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TRUSTED BY GUILFORD, CT HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon21
    Verified generator installs reviews

Find Generator install pros in Guilford

Avatar for The Builders & Cleaners

The Builders & Cleaners

4.89(
94
)
Approved Pro

The Builders & Cleaners

4.89(
94
)
Approved Pro
Customers say: True professional
8 years of experience
Free onsite estimate

Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. We are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. We pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete.

"Reached out to get our gutters cleaned. David was very responsive and offered a reasonable rate. Did the job quickly and thoroughly, sent lots of pictures and video of the finished work. Very satisfied, would definitely recommend"

Isaac D on October 2025

Based in West Haven, Connecticut, our team has provided an excellent, affordable service to more than thousands of houses over the years. We are committed to supporting our customers throughout the evaluation process, during the service itself and are available to answer any queries once the work is complete. We are a licensed and fully insured company aiming to respond to all requests involving our services within 24 hours or less. Our professional and knowledgeable staff have a combined experience of over 12 years within the construction, air duct cleaning, and landscaping industries, ensuring guaranteed satisfaction with every job. We pride ourselves in providing a safe, hazard-free environment and maintaining respectful, cordial communications with all of our clients. All technicians can be relied on to keep project sites clean both during and after the work is complete.

"Reached out to get our gutters cleaned. David was very responsive and offered a reasonable rate. Did the job quickly and thoroughly, sent lots of pictures and video of the finished work. Very satisfied, would definitely recommend"

Isaac D on October 2025


Avatar for Cawiamca Heating, Cooling, and Electrical

Cawiamca Heating, Cooling, and Electrical

5.00(
45
)
Approved Pro

Cawiamca Heating, Cooling, and Electrical

5.00(
45
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
12 years of experience

FULL SERVICE HEATING, COOLING, AND ELECTRICAL SERVICES. CERTIFIED COLD WEATHER HEAT PUMP INSTALLER -- REBATES AVAILABLE!! Cawiamca Heating, Cooling and Electrical-- Offers top quality heating & cooling & electrical services. Professional Service and Guaranteed Quality Workmanship. Cawiamca is a trusted, BBB A+ Rated Contractor serving the Connecticut Shoreline since 2014.

"Everyone was so friendly and knowledgeable! Came out at no charge to look and advise on my heating concern! I recommend this company to anyone ! "

Seth P on January 2026

FULL SERVICE HEATING, COOLING, AND ELECTRICAL SERVICES. CERTIFIED COLD WEATHER HEAT PUMP INSTALLER -- REBATES AVAILABLE!! Cawiamca Heating, Cooling and Electrical-- Offers top quality heating & cooling & electrical services. Professional Service and Guaranteed Quality Workmanship. Cawiamca is a trusted, BBB A+ Rated Contractor serving the Connecticut Shoreline since 2014.

"Everyone was so friendly and knowledgeable! Came out at no charge to look and advise on my heating concern! I recommend this company to anyone ! "

Seth P on January 2026


JMP Electric, LLC

4.89(
85
)
Approved Pro

JMP Electric, LLC

4.89(
85
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
12 years of experience

JMP Electric, LLC, 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, make us true professionals. Above all, we are watchful of our customers' interest and make their concern the basis of our business. Contact us today and let's start the conversation around your next project!

"Jeremy and his staff are professional, intelligent and kind. Jeremy answered all the questions I had and even explained a lot of things I didnâ t know to ask about. All of the work was very high quality. I will definitely be calling him again for any future electrical work needed around the home."

Kellen C on July 2024

JMP Electric, LLC, 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, make us true professionals. Above all, we are watchful of our customers' interest and make their concern the basis of our business. Contact us today and let's start the conversation around your next project!

"Jeremy and his staff are professional, intelligent and kind. Jeremy answered all the questions I had and even explained a lot of things I didnâ t know to ask about. All of the work was very high quality. I will definitely be calling him again for any future electrical work needed around the home."

Kellen C on July 2024


Avatar for Extel Communications, Inc.

Extel Communications, Inc.

4.96(
37
)
Approved Pro

Extel Communications, Inc.

4.96(
37
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
39 years of experience

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023

We're a local family-owned and operated business started in 1987 with hundreds of satisfied customers throughout Connecticut and New York. We install and maintain hosted-cloud and on-premise telephone systems and provide service for your existing telephone system. Additionally, we offer telco & cable company network services, troubleshoot WiFi issues including installing wireless access points for WiFi connectivity, install data, fiber and voice cabling, security cameras and computer networks. Contact us today for a no charge, no obligation survey for all of your telecom and data needs!

"Immediate response. Expert, knowledgeable work. Excellent customer service. Very reasonable price. Would hire them again without question."

Brian M on December 2023


Avatar for A & A Electrical Contractors, LLC

A & A Electrical Contractors, LLC

4.99(
35
)
Approved Pro

A & A Electrical Contractors, LLC

4.99(
35
)
Approved Pro
Super Service Award
Customers say: Quick response
6 years of experience
Free onsite estimate

At A & A Electrical Contractors, LLC, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Alberto is the best. He showed up early and stayed late. I look forward to working with him again in the future. The job he did for me was truly beautiful. If you need an electrician give him a call. You can't go wrong."

Kennard R on September 2025

At A & A Electrical Contractors, LLC, we take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Alberto is the best. He showed up early and stayed late. I look forward to working with him again in the future. The job he did for me was truly beautiful. If you need an electrician give him a call. You can't go wrong."

