Get matched with top generator installers in Sleepy Hollow, IL
There are 7 highly-rated local generator installers.
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30 Verified Reviews for Generator Installation pros in Sleepy Hollow, IL
*The Angi rating for Generator Installation companies in Sleepy Hollow, IL 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 Sleepy Hollow, IL 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 June 07, 2025
Generator installers in Sleepy Hollow
We offer the best quality electrical work, we strive into quality work. Very responsible on our schedule. We offer a clean environment, leave the project cleaned and strive on making the project go smooth as possible and avoid hassles and drama for homeowners.
"D Best did a great job on a large commercial project for us, Bridgewater Construction Management,Inc."
Frank H on April 2025
We offer the best quality electrical work, we strive into quality work. Very responsible on our schedule. We offer a clean environment, leave the project cleaned and strive on making the project go smooth as possible and avoid hassles and drama for homeowners.
"D Best did a great job on a large commercial project for us, Bridgewater Construction Management,Inc."
Frank H on April 2025
We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.
We are the experts in the field of Whole Home Generator Sales and Installation, with over 20 years of experience in the game. We provide turn-key installation by licensed professionals - 24 hour emergency service - Remote Monitoring - Long term maintenance and service by factory trained technicians.
Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.
"I had a Mitsubishi Mini Split air conditioning system installed by Four Seasons on May 20th, 2021. The pump and drainage system on one of the three units installed was installed incorrectly in several ways. It was not attached to the wall at first, not attached correctly, the pump installed was too small for the system, the drainage line was too small for the system, there were too many corners for the tube to drain correctly and there was a "massive kink" in the drainage line when originally installed that caused the pump to repeatedly be overworked and fail. None of this information was provided to me at the time of the install, but bit by bit by many technicians in the intervening years who came to attempt to fix the system. They were never able to do so and so the system never worked properly yet was paid for by me because I did not know that. Technicians had to come multiple times within the first 5 days of installation including the day after installation to try to fix the problem. They had to come at least nine times to attempt to fix the installation problem that was finally diagnosed correctly only on 6/3/25. The idea that there is a one-year warranty on the pump is unrelated to the complaint that a functioning system was never installed. All of this time passed because I was repeatedly told by technicians the problem, which they all said was due to improper installation, was fixed and then subsequent technicians informed me that it was not. Four Seasons is now unwilling to fix the failed installation without large additional charges. I would like Four Seasons to either refund me for never completing the job or to finish the installation job they never successfully completed."
Cameron W on June 2025
Four Seasons Heating, Air Conditioning, and Plumbing began as a father-son business operating out of a Chicago garage in 1971. They went from home to home repairing furnaces and air conditioners with the goal of offering their customers honest and competent service. No extra charge for 24 hr emergency service. Additional contacts: Chicago 773-413-1505 & 773-413-1028, South suburbs 708-406-3002, Southwest suburbs 815-306-2471, West suburbs 630-210-3352, North & Northwest 847-201-3222 , Northwest Indiana 219-228-8606, and (866) 444-2404. Additional emails - [email protected], [email protected], [email protected]. Additional fax numbers- 773-284-9484, 847-783-0400. Additional contact names - David Musial. Additional DBAs - Four Seasons Heating, Air Conditioning and Plumbing, Four Seasons Heating & Air Conditioning, Inc., Four Seasons Heating & Air.
"I had a Mitsubishi Mini Split air conditioning system installed by Four Seasons on May 20th, 2021. The pump and drainage system on one of the three units installed was installed incorrectly in several ways. It was not attached to the wall at first, not attached correctly, the pump installed was too small for the system, the drainage line was too small for the system, there were too many corners for the tube to drain correctly and there was a "massive kink" in the drainage line when originally installed that caused the pump to repeatedly be overworked and fail. None of this information was provided to me at the time of the install, but bit by bit by many technicians in the intervening years who came to attempt to fix the system. They were never able to do so and so the system never worked properly yet was paid for by me because I did not know that. Technicians had to come multiple times within the first 5 days of installation including the day after installation to try to fix the problem. They had to come at least nine times to attempt to fix the installation problem that was finally diagnosed correctly only on 6/3/25. The idea that there is a one-year warranty on the pump is unrelated to the complaint that a functioning system was never installed. All of this time passed because I was repeatedly told by technicians the problem, which they all said was due to improper installation, was fixed and then subsequent technicians informed me that it was not. Four Seasons is now unwilling to fix the failed installation without large additional charges. I would like Four Seasons to either refund me for never completing the job or to finish the installation job they never successfully completed."
Cameron W on June 2025
We can take on a wide range of residential and commercial low voltage / electrical projects which might include the design and installation of a high end home theater system or just helping set up your new wireless home network. 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 always guarantee your satisfaction.
