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TRUSTED BY LEXINGTON, MA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon12
    Verified generator installs reviews

Find Generator install pros in Lexington

Harland Electric Inc
4.9(
137
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lexington, MA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Bill walked me through checking the outlet and circuits. We solved the problem with no service call needed. Harland has been my electrician since the early 2000's. They have completed many projects/repairs small and large (full panel replacement after water damage to installing a exterior spotlight). Staff answering calls is pleasant and professional, Bill gets back to customers usually the same day."
Response time2 days
1 neighbors recently requested a quote
Recommended by96%of homeowners
Dever Electric
5.0(
59
)
Fixed Generator - InstallPortable Generator - Install

Serving Lexington, MA and surrounding areas

Approved

In business since 2008

Free estimates

Offers commercial services

"Matt was very creative and thoughtful about the best way to install an electrical vehicle charger when he needed to work through some obstacles in an older house. I anticipate using him for other projects around our house and am happy to recommend him for the installation of Level 2 home charging."
Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for VMA Electric Inc
VMA Electric Inc
4.8(
468
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Lexington, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"From the office folks to the electrician who did the work -- friendly and professional. They quoted the lowest price of three estimates and did the work within a couple of weeks. I purchased my generator elsewhere online... and VMA walked me thru the process of hooking it up, running it, and shutting it down. Very helpful."
Needham Project
22kw Generac
27kw
Response time8 hrs
Response rate100%
17 neighbors recently requested a quote
Avatar for Jose Baez
Jose Baez
5.0(
26
)
Fixed Generator - Install

Serving Lexington, MA and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Warranties offered

"Jose was great to work with. He was quick to respond, came by on short notice to have a look and provide a quote for the work (Installation of one new smart thermostat and replace one old thermostat with new thermostat; requiring separation of baseboards due to wattage). Very competitive pricing, showed up on time at each appointment and got the work done quickly. He left the place cleaner than before, and walked me through everything after the installation. Can highly recommend Jose for any electrical work!"
kitchen lights
pool house lights
pool house
service upgrade
Response time7 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for Amaury Castillo Electric
Amaury Castillo Electric
4.9(
186
)
Portable Generator - Install

Serving Lexington, MA and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Great work! Troubleshoot and fix a wiring issue with my generator transfer switch. Courteous and explained exactly what he was doing. Thoroughly checked his work. Will have him back for any future jobs."
Generator
Generator
Generator
Hallway
Hallway before the recessed lights

+6

Response time10 hrs
2 neighbors recently requested a quote
Recommended by99%of homeowners
Avatar for O’LYNNE ELECTRIC LLC
O’LYNNE ELECTRIC LLC
4.5(
54
)
Fixed Generator - Install

Serving Lexington, MA and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

OLYNNE ELECTRIC is a family-owned electrical and electrification contractor based in Methuen, serving Massachusetts and New Hampshire. Led by a master electrician licensed in both states, we help homeowners and businesses with electrical repairs, panel and service upgrades, EV chargers, standby generators, ducted and ductless heat pumps, solar panels and battery storage. We also handle lighting, additions, remodels and new construction. Whether you need a repair or are planning a larger upgrade, we focus on clear communication, thoughtful solutions and quality workmanship. Regular hours are Monday-Friday, 7 a.m.-5 p.m.; weekends are for emergency service. Contact us to discuss your project.

Additional Photos
Additional Photos
6 neighbors recently requested a quote
Recommended by82%of homeowners
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Generator Install questions, answered by experts

Whole-house generators need to be installed on level ground several feet away from walls and other objects. Because they tap into the electrical system directly, they usually need to be close to your home electrical panel for a transfer switch installation. It also helps with installation if they are near to a gas line or propane tank installation.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

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.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

The Lexington, MA homeowners’ guide to generator installs

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