- "ELECTRICIAN SINCE 2014"
- "TECL #30865"
- info@topnotchelectrician.com
- 324 W US Hwy 82, Sherman, TX 75092
Stay powered through any outage. Factory-certified Generac installation from a licensed, local team that’s served North Texas since 2014.
Outage? Back on in seconds — automatically.
We’ll call you shortly to set up your free on-site assessment. Need us sooner?
Call (972) 379-8646Texas outages aren’t rare anymore. Grid strain, ice storms, and summer heat waves all take down power across Grayson and Collin counties — usually at the worst possible time.
A Generac standby generator switches on automatically within seconds of an outage and keeps your whole home running until the grid comes back. No cords, no refueling, no sitting in the dark.
Automatic, in secondsIt senses the outage and starts itself — even when you’re away.
Powers what mattersAC and heat, fridge and freezer, well pump, medical equipment, security systems.
Runs as long as the outage doesFed by your natural gas line or propane tank — no gas cans, no babysitting.
Honest answer: it depends on your home — so we price every system after seeing what you want to power and how your property is set up. That’s why the quote is free and done on site. Doing research first? Our full Texas cost guide covers the published 2026 ranges by size, fuel, and install complexity.
What goes into your quote:
Generator size (kW) — how much of the home you want backed up
Fuel type — natural gas or propane homes can often back up the whole house; all-electric homes may need a larger unit
Distance from your meter and panel — longer runs mean more wire and pipe
Trenching — if gas or electrical lines need to cross the yard
Electrical work — transfer switch, panel work, load management
Permits & dispatch — we pull the permits and handle the inspections
You don’t have to pay for it all up front. We offer flexible financing with several plans to choose from — we’ll walk you through the options with your quote.
It comes down to one question: what do you want running when the power’s out?
If your home has natural gas or propane, a properly sized Generac can often power the whole house — AC, kitchen, well pump, all of it. All-electric homes draw more, so they may need a larger unit.
Want to stretch a right-sized unit further? We install load-shedding management, which lets the generator put what matters most first — so a smaller unit can still protect the essentials without missing a beat.
We size every system on a free on-site assessment — no guesswork, no overpaying for capacity you don’t need. Want a head start? Our sizing guide’s 30-second quiz shows the range homes like yours land in.
Our most installed whole-home size — enough capacity for most North Texas homes, including air conditioning.
Ties into your existing gas line and runs as long as the outage does — no tank to watch, no scheduling refills. The most common setup in Sherman and McKinney neighborhoods with gas service.
Runs off your on-site tank, which makes it the go-to for rural Grayson County properties without a gas line. We’ll size the system around your tank so you know exactly what to expect.
A Generac is one of the most reliable machines you can put on your property, and Generac backs it with one of the strongest warranties in the business.
Here’s what most homeowners don’t know: that warranty depends on a correct install. Size it wrong or wire the transfer switch improperly, and you can void coverage on a five-figure investment.
We’re factory trained and Generac certified. We install to spec every time — so your warranty stays intact and your generator starts the moment you need it.
Already have a generator — or want to keep your new one outage-ready? We service and repair Generac generators across Sherman, McKinney, and North Texas.
Our maintenance plans keep your generator tested, tuned, and ready before the next storm — and routine maintenance helps keep your Generac warranty valid.
For most Generac home standby generators: oil change, oil filter, spark plugs, air filter, battery inspection, and valve adjustment.
The same thorough process for larger liquid-cooled units — bigger machines with costlier service parts.
Factory-trained & Generac certifiedInstalled to spec, warranty intact.
Licensed (TECL #30865) & insuredA real electrical contractor, not a middleman.
Local & family-owned since 2014Sherman and McKinney are home turf.
Honest pricing & flexible financingPriced after a real assessment — never a hard sell.
24/7 emergency serviceStorms don’t keep business hours. Neither do we.
1,000+ happy North Texas homeownersFive stars on Google and Facebook.
“Colby and his helper did an exceptional job installing the electrical components for our generator installation. Quick and clean. I’d highly recommend Top Notch.”
“By far the most professional and down-to-earth company… the work done was perfection.”
Free on-site assessmentWe walk your property, look at your panel and fuel supply, and listen to what you want powered.
Right-size & quoteYou get a clear, custom quote — with financing options — for exactly what your home needs.
Certified install, permits handledFactory-trained installation to Generac spec. We pull the permits and manage inspections.
Power on + full system testWe simulate an outage, verify the automatic transfer, and walk you through everything.
Usually, yes. Homes with natural gas or propane can often back up everything — AC, kitchen, well pump — with a properly sized unit. All-electric homes draw more and may need a larger generator. Either way, load-shedding management can prioritize your essentials so a right-sized unit covers what matters most. We confirm it all during your free on-site assessment.
It depends on what you want running during an outage, your home’s square footage, and your fuel type. The Generac 24kW is our most popular whole-home choice for North Texas, but smaller and larger systems make sense for plenty of homes. We measure your actual loads on site instead of guessing from a chart — that’s how you avoid overpaying.
Most installations take about a day on site once your unit has arrived and permits are approved. The full process — assessment, quote, permitting, installation, and inspection — varies by city and utility, and we handle all of the scheduling and paperwork for you. We’ll give you a realistic timeline with your quote.
Yes — flexible financing with several plans to choose from, so you don’t have to pay for the whole system up front. Terms vary by plan and approval; we’ll walk you through the options when we deliver your quote.
Yes. We service and repair Generac generators across Sherman, McKinney, and the surrounding North Texas area — including units we didn’t install. We also offer maintenance plans that keep your generator tested, tuned, and outage-ready, which helps keep your Generac warranty valid too.
Generac pioneered home standby power, and it’s one of the most reliable machines you can put on your property — backed by one of the strongest warranties in the business, with parts and support that are easy to come by. We’re factory trained and certified on Generac equipment, so we can install, service, and repair it to spec.
Get your free, no-pressure quote. Call us or send the form — either way, you’ll talk to a local, factory-certified installer, not a call center.
Free assessment. No obligation. A factory-certified install that protects your Generac warranty.
Top Notch Electrician · Licensed & insured · TECL #30865 · Generac® certified installer · Serving Sherman, McKinney, Grayson & Collin counties since 2014
