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Verified Reviews for Generator Install pros in Derry, PA

*The Angi rating for Generator Install companies in Derry, PA 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 Derry, PA 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 26, 2025

Find Generator install pros in Derry

Avatar for Woodhyrst Inc

Woodhyrst Inc

6105 OLD ROUTE 8
4.61(
18
)
•Approved Pro

Woodhyrst Inc

6105 OLD ROUTE 8
4.61(
18
)
•Approved Pro
Customers say: Quality work
121 local quotes requested
52 years of experience

Founded in 1973, Woodhyrst has grown to be one of the outstanding environmental air and power solution companies. Staffed by seasoned electrical professionals, the company has accepted environmental challenges from coast to coast. Woodhyrst represents only the finest power solution manufacturers. From single unit installations to turn-key operations, the Woodhyrst professionals are prepared to meet your needs and find practical, economical residential and commercial power solutions. Woodhyrst, Inc. services all of our products that we sell. Our services include installations, repairs, and maintenance of our products. With 24/7 technical assistance, they ensure uninterrupted power for their clients. Owner Ralph Jockel and his team provide preventive and emergency maintenance services, guaranteeing reliable and efficient power solutions tailored to your needs. Contact them at 724-625-1515 or email Ralph at [email protected] for more information. Visit their website at Woodhyrst, Inc..

"We had a generator installed several years ago and very happy with it and all the service that they have done over the years."

Coney H on June 2024

Founded in 1973, Woodhyrst has grown to be one of the outstanding environmental air and power solution companies. Staffed by seasoned electrical professionals, the company has accepted environmental challenges from coast to coast. Woodhyrst represents only the finest power solution manufacturers. From single unit installations to turn-key operations, the Woodhyrst professionals are prepared to meet your needs and find practical, economical residential and commercial power solutions. Woodhyrst, Inc. services all of our products that we sell. Our services include installations, repairs, and maintenance of our products. With 24/7 technical assistance, they ensure uninterrupted power for their clients. Owner Ralph Jockel and his team provide preventive and emergency maintenance services, guaranteeing reliable and efficient power solutions tailored to your needs. Contact them at 724-625-1515 or email Ralph at [email protected] for more information. Visit their website at Woodhyrst, Inc..

"We had a generator installed several years ago and very happy with it and all the service that they have done over the years."

Coney H on June 2024

Avatar for The Margroff Company

The Margroff Company

339 Shaffer Lane
5.00(
1
)
•Approved Pro

The Margroff Company

339 Shaffer Lane
5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

The Margroff Company is a full service electrical company with over 20 years of experience. We are honest, loyal and provide the best customer satisfaction int own. We pay close attention to detail and owner, Jubal, is always on site to ensue quality work. Call us for a free estimate!

"Fantastic company! They went above and beyond."

Dave P on August 2019

The Margroff Company is a full service electrical company with over 20 years of experience. We are honest, loyal and provide the best customer satisfaction int own. We pay close attention to detail and owner, Jubal, is always on site to ensue quality work. Call us for a free estimate!

"Fantastic company! They went above and beyond."

Dave P on August 2019

A & J Contracting Company, LLC

118 Foxtail Drive
5.00(
21
)
•Approved Pro

A & J Contracting Company, LLC

118 Foxtail Drive
5.00(
21
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

A & J Contracting Company, LLC is Pittsburgh's premier professional home improvement company operating as general and specialty contractors in the finish and rough carpentry industry. We are most famous for the beautiful custom kitchen and bathrooms we design and remodel for both our residential and commercial clients. You will find that we are a dedicated small business enterprise committed to providing quality construction services and on time service delivery within budget. Please call us today to schedule your appointment with Pittsburgh's true professionals. Your satisfaction is our guarantee.

"I donâ  t know where to begin to say how satisfied I am with A & J Contracting! I needed my basement renovated ASAP and Mr. Anthony met with me in a timely manner explaining in great detail the work he would perform and how pleased I would be! Let me tell you he did NOT disappoint because he and his partner Mark performed what I call a â  miracleâ  in renovating my basement and went above and beyond my expectations!!!! Iâ  ve shown many the before and after pictures of what I now can call my family room and the response each time was how â  beautifulâ  of a job Anthony did!! If you are in need a great contractor donâ  t look anywhere else but A & J Contractor and call Anthony NOW! My family still canâ  t believe what A & J Contractor did with that old and in bad shape basement!! Very professional and the many years of experience really was on display!! Thank you again Anthony and Mark for restoring our basement!! Iâ  ll definitely be utilizing them in the future and wonâ  t have to look elsewhere!!"

