Get matched with top generator installers in Niwot, CO
There are 4 highly-rated local generator installers.
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Verified Reviews for Generator Installation pros in Niwot, CO
*The Angi rating for Generator Installation companies in Niwot, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
*The HomeAdvisor rating for Generator Installation companies in Niwot, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Installation needs.
Last update on April 30, 2025
Generator installers in Niwot
Professional Power Inc. is a locally-owned and operated electrical contractor rooted in Thornton, Colorado. We service all of Northern Colorado! Our team consists of certified electricians who are up to date with National Electrician Code standards, with a Master Electrician on board, ensuring each job gets done correctly the first time! We are a trusted full-service electrical resource for both residential and commercial projects and can ensure each project never misses a licensing sign-off. Our services include anything from new lighting, detection installs, fixture replacements, and more. Call us today!
"Perfectly. Could not be happier."
Tania D on December 2024
Professional Power Inc. is a locally-owned and operated electrical contractor rooted in Thornton, Colorado. We service all of Northern Colorado! Our team consists of certified electricians who are up to date with National Electrician Code standards, with a Master Electrician on board, ensuring each job gets done correctly the first time! We are a trusted full-service electrical resource for both residential and commercial projects and can ensure each project never misses a licensing sign-off. Our services include anything from new lighting, detection installs, fixture replacements, and more. Call us today!
"Perfectly. Could not be happier."
Tania D on December 2024
Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.
"Liars, Crooks and very dishonest"
Christopher L on September 2024
Heart Heating, Cooling, Plumbing & Electric provides the highest quality service for all your Furnaces, Air Conditioner, Boilers, Water Heaters, plumbing, and electrical systems. We utilize the latest technology to save our customers time and money, including tablet-based systems with "Uber Style" tracking of your technician and "Up Front" pricing so there are never any surprises. Our staff is licensed, insured, background checked, drug tested, and in a company uniform and vehicle for your safety and peace of mind. We are a veteran-owned company.
"Liars, Crooks and very dishonest"
Christopher L on September 2024
Lion Home Service is setting a new standard of excellence in the industry. We specialize in prompt service, quality fixes, and a reliable response that you can trust. We take pride in our reputation and have built our business one satisfied customer at a time. Whether you need an emergency repair, regular maintenance, or have a project you are planning, we are your total home solution. Service Delivered With Pride! Heating, Cooling, Electrical, Plumbing, Drain Cleaning, Septic, Roofing, Gutters, Indoor Air Quality and MORE! Look for the Home Service company offering the best service and guarantees to ensure your repair or service is done correctly the first time! 100% SATISFACTION GUARANTEE- We agree to accept responsibility for your complete satisfaction with the materials we use and the workmanship we provide. During the first year, if you are dissatisfied with our service or our people for any reason, we will do whatever it takes to make it right and correct the problem to your satisfaction. Additional Guarantees- We Value Your Safety- No Blame Game-We Value Your Time-Apples to Apples -Workmanship
"Lion Home Service did a terrific job pumping our septic tanks. They sent out their technician early on a Saturday morning."
Janet O on January 2025
Lion Home Service is setting a new standard of excellence in the industry. We specialize in prompt service, quality fixes, and a reliable response that you can trust. We take pride in our reputation and have built our business one satisfied customer at a time. Whether you need an emergency repair, regular maintenance, or have a project you are planning, we are your total home solution. Service Delivered With Pride! Heating, Cooling, Electrical, Plumbing, Drain Cleaning, Septic, Roofing, Gutters, Indoor Air Quality and MORE! Look for the Home Service company offering the best service and guarantees to ensure your repair or service is done correctly the first time! 100% SATISFACTION GUARANTEE- We agree to accept responsibility for your complete satisfaction with the materials we use and the workmanship we provide. During the first year, if you are dissatisfied with our service or our people for any reason, we will do whatever it takes to make it right and correct the problem to your satisfaction. Additional Guarantees- We Value Your Safety- No Blame Game-We Value Your Time-Apples to Apples -Workmanship
"Lion Home Service did a terrific job pumping our septic tanks. They sent out their technician early on a Saturday morning."