Kennard R on September 2025


Avatar for Dynamic Electrical Systems, LLC

Dynamic Electrical Systems, LLC

4.90(
67
)
Approved Pro

Dynamic Electrical Systems, LLC

4.90(
67
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
19 years of experience

Dynamic Electrical Systems LLC is a small family run business located in Meriden CT. We are Licensed, Insured & Accredited by the BBB and carry over 25 years experience. Check us out on Google too, our reviews are great! or Visit us on the web at DynamicElectricalSystems. c o m

"He came the same day and gave me a very reasonable estimate. He was able to book my job a few days later and it was done quickly and efficiently."

Amy F on April 2025

Dynamic Electrical Systems LLC is a small family run business located in Meriden CT. We are Licensed, Insured & Accredited by the BBB and carry over 25 years experience. Check us out on Google too, our reviews are great! or Visit us on the web at DynamicElectricalSystems. c o m

"He came the same day and gave me a very reasonable estimate. He was able to book my job a few days later and it was done quickly and efficiently."

Amy F on April 2025


Avatar for W B Lightning Rods

W B Lightning Rods

4.93(
297
)
Approved Pro

W B Lightning Rods

4.93(
297
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
25 years of experience

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024


"They reached out quickly to me and discussed the job and arranged a time to come and give a estimate. Rob showed up on time and was knowledgeable and helpful. I accepted the estimate and arranged a time for the work to be done. Once again Rob showed up on time prepared to do the work. He complained the job in the amount of time given. The work that was done was well done and very professional. He was very helpful and easy to work with. Also he was able to answer any questions that I had. I would recommend them to do work for others and will be hiring them again for any future work that needs to be done. Thanks Rob. Appreciate the work you did."

James G on January 2025

With a knack for excellence, R A Buckley & Son Electrical Contractors, LLC, can handle all your electrical needs big or small. Call us today and let us be your one-stop solution for all your electrical needs.

"They reached out quickly to me and discussed the job and arranged a time to come and give a estimate. Rob showed up on time and was knowledgeable and helpful. I accepted the estimate and arranged a time for the work to be done. Once again Rob showed up on time prepared to do the work. He complained the job in the amount of time given. The work that was done was well done and very professional. He was very helpful and easy to work with. Also he was able to answer any questions that I had. I would recommend them to do work for others and will be hiring them again for any future work that needs to be done. Thanks Rob. Appreciate the work you did."

James G on January 2025


Avatar for Power Forward LLC

Power Forward LLC

5.00(
22
)
Approved Pro

Power Forward LLC

5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

Serving Shoreline Connecticut for 15 years, Power Forward offers a level of service to match the quality of the area. We understand that we are not working on a house, we are working in your home. By staying up to date with the rapidly advancing technology in the trade, Power Forward provides the latest in design and energy efficiency. With our experience in southern New England which boasts some of the oldest homes in the country, Power Forward has the unique ability to efficiently troubleshoot antiquated electrical systems or can seamlessly integrate the latest technology with your vintage home.

"Great. The tech was fantastic"

John F on April 2024

Serving Shoreline Connecticut for 15 years, Power Forward offers a level of service to match the quality of the area. We understand that we are not working on a house, we are working in your home. By staying up to date with the rapidly advancing technology in the trade, Power Forward provides the latest in design and energy efficiency. With our experience in southern New England which boasts some of the oldest homes in the country, Power Forward has the unique ability to efficiently troubleshoot antiquated electrical systems or can seamlessly integrate the latest technology with your vintage home.

"Great. The tech was fantastic"

John F on April 2024


Avatar for Cassella Electric

Cassella Electric

4.93(
109
)
Approved Pro

Cassella Electric

4.93(
109
)
Approved Pro
Customers say: True professional
22 years of experience
Free onsite estimate

Cassella Electric - Serving all of your electrical installation and in-home repairs. Starting in the electrical trade in 1998 and opening own business in 2005. Our focus is to respect your home as if it was our own. Cassella Electric specializes in all residential installations and light commercial work. No job too small to call about.

"Rob was very professional. He did the job the same day in a timely fashion"

Joanna M on July 2025

Cassella Electric - Serving all of your electrical installation and in-home repairs. Starting in the electrical trade in 1998 and opening own business in 2005. Our focus is to respect your home as if it was our own. Cassella Electric specializes in all residential installations and light commercial work. No job too small to call about.

"Rob was very professional. He did the job the same day in a timely fashion"

Joanna M on July 2025

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Generator Install questions, answered by experts

When installed and used correctly, generators are safe to use. The most critical generator safety tips to keep in mind are:

  • Never use a portable generator inside an enclosed space, as the carbon monoxide exhaust it creates is lethal.

  • Never attempt to connect your generator to your home’s electrical panel independently; hire a professional for this dangerous job.

  • Never overload your generator by connecting more appliances than for which it’s rated; you can damage your generator and appliances or even cause a fire.

Generator size requirements vary wildly among properties, but typical generator sizes are listed below based on home square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14kW

  • 2,500 sq ft: 12–16kW

  • 3,000 sq ft: 16–20kW+

Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.

The cost to install a whole-house generator averages at $5,200, but costs can range from $1,500 to $8,900, depending on the type and size of the generator, and the labor required to install it. To find the best deal while still ensuring the unit meets all the needs of your household, hire an electrician to calculate the electrical load of your must-have appliances and electronics beforehand so you don’t pay for more power than you need. As always, be sure to get at least three quotes to find the ideal fit for your needs and budget.

Generators run on a variety of fuel types, ranging from natural gas to solar power. Keep in mind that fuel costs varying by type:

  • Natural gas: $2,000–$21,000 per year 

  • Liquid propane: $2,000–$21,000 per year

  • Diesel: $3,000–$20,000 per year

  • Gasoline: $500–$3,000 per year

  • Solar generator: $2,000–$25,000 per unit

  • Battery backup: $10,000–$25,000 per unit

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

The Guilford, CT homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

What do you need done? We’ll find top pros.
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