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BN Electric & Comms
4.7(
57
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Mars, PA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I am truly impressed with the quality and professionalism of BN Electric! I received immediate phone and email responses to my initial Service Magic request...and an appointment was conveniently set up for the next day (a Saturday!). All work was not only fully explained and completed cleanly and efficiently, but with true pride in a job done right! Butch and Chris were very friendly and stuck to the original quote even though the job required a bit of extra unexpected work. I will definitely be using their services in the future and will recommend them to anyone in need of electrical services! Thank you, Butch!"
Recommended by100%of homeowners
Avatar for Luminous Electric LLC
Luminous Electric LLC
4.4(
615
)
Portable Generator - Install

Serving Mars, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Hired to install a generator transfer switch. They were quick to respond to my request, on time come install day, and finished to my expectations. Highly recommended."
Fan
Fan
Pendants
Transfer switch
Chandelier

+13

Response time10 hrs
508 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for The Electrical Company LLC
The Electrical Company LLC
4.3(
23
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Mars, PA and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Very personable, listened to what I was able to relay about my project, gave me realistic options and recommended one solution and stated the reasons why - worked to replace my panel until it was complete and added a generator connection that I had been wanting. Top notch work and service - will hire again for future projects!"
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+8

15 neighbors recently requested a quote
Recommended by63%of homeowners
Calfo Home Services
4.3(
234
)
Fixed Generator - Install

Serving Mars, PA and surrounding areas

Approved (Corporate)

In business since 2008

Emergency services offered

Warranties offered

The problem with most "pros"? Too many bad habits.\nIt's easy to get swept away in the day to day monotony, even for those that call themselves "pros". When it comes to hiring a heating and cooling technician, nobody wants to deal with being treated like a sale rather than a person, the use of scare tactics instead of education, or someone who just wants to get to job done quickly instead of correctly. \nAll our HVAC pros go through 5 years of HVAC schooling, for a total of 10,000 hours of on-the-job training. And it's not just technical training either; it's training that focuses on you, on making you feel comfortable every step of the way. We will roll out the red carpet for you, both figuratively and literally.\nRed Carpet Treatment\nDuring every visit to a home, we lay out an actual red carpet to prevent any additional mess. But what may be even more important than just protecting your home is making sure you feel like you've received the best in customer service.

Recommended by84%of homeowners
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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.

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

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.

Energy output depends on turbine size, average wind speed at your site, and system efficiency. A 5 kW turbine in a good wind location can generate 8,000 to 12,000 kilowatt-hours per year, which may cover a large portion of an average home’s needs. Accurate output estimates require a professional wind assessment and a review of your household’s energy usage patterns.

The Mars, PA homeowners’ guide to generator installs

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