Get matched with top generator installers in your area
There are 20 highly-rated local generator installers.
Generator installers in North-waltham
Jesse America Electrician is locally owned and operated providing all types of general electrical services. We are a true One-Stop Electrical service! We are reliable, easy to work with and dedicated to our customers. Give us a call or click for an estimate today!
"Fabulous! Jesse is the best!"
Monica k on January 2025
Jesse America Electrician is locally owned and operated providing all types of general electrical services. We are a true One-Stop Electrical service! We are reliable, easy to work with and dedicated to our customers. Give us a call or click for an estimate today!
"Fabulous! Jesse is the best!"
Monica k on January 2025
Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.
"The electrician, Mr. Jason Thompson, did an excellent job."
Armen S on April 2025
Experiencing issues with your heating, air conditioning, plumbing, or electrical systems? Cotti-Johnson is your reliable one-stop shop for all home comfort needs. From simple fixes to large-scale projects, our professional team handles everything with honesty and expertise. We offer 24/7 emergency services and specialized design services for landscape and indoor lighting. Trust us for top-notch, efficient, and transparent service. Visit our website at callcotti.com or call us at (833) 826-8844 to see how we can improve your home's comfort and efficiency.
"The electrician, Mr. Jason Thompson, did an excellent job."
Armen S on April 2025
When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.
"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."
stephen m on August 2024
When it comes to great service for your home or business, it doesn't get better than the professionalism and dedication of Rodenhiser. It's an unsurpassed level of service built on a promise that ensures you get the very best - when you call Rodenhiser your satisfaction is guaranteed. With 90+ years of delighted residential and commercial clients, you can be sure that it's a promise that Rodenhiser delivers on every day.
"The work was done correctly and promptly, but quite expensive. On the plus side, he presented all the options and didn't really try to upsell. Just the facts."
stephen m on August 2024
At WIRED Electrical Contractors, we’re pursuing excellence: from your initial consultation to our superior warranties and follow-through. Owned and operated by master electrician Paul Crowley, our team of trained and certified master electricians provide MetroWest MA homeowners with quality craftsmanship, upfront pricing, and attentive responsiveness throughout every project phase. Our focus on quality has earned us the Angi Super Service Award for ten years running. We are a full service residential electrical contractor. We specialize in home EV charging installations and are Tesla trained and certified. We are also certified installers with Qmerit, Chargepoint, and ClipperCreek.
"Same day service! Electrician was very friendly and knowledgeable. Would recommend."
Sydney S on July 2024
At WIRED Electrical Contractors, we’re pursuing excellence: from your initial consultation to our superior warranties and follow-through. Owned and operated by master electrician Paul Crowley, our team of trained and certified master electricians provide MetroWest MA homeowners with quality craftsmanship, upfront pricing, and attentive responsiveness throughout every project phase. Our focus on quality has earned us the Angi Super Service Award for ten years running. We are a full service residential electrical contractor. We specialize in home EV charging installations and are Tesla trained and certified. We are also certified installers with Qmerit, Chargepoint, and ClipperCreek.
"Same day service! Electrician was very friendly and knowledgeable. Would recommend."
Sydney S on July 2024
Medium size Electrical Company based out of Metrowest Area. Currently have 9 licensed employees. Always free estimates. All pricing is based on specific work.
"Solid work. Problem solved."
Thabiti B on April 2025
Medium size Electrical Company based out of Metrowest Area. Currently have 9 licensed employees. Always free estimates. All pricing is based on specific work.
"Solid work. Problem solved."
Thabiti B on April 2025
Markarian Electric are experienced, dependable professional electricians constantly staying on the cutting edge of newly released technology. With over 20 years of Residential, Commercial & Industrial electrical experience, Markarian Electric has performed thousands of jobs for many businesses and homeowners. Whether we are wiring a restaurant, office building, retail store, BMS management or simply installing a replacement dimmer for a homeowner, we take pride in every job we do. Eric A. Markarian, CEO Customers can email us at me@markarianelectric.com.
"My properties use Markarian for a lot of our electrical needs. They are always very responsive and fast to resolve our issues. In Brighton today Juan Montoya came by to resolve a few issues for us. He was very professional and friendly!"
Jason L on March 2025
Markarian Electric are experienced, dependable professional electricians constantly staying on the cutting edge of newly released technology. With over 20 years of Residential, Commercial & Industrial electrical experience, Markarian Electric has performed thousands of jobs for many businesses and homeowners. Whether we are wiring a restaurant, office building, retail store, BMS management or simply installing a replacement dimmer for a homeowner, we take pride in every job we do. Eric A. Markarian, CEO Customers can email us at me@markarianelectric.com.
