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Verified Reviews for Generator Install pros in Vineyard Haven, MA

*The Angi rating for Generator Install companies in Vineyard Haven, MA 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 Vineyard Haven, MA 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 September 29, 2025

Find Generator install pros in Vineyard Haven

Avatar for Services & More LLC
Services & More LLC
4.7(
27
)
Portable Generator - Repair

Serving Vineyard Haven, MA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Adam called me immediately and met me that same day. I hired the company and they cut my grass that same day. They used a ride on mower and my land is uneven so some areas were shorter than others. Two days later they spread 10 yards of hemlock mulch and recut some areas of my grass with push mower. They will use a push mower in the future. My yard now looks beautifully landscaped. Communication is definately key with this company. They aim to please!!"
Furniture Assembly
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel
Bathroom Remodel

+4

88 neighbors recently requested a quote
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Avatar for Northeast Power, LLC
Northeast Power, LLC
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Repair+3 more

Serving Vineyard Haven, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Justin cared about not only the quality of work he gave but was flexible with my schedule."
Northeast Power
Northeast Power
Northeast Power
Northeast Power
Northeast Power

+2

57 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for EIGHT ELECTRIC LLC
EIGHT ELECTRIC LLC
5.0(
22
)
Fixed Generator - Install

Serving Vineyard Haven, MA and surrounding areas

In business since 1996

Free estimates

Warranties offered

"Awesome team. Performed the job with the cleanliness. We are impressed with the candor."
Ashburnham Solar
Kitchen Lighting
Chatham Fishing Dock
Lynn Seaport Marina
Rocky Point Fishing Pier

+168

3 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for Welles Electric, LLC
Welles Electric, LLC
4.6(
70
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Vineyard Haven, MA and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"An outlet wasn't working.  Called and he said he'd be there that day or the next.  Arrived as promised the following day.  Pleasant, efficient and got the outlet working.  Would definitely use him again."
Shockingly Great Service
Additional Photos
Additional Photos
Additional Photos
14Kw Generator

+6

Recommended by95%of homeowners
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Avatar for Big D Energy Solutions
Big D Energy Solutions
5.0(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Vineyard Haven, MA and surrounding areas

In business since 2024

Free estimates

Emergency services offered

"They added a couple new lights in my living room and a chandelier that came out great loved the work they did and as well very professional would definitely recommend"
Electrical Project
Electrical Project
Electrical wiring upgrade
Electrical Project
Electrical Project

+74

Recommended by100%of homeowners
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Showing 1-10 of 34
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.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

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.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

The Vineyard Haven, MA homeowners’ guide to generator installs

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

See all articles