-off points and connections for HVAC units, machinery, pumps, workshop tools and commercial equipment.
05
New circuits for appliances and high-demand equipment so they no longer share power with unrelated devices.
06
Boxes, covers, fixtures and terminations installed for tidy, accessible and durable connections.
07
Every installed component and affected circuit tested for correct polarity, grounding, load performance and safe operation.
08
Electrical components can deteriorate because of age, heat, moisture, corrosion, heavy use, physical damage, or loose connections.
09
Electrical components are available in different ratings, configurations, and designs.
10
Loose, damaged, or improperly completed connections can create heat, arcing, unreliable operation, and equipment problems.
11
Outlets, switches, breakers, controls, and disconnects are often used every day.
12
New appliances, lighting systems, machinery, HVAC equipment, and technology may require different outlets, circuits, breakers, or controls.
13
Adding outlets, switches, controls, and dedicated circuits in practical locations can make a property easier to use.
14
Component installation provides an opportunity to review the related circuit, wiring, and panel capacity.
Related services
Electrical component installation is often part of a larger improvement. Hertzler Electrical Services provides related solutions that can help strengthen, expand, and protect your electrical system.
Professional generator installation provides backup power for selected circuits, essential equipment, or a larger portion of the property. The project may include transfer equipment, disconnects, breakers, wiring, and other necessary components.
A panel upgrade may be recommended when the existing panel is outdated, damaged, overcrowded, or unable to support additional circuits and electrical demand.
Our lighting installation services include fixtures, switches, dimmers, controls, wiring, and circuits for indoor, outdoor, commercial, security, and facility lighting.
Wiring upgrades may be needed when existing wiring is damaged, outdated, undersized, or unsuitable for new equipment and components.
Surge protection helps defend appliances, electronics, controls, and electrical components from sudden voltage changes caused by utility disturbances, switching events, and nearby lightning activity.
Hertzler Electrical Services has served Southwest Oklahoma since 2007. Our electricians work with homeowners, business owners, contractors, facility managers, industrial operations, aggregate companies, and oil and gas properties throughout Duncan, Marlow, and nearby communities.
Customers choose Hertzler for electrical components parts installation because we look beyond the individual device. We evaluate the circuit, wiring, panel capacity, connected load, installation environment, and intended use before recommending a solution.
Our team explains what needs to be installed, why it is recommended, and how it will support the electrical system. Whether the project involves one replacement outlet or multiple components for a larger improvement, we approach the work with the same attention to safety, reliability, and long-term performance.
Frequently tripped breakers, flickering lights, an overcrowded panel, limited circuit space, visible damage, or plans for new equipment may indicate that an upgrade is needed. A professional inspection can determine whether the problem involves the panel or another part of the system.
It depends on the available space, panel rating, electrical load, and condition of the system. Adding breakers is not appropriate when the panel is already at capacity or cannot safely support additional demand.
A panel upgrade may help when tripping is caused by insufficient capacity or overcrowded circuits. However, breakers may also trip because of faulty wiring, damaged equipment, or a short circuit. The cause should be diagnosed before work is recommended.
Not always. The panel and service capacity must be evaluated to determine whether they can support the generator, transfer switch, and selected backup circuits.
Yes. Hertzler Electrical Services provides electrical panel evaluations and upgrades for homes, businesses, facilities, industrial properties, construction sites, and specialized work environments.
Yes. We provide electrical panel upgrade services throughout Duncan, Marlow, and nearby Southwest Oklahoma communities.
An outdated or undersized panel can make it difficult to add equipment, complete renovations, or rely on consistent electr ical performance. Hertzler Electrical Services can inspect your system and recommend a practical solution based on your property’s actual needs.
Contact Hertzler Electrical Services to request an electrical service panel upgrade in Marlow & Duncan, OK, or a nearby Southwest Oklahoma community.

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Alternatively, you can give us a call at (580) 252-3703.