TJF Electric LLC — CT Licensed Electrician, Willington CT
Services/Whole-House Generator
⭐⭐⭐⭐⭐5.0★ — Generac & Kohler Authorized Installer

Whole-House Standby Generators

Generac · Kohler · 22-24kW · Auto-Transfer · Well-Pump & HVAC Sized

Eastern CT storms knock out grid power 2-5 times a year. A whole-house standby generator pays for itself in 2-3 outages of avoided freezer-load loss, frozen pipes, and lost work-from-home days.

What's Specific About Whole-House Generators in Eastern CT

Whole-house standby vs portable — the real difference

A whole-house standby generator is a permanently installed unit (typically natural gas or propane) connected to your panel via an automatic transfer switch (ATS). When utility power fails, the ATS senses the outage, starts the generator, and seamlessly transfers your home's load to the generator — typically within 10-30 seconds. No extension cords, no manual switching, no fueling during the storm. Portable generators require manual hookup (interlock kit or generator inlet box), routine refueling, and don't auto-start.

Sizing — what your generator actually needs to cover

Most Eastern CT whole-house generators are sized between 18kW and 24kW. The right size depends on your simultaneous load: well pump (3-7 kW inrush), septic pump (1-2 kW), HVAC compressor (4-7 kW with soft starter), refrigerator/freezer (1-2 kW), and the rest of the house lighting and outlets (3-5 kW). Adding it up: most rural Eastern CT homes need 22-24kW to cover everything at once. We do a load calc as part of every quote.

Natural gas vs propane

If your home has natural gas service (Eversource gas in parts of Hartford County, Yankee Gas in others), use natural gas — unlimited runtime, no tank-fill schedule, lowest fuel cost. If you're on propane (most rural Eastern CT — Tolland, Stafford, Willington, Ashford, Hebron), the generator runs on the same propane tank that feeds your hot water or HVAC. Sizing the tank or installing a second tank matters — a 24kW generator under full load burns ~3 gallons of propane per hour.

Permits, inspections, and Eversource coordination

Whole-house generator installs require a building permit, electrical permit, and (in most cases) a separate gas permit through your town. The propane or gas company also coordinates the fuel-side connection. We pull all permits, schedule both the electrical and gas inspectors, and handle the Eversource interconnection paperwork. Typical end-to-end timeline from contract to operational generator: 4-8 weeks, mostly waiting on equipment delivery.

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Generac vs Kohler — which one?

Both are excellent. We're authorized for both and install both monthly. Quick comparison:

Generac

Market leader, larger parts/service network nationwide. Slightly lower price point. Mobile Link cellular monitoring standard on most models. 5-year limited warranty.

→ Generac installation details

Kohler

Quieter operation (a few dB lower at full load), premium build quality. Marginally higher price point. 5-year limited warranty, 10-year extended option.

→ Kohler installation details

Whole-House Generator Installs

Real Eastern CT installs — generator pads, transfer switches, gas line work.

Whole-house generator install Eastern CT

Whole-House Install

Generator service Eastern CT

Annual Service

Outdoor generator work CT

Generator Pad Placement

Service drop generator CT

Service Work

Transfer switch panel CT

Transfer Switch Panel

Panel work generator CT

Panel + Transfer

Residential generator work CT

Residential Generator

Emergency electrical CT

Emergency Response

Post-generator lighting CT

Post-Install

Whole-House Generator FAQ

How much does a whole-house generator install cost in Eastern CT?+

Most Eastern CT whole-house installs run $12,000-$18,000 fully installed for a 22-24kW Generac or Kohler unit. The variation depends on gas line length, whether the existing panel needs an upgrade to support the transfer switch, generator pad placement, and propane tank work. We quote the all-in installed price up front — no surprise add-ons.

How long is the installation?+

On-site installation is typically 1-2 days. The longer wait is equipment lead time: most Generac and Kohler units in the 22-24kW range have 2-4 weeks lead time from order to delivery, longer in active storm seasons. Total timeline from contract to operational generator: 4-8 weeks.

Will the generator keep my well pump running?+

Yes — that's typically a top priority on every rural Eastern CT install. We size the transfer switch to include the well pump circuit, run startup-load testing during commissioning, and label the well-pump breaker clearly so you know exactly which circuit it's on. Same applies to septic pumps in finished-basement homes.

Do I need a transfer switch? What is it?+

A transfer switch is the device that isolates your home from the utility when the generator is running and reconnects when utility power returns. It's mandatory by code — you can't backfeed generator power into the utility lines (would electrocute lineworkers fixing the outage). Automatic transfer switches (ATS) are the standard for whole-house installs. Manual transfer switches exist for smaller portable-generator setups but aren't used for whole-house standby.

How loud is a Generac or Kohler whole-house generator?+

Modern units run around 65-70 dB at 7 feet during full-load operation — roughly the same as a window air conditioner or a dishwasher. We coordinate generator pad placement around bedroom-side windows and neighbor lot lines during the walk-through. Kohler tends to run slightly quieter than equivalent Generac models, but the difference is small and not the primary reason most customers pick one brand over the other.

What kind of warranty comes with the generator?+

Generac and Kohler both offer 5-year factory limited warranties on whole-house units (some models extended to 10 years on the engine). TJF Electric backs the installation with our 10-year written workmanship guarantee. Combined: 5-year factory + 10-year installation labor.

Do I need to maintain it after install?+

Yes. Standby generators need annual maintenance: oil change, filter change, battery check, exercise cycle review, transfer switch test. Most Generac and Kohler units self-exercise weekly (you'll hear a brief startup test). We offer annual maintenance contracts; one visit per year keeps the unit ready and the warranty intact.

Generator Installs Across Eastern CT

Storm-corridor and rural well-served towns where generator demand is highest:

What Customers Say

Tyler with TJF is timely and professional, the consultation was honest and thorough and scheduling was quick and easy. He showed up on time and communicated with us the entire way ensuring we were happy with the end product. We wanted 4 outlets installed on their own designated fuses, he figured out what worked best considering we have a log cabin and gave great advice along the way. No overcharging or sales gimmicks. We look forward to calling TJF again very soon for more electrical work and will be our go to company going forward! Top notch electrician, you won't be disappointed!Read more

Response from the owner

Thank you, Maria, for the wonderful 5-star review and for highlighting Tyler’s timely, professional, and thorough service. We’re glad scheduling was easy and that he communicated throughout to ensure you were happy with the outlet installations and his advice for your log cabin. We appreciate you noting our fair pricing and no-sales-gimmick approach. We look forward to being your go-to electrical company and will pass your praise along to Tyler and the team. Thank you! Tyler

Maria Valletta

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