Janet O on January 2025
MightyBee Electric is a family owned, GREEN local company with 34 years in the field. We do not charge a trip fee for Angie's List members within the direct Denver metro area ( except Boulder, Longmont, Castle Pines, Castlerock and Parker which will be charged a $39 trip fee) and give free estimates up front of the work always. We never assume authorization and customers can pay by cash, check or credit card at the time of repair. Formerly owned MD ELECTRIC. See website for additional services. 5% military, First Responders and elderly discount
"I am giving a C-rating, when an F is probably more appropriate, due to not great customer service and the fact that I ended up spending much more money than was necessary because of the rude woman who schedules appointments and answers the phone. They get a score of C because ultimately what I asked the electricians to do, they did. I am writing this to make sure anyone who considers this company is well aware of the issues. The electricians were good, but there were problems with the job that I have outlined below. The job: I had two ceiling fans I wanted replaced. I bought two new ones and the electricians did install them and haul out the old fans. The job was completed satisfactorily. History. About two or three weeks ago I started detecting a burning smell coming from one fan when the light was on. I searched Angie’s List for an electrician and chose MightyBee. The woman who answers the phone is rude. I told her the problem and she couldn’t get me off the phone fast enough. She said it was more expensive to find replacement parts than to just buy a new fan. It was clear she didn’t want the job. I am moving, I’m in a time crunch, and I finally decided it would be easier to just buy new fans than to try to find someone who could fix the one with the burning smell. I have a sort of master suite setup with two fans, so they have to match. Replacing just one fan was not an option. The fans I had are no longer produced. I did not intend to call MightyBee again, but I did accidentally. Same rude woman who answered the phone the first time I called. I have no idea what is up with this person. It’s like calling to schedule an appointment just ruins her day. Anyway, I went ahead and scheduled. Same reason as before. Time crunch. MightyBee has this A rating and I figured: how bad can it be? Day of appointment. This is a REALLY, really low-tech company. No appointment reminders, no text messages, no emails, no call ahead to let you know they’re coming. I got an appointment window and that was it. Next thing I know, the guys are at my door. It’s snowy, dirty and mucky outside from a recent heavy snowstorm. They came in, shoes CAKED with ice and dirt. They walked onto my clean hardwood floors without even enquiring if it was okay first. I asked if they had shoe covers. No. I have white carpet upstairs where the fans are, and the carpet had JUST been cleaned. They did remove their shoes, which is fine, but it was inconvenient for them since they had to keep going outside to the truck. Why would any company who does work in people’s homes not provide shoe covers? Unbelievable. As I said, this company is really low tech. While working on the ceiling fans, they spread the parts out on my clean white carpet, including the old dusty fans. No drop cloth. This really bugged me, but the carpet survived, so all’s well that ends well, I guess. Turns out, the burning smell wasn’t the fan at all. Wasn’t electrical. It was the transformer for the remote control for the fan I’d installed years ago, and the transformer had malfunctioned or burned out. This is an add-on part, not part of the fan. If they had come out in the first place to take a look, all they had to do was remove the remote-control transformer and install a new one. That was the only problem with the fan. Basically, the rude woman on the phone cost me $800. The cost of 2 new fans and the installation. If the two electricians had not been nice and done a good job installing the fans, I would have given the company an F because of the rude woman who answers the phone and the fact that she doesn’t give two hoots about helping you with your problem. The electricians are fine. Very nice. Good at what they do. Really accommodating guys. For them, the company gets a C."
Heather D on December 2019
MightyBee Electric is a family owned, GREEN local company with 34 years in the field. We do not charge a trip fee for Angie's List members within the direct Denver metro area ( except Boulder, Longmont, Castle Pines, Castlerock and Parker which will be charged a $39 trip fee) and give free estimates up front of the work always. We never assume authorization and customers can pay by cash, check or credit card at the time of repair. Formerly owned MD ELECTRIC. See website for additional services. 5% military, First Responders and elderly discount
"I am giving a C-rating, when an F is probably more appropriate, due to not great customer service and the fact that I ended up spending much more money than was necessary because of the rude woman who schedules appointments and answers the phone. They get a score of C because ultimately what I asked the electricians to do, they did. I am writing this to make sure anyone who considers this company is well aware of the issues. The electricians were good, but there were problems with the job that I have outlined below. The job: I had two ceiling fans I wanted replaced. I bought two new ones and the electricians did install them and haul out the old fans. The job was completed satisfactorily. History. About two or three weeks ago I started detecting a burning smell coming from one fan when the light was on. I searched Angie’s List for an electrician and chose MightyBee. The woman who answers the phone is rude. I told her the problem and she couldn’t get me off the phone fast enough. She said it was more expensive to find replacement parts than to just buy a new fan. It was clear she didn’t want the job. I am moving, I’m in a time crunch, and I finally decided it would be easier to just buy new fans than to try to find someone who could fix the one with the burning smell. I have a sort of master suite setup with two fans, so they have to match. Replacing just one fan was not an option. The fans I had are no longer produced. I did not intend to call MightyBee again, but I did accidentally. Same rude woman who answered the phone the first time I called. I have no idea what is up with this person. It’s like calling to schedule an appointment just ruins her day. Anyway, I went ahead and scheduled. Same reason as before. Time crunch. MightyBee has this A rating and I figured: how bad can it be? Day of appointment. This is a REALLY, really low-tech company. No appointment reminders, no text messages, no emails, no call ahead to let you know they’re coming. I got an appointment window and that was it. Next thing I know, the guys are at my door. It’s snowy, dirty and mucky outside from a recent heavy snowstorm. They came in, shoes CAKED with ice and dirt. They walked onto my clean hardwood floors without even enquiring if it was okay first. I asked if they had shoe covers. No. I have white carpet upstairs where the fans are, and the carpet had JUST been cleaned. They did remove their shoes, which is fine, but it was inconvenient for them since they had to keep going outside to the truck. Why would any company who does work in people’s homes not provide shoe covers? Unbelievable. As I said, this company is really low tech. While working on the ceiling fans, they spread the parts out on my clean white carpet, including the old dusty fans. No drop cloth. This really bugged me, but the carpet survived, so all’s well that ends well, I guess. Turns out, the burning smell wasn’t the fan at all. Wasn’t electrical. It was the transformer for the remote control for the fan I’d installed years ago, and the transformer had malfunctioned or burned out. This is an add-on part, not part of the fan. If they had come out in the first place to take a look, all they had to do was remove the remote-control transformer and install a new one. That was the only problem with the fan. Basically, the rude woman on the phone cost me $800. The cost of 2 new fans and the installation. If the two electricians had not been nice and done a good job installing the fans, I would have given the company an F because of the rude woman who answers the phone and the fact that she doesn’t give two hoots about helping you with your problem. The electricians are fine. Very nice. Good at what they do. Really accommodating guys. For them, the company gets a C."
