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TRUSTED BY ANDOVER, MA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon20
    Verified generator installs reviews

Find Generator install pros in Andover

Avatar for JP McCurdy Electrical Services Inc
JP McCurdy Electrical Services Inc
4.4(
526
)

Serving Andover, MA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"During the walkthrough John was easy to chat with on what we were looking for in this project. We were looking to get some ethernet drops installed so that a new hardwired ethernet and wireless network could be installed by North Shore IT ([*** Link removed ***] Once we agreed to the project, Bill and Nico were easy to work with and were very expedient. They completed the job over a day and a half and did a great job at minimizing the impact to the walls and floors. I would definitely recommend JP McCurdy electrical services to others and would use them again!"
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+9

Response time11 hrs
1 neighbors recently requested a quote
Recommended by83%of homeowners
Mike Medzhidov
4.8(
160
)

Serving Andover, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Small jobs welcome

"Great job I had lots of small repairs. Mike and his assistant were professional and reasonably priced my projects. Installed replacement fixtures, repaired outlets, and installed Blink doorbells. Great job and cleaned up too! Heâ s is busy so plan ahead!"
Lights
Remodel
Wall washing
Low voltage,  remote transformer,  island lighting
LED undercabinet lighting

+8

Response time7 hrs
2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Douglas E. LeRiche Electrician
Douglas E. LeRiche Electrician
4.5(
227
)

Serving Andover, MA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Doug installed the electrical for an emergency generator we bought. His install included an emergency light that activates when power is lost, an amp meter to indicate how much load is being put on the generator and an alarm that alerts you when the power has been restored so you can shut the generator down. All this was included at a price that was better than the other estimates I received that did not include the items mentioned above. Doug was a pleasure to work with and I would highly recommend him to anyone looking for home electrical work."
Response time10 hrs
1 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Amaury Castillo Electric
Amaury Castillo Electric
4.9(
186
)

Serving Andover, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"I am legally blind. I really appreciated how he explained everything that he was doing. He was installing a Ring doorbell and floodlight. He was great at answering my questions. I would use him again."
Generator
Generator
Generator
Hallway
Hallway before the recessed lights

+6

Response time10 hrs
Recommended by99%of homeowners
Avatar for Moses Electric Inc
Moses Electric Inc
5.0(
11
)

Serving Andover, MA and surrounding areas

Approved

In business since 2011

Emergency services offered

Customers say: True professional

"Scott was amazing ! He is professional, punctual, and precise in his work! He has done both outdoor and indoor electrical installations and we know that he is a master electrician that we can trust and count on to perform outstanding work. We are thrilled to have him as a professional that we can depend to do a marvelous job! We recommend him unconditionally!"
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+1

Response time5 hrs
14 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for NETR Inc
NETR Inc
4.7(
78
)

Serving Andover, MA and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"The technicians Gregg and Caleb did a great job. They were courtesy, knowledgeable, hard working and arrived on time. They explained every step of the process to me. I will use N.E.T.R Inc. in the future."
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
SOUTH END CONDO RECEIVES MITSUBISHI DUCTLESS SYSTEM
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+9

30 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for MillTown Plumbing, Heating, Cooling and Electrical - Electrical
MillTown Plumbing, Heating, Cooling and Electrical - Electrical
4.3(
421
)

Serving Andover, MA and surrounding areas

Approved

In business since 1979

Free estimates

Warranties offered

"They did great work on a tight schedule. We were leaving on a trip and they completely installed a new boiler in a few days to prevent our pipes from bursting while we were away. Customer service was great and the price was competitive."
Team Photos
Team Photos
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Team Photos
Team Photos

+2

Recommended by89%of homeowners
Avatar for Wilson Brothers Heating & Air Conditioning Inc
Wilson Brothers Heating & Air Conditioning Inc
4.5(
160
)

Serving Andover, MA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"It was a absolute pleasure working with the Wilson Brothers team from sales, site planning and install. The install and electrical teams were very professional and demonstrated in depth knowledge of the product and their craft. They arrived at the time specified and worked very neatly and in an organized fashion. We would absolutely recommend Wilson Brothers for any Heating/AC needs."
Three of the five heads are marked by the numbers in the blue circle. On the inside of the house is where you will find the mounted units. The slim ducts run alongside the white arrows and will eventually be covered to match the exterior of the house.
The slim ducts in the basement ceiling that connect from the branch box all the way to the 5 different heating and cooling units. These will be covered by the ceiling tiles once the job is finished.
7 neighbors recently requested a quote
Recommended by93%of homeowners
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Showing 1-10 of 155
Generator Install questions, answered by experts

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.

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

You may need a permit for a portable generator if you’ll be installing a transfer switch for your primary residence or similar work. Otherwise, a permit for other uses may not be necessary. Check your local building codes or ask a local generator installer for more information about your local regulations.

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.

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.

The Andover, MA homeowners’ guide to generator installs

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