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Verified Reviews for Generator Install pros in Castine, ME

*The Angi rating for Generator Install companies in Castine, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Castine, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on August 24, 2026

Find Generator install pros in Castine

Avatar for Baker Electric and Sons
Baker Electric and Sons
4.1(
17
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Castine, ME and surrounding areas

Approved

In business since 2015

Emergency services offered

Credit card accepted

"Steve and his crew are on time and professional. Always ready and willing to help."
Response time2 days
Response rate91%
77 neighbors recently requested a quote
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Avatar for Advanced Generator Solutions
Advanced Generator Solutions
5.0(
3
)
Fixed Generator - InstallFixed Generator - Repair

Serving Castine, ME and surrounding areas

In business since 2024

Free estimates

Offers commercial services

"Tech was on time, polite, professional, and did a great job. Iâ d highly recommend Advanced Generator Services."
Response time3 days
Recommended by100%of homeowners
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Avatar for Stanley Electric
Stanley Electric
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Castine, ME and surrounding areas

In business since 1975

Free estimates

Emergency services offered

"Very prompt and responsive, did good work with a competitive quote"
Response time7 hrs
Response rate100%
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Avatar for 2 Rivers Electric
2 Rivers Electric
4.8(
5
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Castine, ME and surrounding areas

In business since 2025

Free estimates

Emergency services offered

We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

Logo
Response time4 hrs
Response rate100%
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Avatar for Kaps Electrical
Kaps Electrical
5.0(
1
)
Fixed Generator - InstallFixed Generator - Repair

Serving Castine, ME and surrounding areas

In business since 2020

Free estimates

Credit card accepted

At kaps electrical we pride ourselves on being the best electrical company in the area.\n\nWe've built an excellent reputation for customer satisfaction by providing quick estimates, a great attention to detail, and competitive pricing.\n\nBeing a screened and approved professional gives you the peace of mind you need to allow us to give your home the attention it deserves. Call us today and let's get started!

Response time2 days
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Corson Electric
5.0(
1
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Repair

Serving Castine, ME and surrounding areas

In business since 2000

Free estimates

Offers commercial services

Corson Electric, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Kitchen lighting
Response time3 hrs
Recommended by100%of homeowners
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Showing 1-10 of 13
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.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

The Castine, ME homeowners’ guide to generator installs

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

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