Heather D on December 2019
We are a dealer and installer of Camera Systems, Alarm Systems, Alarm Monitoring, Access Control, Audio/Visual, and so much more.
"Made the project at 1am and by 10am the next morning it was totally taken care of. Fast, professional, knowledgeable, and fairly priced."
Michelle L on November 2024
We are a dealer and installer of Camera Systems, Alarm Systems, Alarm Monitoring, Access Control, Audio/Visual, and so much more.
"Made the project at 1am and by 10am the next morning it was totally taken care of. Fast, professional, knowledgeable, and fairly priced."
Michelle L on November 2024
Electrical Contractor. Providing Electrical Services for residential, commercial, new construction, remodeling and repairs.
"Let me just say that the next time I have an electrical related issue that requires some attention it will be Sparky's that I call. Every box that needs checked to leave me satisfied about the service was checked plus those extra boxes that go beyond just satisfaction that give that confidence and peace of mind I need, everyone needs... to feel we've 'made the right decision in who we hire. Thanks Sparky's & Hector! No stone was left unturned and no box was left unchecked! ;)"
William M on July 2024
Electrical Contractor. Providing Electrical Services for residential, commercial, new construction, remodeling and repairs.
"Let me just say that the next time I have an electrical related issue that requires some attention it will be Sparky's that I call. Every box that needs checked to leave me satisfied about the service was checked plus those extra boxes that go beyond just satisfaction that give that confidence and peace of mind I need, everyone needs... to feel we've 'made the right decision in who we hire. Thanks Sparky's & Hector! No stone was left unturned and no box was left unchecked! ;)"
William M on July 2024
We are a quality service company that specializes in finding electrical solutions that fit your house or business. We give an up front price and provide great information so you can make the best decision for your busses and family. With Diagnostic Guys you will get honest and professional work!
"The Diagnostic Guys are our go to for anything electrical. They have done great work updating our light fixtures, adding new lighting (indoor and outdoor) and adding outlets. They are always courteous, prompt and meticulous about the details. Couldn’t be happier with the services they’ve provided for us!"
Kaitlin G on January 2024
We are a quality service company that specializes in finding electrical solutions that fit your house or business. We give an up front price and provide great information so you can make the best decision for your busses and family. With Diagnostic Guys you will get honest and professional work!
"The Diagnostic Guys are our go to for anything electrical. They have done great work updating our light fixtures, adding new lighting (indoor and outdoor) and adding outlets. They are always courteous, prompt and meticulous about the details. Couldn’t be happier with the services they’ve provided for us!"
Kaitlin G on January 2024
TyTech Services LLC is your industry expert in Windsor and the surrounding areas. I pride myself on my extreme professionalism. Give me a call today, I look forward to working with you! Website: https://tytech.services/
"I highly recommend this business. Tylers quality exceeded my expectations. I am completely impressed with the TVs, Soundsystem, and surround sound, he set up for me."
Michelle R on October 2024
TyTech Services LLC is your industry expert in Windsor and the surrounding areas. I pride myself on my extreme professionalism. Give me a call today, I look forward to working with you! Website: https://tytech.services/
"I highly recommend this business. Tylers quality exceeded my expectations. I am completely impressed with the TVs, Soundsystem, and surround sound, he set up for me."
Michelle R on October 2024
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
We can take on a wide range of residential and commercial electrical projects to include full installation for additions and remodels as well as wiring/panel upgrades, and a variety of other projects. We take pride in the quality of our work and our commitment to outstanding results. We look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.
Innovate Electric, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
"Extremely professional. Easy to work with. Overall great experience."
Bill M on January 2020
Innovate Electric, Inc. is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.
"Extremely professional. Easy to work with. Overall great experience."
Bill M on January 2020
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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