"They were very professional, knowledgeable, and patient for answering all my questions (even some random one that didn't involve the project). The TV wall mount installation was perfect!"
Briana B on May 2025
We can take on a wide range of residential and commercial low voltage / electrical projects which might include the design and installation of a high end home theater system or just helping set up your new wireless home network. 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 always guarantee your satisfaction.
"They were very professional, knowledgeable, and patient for answering all my questions (even some random one that didn't involve the project). The TV wall mount installation was perfect!"
Briana B on May 2025
Spark 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 customer's interests, and make their concerns the basis of our business. Services offered by the company : - Electrical - Plumbing - Welding - Bathroom remodeling - Tile installation - Kitchen remodeling - All kind of Handyman services
"Was extremely professional , perform the task of replacement of gas mantle ,"
Victor T on August 2024
Spark 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 customer's interests, and make their concerns the basis of our business. Services offered by the company : - Electrical - Plumbing - Welding - Bathroom remodeling - Tile installation - Kitchen remodeling - All kind of Handyman services
"Was extremely professional , perform the task of replacement of gas mantle ,"
Victor T on August 2024
Double D Services 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 customer's interests, and make their concerns the basis of our business.
"Professional , punctual , cleaned up after they finished ."
Mike C on January 2022
Double D Services 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 customer's interests, and make their concerns the basis of our business.
"Professional , punctual , cleaned up after they finished ."
Mike C on January 2022
Chicagoland Union Electrical Contractor with over 100 years combined experience in the commercial and industrial sectors. O'Carroll Electrical Contracting is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! ocarrollelectric.com
"They did a very good job. They are a great company."
Ryan F on August 2021
Chicagoland Union Electrical Contractor with over 100 years combined experience in the commercial and industrial sectors. O'Carroll Electrical Contracting is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today! ocarrollelectric.com
"They did a very good job. They are a great company."
Ryan F on August 2021
At Rhodium Contractors we specialize in indoor & outdoor home renovation, as well as general handymen work. We are strongly committed to providing high-quality work and customer service. We offer free estimates and will work with you side by side on every aspect along the way. We uphold a high standard of integrity bound by fairness, honesty, and responsibility in all of our jobs. There is no job too big, or too small for our team. Call in today and let us put our experience to work for you!
"did a good job"
Alicia J on May 2024
At Rhodium Contractors we specialize in indoor & outdoor home renovation, as well as general handymen work. We are strongly committed to providing high-quality work and customer service. We offer free estimates and will work with you side by side on every aspect along the way. We uphold a high standard of integrity bound by fairness, honesty, and responsibility in all of our jobs. There is no job too big, or too small for our team. Call in today and let us put our experience to work for you!
"did a good job"
Alicia J on May 2024
M&K Contractors is a Chicago area company providing commercial general contracting construction, project management and design build services to both private and public clients. We have maintained a solid record of quality, reliability and customer service in a very competitive and complex marketplace. We specialize in commercial build-outs & remodel projects and focus on meeting client expectations and bringing in projects on time and within budget. Our sweet spot is a small or medium-sized interior commercial project from a few thousand square feet to several floors. We do not build the building we finish the inside to meet demanding customer requirements.
"My best experience with any contractor"
TJ S on May 2022
M&K Contractors is a Chicago area company providing commercial general contracting construction, project management and design build services to both private and public clients. We have maintained a solid record of quality, reliability and customer service in a very competitive and complex marketplace. We specialize in commercial build-outs & remodel projects and focus on meeting client expectations and bringing in projects on time and within budget. Our sweet spot is a small or medium-sized interior commercial project from a few thousand square feet to several floors. We do not build the building we finish the inside to meet demanding customer requirements.
"My best experience with any contractor"
TJ S on May 2022
We are a locally owned and operated company. We value honesty and integrity in all aspects for commercial business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
We are a locally owned and operated company. We value honesty and integrity in all aspects for commercial business. We offer a variety of home improvement services that are customized to each individual project. We pride ourselves on the quality of our work, as well as our commitment to outstanding results. We look forward to building lasting relationships with our clients and guarantee your satisfaction!
FAQs for generator installation projects in Sleepy Hollow, IL
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
- East Dundee
- West Dundee
- Carpentersville
- Gilberts
- Barrington Hills
- Algonquin
- Lake In The Hills
- Elgin
- Fox River Grove
- Cary
- Oakwood Hills
- South Elgin
- Barrington
- Huntley
- Hoffman Estates
- Streamwood
- Schaumburg
- Crystal Lake
- Lake Barrington
- South Barrington
- North Barrington
- Port Barrington
- Deer Park
- Tower Lakes
- Hampshire
- Pingree Grove
- Carol Stream
- Inverness
- Campton Hills
- Burlington
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