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Avatar for Steven Moro Electrician
Steven Moro Electrician
4.8(
46
)
Fixed Generator - InstallPortable Generator - InstallPortable Generator - Repair

Serving Otis, MA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Stephen Moro is a conscientious, knowledgeable, likeable electrician, with integrity. He initiates communication and gets back quickly â which is important to me (and which other contractors could do much better at). He had 3 days of work to do in the house we recently purchased, and did that work in a complete and professional manner from set up to clean up. He had better ideas about where to install the outlets we needed, and let us know what work could not be done (within our budget) given the age of the house (110 years), and location or condition of existing wiring. His price for the 3 days of work plus supplies was fair and reasonable. Absolutely outstanding person and electrician!  Maria & JJ, Pittsfield MA"
Response time1 day
11 neighbors recently requested a quote
Recommended by84%of homeowners
Slingerland Electrical Services
4.9(
42
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Otis, MA and surrounding areas

Approved

In business since 2011

Free estimates

Offers commercial services

"I hired Mike for a back-up generator installation. Very quick response, very good communication: he explained everything thoroughly, and invited questions. Mike is very professional, while still being personable and pleasant to deal with. I would call him again for future work."
1 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Otis, 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

19 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Andrus Power Solutions
Andrus Power Solutions
New to Angi
Fixed Generator - InstallGenerator - Install - For Business

Serving Otis, MA and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

At Andrus Power Solutions, we provide expert sales, installation, and service of Generac home standby generators across Massachusetts and parts of New York and Connecticut. As a fully licensed and insured, family-owned business, we pride ourselves on delivering reliable power solutions with exceptional customer care. Whether you're looking for whole-home backup, annual maintenance, or emergency support, our team is here to help ? and now offering 0% financing for 25 months. Power on, worries off.

Generator Repair
Response time6 days
6 neighbors recently requested a quote
Showing 1-10 of 33
Generator Install questions, answered by experts

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.

Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.

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.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The Otis, MA homeowners’ guide to generator installs

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