"My properties use Markarian for a lot of our electrical needs. They are always very responsive and fast to resolve our issues. In Brighton today Juan Montoya came by to resolve a few issues for us. He was very professional and friendly!"
Jason L on March 2025
Village Home Services formally known as Village Electric and Village HVAC. We stand at the intersection of expertise and community spirit. With our plumbing, electrical, and HVAC services, we go beyond fixing problems; we enrich lives, one home at a time. In our village, your comfort and safety are our top priorities.
"It went great! They were very responsive and the people who work there are very helpful and pleasant. I would highly recommend them to others."
Brenda R on November 2019
Village Home Services formally known as Village Electric and Village HVAC. We stand at the intersection of expertise and community spirit. With our plumbing, electrical, and HVAC services, we go beyond fixing problems; we enrich lives, one home at a time. In our village, your comfort and safety are our top priorities.
"It went great! They were very responsive and the people who work there are very helpful and pleasant. I would highly recommend them to others."
Brenda R on November 2019
For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England
"I reached out to couple of companies and ultimately decided to go with NETR, and I’m glad I did. From the salesman Chip, to the installer Daniel Rodriguez, their professionalism was exceptional. Their work ethic and attention to detail sets them apart from other companies in this business. Daniel is an expert and went above and beyond to make sure everything was tidy and perfect! They’re really invested in customer satisfaction!"
Navya P on March 2024
For emergency services, please call 781-933-6387. N.E.T.R., Inc. is here to help homeowners install the best heating and cooling systems that fits their needs. Since 1989, we’ve installed heating and cooling systems in Boston and its surrounding areas, tackling tough problems that our clients face. Our goal is to ensure our clients have energy efficient, quiet, reliable systems so they can live their lives to the fullest both at home and at work. Our dedication to our customers’ needs is what drives us each and every day. Our approach to temperature control and comfort has helped us become one of the most respected names in heating, cooling, and refrigeration in New England
"I reached out to couple of companies and ultimately decided to go with NETR, and I’m glad I did. From the salesman Chip, to the installer Daniel Rodriguez, their professionalism was exceptional. Their work ethic and attention to detail sets them apart from other companies in this business. Daniel is an expert and went above and beyond to make sure everything was tidy and perfect! They’re really invested in customer satisfaction!"
Navya P on March 2024
Residential and commercial electrical contractor.
"Illiya was efficient, diligent, friendly, and highly professional. He and his staff got the job done well and in a few hours. And his rate was very competitive. Strongly recommend."
Douglas M on October 2024
Residential and commercial electrical contractor.
"Illiya was efficient, diligent, friendly, and highly professional. He and his staff got the job done well and in a few hours. And his rate was very competitive. Strongly recommend."
Douglas M on October 2024
Family owned and operated since 1987, Wilson Brothers HVAC, Inc. has been a leader in the installation and repair of complete, custom-designed, heating and cooling systems for homeowners in Massachusetts and New Hampshire. Hot air, radiant, and hydro-air heating systems fired by either gas or oil, along with complete central air or ductless cooling systems. Trust your home comfort to Wilson Brothers, Your All-Season Comfort Specialists. We also service additional areas through our sister companies, Accurate Baker Elman and Murphy's.
"I install central ac, one ductless AC and replace furnace last year by Wilson brother. I contacted 4/5 contractors for this work. Wilson brother provide best customer service. they replied to my question very quickly, while other could response a few days later. the installation was also very professional and effectively. after installation, they also provides all information showing me how to apply for MASS SAVE. it was very helpful"
Jason L on September 2019
Family owned and operated since 1987, Wilson Brothers HVAC, Inc. has been a leader in the installation and repair of complete, custom-designed, heating and cooling systems for homeowners in Massachusetts and New Hampshire. Hot air, radiant, and hydro-air heating systems fired by either gas or oil, along with complete central air or ductless cooling systems. Trust your home comfort to Wilson Brothers, Your All-Season Comfort Specialists. We also service additional areas through our sister companies, Accurate Baker Elman and Murphy's.
"I install central ac, one ductless AC and replace furnace last year by Wilson brother. I contacted 4/5 contractors for this work. Wilson brother provide best customer service. they replied to my question very quickly, while other could response a few days later. the installation was also very professional and effectively. after installation, they also provides all information showing me how to apply for MASS SAVE. it was very helpful"
Jason L on September 2019
Generator installations FAQs
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 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.
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
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