*The Angi rating for Generator Install companies in Windsor Locks, CT 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 Windsor Locks, CT 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 March 21, 2026
Serving Windsor Locks, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"Reviewed issue with smoke detectors and resolved problem. He also corrected problems with garage flood and garage door lights."
Serving Windsor Locks, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Offers commercial services
"He is extremely attentive to your needs . What he says will happen , does! He keeps all appointments and thoroughly explains what he plans to do. He is one of the most reliable, ethical , conscience businessman I have ever dealt with. I have recommended him to friends . He actually went out of his way to help Ill friends deal with their generator problems even though he had not installed it. He made arrangements for someone to fix the generator when he was not able. Highly recommended !"
Serving Windsor Locks, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2009
Free estimates
Credit card accepted
"Great job by On The Grid. Help me out with installing electrical on my new patio. Very knowledgeable, neat, and easy to work with. Would definitely hire them again for any electrical needs."
+16
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Project: Installation of flood light on deck, light switch in basement Courteous, professional, efficient Would definitely recommend"
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
"Leanard was great. I had a difficult knob and tube replacement project and he handled it without any issues. I would definitely call him again"
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 1999
Free estimates
Emergency services offered
"Rick was AWESOME. On-time and extremely helpful. I really wanted to install a bluetooth/ceiling vent in the bathroom and new technology is always a challenge with an older home. Rick made it work and I couldn't be happier to be able to listen to tunes while showering. Very neat, clean and quite. I work from home and he was extremely respectful. He also took the time to give me additional suggestions and information on other electrical projects I am looking to do."
+4
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 1990
Free estimates
Customers say: Quality work
"Dan runs a terrific company with careful and attentive electricians who do great work. I never hesitate to have them work at my properties."
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 1950
Free estimates
Credit card accepted
"Such a wonderful person. Came to fix my portable generator. Very pleasant and knowledgeable. Fixed my generator quickly and instructed me on ways to keep generator in best condition."
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Tim is the best electrician we ever had. He is professional, He has keen listening skillss, he is a phenomenal communicator and the overall best electrician you would want doing work in your home. Tim is the electrician for you. If you get anyone else, you'll be sorry. Call Tim. You won't regret it. HE IS THE BEST OF THE BEST!"
+10
Serving Windsor Locks, CT and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Ed and his team were incredibly professional, transparent, and honest throughout the entire process, from installation to handling the rebate process and permits. Their pricing is reasonable, and the quality of their work exceeded my expectations. I highly recommend West Electric for anyone's EV charger installation needs."
+12
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 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.
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.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
Installing a portable generator can power key appliances during outages. Learn about the best backup generator questions to discuss with a pro.
