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TRUSTED BY BROOKLINE, NH HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon15
    Verified generator installs reviews

Find Generator install pros in Brookline

Avatar for Pellerin Electric, LLC
Pellerin Electric, LLC
4.6(
84
)
Fixed Generator - InstallPortable Generator - Install

Serving Brookline, NH and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"Very accommodating and helpful with suggestions when it was noticed that the fan we purchased was defective..our installer came back in the afternoon to install the replacement fan. Check your purchases at Home Depot before you leave the store...our Hunter Fan was definitely returned by a previous customer and then put back on the shelf. The Company and installer handled the job very efficiently and professionally and we would highly recommend."
3 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Electrical & Security Solutions, LLC
Electrical & Security Solutions, LLC
5.0(
13
)
Fixed Generator - InstallFixed Generator - Repair

Serving Brookline, NH and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Tyler and his crew were amazing! Professional, on time, great communication, and the work is top notch! From first visit to get an estimate to cleaning up the job site, perfect! Thank you and highly recommend to anyone that is looking for electrical work!"
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting
Landscape lighting

+10

Response time7 hrs
Response rate100%
15 neighbors recently requested a quote
Avatar for A&A Electrical LLC
A&A Electrical LLC
5.0(
9
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Brookline, NH and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"I hired A&A to upgrade my light fixtures, add an electric car charger and fix various outlet issues. What I received was above and beyond my expectations. I highly recommend them for any electrical service you may need."
Solar installation
Solar installation
Solar installation
Solar installation
Solar installation

+18

Response time6 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Wilson Brothers Heating & Air Conditioning Inc
Wilson Brothers Heating & Air Conditioning Inc
4.5(
160
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+2 more

Serving Brookline, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Wilson brothers came out to look at the project and provide a bid. They scheduled the inspection with little delay and arrived on time. The man who came was friendly but was very critical of the duct work in my home, which had been installed in a major renovation two years prior by a different company. I'll describe that impact below. He went away promising to provide a bid in two days' time. A week later, I still hadn't heard word and contacted the company. They replied that they would not be able to provide a cost estimate as they were too busy to do the work for several months' time. They indicated that my project was more involved than most A/C installations and for that reason they were choosing not to bid during their high volume time. I was appreciative that they didn't string me along, though frustrated to have to wait a week and then get this answer. The conversation about my previous duct-work project was also worrisome. He described it as an unprofessional job and claimed that it was not up to the building code. The new ducts were flexible, insulated ducts which he stated the code did not permit beyond a run of 12 feet. (Many were much longer than this.) He also pointed out half a dozen places where he believed the ducts had been kinked due to a tight bend. This information obviously led to quite a bit of concern on my part, as well as surprise due to the good heating performance after the previous renovation. I both called the previous contractor and researched the building code on my own. I learned that the Wilson Bros. estimator was incorrect about the building code: flexible *connectors* are limited to 12 feet in length; flexible *ducts* such as what I had are not length-limited. Additionally, all but one of the ducts he had claimed were kinked were not -- the insulation was pinched, but the duct itself was not deformed. The previous contractor noted one kinked duct that they replaced. My suspicion is that the technician does not work with flexible ducts and this led to the competing information. I appreciated the information and it did lead to the repair of one kinked duct. I also appreciated the honesty regarding their ability to do the work in a timely manner, though I would have liked better communication on the topic rather than my having to chase them down."
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.
4 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for The Speedy Sparky LLC
The Speedy Sparky LLC
5.0(
8
)
Fixed Generator - Install

Serving Brookline, NH and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

With over 10 years of experience, we pride our company on our quality of work. We are owner operated, and believe in building long-term relationships with our clients by delivering tasks that are accomplished in a neat and workman like manner. Give us a call today. We look forward to working with you!

Camper outlet & breakers
Camper outlet & breakers
Response time11 hrs
Response rate90%
1 neighbors recently requested a quote
Avatar for IDEAL ELECTRICAL SERVICES LLC
IDEAL ELECTRICAL SERVICES LLC
5.0(
11
)
Portable Generator - Install

Serving Brookline, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"The work was done unbelievably I have a old trailer/camp The fuse box was terrible the breaker box for the hot water heater was from I don't know 50 years ago and he came in and fixed everything wonderfully I would recommend him to anybody he was fantastic"
Service upgrade
Ev charger
Adu new construction
Adu new construction
Lighting upgrades

+8

Avatar for Evan Jones- Master Electrician, LLC
Evan Jones- Master Electrician, LLC
4.0(
22
)
Portable Generator - Install

Serving Brookline, NH and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"Excellent customer service from start to finish. Electrician Eric and technician Johnathan were very professional and did an outstanding job. Nice to see young men practicing their trade so well. Highly recommend them without any reservations. Satisfied customer."
Response time3 days
Recommended by88%of homeowners
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Showing 1-10 of 87
Generator Install questions, answered by experts

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

While the rating will tell you how many watts the refrigerator needs at the peak of its cycle, it requires additional wattage to start. At the bare minimum, you’ll need a 1,500-watt generator to get the fridge up and running after a blackout. A 2,000-watt generator should be sufficient for most home refrigerators.

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.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

The Brookline, NH homeowners’ guide to generator installs

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