*The Angi rating for Generator Install companies in Denmark, ME 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 Denmark, ME 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 October 19, 2025
Serving Denmark, ME and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
"Diagnosed the problem and repaired my generator so it starts and runs well. I will be using them from now on for all of my generator service in the future. They are a first class company."
Serving Denmark, ME and surrounding areas
Approved
In business since 1995
Warranties offered
Credit card accepted
"We had our service updated to 200amps, the quote was very reasonable and all the work was done in a professional and timely manner. We are very happy with the installation, very neat and clean. Would definitely use them again, and recommend Bolduc Electric to anyone needing a quality electrician."
Serving Denmark, ME and surrounding areas
Approved
In business since 1991
Free estimates
Emergency services offered
"This was to install a standby generator. The advance planning was excellent as was the quality of the work. Customer service is outstanding. Price was high, however. LaPlante was the highest of 3 bids received. Nevertheless, I selected them because of their professionalism and customer service."
+8
Serving Denmark, ME and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
We are proud to be a Veteran-operated, Titanium Level Kohler® licensed and insured generator dealer. We teamed with Kohler® to give you peace of mind that you are working with a dealer-trained, factory-authorized provider to handle these appliances. We offer all Kohler® and Generac warranties and maintenance services. These are the industry’s best products for backup protection at your home or office.\nWe are also proud to work with Efficiency Maine, offering discounts, rebates, loans, and other initiatives to promote high-efficiency equipment that help Maine’s homes and businesses reduce their energy costs and lower their greenhouse gas emissions.\nProfessionally installing a standby generator and/or heat pump for your home or business is one of the best investments you can make. .\nWe at Casco Bay Generators & Heat Pumps keep the power on 24 hours a day, 365 days a year.
Serving Denmark, ME and surrounding areas
Approved
Super Service Award Winner
In business since 2022
Free estimates
Warranties offered
"I hired this company to do electrical run from my house to my shed. I was so impressed with their work and then reasonable price for the work they did. I had another problem with electric in my kitchen. I called them to come and fix it which they did in a short amount of time for a reasonable price. I would call them anytime."
Serving Denmark, ME and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"Solar system has been operational for almost a year, no problems at all. Production is aligning well with the projections upon which we made the purchase decision."
+55
Serving Denmark, ME and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"William Burden is the third generation owner of WBLightningRods and his company has been in business since 1950. He is very courteous, professional, was on time, and has a very good crew. William was present for the entire installation. We chose the copper system. We are glad for the peace of mind a lightning rod system will provide."
+79
Serving Denmark, ME and surrounding areas
Approved
In business since 2015
Free estimates
Small jobs welcome
"Installed a ceiling fan on a 14 foot vaulted ceiling. Very personable and professional. Fan looks great. Will absolutely use them again. Well worth the cost, which was reasonable."
Serving Denmark, ME and surrounding areas
Approved
In business since 2000
Free estimates
Emergency services offered
"Got some outlets and a light fixed in our spare bedroom. Guys were super nice and they did quality work!"
Serving Denmark, ME and surrounding areas
Approved
Emergency services offered
Warranties offered
Small jobs welcome
I am pretty much a jack of all trades. I mostly do minor electrical work installing light fixtures, ceiling fans, replacing switches and outlets. Home theaters, whole house audio systems.
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 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.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
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.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
Learn how to find and hire a qualified generator repair pro. Get expert tips on vetting credentials, asking the right questions, and choosing the best technician.
