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Find Generator install pros in Darien

Avatar for Frank's Generator Sales Service & Repair
Frank's Generator Sales Service & Repair
5.0(
22
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+4 more

Serving Darien, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"10 yr old Generac GP6500E wouldn’t start. Called around and many want to upsell to permanent. Found Franks and what a delight. Honest, down to earth, affordable for senior. Showed up on time. Changed oil, spark plug. Pulled carburetor and found it dirty and fouled. Got used one from his shop(same day) and installed. Gen started right up on one or two pulls. Battery was dead but showed us how to replace. Highly recommend Frank’s Generator."
Generator emergency service call
Generator Project
Generator Service
Generator emergency service call
Generator Project

+29

Response time2 days
Response rate98%
19 neighbors recently requested a quote
Avatar for Kenney Electrical Services, LLC
Kenney Electrical Services, LLC
4.8(
62
)
Portable Generator - Install

Serving Darien, CT and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Jason was simply amazing !!! He was always prompt with our appt time. Clean (my OCD loves him and I told him so LOL) we liked his initial installation so much, we had him install new switches in our kitchen AND another celling fan in our bedroom! If we ever have any other electrical work that we'll need, we are DEFINITELY calling him back!!! oh and our dog loves him too :-)"
5 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Mikell Electric
Mikell Electric
4.5(
29
)
Fixed Generator - InstallPortable Generator - InstallGenerator - Install - For Business

Serving Darien, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"I am very pleased with the excellent quality of the work by Mikell Electric. Spencer installed a new fuse box, outside fixtures plus wiring. He was courteous, respectful and prompt. He took the time to explain the process, timeframe and answered all of my questions. I have already had him back again for another electrical project."
Response time3 days
71 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Blue Wave Electric, LLC
Blue Wave Electric, LLC
5.0(
13
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Darien, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Credit card accepted

"This company is top notch! They came out quickly installed a number of fixtures that were difficult, and repairs two outlets which were complex. They worked fast, explained everything in detail, were kind, polite and efficient. I will never go to another election! These guys are real pros!"
Response time9 hrs
Response rate95%
7 neighbors recently requested a quote
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Generator Install questions, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Darien, CT homeowners’ guide to generator installs

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