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Avatar for Let It Glow Electric, LLC
Let It Glow Electric, LLC
4.6(
32
)
Portable Generator - Install

Serving Athol, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Justin did great job, intalled the hookup and the transfer switch for the portable generator. Worked in freezing temperature outside. The only downside was that the install was postponed few times because he was waiting for the parts"
Exterior
Kitchen
Main service
Transfer switch and main panel
Canopy recessed cans retrofit

+27

Response time1 day
5 neighbors recently requested a quote
Recommended by76%of homeowners
Avatar for Weathervane Home Energy, LLC
Weathervane Home Energy, LLC
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Athol, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"The install crews from weathervane were mostly well informed and efficient. The mini/split system seems to be working well. My only---heads-up with not just this company, but just about everyone now a days is that I do not text. (Dexterity issue) So I was not always "in the loop"."
Heat Pump Condensers
Ductless Mini Split
Response time2 days
21 neighbors recently requested a quote
Avatar for Spartan Electric, Inc.
Spartan Electric, Inc.
5.0(
11
)
Generator - Install - For BusinessPortable Generator - Install

Serving Athol, MA and surrounding areas

Approved

In business since 2020

Emergency services offered

Warranties offered

"Justin was awesome. Very proactive about calling me back and he was able to squeeze me in right away. He was also very flexible about the job. There were a couple things I had asked him specifically to do and then I asked for an additional outlet to be installed...he did it no problem. Great Experience!"
Remodel
Remodel
Remodel
Remodel
Remodel

+10

Response time30 mins
Response rate91%
Recommended by81%of homeowners
Avatar for Advanced Energy Concepts of Worcester, Inc.
Advanced Energy Concepts of Worcester, Inc.
3.9(
138
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Athol, MA and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I called them for a basic service the day after Snomagedon2015 fully expecting not to get anyone out for at least a few days. Someone was at my door within 3hrs! Answers all my silly questions, provided helpful information and advice and cleaned up when he was done. Will definitely be calling them back for future service and installation when the time comes!"
33 neighbors recently requested a quote
Recommended by48%of homeowners
Avatar for Nathan Ufema
Nathan Ufema
5.0(
2
)
Fixed Generator - InstallPortable Generator - Install

Serving Athol, MA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

At Ufema Electric, we prioritize safety in every job, ensuring a secure and reliable experience for our clients. We take immense pride in our work, always delivering top-notch results with attention to detail. Our team is friendly, approachable, and dedicated to providing excellent customer service, making every project a smooth and positive experience. Trust Ufema Electric for high-quality, safe, and professional electrical services.

New panel install
New panel install
New panel install
Garage smoke detectors
Recessed lighting install

+4

42 neighbors recently requested a quote
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Generator Install questions, answered by experts

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.

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.

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.

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 Athol, MA homeowners’ guide to generator installs

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