Steven K on May 2021

A & J Contracting Company, LLC is Pittsburgh's premier professional home improvement company operating as general and specialty contractors in the finish and rough carpentry industry. We are most famous for the beautiful custom kitchen and bathrooms we design and remodel for both our residential and commercial clients. You will find that we are a dedicated small business enterprise committed to providing quality construction services and on time service delivery within budget. Please call us today to schedule your appointment with Pittsburgh's true professionals. Your satisfaction is our guarantee.

"I donâ  t know where to begin to say how satisfied I am with A & J Contracting! I needed my basement renovated ASAP and Mr. Anthony met with me in a timely manner explaining in great detail the work he would perform and how pleased I would be! Let me tell you he did NOT disappoint because he and his partner Mark performed what I call a â  miracleâ  in renovating my basement and went above and beyond my expectations!!!! Iâ  ve shown many the before and after pictures of what I now can call my family room and the response each time was how â  beautifulâ  of a job Anthony did!! If you are in need a great contractor donâ  t look anywhere else but A & J Contractor and call Anthony NOW! My family still canâ  t believe what A & J Contractor did with that old and in bad shape basement!! Very professional and the many years of experience really was on display!! Thank you again Anthony and Mark for restoring our basement!! Iâ  ll definitely be utilizing them in the future and wonâ  t have to look elsewhere!!"

Steven K on May 2021

Avatar for Hurricane Home Solutions Southern Tier, Inc.

Hurricane Home Solutions Southern Tier, Inc.

1392 Frey Rd
4.86(
164
)
•Approved Pro

Hurricane Home Solutions Southern Tier, Inc.

1392 Frey Rd
4.86(
164
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
185 local quotes requested

Hurricane Generators is dedicated to delivering a superior experience from start to finish—backed by prompt service, attention to detail, and a commitment to your complete satisfaction. When the power goes out, we’re here for you with 24/7 emergency service and reliable solutions you can count on. We proudly work with top brands like Generac, Cummins, and Champion to match every homeowner with the ideal generator for their needs. From expert installation to ongoing maintenance, our team ensures your system is ready whenever you need it most. With Hurricane Generators, you get more than just a product—you get a partner you can trust. We return calls promptly, show up on time, and deliver on every promise. And with our guaranteed competitive pricing, you can have peace of mind knowing you’re getting exceptional value along with exceptional service.

"Great product vs. cost ratio. Electrical inspector who checked their work, as required, after installation remarked that 'this company always does good work.' Completed the work in less than a day with little intrusion into my at home activities. One thing I would add is I wish they had spent a little more time explaining the controls and operation. I still don't know what the one circuit breaker on the outside does or if/when it would be used."

Thomas R on June 2022

Hurricane Generators is dedicated to delivering a superior experience from start to finish—backed by prompt service, attention to detail, and a commitment to your complete satisfaction. When the power goes out, we’re here for you with 24/7 emergency service and reliable solutions you can count on. We proudly work with top brands like Generac, Cummins, and Champion to match every homeowner with the ideal generator for their needs. From expert installation to ongoing maintenance, our team ensures your system is ready whenever you need it most. With Hurricane Generators, you get more than just a product—you get a partner you can trust. We return calls promptly, show up on time, and deliver on every promise. And with our guaranteed competitive pricing, you can have peace of mind knowing you’re getting exceptional value along with exceptional service.

"Great product vs. cost ratio. Electrical inspector who checked their work, as required, after installation remarked that 'this company always does good work.' Completed the work in less than a day with little intrusion into my at home activities. One thing I would add is I wish they had spent a little more time explaining the controls and operation. I still don't know what the one circuit breaker on the outside does or if/when it would be used."

Thomas R on June 2022

Avatar for Prodigy Electrical Group, LLC

Prodigy Electrical Group, LLC

3035 Stayton Street
4.98(
49
)
•Approved Pro

Prodigy Electrical Group, LLC

3035 Stayton Street
4.98(
49
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

Unbeatable 24 hour complete residential, commercial, and Industrial electrical service. Certified master electrician available. City of Pittsburgh electrical contracting license. Insured, registered, certified. No pressure, no haggles! Professional and reliable. Call us today with any questions you may have and we will be happy to give you a free estimate. Trip charge only on diagnostic calls.

"I wrote a review before, but the installation was perfect. Personable, caring, and well aware of their surroundings. They were so kind and quiet with the job. I barely heard and power tools and they left leaving no mess! I would highly recommend it!"

