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TRUSTED BY WASHINGTON, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon11
    Verified generator installs reviews

Find Generator install pros in Washington

Avatar for Frank's Generator Sales Service & Repair
Frank's Generator Sales Service & Repair
5.0(
21
)

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"I recently had my generator serviced by Franks Generator Sales and Service. Frank arrived on time was very knowledgeable and a pleasure to work with. I will definitely use Frank from now on and recommend him and Angie to my friends."
Generator emergency service call
Generator Project
Generator Service
Generator emergency service call
Generator Project

+29

Response time2 days
17 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Connoles Electric, LLC
Connoles Electric, LLC
4.8(
82
)

Serving Washington, CT and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

"Ted and Robert arrived, got right t to it and within a few hours we had 2 ceiling fans installed, one which had no existing light so it was a more involved project. They were professional and stuck to their original quote! To say we are impressed is an understatement. We strongly recommend using Connole Electric."
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for OnTheGrid Electric , LLC
OnTheGrid Electric , LLC
5.0(
12
)

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Credit card accepted

"I’ve worked with OnTheGrid Electric for 12 years. I would highly recommend them. They perform quality work, they are responsive and leave the job site in good condition."
Standby generator automatic transfer switch with main panel
Landscape lighting
Fuse panels to be removed in multifamily house with external circuit switches (via insurance requirement)
Portable generator panel interlock
Lighting for a parking lot

+16

Response time1 day
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Mikell Electric
Mikell Electric
4.5(
28
)

Serving Washington, CT and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"The Electrician was efficient and professional. He did vacuum when he was finish with the installation. I was extremely happy with the result."
Response time3 days
21 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Swanson Electric, LLC
Swanson Electric, LLC
5.0(
31
)

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Fair pricing, quality work. I have a quote from him and every month or so he completes another job on the list. Light installs, outlet installs etc. Work is done quickly and efficiently"
Panel
Response time5 hrs
Response rate99%
22 neighbors recently requested a quote
Avatar for Wild Electric
Wild Electric
5.0(
10
)

Serving Washington, CT and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"We needed an EV charger for our new hybrid. Jesse was prompt, professional and experienced. We also needed a few outlets replaced, he had everything on his van and took very good care of us. We can definitely recommend!"
Kohler 20kw
20kw
20kw
20kw
NEMA 4 ATS

+24

Response time10 hrs
Recommended by87%of homeowners
Avatar for MB Electric
MB Electric
4.9(
8
)

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"MB Industries, LLC did a masterful job on my project. The owner, Matt, was on-time, personable, polite, professional, and skilled. He was meticulous in getting the job done right?not just ?good enough.? I will reach out to MB Industries LLC in the future. Thanks again Matt. 5 stars for sure!"
MB Industries
MB Industries
MB Industries
MB Industries
MB Industries

+46

Response time8 hrs
1 neighbors recently requested a quote
Avatar for Firemans Services LLC
Firemans Services LLC
5.0(
4
)

Serving Washington, CT and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Firemans Services LLC is a trusted, locally owned electrical contracting company dedicated to delivering safe, reliable, and high-quality electrical solutions. We specialize in residential and light commercial work, including service upgrades, panel replacements, generator installations, and custom electrical projects.\n\nWith a strong commitment to craftsmanship and customer satisfaction, our team takes pride in doing the job right the first time—on schedule and within budget. Whether you need a full service upgrade, backup power solutions, or everyday electrical repairs, Firemans Services LLC is your dependable choice for professional service you can count on.

Meter
Tesla Charger
Avatar for Moura Electric LLC
Moura Electric LLC
5.0(
5
)

Serving Washington, CT and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"More Electric has been working for me for quite a few years right now doing multiple different kind of jobs residential and commercial wiring new homes as well as rewiring remodel troubleshooting short circuits and changing out electrical panels as well as wiring outdoor whole house generators his work is very neat and impeccable he is a great person to work with great personality and cares about the work that he does gama developers inc."
Response time40 mins
Response rate94%
1 neighbors recently requested a quote
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Generator Install questions, answered by experts

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

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. 

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

The Washington, CT homeowners’ guide to generator installs

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