*The Angi rating for Generator Install companies in Lawrence, 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 Lawrence, 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 July 03, 2025
Serving Lawrence, MA and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"Outlet install, dimmers, light fixture install"
+23
Serving Lawrence, MA and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"I should have asked the cost before having the work done as I was surprised that it was $400. to have them installed which was double the cost of the actual fans. Otherwise everything else was perfect."
+9
Serving Lawrence, MA and surrounding areas
Approved
In business since 1993
Free estimates
Emergency services offered
"We hired PW DiMasi to install receded lighting in an upstairs office and could not be happier with the results. Peter, the owner, was prompt in scheduling a time to provide a project estimate and quoted us a fair price. He also showed up on the day of the project to introduce the two electricians that would be doing the work. The team was courteous, professional, and did a great job installing the lights. They also were careful to cover the room with tarps to minimize dust and cleaned up the workspace afterwards. If we have a future need for an electrician, PW DiMasi will be our first call."
Serving Lawrence, MA and surrounding areas
Approved
In business since 2005
Free estimates
Credit card accepted
"Installed two ceiling fans and two new outlets. Did a very good job. Will definitely hire Eric again."
+3
Serving Lawrence, MA and surrounding areas
Approved
In business since 2006
Free estimates
Customers say: Super punctual
"electrical outlet replacement; installation of electrical fixture; installation of Nest doorbell; repair of faulty circuit breaker"
+7
Serving Lawrence, 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."
+9
Serving Lawrence, MA and surrounding areas
Approved
In business since 1979
Free estimates
Warranties offered
"They installed our malfunctioned water heater the same day. Jonathan and Raul did everything very professionally. We highly recommend them and will be using them for our next projects."
+2
Serving Lawrence, 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."
Serving Lawrence, MA and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Carmen and his staff have performed every electrical job in my home: Everything from upgrading my service to converting to a 2-family. Heâ s installed lighting, upgraded outlets and fixed numerous issues in my old home. Professional. Punctual. Affordable. Highly recommend for any electrical needs."
Serving Lawrence, MA and surrounding areas
Approved
In business since 2018
Customers say: True professional
"Chris did a fantastic job installing recessed lights in our living room and swapping out some light fixtures. He was very responsive, professional and great to work with. Highly recommend working with Chris!"
+130
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a whole-house generator in Boston, MA varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Whole house generators can power homes when electric problems hit, but they aren’t for everyone. Here’s what you should know when you’re thinking about buying.
Natural gas generators can tap into existing gas lines so they never run out of fuel. Here’s how they work and how they’re used.
Whole house generators are a power alternative that can deal with frequent blackouts and other problems. Here’s how they function.