Nicole D on December 2021

Unbeatable 24 hour complete residential, commercial, and Industrial electrical service. Certified master electrician available. City of Pittsburgh electrical contracting license. Insured, registered, certified. No pressure, no haggles! Professional and reliable. Call us today with any questions you may have and we will be happy to give you a free estimate. Trip charge only on diagnostic calls.

"I wrote a review before, but the installation was perfect. Personable, caring, and well aware of their surroundings. They were so kind and quiet with the job. I barely heard and power tools and they left leaving no mess! I would highly recommend it!"

Nicole D on December 2021

Avatar for W B Lightning Rods

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
•Approved Pro

W B Lightning Rods

560 Peoples Plaza Unit 234
4.93(
297
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
250 local quotes requested

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

Avatar for Moskyok Electric

Moskyok Electric

High Point Lane.
5.00(
12
)

Moskyok Electric

High Point Lane.
5.00(
12
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are able to take care of your residential and small commercial electricial projects. Services offered are new construction, remodel/ old work, and repair and service work.

"Will definitely hire him again the next time we have electrical issues! He was very nice and explained the process he'd take to fix our issue to me so I understood. He was able to get it fixed within a week of me reaching out to him, and for a very reasonable price! Highly recommended for any electrical work you need done!"

Megan D on July 2022

We are able to take care of your residential and small commercial electricial projects. Services offered are new construction, remodel/ old work, and repair and service work.

"Will definitely hire him again the next time we have electrical issues! He was very nice and explained the process he'd take to fix our issue to me so I understood. He was able to get it fixed within a week of me reaching out to him, and for a very reasonable price! Highly recommended for any electrical work you need done!"

Megan D on July 2022

Northern Electrical LLC

82 Warrendale Bayne Road
5.00(
6
)

Northern Electrical LLC

82 Warrendale Bayne Road
5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Northern Electrical LLC is your “One Stop Shop” for all your electric and electrical needs. Northern Electrical LLC has been providing Western Pennsylvania with Superior Quality Service since 2001. Our motto is simple. “Provide the Highest Quality Customer Service” because in the long run we want to build a working relationship with you. Whether you’re a business owner, home owner, property management company, designer, builder or general contractor. We provide Expert Trouble Shooting Services, Panel Upgrades and Repairs, Remodels and New Construction, Commercial Lighting Retrofits, Recessed / LED Lighting Installation, Electrical Maintenance and Emergency Electrician On-Call Service. All Types of Electrical, both high and low voltage: Wiring Switches, Light and Receptacle Installation, New Circuits Installation, Home Entertainment & Automation Cabling, CCTV, & Audio Solutions.

"Northern Electric installed new outdoor step lights and highlight a tree and gave great suggestions on where to place the lighting to get the best illumination. They placed recessed lighting in different rooms of our home and placed them in the exact locations to amplify where the lighting was needed the most."

Lisa A on February 2018

Northern Electrical LLC is your “One Stop Shop” for all your electric and electrical needs. Northern Electrical LLC has been providing Western Pennsylvania with Superior Quality Service since 2001. Our motto is simple. “Provide the Highest Quality Customer Service” because in the long run we want to build a working relationship with you. Whether you’re a business owner, home owner, property management company, designer, builder or general contractor. We provide Expert Trouble Shooting Services, Panel Upgrades and Repairs, Remodels and New Construction, Commercial Lighting Retrofits, Recessed / LED Lighting Installation, Electrical Maintenance and Emergency Electrician On-Call Service. All Types of Electrical, both high and low voltage: Wiring Switches, Light and Receptacle Installation, New Circuits Installation, Home Entertainment & Automation Cabling, CCTV, & Audio Solutions.

"Northern Electric installed new outdoor step lights and highlight a tree and gave great suggestions on where to place the lighting to get the best illumination. They placed recessed lighting in different rooms of our home and placed them in the exact locations to amplify where the lighting was needed the most."

Lisa A on February 2018

Showing 1-10 of 34
Generator Install questions, answered by experts

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

When properly maintained, natural gas generators can last a long time, as much as 20 to 40 years. They have relatively few needs compared to generators with other fuel types. However, the generator’s lifespan ultimately depends on how often the generator is used and for how long it’s left running.

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.

Yes, installing a generator usually increases your property value because buyers are getting the added peace of mind knowing they’ll be able to maintain power through blackouts. In most cases, you should see close to a 100% return on investment (ROI). Keep in mind that home generators usually need a permanent foundation, and installing a concrete slab will likely raise your property taxes slightly.

The Derry, PA homeowners’ guide to generator installs

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

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