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Best generator install pros near Lexington, OK

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Top-Rated Generator install pros in Lexington - Updated Nov 2026

Avatar for Lofton Locklear
Lofton Locklear
5.0(
1
)
Fixed Generator - RepairPortable Generator - RepairFixed Generator - Install+3 more

Serving Lexington, OK and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

We founded Tri-L Electric out of a pure passion for people. Our electricians goals, ambitions, and inspirations all come together to form a truly amazing electrical company that all of us are proud to be a part of. Since opening we have become masters at our craft. Our electricians go above and beyond your electrical requests to keep you coming back for more. Explore the rest of our site to learn more about what electrical services we offer, and get in touch with one of our qualified electricians with any questions.

Response time9 hrs
11 neighbors recently requested a quote
Whelans Electrical Services
New to Angi
Portable Generator - Repair

Serving Lexington, OK and surrounding areas

Approved

Emergency services offered

Small jobs welcome

Offers commercial services

At Whelan Electrical Services, we are committed to providing safe, reliable, and high-quality electrical solutions for residential and light commercial customers. With years of hands-on experience in electrical construction, maintenance, troubleshooting, and service work, we take pride in delivering honest recommendations, exceptional workmanship, and outstanding customer service.\nWhether you need electrical repairs, panel upgrades, lighting installation, generator connections, EV charger installation, troubleshooting, or new electrical installations, we approach every project with professionalism, attention to detail, and a commitment to safety. Our goal is to complete every job correctly the first time while exceeding customer expectations.\nWhen you choose Whelan Electrical Services, you’re choosing dependable service, transparent communication, and quality work you can trust.

GENERATOR SUPERCENTER
4.2(
36
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Lexington, OK and surrounding areas

In business since 1980

Free estimates

Credit card accepted

"The electricians and plumbers were very professional in their demeanor. They worked as a team, everyone knew what to do and how to do it. They answered all my questions, but didn't let that distract them from their job. I was impressed with the speed of the installation. They cleaned up after themselves and took their trash with them."
Response time3 days
Recommended by100%of homeowners
Avatar for Active Electric LLC.
Active Electric LLC.
5.0(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lexington, OK and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"Outstanding! I have never had such professional and courteous and quick assistance from any other company in the 15 years I have lived in this area. I highly recommend Justin and his company, active electric!!"
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+4

Response time1 day
Response rate100%
Recommended by80%of homeowners
Avatar for Passion Electric
Passion Electric
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lexington, OK and surrounding areas

In business since 2015

Free estimates

Emergency services offered

"We’ve been very happy with the work we’ve had done by Passion Electric and we will definitely hire them again. Their team are all very professional and kind. Their work is excellent and timely and I am always impressed by the quick response time."
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+2

Recommended by100%of homeowners
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Generator Install FAQs, answered by experts

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The Lexington, OK homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.