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Avatar for TJB Electric LLC
TJB Electric LLC
5.0(
18
)
Fixed Generator - Install

Serving Northampton, MA and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: True professional

"Travis and his team do outstanding work! Brent, Nick and Aiden did the majority of the project. I can’t say enough about their professionalism, skills and timeliness. They are extremely hard working individuals who clearly take pride in the work they do for others. They put in a new panel and rewired our entire house built in 1902 -not an easy job- and added multiple ceiling lights, outlets and switches where none existed before. They were very clean, used drop cloths and repaired holes. There was minimal dust, so my mom could live in the house during the work- nothing like what other people described when they had similar work done by other companies. They answered questions and replaced switches quickly when we realized the original color we picked did not look right. They were respectful and timely and the entire process went quicker than we thought possible. Travis and Brent were available by phone/text if we had questions on days not working. Mom and I highly recommend hiring!"
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5 neighbors recently requested a quote
Recommended by82%of homeowners
Slingerland Electrical Services
4.9(
43
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Northampton, MA and surrounding areas

Approved

In business since 2011

Free estimates

Offers commercial services

"Very patience and considerate. Advised me on which generator to get that best fit my needs and budget, assembled it, gave me a tutorial on how to use it, and installed the proper electrical system to accommodate. Will hire again!"
2 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Frank Wdowiak- Master Electrician
Frank Wdowiak- Master Electrician
4.7(
275
)
Portable Generator - Install

Serving Northampton, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Small jobs welcome

"Frank and his team always arrived on time and were able to start the work the week I requested a quote. They answered my questions and helped me to make decisions about what needed to be done. Had numerous lights/ceiling fans installed, outlets changed, and a doorbell installed along with the utility boxes being redone among other things. I would hire them again."
3 of 12 service panels.
Response time1 day
Response rate100%
Recommended by92%of homeowners
Avatar for Paul R. Bachand Electric
Paul R. Bachand Electric
5.0(
14
)
Fixed Generator - InstallGenerator - InstallGenerator - Install - For Business+1 more

Serving Northampton, MA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"Paul was excellent to work with. I needed an exterior garage wired. He was prompt, clean and a great value. I am looking to do a service upgrade for an electric car charger and already have been in touch with Paul to preform the work. Great to have a go to electrician anytime I need work done!"
Remodel/ gut for space above garage for a raised ranch home
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+28

Response time2 days
Response rate100%
18 neighbors recently requested a quote
Avatar for Hurley & David
Hurley & David
4.5(
17
)
Fixed Generator - InstallPortable Generator - Install

Serving Northampton, MA and surrounding areas

Approved

In business since 1960

Free estimates

Credit card accepted

Hurley and David, Inc is a full-service air conditioning and heating contractor with the ability to service and install complete heating and air conditioning systems. In addition to scheduled service checks, repairing of existing equipment, and installation of new equipment, we can help you find ways to reduce your energy bills through a thorough cost-benefits analysis. We have an extensive history of repair service on all brands of central air conditioning and heating systems.\n

Recommended by75%of homeowners
Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+3 more

Serving Northampton, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"My solar inverter stopped working in my existing solar system, and since my original installer went out of business, I had a hard time finding someone to replace the inverter provided by SolarEdge. It was a small job, and most large companies weren’t interested, while those willing to help were booked out for at least a couple of months. I contacted Justin, and he replaced the inverter within just a few days. He was very friendly, efficient, and offered a very reasonable price. Justin was also extremely knowledgeable, explained everything clearly, and kept me updated throughout the process. He arrived on time, completed the work neatly, and made sure the system was running perfectly before leaving. Overall, his professionalism, honesty, and dedication to customer satisfaction made the whole experience stress-free and smooth."
Northeast Power
Northeast Power
Northeast Power
Northeast Power
Northeast Power

+2

59 neighbors recently requested a quote
Recommended by66%of homeowners
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Showing 1-10 of 52
Generator Install questions, answered by experts

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

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.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

If you’re wondering if you can use your electric vehicle as a backup battery, it depends on whether your EV is compatible with bidirectional charging. This technology allows energy to flow both ways, enabling vehicle-to-home (V2H) backup power, vehicle-to-load (V2L) for appliances and camping, and vehicle-to-grid (V2G) to support the power grid. Compatible EVs convert stored DC energy into usable AC power, helping reduce energy costs and enhance grid stability while providing emergency backup power.

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 Northampton, MA homeowners’ guide to generator installs

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